diff --git a/.appveyor.yml b/.appveyor.yml
index 9a0ae593..0ae212ad 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -19,7 +19,7 @@ build: false
 
 test_script:
   - rustup target add wasm32-unknown-unknown
-  - npm ci
+  - npm install
   - cargo test
   - cargo build --release -p wasm-bindgen-cli
   - where chromedriver
@@ -31,6 +31,7 @@ test_script:
 branches:
   only:
     - master
+    - /^\d/
 
 before_deploy:
   - ps: |
diff --git a/.gitignore b/.gitignore
index 3e7a542c..aedc2d91 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,5 @@ package-lock.json
 npm-shrinkwrap.json
 yarn.lock
 *.d.ts
+/publish
+/publish.exe
diff --git a/.travis.yml b/.travis.yml
index bfd64e01..6d48ccc9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ sudo: false
 INSTALL_NODE_VIA_NVM: &INSTALL_NODE_VIA_NVM
   |
     rustup target add wasm32-unknown-unknown
+    rustup component add llvm-tools-preview
     curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.8/install.sh | bash
     source ~/.nvm/nvm.sh
     nvm install v10.5
@@ -56,6 +57,7 @@ matrix:
         - cargo test
         # Run the main body of the test suite
         - cargo test --target wasm32-unknown-unknown
+        - cargo test --target wasm32-unknown-unknown --features nightly
         # Rerun the test suite but disable `--debug` in generated JS
         - WASM_BINDGEN_NO_DEBUG=1 cargo test --target wasm32-unknown-unknown
         # Make sure our serde tests work
@@ -74,7 +76,7 @@ matrix:
       env: JOB=examples-build
       install:
         - *INSTALL_NODE_VIA_NVM
-        - npm ci --verbose
+        - npm install
       script:
         - |
           for dir in `ls examples | grep -v README | grep -v asm.js | grep -v no_modules`; do
@@ -118,18 +120,6 @@ matrix:
         chrome: stable
       if: branch = master
 
-    # Tests pass on nightly using yarn
-    - rust: nightly
-      env: JOB=test-yarn-smoke
-      install:
-        - *INSTALL_NODE_VIA_NVM
-        - travis_retry curl -OLSf https://yarnpkg.com/install.sh
-        - travis_retry bash install.sh -- --version 1.7.0
-        - export PATH=$HOME/.yarn/bin:$PATH
-        - yarn install --freeze-lockfile
-      script: cargo test api::works
-      if: branch = master
-
     # WebIDL tests pass on nightly
     - rust: nightly
       env: JOB=test-webidl
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4b3a76d7..a97046a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -32,6 +32,36 @@ Released YYYY-MM-DD.
 
 --------------------------------------------------------------------------------
 
+## 0.2.19 (and 0.2.18)
+
+Released 2018-08-27.
+
+### Added
+
+* Added bindings to `js-sys` for some `WebAssembly` types.
+* Added bindings to `js-sys` for some `Intl` types.
+* Added bindings to `js-sys` for some `String` methods.
+* Added an example of using the WebAudio APIs.
+* Added an example of using the `fetch` API.
+* Added more `extends` annotations for types in `js-sys`.
+* Experimental support for `WeakRef` was added to automatically deallocate Rust
+  objects when gc'd.
+* Added support for executing `wasm-bindgen` over modules that import their
+  memory.
+* Added a global `memory()` function in the `wasm-bindgen` crate for accessing
+  the JS object that represent wasm's own memory.
+
+### Removed
+
+* Removed `AsMut` implementations for imported objects.
+
+### Fixed
+
+* Fixed the `constructor` and `catch` attributes combined on imported types.
+* Fixed importing the same-named static in two modules.
+
+--------------------------------------------------------------------------------
+
 ## 0.2.17
 
 Released 2018-08-16.
diff --git a/Cargo.toml b/Cargo.toml
index 778b461e..ea4b3f43 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,8 +1,12 @@
 [package]
 name = "wasm-bindgen"
-version = "0.2.17"
+version = "0.2.19"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
+# Because only a single `wasm_bindgen` version can be used in a dependency
+# graph, pretend we link a native library so that `cargo` will provide better
+# error messages than the esoteric linker errors we would otherwise trigger.
+links = "wasm_bindgen"
 readme = "README.md"
 categories = ["wasm"]
 repository = "https://github.com/rustwasm/wasm-bindgen"
@@ -21,21 +25,23 @@ default = ["spans", "std"]
 spans = ["wasm-bindgen-macro/spans"]
 std = []
 serde-serialize = ["serde", "serde_json", "std"]
+nightly = []
 
 # This is only for debugging wasm-bindgen! No stability guarantees, so enable
 # this at your own peril!
 xxx_debug_only_print_generated_code = ["wasm-bindgen-macro/xxx_debug_only_print_generated_code"]
 
 [dependencies]
-wasm-bindgen-macro = { path = "crates/macro", version = "=0.2.17" }
+wasm-bindgen-macro = { path = "crates/macro", version = "=0.2.19" }
 serde = { version = "1.0", optional = true }
 serde_json = { version = "1.0", optional = true }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
-wasm-bindgen-test = { path = 'crates/test', version = '=0.2.17' }
+js-sys = { path = 'crates/js-sys', version = '0.2.4' }
+wasm-bindgen-test = { path = 'crates/test', version = '=0.2.19' }
 serde_derive = "1.0"
-wasm-bindgen-test-crate-a = { path = 'tests/crates/a' }
-wasm-bindgen-test-crate-b = { path = 'tests/crates/b' }
+wasm-bindgen-test-crate-a = { path = 'tests/crates/a', version = '0.1' }
+wasm-bindgen-test-crate-b = { path = 'tests/crates/b', version = '0.1' }
 
 [workspace]
 members = [
@@ -56,6 +62,7 @@ members = [
   "examples/comments",
   "examples/console_log",
   "examples/dom",
+  "examples/fetch",
   "examples/guide-supported-types-examples",
   "examples/hello_world",
   "examples/import_js",
@@ -65,6 +72,7 @@ members = [
   "examples/performance",
   "examples/smorgasboard",
   "examples/wasm-in-wasm",
+  "examples/webaudio",
   "tests/no-std",
 ]
 
diff --git a/README.md b/README.md
index 5e827229..7ba48467 100644
--- a/README.md
+++ b/README.md
@@ -13,8 +13,6 @@
 Import JavaScript things into Rust and export Rust things to JavaScript.
 
 ```rust
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 use wasm_bindgen::prelude::*;
 
@@ -40,6 +38,27 @@ import { greet } from "./hello_world";
 greet("World!");
 ```
 
+## Features
+
+* **Lightweight.** Only pay for what you use. `wasm-bindgen` only generates
+  bindings and glue for the JavaScript imports you actually use and Rust
+  functionality that you export. For example, importing and using the
+  `document.querySelector` method doesn't cause `Node.prototype.appendChild` or
+  `window.alert` to be included in the bindings as well.
+
+* **ECMAScript modules.** Just import WebAssembly modules the same way you would
+  import JavaScript modules. Future compatible with [WebAssembly modules and
+  ECMAScript modules integration][wasm-es-modules].
+
+* **Designed with the ["host bindings" proposal][host-bindings] in mind.**
+  Eventually, there won't be any JavaScript shims between Rust-generated wasm
+  functions and native DOM methods. Because the wasm functions are statically
+  type checked, some of those native methods' dynamic type checks should become
+  unnecessary, promising to unlock even-faster-than-JavaScript DOM access.
+
+[wasm-es-modules]: https://github.com/WebAssembly/esm-integration
+[host-bindings]: https://github.com/WebAssembly/host-bindings/blob/master/proposals/host-bindings/Overview.md
+
 ## Guide
 
 [📚 Read the `wasm-bindgen` guide here! 📚](https://rustwasm.github.io/wasm-bindgen)
diff --git a/build.rs b/build.rs
new file mode 100644
index 00000000..0d19b826
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,2 @@
+// Empty `build.rs` so that `[package] links = ...` works in `Cargo.toml`.
+fn main() {}
diff --git a/crates/backend/Cargo.toml b/crates/backend/Cargo.toml
index 7d61d9ae..4fa91960 100644
--- a/crates/backend/Cargo.toml
+++ b/crates/backend/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-backend"
-version = "0.2.17"
+version = "0.2.19"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/backend"
@@ -11,7 +11,7 @@ Backend code generation of the wasm-bindgen tool
 """
 
 [features]
-spans = ["proc-macro2/nightly"]
+spans = []
 extra-traits = ["syn/extra-traits"]
 
 [dependencies]
@@ -21,4 +21,4 @@ proc-macro2 = "0.4.8"
 quote = '0.6'
 serde_json = "1.0"
 syn = { version = '0.14', features = ['full', 'visit'] }
-wasm-bindgen-shared = { path = "../shared", version = "=0.2.17" }
+wasm-bindgen-shared = { path = "../shared", version = "=0.2.19" }
diff --git a/crates/backend/src/ast.rs b/crates/backend/src/ast.rs
index e229131a..c4425f9d 100644
--- a/crates/backend/src/ast.rs
+++ b/crates/backend/src/ast.rs
@@ -100,6 +100,10 @@ pub enum ImportFunctionKind {
         ty: syn::Type,
         kind: MethodKind,
     },
+    ScopedMethod {
+        ty: syn::Type,
+        operation: Operation,
+    },
     Normal,
 }
 
@@ -408,6 +412,29 @@ impl ImportFunction {
     }
 
     fn shared(&self) -> shared::ImportFunction {
+        let shared_operation = |operation: &Operation| {
+            let is_static = operation.is_static;
+            let kind = match &operation.kind {
+                OperationKind::Regular => shared::OperationKind::Regular,
+                OperationKind::Getter(g) => {
+                    let g = g.as_ref().map(|g| g.to_string());
+                    shared::OperationKind::Getter(
+                        g.unwrap_or_else(|| self.infer_getter_property()),
+                        )
+                }
+                OperationKind::Setter(s) => {
+                    let s = s.as_ref().map(|s| s.to_string());
+                    shared::OperationKind::Setter(
+                        s.unwrap_or_else(|| self.infer_setter_property()),
+                        )
+                }
+                OperationKind::IndexingGetter => shared::OperationKind::IndexingGetter,
+                OperationKind::IndexingSetter => shared::OperationKind::IndexingSetter,
+                OperationKind::IndexingDeleter => shared::OperationKind::IndexingDeleter,
+            };
+            shared::Operation { is_static, kind }
+        };
+
         let method = match self.kind {
             ImportFunctionKind::Method {
                 ref class,
@@ -416,34 +443,21 @@ impl ImportFunction {
             } => {
                 let kind = match kind {
                     MethodKind::Constructor => shared::MethodKind::Constructor,
-                    MethodKind::Operation(Operation { is_static, kind }) => {
-                        let is_static = *is_static;
-                        let kind = match kind {
-                            OperationKind::Regular => shared::OperationKind::Regular,
-                            OperationKind::Getter(g) => {
-                                let g = g.as_ref().map(|g| g.to_string());
-                                shared::OperationKind::Getter(
-                                    g.unwrap_or_else(|| self.infer_getter_property()),
-                                )
-                            }
-                            OperationKind::Setter(s) => {
-                                let s = s.as_ref().map(|s| s.to_string());
-                                shared::OperationKind::Setter(
-                                    s.unwrap_or_else(|| self.infer_setter_property()),
-                                )
-                            }
-                            OperationKind::IndexingGetter => shared::OperationKind::IndexingGetter,
-                            OperationKind::IndexingSetter => shared::OperationKind::IndexingSetter,
-                            OperationKind::IndexingDeleter => shared::OperationKind::IndexingDeleter,
-                        };
-                        shared::MethodKind::Operation(shared::Operation { is_static, kind })
+                    MethodKind::Operation(op) => {
+                        shared::MethodKind::Operation(shared_operation(op))
                     }
                 };
                 Some(shared::MethodData {
-                    class: class.clone(),
+                    class: Some(class.clone()),
                     kind,
                 })
             }
+            ImportFunctionKind::ScopedMethod { ref operation, .. } => {
+                Some(shared::MethodData {
+                    class: None,
+                    kind: shared::MethodKind::Operation(shared_operation(operation)),
+                })
+            }
             ImportFunctionKind::Normal => None,
         };
 
diff --git a/crates/backend/src/codegen.rs b/crates/backend/src/codegen.rs
index 45711ba3..df04405f 100644
--- a/crates/backend/src/codegen.rs
+++ b/crates/backend/src/codegen.rs
@@ -618,9 +618,6 @@ impl ToTokens for ast::ImportType {
                     fn as_ref(&self) -> &JsValue { &self.obj }
                 }
 
-                impl AsMut<JsValue> for #rust_name {
-                    fn as_mut(&mut self) -> &mut JsValue { &mut self.obj }
-                }
 
                 impl From<#rust_name> for JsValue {
                     fn from(obj: #rust_name) -> JsValue {
@@ -656,12 +653,6 @@ impl ToTokens for ast::ImportType {
                         // wrapper around `val`
                         unsafe { &*(val as *const JsValue as *const #rust_name) }
                     }
-
-                    fn unchecked_from_js_mut(val: &mut JsValue) -> &mut Self {
-                        // Should be safe because `#rust_name` is a transparent
-                        // wrapper around `val`
-                        unsafe { &mut *(val as *mut JsValue as *mut #rust_name) }
-                    }
                 }
 
                 ()
@@ -683,13 +674,6 @@ impl ToTokens for ast::ImportType {
                         #superclass::unchecked_from_js_ref(self.as_ref())
                     }
                 }
-
-                impl AsMut<#superclass> for #rust_name {
-                    fn as_mut(&mut self) -> &mut #superclass {
-                        use wasm_bindgen::JsCast;
-                        #superclass::unchecked_from_js_mut(self.as_mut())
-                    }
-                }
             }).to_tokens(tokens);
         }
     }
@@ -800,6 +784,9 @@ impl TryToTokens for ast::ImportFunction {
                 }
                 class_ty = Some(ty);
             }
+            ast::ImportFunctionKind::ScopedMethod { ref ty, .. } => {
+                class_ty = Some(ty);
+            }
             ast::ImportFunctionKind::Normal => {}
         }
         let vis = &self.function.rust_vis;
@@ -1191,9 +1178,6 @@ impl ToTokens for ast::Dictionary {
                 impl AsRef<JsValue> for #name {
                     fn as_ref(&self) -> &JsValue { self.obj.as_ref() }
                 }
-                impl AsMut<JsValue> for #name {
-                    fn as_mut(&mut self) -> &mut JsValue { self.obj.as_mut() }
-                }
 
                 // Boundary conversion impls
                 impl WasmDescribe for #name {
@@ -1257,10 +1241,6 @@ impl ToTokens for ast::Dictionary {
                     fn unchecked_from_js_ref(val: &JsValue) -> &Self {
                         unsafe { &*(val as *const JsValue as *const #name) }
                     }
-
-                    fn unchecked_from_js_mut(val: &mut JsValue) -> &mut Self {
-                        unsafe { &mut *(val as *mut JsValue as *mut #name) }
-                    }
                 }
             };
         }).to_tokens(tokens);
diff --git a/crates/backend/src/defined.rs b/crates/backend/src/defined.rs
index a7f6359e..f697b502 100644
--- a/crates/backend/src/defined.rs
+++ b/crates/backend/src/defined.rs
@@ -246,6 +246,7 @@ impl ImportedTypes for ast::ImportFunctionKind {
     {
         match self {
             ast::ImportFunctionKind::Method { ty, .. } => ty.imported_types(f),
+            ast::ImportFunctionKind::ScopedMethod { ty, .. } => ty.imported_types(f),
             ast::ImportFunctionKind::Normal => {}
         }
     }
diff --git a/crates/cli-support/Cargo.toml b/crates/cli-support/Cargo.toml
index e47dfeb5..fe075b6c 100644
--- a/crates/cli-support/Cargo.toml
+++ b/crates/cli-support/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-cli-support"
-version = "0.2.17"
+version = "0.2.19"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/cli-support"
@@ -13,10 +13,10 @@ Shared support for the wasm-bindgen-cli package, an internal dependency
 [dependencies]
 base64 = "0.9"
 failure = "0.1.2"
-parity-wasm = "0.31"
+parity-wasm = "0.32"
 serde = "1.0"
 serde_json = "1.0"
 tempfile = "3.0"
-wasm-bindgen-shared = { path = "../shared", version = '=0.2.17' }
+wasm-bindgen-shared = { path = "../shared", version = '=0.2.19' }
+wasm-bindgen-wasm-interpreter = { path = "../wasm-interpreter", version = '=0.2.19' }
 wasm-gc-api = "0.1.9"
-wasmi = "0.3"
diff --git a/crates/cli-support/src/descriptor.rs b/crates/cli-support/src/descriptor.rs
index 122edad9..593e75a2 100644
--- a/crates/cli-support/src/descriptor.rs
+++ b/crates/cli-support/src/descriptor.rs
@@ -94,7 +94,7 @@ pub enum VectorKind {
 impl Descriptor {
     pub fn decode(mut data: &[u32]) -> Descriptor {
         let descriptor = Descriptor::_decode(&mut data);
-        assert!(data.is_empty());
+        assert!(data.is_empty(), "remaining data {:?}", data);
         descriptor
     }
 
diff --git a/crates/cli-support/src/js/mod.rs b/crates/cli-support/src/js/mod.rs
index b52f0e4d..c085abd4 100644
--- a/crates/cli-support/src/js/mod.rs
+++ b/crates/cli-support/src/js/mod.rs
@@ -10,6 +10,7 @@ use wasm_gc;
 
 use super::Bindgen;
 use descriptor::{Descriptor, VectorKind};
+use wasm_interpreter::Interpreter;
 
 mod js2rust;
 use self::js2rust::Js2Rust;
@@ -23,6 +24,8 @@ pub struct Context<'a> {
     pub typescript: String,
     pub exposed_globals: HashSet<&'static str>,
     pub required_internal_exports: HashSet<&'static str>,
+    pub imported_functions: HashSet<String>,
+    pub imported_statics: HashSet<String>,
     pub config: &'a Bindgen,
     pub module: &'a mut Module,
 
@@ -41,7 +44,8 @@ pub struct Context<'a> {
 
     pub exported_classes: HashMap<String, ExportedClass>,
     pub function_table_needed: bool,
-    pub run_descriptor: &'a Fn(&str) -> Option<Vec<u32>>,
+    pub interpreter: &'a mut Interpreter,
+    pub memory_init: Option<ResizableLimits>,
 }
 
 #[derive(Default)]
@@ -376,6 +380,19 @@ impl<'a> Context<'a> {
             ))
         })?;
 
+        self.bind("__wbindgen_memory", &|me| {
+            me.expose_add_heap_object();
+            let mem = me.memory();
+            Ok(format!(
+                "
+                function() {{
+                    return addHeapObject({});
+                }}
+                ", mem
+            ))
+        })?;
+
+        self.create_memory_export();
         self.unexport_unused_internal_exports();
         self.gc()?;
 
@@ -490,6 +507,39 @@ impl<'a> Context<'a> {
         let mut dst = format!("class {} {{\n", name);
         let mut ts_dst = format!("export {}", dst);
 
+        let (mkweakref, freeref) = if self.config.weak_refs {
+            // When weak refs are enabled we use them to automatically free the
+            // contents of an exported rust class when it's gc'd. Note that a
+            // manual `free` function still exists for deterministic
+            // destruction.
+            //
+            // This is implemented by using a `WeakRefGroup` to run finalizers
+            // for all `WeakRef` objects that it creates. Upon construction of
+            // a new wasm object we use `makeRef` with "holdings" of a thunk to
+            // free the wasm instance.  Once the `this` (the instance we're
+            // creating) is gc'd then the finalizer will run with the
+            // `WeakRef`, and we'll pull out the `holdings`, our pointer.
+            //
+            // Note, though, that if manual finalization happens we want to
+            // cancel the `WeakRef`-generated finalization, so we retain the
+            // `WeakRef` in a global map. This global map is then used to
+            // `drop()` the `WeakRef` (cancel finalization) whenever it is
+            // finalized.
+            self.expose_cleanup_groups();
+            let mk = format!("
+                const cleanup_ptr = this.ptr;
+                const ref = CLEANUPS.makeRef(this, () => free{}(cleanup_ptr));
+                CLEANUPS_MAP.set(this.ptr, ref);
+            ", name);
+            let free = "
+                CLEANUPS_MAP.get(ptr).drop();
+                CLEANUPS_MAP.delete(ptr);
+            ";
+            (mk, free)
+        } else {
+            (String::new(), "")
+        };
+
         if self.config.debug || class.constructor.is_some() {
             self.expose_constructor_token();
 
@@ -516,9 +566,11 @@ impl<'a> Context<'a> {
                     // This invocation of new will call this constructor with a ConstructorToken
                     let instance = {class}.{constructor}(...args);
                     this.ptr = instance.ptr;
+                    {mkweakref}
                     ",
                     class = name,
-                    constructor = constructor
+                    constructor = constructor,
+                    mkweakref = mkweakref,
                 ));
             } else {
                 dst.push_str(
@@ -537,9 +589,11 @@ impl<'a> Context<'a> {
 
                 constructor(ptr) {{
                     this.ptr = ptr;
+                    {}
                 }}
                 ",
-                name
+                name,
+                mkweakref,
             ));
         }
 
@@ -599,15 +653,26 @@ impl<'a> Context<'a> {
             }
         }
 
+        self.global(&format!(
+            "
+            function free{}(ptr) {{
+                {}
+                wasm.{}(ptr);
+            }}
+            ",
+            name,
+            freeref,
+            shared::free_function(&name)
+        ));
         dst.push_str(&format!(
             "
             free() {{
                 const ptr = this.ptr;
                 this.ptr = 0;
-                wasm.{}(ptr);
+                free{}(ptr);
             }}
             ",
-            shared::free_function(&name)
+            name,
         ));
         ts_dst.push_str("free(): void;\n");
         dst.push_str(&class.contents);
@@ -636,6 +701,20 @@ impl<'a> Context<'a> {
         }
     }
 
+    fn create_memory_export(&mut self) {
+        let limits = match self.memory_init.clone() {
+            Some(limits) => limits,
+            None => return,
+        };
+        let mut initializer = String::from("new WebAssembly.Memory({");
+        initializer.push_str(&format!("initial:{}", limits.initial()));
+        if let Some(max) = limits.maximum() {
+            initializer.push_str(&format!(",maximum:{}", max));
+        }
+        initializer.push_str("})");
+        self.export("memory", &initializer, None);
+    }
+
     fn rewrite_imports(&mut self, module_name: &str) {
         for (name, contents) in self._rewrite_imports(module_name) {
             self.export(&name, &contents, None);
@@ -666,6 +745,15 @@ impl<'a> Context<'a> {
                 continue;
             }
 
+            // If memory is imported we'll have exported it from the shim module
+            // so let's import it from there.
+            if import.field() == "memory" {
+                import.module_mut().truncate(0);
+                import.module_mut().push_str("./");
+                import.module_mut().push_str(module_name);
+                continue
+            }
+
             let renamed_import = format!("__wbindgen_{}", import.field());
             let mut bind_math = |expr: &str| {
                 math_imports.push((renamed_import.clone(), format!("function{}", expr)));
@@ -1091,13 +1179,30 @@ impl<'a> Context<'a> {
         }
         self.expose_text_decoder();
         self.expose_uint8_memory();
-        self.global(
-            "
-            function getStringFromWasm(ptr, len) {
-                return cachedDecoder.decode(getUint8Memory().subarray(ptr, ptr + len));
-            }
-            ",
-        );
+
+        // Typically we try to give a raw view of memory out to `TextDecoder` to
+        // avoid copying too much data. If, however, a `SharedArrayBuffer` is
+        // being used it looks like that is rejected by `TextDecoder` or
+        // otherwise doesn't work with it. When we detect a shared situation we
+        // use `slice` which creates a new array instead of `subarray` which
+        // creates just a view. That way in shared mode we copy more data but in
+        // non-shared mode there's no need to copy the data except for the
+        // string itself.
+        self.memory(); // set self.memory_init
+        let is_shared = self.module
+            .memory_section()
+            .map(|s| s.entries()[0].limits().shared())
+            .unwrap_or(match &self.memory_init {
+                Some(limits) => limits.shared(),
+                None => false,
+            });
+        let method = if is_shared { "slice" } else { "subarray" };
+
+        self.global(&format!("
+            function getStringFromWasm(ptr, len) {{
+                return cachedDecoder.decode(getUint8Memory().{}(ptr, ptr + len));
+            }}
+        ", method));
     }
 
     fn expose_get_array_js_value_from_wasm(&mut self) {
@@ -1284,18 +1389,20 @@ impl<'a> Context<'a> {
         if !self.exposed_globals.insert(name) {
             return;
         }
+        let mem = self.memory();
         self.global(&format!(
             "
             let cache{name} = null;
             function {name}() {{
-                if (cache{name} === null || cache{name}.buffer !== wasm.memory.buffer) {{
-                    cache{name} = new {js}(wasm.memory.buffer);
+                if (cache{name} === null || cache{name}.buffer !== {mem}.buffer) {{
+                    cache{name} = new {js}({mem}.buffer);
                 }}
                 return cache{name};
             }}
             ",
             name = name,
             js = js,
+            mem = mem,
         ));
     }
 
@@ -1594,6 +1701,18 @@ impl<'a> Context<'a> {
         ");
     }
 
+    fn expose_cleanup_groups(&mut self) {
+        if !self.exposed_globals.insert("cleanup_groups") {
+            return
+        }
+        self.global(
+            "
+                const CLEANUPS = new WeakRefGroup(x => x.holdings());
+                const CLEANUPS_MAP = new Map();
+            "
+        );
+    }
+
     fn gc(&mut self) -> Result<(), Error> {
         let module = mem::replace(self.module, Module::default());
         let module = module.parse_names().unwrap_or_else(|p| p.1);
@@ -1608,9 +1727,9 @@ impl<'a> Context<'a> {
         Ok(())
     }
 
-    fn describe(&self, name: &str) -> Option<Descriptor> {
+    fn describe(&mut self, name: &str) -> Option<Descriptor> {
         let name = format!("__wbindgen_describe_{}", name);
-        (self.run_descriptor)(&name).map(|d| Descriptor::decode(&d))
+        Some(Descriptor::decode(self.interpreter.interpret(&name, self.module)?))
     }
 
     fn global(&mut self, s: &str) {
@@ -1628,6 +1747,29 @@ impl<'a> Context<'a> {
     fn use_node_require(&self) -> bool {
         self.config.nodejs && !self.config.nodejs_experimental_modules
     }
+
+    fn memory(&mut self) -> &'static str {
+        if self.module.memory_section().is_some() {
+            return "wasm.memory";
+        }
+
+        let (entry, mem) = self.module.import_section()
+            .expect("must import memory")
+            .entries()
+            .iter()
+            .filter_map(|i| {
+                match i.external() {
+                    External::Memory(m) => Some((i, m)),
+                    _ => None,
+                }
+            })
+            .next()
+            .expect("must import memory");
+        assert_eq!(entry.module(), "env");
+        assert_eq!(entry.field(), "memory");
+        self.memory_init = Some(mem.limits().clone());
+        "memory"
+    }
 }
 
 impl<'a, 'b> SubContext<'a, 'b> {
@@ -1772,6 +1914,12 @@ impl<'a, 'b> SubContext<'a, 'b> {
         info: &shared::Import,
         import: &shared::ImportStatic,
     ) -> Result<(), Error> {
+        // The same static can be imported in multiple locations, so only
+        // generate bindings once for it.
+        if !self.cx.imported_statics.insert(import.shim.clone()) {
+            return Ok(())
+        }
+
         // TODO: should support more types to import here
         let obj = self.import_name(info, &import.name)?;
         self.cx.expose_add_heap_object();
@@ -1799,132 +1947,39 @@ impl<'a, 'b> SubContext<'a, 'b> {
             return Ok(());
         }
 
+        // It's possible for the same function to be imported in two locations,
+        // but we only want to generate one.
+        if !self.cx.imported_functions.insert(import.shim.clone()) {
+            return Ok(());
+        }
+
         let descriptor = match self.cx.describe(&import.shim) {
             None => return Ok(()),
             Some(d) => d,
         };
 
-        let target = match &import.method {
-            Some(shared::MethodData { class, kind }) => {
-                let class = self.import_name(info, class)?;
-                match kind {
-                    shared::MethodKind::Constructor => format!("new {}", class),
-                    shared::MethodKind::Operation(shared::Operation { is_static, kind }) => {
-                        let target = if import.structural {
-                            let location = if *is_static { &class } else { "this" };
+        let target = self.generated_import_target(info, import, &descriptor)?;
 
-                            match kind {
-                                shared::OperationKind::Regular => {
-                                    let nargs = descriptor.unwrap_function().arguments.len();
-                                    let mut s = format!("function(");
-                                    for i in 0..nargs - 1 {
-                                        if i > 0 {
-                                            drop(write!(s, ", "));
-                                        }
-                                        drop(write!(s, "x{}", i));
-                                    }
-                                    s.push_str(") { \nreturn this.");
-                                    s.push_str(&import.function.name);
-                                    s.push_str("(");
-                                    for i in 0..nargs - 1 {
-                                        if i > 0 {
-                                            drop(write!(s, ", "));
-                                        }
-                                        drop(write!(s, "x{}", i));
-                                    }
-                                    s.push_str(");\n}");
-                                    s
-                                }
-                                shared::OperationKind::Getter(g) => format!(
-                                    "function() {{
-                                        return {}.{};
-                                    }}",
-                                    location, g
-                                ),
-                                shared::OperationKind::Setter(s) => format!(
-                                    "function(y) {{
-                                        {}.{} = y;
-                                    }}",
-                                    location, s
-                                ),
-                                shared::OperationKind::IndexingGetter => format!(
-                                    "function(y) {{
-                                        return {}[y];
-                                    }}",
-                                    location
-                                ),
-                                shared::OperationKind::IndexingSetter => format!(
-                                    "function(y, z) {{
-                                        {}[y] = z;
-                                    }}",
-                                    location
-                                ),
-                                shared::OperationKind::IndexingDeleter => format!(
-                                    "function(y) {{
-                                        delete {}[y];
-                                    }}",
-                                    location
-                                ),
-                            }
-                        } else {
-                            let (location, binding) = if *is_static {
-                                ("", format!(".bind({})", class))
-                            } else {
-                                (".prototype", "".into())
-                            };
+        let js = Rust2Js::new(self.cx)
+            .catch(import.catch)
+            .variadic(import.variadic)
+            .process(descriptor.unwrap_function())?
+            .finish(&target);
+        self.cx.export(&import.shim, &js, None);
+        Ok(())
+    }
 
-                            match kind {
-                                shared::OperationKind::Regular => {
-                                    format!("{}{}.{}{}", class, location, import.function.name, binding)
-                                }
-                                shared::OperationKind::Getter(g) => {
-                                    self.cx.expose_get_inherited_descriptor();
-                                    format!(
-                                        "GetOwnOrInheritedPropertyDescriptor({}{}, '{}').get{}",
-                                        class, location, g, binding,
-                                    )
-                                }
-                                shared::OperationKind::Setter(s) => {
-                                    self.cx.expose_get_inherited_descriptor();
-                                    format!(
-                                        "GetOwnOrInheritedPropertyDescriptor({}{}, '{}').set{}",
-                                        class, location, s, binding,
-                                    )
-                                }
-                                shared::OperationKind::IndexingGetter => panic!("indexing getter should be structural"),
-                                shared::OperationKind::IndexingSetter => panic!("indexing setter should be structural"),
-                                shared::OperationKind::IndexingDeleter => panic!("indexing deleter should be structural"),
-                            }
-                        };
-
-                        let fallback = if import.structural {
-                            "".to_string()
-                        } else {
-                            format!(
-                                " || function() {{
-                                    throw new Error(`wasm-bindgen: {} does not exist`);
-                                }}",
-                                target
-                            )
-                        };
-
-                        self.cx.global(&format!(
-                            "
-                            const {}_target = {} {} ;
-                            ",
-                            import.shim, target, fallback
-                        ));
-                        format!(
-                            "{}_target{}",
-                            import.shim,
-                            if *is_static { "" } else { ".call" }
-                        )
-                    }
-                }
-            }
+    fn generated_import_target(
+        &mut self,
+        info: &shared::Import,
+        import: &shared::ImportFunction,
+        descriptor: &Descriptor,
+    ) -> Result<String, Error> {
+        let method_data = match &import.method {
+            Some(data) => data,
             None => {
                 let name = self.import_name(info, &import.function.name)?;
-                if name.contains(".") {
+                return Ok(if name.contains(".") {
                     self.cx.global(&format!(
                         "
                         const {}_target = {};
@@ -1934,17 +1989,146 @@ impl<'a, 'b> SubContext<'a, 'b> {
                     format!("{}_target", import.shim)
                 } else {
                     name
-                }
+                })
             }
         };
 
-        let js = Rust2Js::new(self.cx)
-            .catch(import.catch)
-            .variadic(import.variadic)
-            .process(descriptor.unwrap_function())?
-            .finish(&target);
-        self.cx.export(&import.shim, &js, None);
-        Ok(())
+        let class = match &method_data.class {
+            Some(class) => self.import_name(info, class)?,
+            None => {
+                let op = match &method_data.kind {
+                    shared::MethodKind::Operation(op) => op,
+                    shared::MethodKind::Constructor => {
+                        bail!("\"no class\" methods cannot be constructors")
+                    }
+                };
+                match &op.kind {
+                    shared::OperationKind::Regular => {
+                        return Ok(import.function.name.to_string())
+                    }
+                    shared::OperationKind::Getter(g) => {
+                        return Ok(format!("(() => {})", g));
+                    }
+                    shared::OperationKind::Setter(g) => {
+                        return Ok(format!("(v => {} = v)", g));
+                    }
+                    _ => bail!("\"no class\" methods must be regular/getter/setter"),
+                }
+
+            }
+        };
+        let op = match &method_data.kind {
+            shared::MethodKind::Constructor => return Ok(format!("new {}", class)),
+            shared::MethodKind::Operation(op) => op,
+        };
+        let target = if import.structural {
+            let location = if op.is_static { &class } else { "this" };
+
+            match &op.kind {
+                shared::OperationKind::Regular => {
+                    let nargs = descriptor.unwrap_function().arguments.len();
+                    let mut s = format!("function(");
+                    for i in 0..nargs - 1 {
+                        if i > 0 {
+                            drop(write!(s, ", "));
+                        }
+                        drop(write!(s, "x{}", i));
+                    }
+                    s.push_str(") { \nreturn this.");
+                    s.push_str(&import.function.name);
+                    s.push_str("(");
+                    for i in 0..nargs - 1 {
+                        if i > 0 {
+                            drop(write!(s, ", "));
+                        }
+                        drop(write!(s, "x{}", i));
+                    }
+                    s.push_str(");\n}");
+                    s
+                }
+                shared::OperationKind::Getter(g) => format!(
+                    "function() {{
+                        return {}.{};
+                    }}",
+                    location, g
+                ),
+                shared::OperationKind::Setter(s) => format!(
+                    "function(y) {{
+                        {}.{} = y;
+                    }}",
+                    location, s
+                ),
+                shared::OperationKind::IndexingGetter => format!(
+                    "function(y) {{
+                        return {}[y];
+                    }}",
+                    location
+                ),
+                shared::OperationKind::IndexingSetter => format!(
+                    "function(y, z) {{
+                        {}[y] = z;
+                    }}",
+                    location
+                ),
+                shared::OperationKind::IndexingDeleter => format!(
+                    "function(y) {{
+                        delete {}[y];
+                    }}",
+                    location
+                ),
+            }
+        } else {
+            let (location, binding) = if op.is_static {
+                ("", format!(".bind({})", class))
+            } else {
+                (".prototype", "".into())
+            };
+
+            match &op.kind {
+                shared::OperationKind::Regular => {
+                    format!("{}{}.{}{}", class, location, import.function.name, binding)
+                }
+                shared::OperationKind::Getter(g) => {
+                    self.cx.expose_get_inherited_descriptor();
+                    format!(
+                        "GetOwnOrInheritedPropertyDescriptor({}{}, '{}').get{}",
+                        class, location, g, binding,
+                    )
+                }
+                shared::OperationKind::Setter(s) => {
+                    self.cx.expose_get_inherited_descriptor();
+                    format!(
+                        "GetOwnOrInheritedPropertyDescriptor({}{}, '{}').set{}",
+                        class, location, s, binding,
+                    )
+                }
+                shared::OperationKind::IndexingGetter => panic!("indexing getter should be structural"),
+                shared::OperationKind::IndexingSetter => panic!("indexing setter should be structural"),
+                shared::OperationKind::IndexingDeleter => panic!("indexing deleter should be structural"),
+            }
+        };
+
+        let fallback = if import.structural {
+            "".to_string()
+        } else {
+            format!(
+                " || function() {{
+                    throw new Error(`wasm-bindgen: {} does not exist`);
+                }}",
+                target
+            )
+        };
+
+        self.cx.global(&format!(
+            "const {}_target = {}{};",
+            import.shim, target, fallback
+        ));
+        Ok(format!(
+            "{}_target{}",
+            import.shim,
+            if op.is_static { "" } else { ".call" }
+        ))
+>>>>>>> master
     }
 
     fn generate_import_type(
diff --git a/crates/cli-support/src/lib.rs b/crates/cli-support/src/lib.rs
index 5933a691..6af4ac1a 100644
--- a/crates/cli-support/src/lib.rs
+++ b/crates/cli-support/src/lib.rs
@@ -4,13 +4,13 @@ extern crate parity_wasm;
 extern crate wasm_bindgen_shared as shared;
 extern crate serde_json;
 extern crate wasm_gc;
-extern crate wasmi;
 #[macro_use]
 extern crate failure;
+extern crate wasm_bindgen_wasm_interpreter as wasm_interpreter;
 
 use std::any::Any;
 use std::collections::BTreeSet;
-use std::fmt;
+use std::env;
 use std::fs;
 use std::mem;
 use std::path::{Path, PathBuf};
@@ -33,6 +33,9 @@ pub struct Bindgen {
     typescript: bool,
     demangle: bool,
     keep_debug: bool,
+    // Experimental support for `WeakRefGroup`, an upcoming ECMAScript feature.
+    // Currently only enable-able through an env var.
+    weak_refs: bool,
 }
 
 enum Input {
@@ -55,6 +58,7 @@ impl Bindgen {
             typescript: false,
             demangle: true,
             keep_debug: false,
+            weak_refs: env::var("WASM_BINDGEN_WEAKREF").is_ok(),
         }
     }
 
@@ -179,13 +183,7 @@ impl Bindgen {
         // This means that whenever we encounter an import or export we'll
         // execute a shim function which informs us about its type so we can
         // then generate the appropriate bindings.
-        //
-        // TODO: avoid a `clone` here of the module if we can
-        let instance = wasmi::Module::from_parity_wasm_module(module.clone())
-            .with_context(|_| "failed to create wasmi module")?;
-        let instance = wasmi::ModuleInstance::new(&instance, &MyResolver)
-            .with_context(|_| "failed to instantiate wasm module")?;
-        let instance = instance.not_started_instance();
+        let mut instance = wasm_interpreter::Interpreter::new(&module);
 
         let (js, ts) = {
             let mut cx = js::Context {
@@ -201,20 +199,10 @@ impl Bindgen {
                 config: &self,
                 module: &mut module,
                 function_table_needed: false,
-                run_descriptor: &|name| {
-                    let mut v = MyExternals(Vec::new());
-                    match instance.invoke_export(name, &[], &mut v) {
-                        Ok(None) => Some(v.0),
-                        Ok(Some(_)) => unreachable!(
-                            "there is only one export, and we only return None from it"
-                        ),
-                        // Allow missing exported describe functions. This can
-                        // happen when a nested dependency crate exports things
-                        // but the root crate doesn't use them.
-                        Err(wasmi::Error::Function(_)) => None,
-                        Err(e) => panic!("unexpected error running descriptor: {}", e),
-                    }
-                },
+                interpreter: &mut instance,
+                memory_init: None,
+                imported_functions: Default::default(),
+                imported_statics: Default::default(),
             };
             for program in programs.iter() {
                 js::SubContext {
@@ -336,7 +324,6 @@ fn extract_programs(module: &mut Module) -> Result<Vec<shared::Program>, Error>
         to_remove.push(i);
 
         let mut payload = custom.payload();
-        let mut added_programs = Vec::new();
         while payload.len() > 0 {
             let len = ((payload[0] as usize) << 0)
                 | ((payload[1] as usize) << 8)
@@ -345,19 +332,6 @@ fn extract_programs(module: &mut Module) -> Result<Vec<shared::Program>, Error>
             let (a, b) = payload[4..].split_at(len as usize);
             payload = b;
 
-            // Due to a nasty LLVM bug it's currently possible for LLVM to
-            // duplicate custom section directives in intermediate object files.
-            // This means that we could see multiple program directives when in
-            // fact we were originally only meant to see one!
-            //
-            // Work around the issue here until the upstream bug,
-            // https://bugs.llvm.org/show_bug.cgi?id=38184, is hopefully fixed
-            // via some other means.
-            if added_programs.iter().any(|p| a == *p) {
-                continue
-            }
-            added_programs.push(a);
-
             let p: shared::ProgramOnlySchema = match serde_json::from_slice(&a) {
                 Ok(f) => f,
                 Err(e) => bail!("failed to decode what looked like wasm-bindgen data: {}", e),
@@ -404,106 +378,6 @@ to open an issue at https://github.com/rustwasm/wasm-bindgen/issues!
     Ok(ret)
 }
 
-struct MyResolver;
-
-impl wasmi::ImportResolver for MyResolver {
-    fn resolve_func(
-        &self,
-        module_name: &str,
-        field_name: &str,
-        signature: &wasmi::Signature,
-    ) -> Result<wasmi::FuncRef, wasmi::Error> {
-        // Route our special "describe" export to 1 and everything else to 0.
-        // That way whenever the function 1 is invoked we know what to do and
-        // when 0 is invoked (by accident) we'll trap and produce an error.
-        let idx = (module_name == "__wbindgen_placeholder__" && field_name == "__wbindgen_describe")
-            as usize;
-        Ok(wasmi::FuncInstance::alloc_host(signature.clone(), idx))
-    }
-
-    fn resolve_global(
-        &self,
-        _module_name: &str,
-        _field_name: &str,
-        descriptor: &wasmi::GlobalDescriptor,
-    ) -> Result<wasmi::GlobalRef, wasmi::Error> {
-        // dummy implementation to ensure instantiation succeeds
-        let val = match descriptor.value_type() {
-            wasmi::ValueType::I32 => wasmi::RuntimeValue::I32(0),
-            wasmi::ValueType::I64 => wasmi::RuntimeValue::I64(0),
-            wasmi::ValueType::F32 => wasmi::RuntimeValue::F32(0.0.into()),
-            wasmi::ValueType::F64 => wasmi::RuntimeValue::F64(0.0.into()),
-        };
-        Ok(wasmi::GlobalInstance::alloc(val, descriptor.is_mutable()))
-    }
-
-    fn resolve_memory(
-        &self,
-        _module_name: &str,
-        _field_name: &str,
-        descriptor: &wasmi::MemoryDescriptor,
-    ) -> Result<wasmi::MemoryRef, wasmi::Error> {
-        // dummy implementation to ensure instantiation succeeds
-        use wasmi::memory_units::Pages;
-        let initial = Pages(descriptor.initial() as usize);
-        let maximum = descriptor.maximum().map(|i| Pages(i as usize));
-        wasmi::MemoryInstance::alloc(initial, maximum)
-    }
-
-    fn resolve_table(
-        &self,
-        _module_name: &str,
-        _field_name: &str,
-        descriptor: &wasmi::TableDescriptor,
-    ) -> Result<wasmi::TableRef, wasmi::Error> {
-        // dummy implementation to ensure instantiation succeeds
-        let initial = descriptor.initial();
-        let maximum = descriptor.maximum();
-        wasmi::TableInstance::alloc(initial, maximum)
-    }
-}
-
-struct MyExternals(Vec<u32>);
-
-#[derive(Debug)]
-struct MyError(String);
-
-impl wasmi::Externals for MyExternals {
-    fn invoke_index(
-        &mut self,
-        index: usize,
-        args: wasmi::RuntimeArgs,
-    ) -> Result<Option<wasmi::RuntimeValue>, wasmi::Trap> {
-        macro_rules! bail {
-            ($($t:tt)*) => ({
-                let s = MyError(format!($($t)*));
-                return Err(wasmi::Trap::new(wasmi::TrapKind::Host(Box::new(s))))
-            })
-        }
-        // We only recognize one function here which was mapped to the index 1
-        // by the resolver above.
-        if index != 1 {
-            bail!("only __wbindgen_describe can be run at this time")
-        }
-        if args.len() != 1 {
-            bail!("must have exactly one argument");
-        }
-        match args.nth_value_checked(0)? {
-            wasmi::RuntimeValue::I32(i) => self.0.push(i as u32),
-            _ => bail!("expected one argument of i32 type"),
-        }
-        Ok(None)
-    }
-}
-
-impl wasmi::HostError for MyError {}
-
-impl fmt::Display for MyError {
-    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
-        self.0.fmt(f)
-    }
-}
-
 fn reset_indentation(s: &str) -> String {
     let mut indent: u32 = 0;
     let mut dst = String::new();
diff --git a/crates/cli-support/src/wasm2es6js.rs b/crates/cli-support/src/wasm2es6js.rs
index 9d7cda53..517ee635 100644
--- a/crates/cli-support/src/wasm2es6js.rs
+++ b/crates/cli-support/src/wasm2es6js.rs
@@ -150,19 +150,6 @@ impl Output {
         if let Some(i) = self.module.import_section() {
             let mut set = HashSet::new();
             for entry in i.entries() {
-                match *entry.external() {
-                    External::Function(_) => {}
-                    External::Table(_) => {
-                        bail!("wasm imports a table which isn't supported yet");
-                    }
-                    External::Memory(_) => {
-                        bail!("wasm imports memory which isn't supported yet");
-                    }
-                    External::Global(_) => {
-                        bail!("wasm imports globals which aren't supported yet");
-                    }
-                }
-
                 if !set.insert(entry.module()) {
                     continue;
                 }
diff --git a/crates/cli/Cargo.toml b/crates/cli/Cargo.toml
index 7f4291fa..84352a3b 100644
--- a/crates/cli/Cargo.toml
+++ b/crates/cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-cli"
-version = "0.2.17"
+version = "0.2.19"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/cli"
@@ -18,13 +18,13 @@ docopt = "1.0"
 env_logger = "0.5"
 failure = "0.1.2"
 log = "0.4"
-parity-wasm = "0.31"
+parity-wasm = "0.32"
 rouille = { version = "2.1.0", default-features = false }
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
-wasm-bindgen-cli-support = { path = "../cli-support", version = "=0.2.17" }
-wasm-bindgen-shared = { path = "../shared", version = "=0.2.17" }
+wasm-bindgen-cli-support = { path = "../cli-support", version = "=0.2.19" }
+wasm-bindgen-shared = { path = "../shared", version = "=0.2.19" }
 openssl = { version = '0.10.11', optional = true }
 
 [features]
diff --git a/crates/futures/Cargo.toml b/crates/futures/Cargo.toml
index 1e8fadab..1f982b71 100644
--- a/crates/futures/Cargo.toml
+++ b/crates/futures/Cargo.toml
@@ -7,12 +7,12 @@ license = "MIT/Apache-2.0"
 name = "wasm-bindgen-futures"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/futures"
 readme = "./README.md"
-version = "0.2.17"
+version = "0.2.19"
 
 [dependencies]
 futures = "0.1.20"
-js-sys = { path = "../js-sys", version = '0.2.1' }
-wasm-bindgen = { path = "../..", version = '0.2.17' }
+js-sys = { path = "../js-sys", version = '0.2.4' }
+wasm-bindgen = { path = "../..", version = '0.2.19' }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
-wasm-bindgen-test = { path = '../test', version = '0.2.17' }
+wasm-bindgen-test = { path = '../test', version = '0.2.19' }
diff --git a/crates/futures/src/lib.rs b/crates/futures/src/lib.rs
index 41bdd4e3..d8c672be 100644
--- a/crates/futures/src/lib.rs
+++ b/crates/futures/src/lib.rs
@@ -33,8 +33,6 @@
 //! `Promise`.
 //!
 //! ```rust,no_run
-//! #![feature(use_extern_macros)]
-//!
 //! extern crate futures;
 //! extern crate js_sys;
 //! extern crate wasm_bindgen;
@@ -104,7 +102,6 @@
 //! ```
 
 #![deny(missing_docs)]
-#![feature(use_extern_macros)]
 
 extern crate futures;
 extern crate wasm_bindgen;
diff --git a/crates/futures/tests/tests.rs b/crates/futures/tests/tests.rs
index a6225737..089003d5 100755
--- a/crates/futures/tests/tests.rs
+++ b/crates/futures/tests/tests.rs
@@ -1,4 +1,3 @@
-#![feature(use_extern_macros)]
 #![cfg(target_arch = "wasm32")]
 
 extern crate futures;
diff --git a/crates/js-sys/Cargo.toml b/crates/js-sys/Cargo.toml
index 0e74aa79..3aeca413 100644
--- a/crates/js-sys/Cargo.toml
+++ b/crates/js-sys/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "js-sys"
-version = "0.2.2"
+version = "0.2.4"
 authors = ["The wasm-bindgen Developers"]
 readme = "./README.md"
 categories = ["wasm"]
@@ -18,7 +18,9 @@ test = false
 doctest = false
 
 [dependencies]
-wasm-bindgen = { path = "../..", version = "0.2.17" }
+wasm-bindgen = { path = "../..", version = "0.2.19" }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
-wasm-bindgen-test = { path = '../test', version = '=0.2.17' }
+futures = "0.1.20"
+wasm-bindgen-test = { path = '../test', version = '=0.2.19' }
+wasm-bindgen-futures = { path = '../futures', version = '=0.2.19' }
diff --git a/crates/js-sys/src/lib.rs b/crates/js-sys/src/lib.rs
index 67cff622..89e728ee 100644
--- a/crates/js-sys/src/lib.rs
+++ b/crates/js-sys/src/lib.rs
@@ -17,7 +17,6 @@
 //! bindings.
 
 #![doc(html_root_url = "https://docs.rs/js-sys/0.2")]
-#![feature(use_extern_macros)]
 
 extern crate wasm_bindgen;
 
@@ -51,14 +50,14 @@ extern "C" {
     /// The `decodeURI()` function decodes a Uniform Resource Identifier (URI)
     /// previously created by `encodeURI` or by a similar routine.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/decodeURI
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/decodeURI)
     #[wasm_bindgen(catch, js_name = decodeURI)]
     pub fn decode_uri(encoded: &str) -> Result<JsString, JsValue>;
 
     /// The decodeURIComponent() function decodes a Uniform Resource Identifier (URI) component
     /// previously created by encodeURIComponent or by a similar routine.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/decodeURIComponent)
     #[wasm_bindgen(catch, js_name = decodeURIComponent)]
     pub fn decode_uri_component(encoded: &str) -> Result<JsString, JsValue>;
 
@@ -68,7 +67,7 @@ extern "C" {
     /// (will only be four escape sequences for characters composed of two
     /// "surrogate" characters).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURI
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURI)
     #[wasm_bindgen(js_name = encodeURI)]
     pub fn encode_uri(decoded: &str) -> JsString;
 
@@ -77,41 +76,41 @@ extern "C" {
     /// representing the UTF-8 encoding of the character
     /// (will only be four escape sequences for characters composed of two "surrogate" characters).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent)
     #[wasm_bindgen(js_name = encodeURIComponent)]
     pub fn encode_uri_component(decoded: &str) -> JsString;
 
     /// The `eval()` function evaluates JavaScript code represented as a string.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/eval
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/eval)
     #[wasm_bindgen(catch)]
     pub fn eval(js_source_text: &str) -> Result<JsValue, JsValue>;
 
     /// The global isFinite() function determines whether the passed value is a finite number.
     /// If  needed, the parameter is first converted to a number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinite
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/isFinite)
     #[wasm_bindgen(js_name = isFinite)]
     pub fn is_finite(value: &JsValue) -> bool;
 
     /// The `parseInt()` function parses a string argument and returns an integer
     /// of the specified radix (the base in mathematical numeral systems), or NaN on error.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt)
     #[wasm_bindgen(js_name = parseInt)]
     pub fn parse_int(text: &str, radix: u8) -> f64;
 
     /// The parseFloat() function parses an argument and returns a floating point number,
     /// or NaN on error.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseFloat
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseFloat)
     #[wasm_bindgen(js_name = parseFloat)]
     pub fn parse_float(text: &str) -> f64;
 
     /// The escape() function computes a new string in which certain characters have been
     /// replaced by a hexadecimal escape sequence.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/escape
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/escape)
     #[wasm_bindgen]
     pub fn escape(string: &str) -> JsString;
 
@@ -120,7 +119,7 @@ extern "C" {
     /// be introduced by a function like escape. Usually, decodeURI or decodeURIComponent
     /// are preferred over unescape.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/unescape
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/unescape)
     #[wasm_bindgen]
     pub fn unescape(string: &str) -> JsString;
 }
@@ -144,82 +143,82 @@ extern "C" {
     /// The copyWithin() method shallow copies part of an array to another
     /// location in the same array and returns it, without modifying its size.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/copyWithin
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/copyWithin)
     #[wasm_bindgen(method, js_name = copyWithin)]
     pub fn copy_within(this: &Array, target: i32, start: i32, end: i32) -> Array;
 
     /// The concat() method is used to merge two or more arrays. This method
     /// does not change the existing arrays, but instead returns a new array.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/concat
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/concat)
     #[wasm_bindgen(method)]
     pub fn concat(this: &Array, array: &Array) -> Array;
 
     /// The every() method tests whether all elements in the array pass the test
     /// implemented by the provided function.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/every
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/every)
     #[wasm_bindgen(method)]
     pub fn every(this: &Array, predicate: &mut FnMut(JsValue, u32, Array) -> bool) -> bool;
 
     /// The fill() method fills all the elements of an array from a start index
     /// to an end index with a static value. The end index is not included.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/fill
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/fill)
     #[wasm_bindgen(method)]
     pub fn fill(this: &Array, value: &JsValue, start: u32, end: u32) -> Array;
 
     /// The `filter()` method creates a new array with all elements that pass the
     /// test implemented by the provided function.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter)
     #[wasm_bindgen(method)]
     pub fn filter(this: &Array, predicate: &mut FnMut(JsValue, u32, Array) -> bool) -> Array;
 
     /// The `find()` method returns the value of the first element in the array that satisfies
     ///  the provided testing function. Otherwise `undefined` is returned.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find)
     #[wasm_bindgen(method)]
     pub fn find(this: &Array, predicate: &mut FnMut(JsValue, u32, Array) -> bool) -> JsValue;
 
     /// The findIndex() method returns the index of the first element in the array that
     /// satisfies the provided testing function. Otherwise -1 is returned.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/findIndex
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/findIndex)
     #[wasm_bindgen(method, js_name = findIndex)]
     pub fn find_index(this: &Array, predicate: &mut FnMut(JsValue, u32, Array) -> bool) -> i32;
 
     /// The `forEach()` method executes a provided function once for each array element.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach)
     #[wasm_bindgen(method, js_name = forEach)]
     pub fn for_each(this: &Array, callback: &mut FnMut(JsValue, u32, Array));
 
     /// The includes() method determines whether an array includes a certain
     /// element, returning true or false as appropriate.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes)
     #[wasm_bindgen(method)]
     pub fn includes(this: &Array, value: &JsValue, from_index: i32) -> bool;
 
     /// The indexOf() method returns the first index at which a given element
     /// can be found in the array, or -1 if it is not present.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf)
     #[wasm_bindgen(method, js_name = indexOf)]
     pub fn index_of(this: &Array, value: &JsValue, from_index: i32) -> i32;
 
     /// The Array.isArray() method determines whether the passed value is an Array.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray)
     #[wasm_bindgen(static_method_of = Array, js_name = isArray)]
     pub fn is_array(value: &JsValue) -> bool;
 
     /// The join() method joins all elements of an array (or an array-like object)
     /// into a string and returns this string.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/join
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/join)
     #[wasm_bindgen(method)]
     pub fn join(this: &Array, delimiter: &str) -> JsString;
 
@@ -227,7 +226,7 @@ extern "C" {
     /// can be found in the array, or -1 if it is not present. The array is
     /// searched backwards, starting at fromIndex.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/lastIndexOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/lastIndexOf)
     #[wasm_bindgen(method, js_name = lastIndexOf)]
     pub fn last_index_of(this: &Array, value: &JsValue, from_index: i32) -> i32;
 
@@ -236,7 +235,7 @@ extern "C" {
     /// unsigned, 32-bit integer that is always numerically greater than the
     /// highest index in the array.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/length
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/length)
     #[wasm_bindgen(method, getter, structural)]
     pub fn length(this: &Array) -> u32;
 
@@ -246,7 +245,7 @@ extern "C" {
     /// It is not called for missing elements of the array (that is, indexes that have
     /// never been set, which have been deleted or which have never been assigned a value).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map)
     #[wasm_bindgen(method)]
     pub fn map(this: &Array, predicate: &mut FnMut(JsValue, u32, Array) -> JsValue) -> Array;
 
@@ -259,7 +258,7 @@ extern "C" {
     /// property of `7` (Note: this implies an array of 7 empty slots, not slots
     /// with actual undefined values).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/of
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/of)
     ///
     /// # Notes
     ///
@@ -268,61 +267,61 @@ extern "C" {
     #[wasm_bindgen(static_method_of = Array, js_name = of)]
     pub fn of1(a: &JsValue) -> Array;
 
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/of
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/of)
     #[wasm_bindgen(static_method_of = Array, js_name = of)]
     pub fn of2(a: &JsValue, b: &JsValue) -> Array;
 
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/of
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/of)
     #[wasm_bindgen(static_method_of = Array, js_name = of)]
     pub fn of3(a: &JsValue, b: &JsValue, c: &JsValue) -> Array;
 
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/of
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/of)
     #[wasm_bindgen(static_method_of = Array, js_name = of)]
     pub fn of4(a: &JsValue, b: &JsValue, c: &JsValue, d: &JsValue) -> Array;
 
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/of
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/of)
     #[wasm_bindgen(static_method_of = Array, js_name = of)]
     pub fn of5(a: &JsValue, b: &JsValue, c: &JsValue, d: &JsValue, e: &JsValue) -> Array;
 
     /// The pop() method removes the last element from an array and returns that
     /// element. This method changes the length of the array.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/pop
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/pop)
     #[wasm_bindgen(method)]
     pub fn pop(this: &Array) -> JsValue;
 
     /// The push() method adds one or more elements to the end of an array and
     /// returns the new length of the array.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push)
     #[wasm_bindgen(method)]
     pub fn push(this: &Array, value: &JsValue) -> u32;
 
     /// The reduce() method applies a function against an accumulator and each element in
     /// the array (from left to right) to reduce it to a single value.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce)
     #[wasm_bindgen(method)]
     pub fn reduce(this: &Array, predicate: &mut FnMut(JsValue, JsValue, u32, Array) -> JsValue, initial_value: &JsValue) -> JsValue;
 
     /// The reduceRight() method applies a function against an accumulator and each value
     /// of the array (from right-to-left) to reduce it to a single value.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/ReduceRight
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/ReduceRight)
     #[wasm_bindgen(method, js_name = reduceRight)]
     pub fn reduce_right(this: &Array, predicate: &mut FnMut(JsValue, JsValue, u32, Array) -> JsValue, initial_value: &JsValue) -> JsValue;
 
     /// The reverse() method reverses an array in place. The first array
     /// element becomes the last, and the last array element becomes the first.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reverse
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reverse)
     #[wasm_bindgen(method)]
     pub fn reverse(this: &Array) -> Array;
 
     /// The shift() method removes the first element from an array and returns
     /// that removed element. This method changes the length of the array.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/shift
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/shift)
     #[wasm_bindgen(method)]
     pub fn shift(this: &Array) -> JsValue;
 
@@ -330,14 +329,14 @@ extern "C" {
     /// a new array object selected from begin to end (end not included).
     /// The original array will not be modified.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/slice
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/slice)
     #[wasm_bindgen(method)]
     pub fn slice(this: &Array, start: u32, end: u32) -> Array;
 
     /// The some() method tests whether at least one element in the array passes the test implemented
     /// by the provided function.
     /// Note: This method returns false for any condition put on an empty array.
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some)
     #[wasm_bindgen(method)]
     pub fn some(this: &Array, predicate: &mut FnMut(JsValue) -> bool) -> bool;
 
@@ -348,14 +347,14 @@ extern "C" {
     /// The time and space complexity of the sort cannot be guaranteed as it
     /// is implementation dependent.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort)
     #[wasm_bindgen(method)]
     pub fn sort(this: &Array) -> Array;
 
     /// The splice() method changes the contents of an array by removing existing elements and/or
     /// adding new elements.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice)
     #[wasm_bindgen(method)]
     pub fn splice(this: &Array, start: u32, delete_count: u32, item: &JsValue) -> Array;
 
@@ -363,21 +362,21 @@ extern "C" {
     /// The elements are converted to Strings using their toLocaleString methods and these
     /// Strings are separated by a locale-specific String (such as a comma “,”).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/toLocaleString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/toLocaleString)
     #[wasm_bindgen(method, js_name = toLocaleString)]
     pub fn to_locale_string(this: &Array, locales: &JsValue, options: &JsValue) -> JsString;
 
     /// The toString() method returns a string representing the specified array
     /// and its elements.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/toString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/toString)
     #[wasm_bindgen(method, js_name = toString)]
     pub fn to_string(this: &Array) -> JsString;
 
     /// The unshift() method adds one or more elements to the beginning of an
     /// array and returns the new length of the array.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/unshift
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/unshift)
     #[wasm_bindgen(method)]
     pub fn unshift(this: &Array, value: &JsValue) -> u32;
 }
@@ -396,7 +395,7 @@ extern "C" {
     /// which represents the buffer in a specific format, and use that
     /// to read and write the contents of the buffer.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer)
     #[wasm_bindgen(constructor)]
     pub fn new(length: u32) -> ArrayBuffer;
 
@@ -406,14 +405,14 @@ extern "C" {
     /// The value is established when the array is constructed and cannot be changed.
     /// This property returns 0 if this ArrayBuffer has been detached.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/byteLength
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/byteLength)
     #[wasm_bindgen(method, getter, js_name = byteLength)]
     pub fn byte_length(this: &ArrayBuffer) -> u32;
 
     /// The `isView()` method returns true if arg is one of the `ArrayBuffer`
     /// views, such as typed array objects or a DataView; false otherwise.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/isView
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/isView)
     #[wasm_bindgen(static_method_of = ArrayBuffer, js_name = isView)]
     pub fn is_view(value: &JsValue) -> bool;
 
@@ -421,13 +420,13 @@ extern "C" {
     /// are a copy of this `ArrayBuffer`'s bytes from begin, inclusive,
     /// up to end, exclusive.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/slice
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/slice)
     #[wasm_bindgen(method)]
     pub fn slice(this: &ArrayBuffer, begin: u32) -> ArrayBuffer;
 
     /// Like `slice()` but with the `end` argument.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/slice
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer/slice)
     #[wasm_bindgen(method, js_name = slice)]
     pub fn slice_with_end(this: &ArrayBuffer, begin: u32, end: u32) -> ArrayBuffer;
 }
@@ -438,21 +437,21 @@ extern "C" {
     /// The keys() method returns a new Array Iterator object that contains the
     /// keys for each index in the array.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/keys
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/keys)
     #[wasm_bindgen(method)]
     pub fn keys(this: &Array) -> Iterator;
 
     /// The entries() method returns a new Array Iterator object that contains
     /// the key/value pairs for each index in the array.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/entries
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/entries)
     #[wasm_bindgen(method)]
     pub fn entries(this: &Array) -> Iterator;
 
     /// The values() method returns a new Array Iterator object that
     /// contains the values for each index in the array.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/values
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/values)
     #[wasm_bindgen(method)]
     pub fn values(this: &Array) -> Iterator;
 }
@@ -466,13 +465,13 @@ extern "C" {
 
     /// The `Boolean()` constructor creates an object wrapper for a boolean value.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean)
     #[wasm_bindgen(constructor)]
     pub fn new(value: &JsValue) -> Boolean;
 
     /// The `valueOf()` method returns the primitive value of a `Boolean` object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean/valueOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean/valueOf)
     #[wasm_bindgen(method, js_name = valueOf)]
     pub fn value_of(this: &Boolean) -> bool;
 }
@@ -488,139 +487,139 @@ extern "C" {
     /// writing multiple number types in an `ArrayBuffer` irrespective of the
     /// platform's endianness.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView)
     #[wasm_bindgen(constructor)]
     pub fn new(buffer: &ArrayBuffer, byteOffset: usize, byteLength: usize) -> DataView;
 
     /// The ArrayBuffer referenced by this view. Fixed at construction time and thus read only.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/buffer
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/buffer)
     #[wasm_bindgen(method, getter, structural)]
     pub fn buffer(this: &DataView) -> ArrayBuffer;
 
     /// The length (in bytes) of this view from the start of its ArrayBuffer.
     /// Fixed at construction time and thus read only.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/byteLength
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/byteLength)
     #[wasm_bindgen(method, getter, structural, js_name = byteLength)]
     pub fn byte_length(this: &DataView) -> usize;
 
     /// The offset (in bytes) of this view from the start of its ArrayBuffer.
     /// Fixed at construction time and thus read only.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/byteOffset
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/byteOffset)
     #[wasm_bindgen(method, getter, structural, js_name = byteOffset)]
     pub fn byte_offset(this: &DataView) -> usize;
 
     /// The getInt8() method gets a signed 8-bit integer (byte) at the
     /// specified byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getInt8
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getInt8)
     #[wasm_bindgen(method, js_name = getInt8)]
     pub fn get_int8(this: &DataView, byte_offset: usize) -> i8;
 
     /// The getUint8() method gets a unsigned 8-bit integer (byte) at the specified
     /// byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getUint8
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getUint8)
     #[wasm_bindgen(method, js_name = getUint8)]
     pub fn get_uint8(this: &DataView, byte_offset: usize) -> u8;
 
     /// The getInt16() method gets a signed 16-bit integer (byte) at the specified
     /// byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getInt16
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getInt16)
     #[wasm_bindgen(method, js_name = getInt16)]
     pub fn get_int16(this: &DataView, byte_offset: usize) -> i16;
 
     /// The getUint16() an unsigned 16-bit integer (unsigned byte) at the specified
     /// byte offset from the start of the view.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getUint16
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getUint16)
     #[wasm_bindgen(method, js_name = getUint16)]
     pub fn get_uint16(this: &DataView, byte_offset: usize) -> u16;
 
     /// The getInt32() method gets a signed 16-bit integer (byte) at the specified
     /// byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getInt32
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getInt32)
     #[wasm_bindgen(method, js_name = getInt32)]
     pub fn get_int32(this: &DataView, byte_offset: usize) -> i32;
 
     /// The getUint32() an unsigned 16-bit integer (unsigned byte) at the specified
     /// byte offset from the start of the view.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getUint32
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getUint32)
     #[wasm_bindgen(method, js_name = getUint32)]
     pub fn get_uint32(this: &DataView, byte_offset: usize) -> u32;
 
     /// The getFloat32() method gets a signed 32-bit float (float) at the specified
     /// byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getFloat32
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getFloat32)
     #[wasm_bindgen(method, js_name = getFloat32)]
     pub fn get_float32(this: &DataView, byte_offset: usize) -> f32;
 
     /// The getFloat64() method gets a signed 32-bit float (float) at the specified
     /// byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getFloat64
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/getFloat64)
     #[wasm_bindgen(method, js_name = getFloat64)]
     pub fn get_float64(this: &DataView, byte_offset: usize) -> f64;
 
     /// The setInt8() method stores a signed 8-bit integer (byte) value at the
     /// specified byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setInt8
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setInt8)
     #[wasm_bindgen(method, js_name = setInt8)]
     pub fn set_int8(this: &DataView, byte_offset: usize, value: i8);
 
     /// The setUint8() method stores an unsigned 8-bit integer (byte) value at the
     /// specified byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint8
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint8)
     #[wasm_bindgen(method, js_name = setUint8)]
     pub fn set_uint8(this: &DataView, byte_offset: usize, value: u8);
 
     /// The setInt16() method stores a signed 16-bit integer (byte) value at the
     /// specified byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setInt16
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setInt16)
     #[wasm_bindgen(method, js_name = setInt16)]
     pub fn set_int16(this: &DataView, byte_offset: usize, value: i16);
 
     /// The setUint16() method stores an unsigned 16-bit integer (byte) value at the
     /// specified byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint16
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint16)
     #[wasm_bindgen(method, js_name = setUint16)]
     pub fn set_uint16(this: &DataView, byte_offset: usize, value: u16);
 
     /// The setInt32() method stores a signed 32-bit integer (byte) value at the
     /// specified byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setInt32
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setInt32)
     #[wasm_bindgen(method, js_name = setInt32)]
     pub fn set_int32(this: &DataView, byte_offset: usize, value: i32);
 
     /// The setUint32() method stores an unsigned 32-bit integer (byte) value at the
     /// specified byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint32
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setUint32)
     #[wasm_bindgen(method, js_name = setUint32)]
     pub fn set_uint32(this: &DataView, byte_offset: usize, value: u32);
 
     /// The setFloat32() method stores a signed 32-bit float (float) value at the
     /// specified byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setFloat32
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setFloat32)
     #[wasm_bindgen(method, js_name = setFloat32)]
     pub fn set_float32(this: &DataView, byte_offset: usize, value: f32);
 
     /// The setFloat64() method stores a signed 64-bit float (float) value at the
     /// specified byte offset from the start of the DataView.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setFloat64
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView/setFloat64)
     #[wasm_bindgen(method, js_name = setFloat64)]
     pub fn set_float64(this: &DataView, byte_offset: usize, value: f64);
 }
@@ -637,13 +636,13 @@ extern "C" {
     /// The Error object can also be used as a base object for user-defined exceptions.
     /// See below for standard built-in error types.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error)
     #[wasm_bindgen(constructor)]
     pub fn new(message: &str) -> Error;
 
     /// The message property is a human-readable description of the error.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/message
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/message)
     #[wasm_bindgen(method, getter, structural)]
     pub fn message(this: &Error) -> JsString;
     #[wasm_bindgen(method, setter, structural)]
@@ -651,7 +650,7 @@ extern "C" {
 
     /// The name property represents a name for the type of error. The initial value is "Error".
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/name
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/name)
     #[wasm_bindgen(method, getter, structural)]
     pub fn name(this: &Error) -> JsString;
     #[wasm_bindgen(method, setter, structural)]
@@ -659,7 +658,7 @@ extern "C" {
 
     /// The toString() method returns a string representing the specified Error object
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/toString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/toString)
     #[wasm_bindgen(method, js_name = toString)]
     pub fn to_string(this: &Error) -> JsString;
 }
@@ -675,7 +674,7 @@ extern "C" {
     /// exception is not thrown by JavaScript anymore, however the EvalError object remains for
     /// compatibility.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/EvalError
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/EvalError)
     #[wasm_bindgen(constructor)]
     pub fn new(message: &str) -> EvalError;
 }
@@ -689,14 +688,14 @@ extern "C" {
 
     /// The `Float32Array()` constructor creates an array of 32-bit floats.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float32Array
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float32Array)
     #[wasm_bindgen(constructor)]
     pub fn new(constructor_arg: &JsValue) -> Float32Array;
 
     /// The fill() method fills all the elements of an array from a start index
     /// to an end index with a static value. The end index is not included.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill)
     #[wasm_bindgen(method)]
     pub fn fill(this: &Float32Array, value: f32, start: u32, end: u32) -> Float32Array;
 
@@ -742,14 +741,14 @@ extern "C" {
 
     /// The `Float64Array()` constructor creates an array of 64-bit floats.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float64Array
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Float64Array)
     #[wasm_bindgen(constructor)]
     pub fn new(constructor_arg: &JsValue) -> Float64Array;
 
     /// The fill() method fills all the elements of an array from a start index
     /// to an end index with a static value. The end index is not included.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill)
     #[wasm_bindgen(method)]
     pub fn fill(this: &Float64Array, value: f64, start: u32, end: u32) -> Float64Array;
 
@@ -800,55 +799,55 @@ extern "C" {
     /// allows executing code in the global scope, prompting better programming
     /// habits and allowing for more efficient code minification.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function)
     #[wasm_bindgen(constructor)]
     pub fn new_no_args(body: &str) -> Function;
 
     /// The apply() method calls a function with a given this value, and arguments provided as an array
     /// (or an array-like object).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/apply
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/apply)
     #[wasm_bindgen(method, catch)]
     pub fn apply(this: &Function, context: &JsValue, args: &Array) -> Result<JsValue, JsValue>;
 
     /// The `call()` method calls a function with a given this value and
     /// arguments provided individually.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call)
     #[wasm_bindgen(method, catch, js_name = call)]
     pub fn call0(this: &Function, context: &JsValue) -> Result<JsValue, JsValue>;
 
     /// The `call()` method calls a function with a given this value and
     /// arguments provided individually.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call)
     #[wasm_bindgen(method, catch, js_name = call)]
     pub fn call1(this: &Function, context: &JsValue, arg1: &JsValue) -> Result<JsValue, JsValue>;
 
     /// The `call()` method calls a function with a given this value and
     /// arguments provided individually.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call)
     #[wasm_bindgen(method, catch, js_name = call)]
     pub fn call2(this: &Function, context: &JsValue, arg1: &JsValue, arg2: &JsValue) -> Result<JsValue, JsValue>;
 
     /// The `call()` method calls a function with a given this value and
     /// arguments provided individually.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/call)
     #[wasm_bindgen(method, catch, js_name = call)]
     pub fn call3(this: &Function, context: &JsValue, arg1: &JsValue, arg2: &JsValue, arg3: &JsValue) -> Result<JsValue, JsValue>;
 
     /// The bind() method creates a new function that, when called, has its this keyword set to the provided value,
     /// with a given sequence of arguments preceding any provided when the new function is called.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind)
     #[wasm_bindgen(method)]
     pub fn bind(this: &Function, context: &JsValue) -> Function;
 
     /// The length property indicates the number of arguments expected by the function.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/length
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/length)
     #[wasm_bindgen(method, getter, structural)]
     pub fn length(this: &Function) -> u32;
 
@@ -856,13 +855,13 @@ extern "C" {
     /// name as specified when it was created or "anonymous" for functions
     /// created anonymously.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name)
     #[wasm_bindgen(method, getter, structural)]
     pub fn name(this: &Function) -> JsString;
 
     /// The toString() method returns a string representing the source code of the function.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/toString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/toString)
     #[wasm_bindgen(method, js_name = toString)]
     pub fn to_string(this: &Function) -> JsString;
 }
@@ -885,26 +884,27 @@ impl Function {
 // Generator
 #[wasm_bindgen]
 extern {
+    #[wasm_bindgen(extends = Object)]
     #[derive(Clone, Debug)]
     pub type Generator;
 
     /// The next() method returns an object with two properties done and value.
     /// You can also provide a parameter to the next method to send a value to the generator.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Generator/next
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Generator/next)
     #[wasm_bindgen(method, structural, catch)]
     pub fn next(this: &Generator, value: &JsValue) -> Result<JsValue, JsValue>;
 
     /// The return() method returns the given value and finishes the generator.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Generator/return
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Generator/return)
     #[wasm_bindgen(method, structural, js_name = return)]
     pub fn return_(this: &Generator, value: &JsValue) -> JsValue;
 
     /// The throw() method resumes the execution of a generator by throwing an error into it
     /// and returns an object with two properties done and value.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Generator/throw
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Generator/throw)
     #[wasm_bindgen(method, structural, catch)]
     pub fn throw(this: &Generator, error: &Error) -> Result<JsValue, JsValue>;
 }
@@ -918,14 +918,14 @@ extern "C" {
 
     /// The `Int8Array()` constructor creates an array of signed 8-bit integers.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Int8Array
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Int8Array)
     #[wasm_bindgen(constructor)]
     pub fn new(constructor_arg: &JsValue) -> Int8Array;
 
     /// The fill() method fills all the elements of an array from a start index
     /// to an end index with a static value. The end index is not included.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill)
     #[wasm_bindgen(method)]
     pub fn fill(this: &Int8Array, value: i8, start: u32, end: u32) -> Int8Array;
 
@@ -971,14 +971,14 @@ extern "C" {
 
     /// The `Int16Array()` constructor creates an array of signed 16-bit integers.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Int16Array
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Int16Array)
     #[wasm_bindgen(constructor)]
     pub fn new(constructor_arg: &JsValue) -> Int16Array;
 
     /// The fill() method fills all the elements of an array from a start index
     /// to an end index with a static value. The end index is not included.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill)
     #[wasm_bindgen(method)]
     pub fn fill(this: &Int16Array, value: i16, start: u32, end: u32) -> Int16Array;
 
@@ -1024,14 +1024,14 @@ extern "C" {
 
     /// The `Int32Array()` constructor creates an array of signed 32-bit integers.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Int32Array
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Int32Array)
     #[wasm_bindgen(constructor)]
     pub fn new(constructor_arg: &JsValue) -> Int32Array;
 
     /// The fill() method fills all the elements of an array from a start index
     /// to an end index with a static value. The end index is not included.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill)
     #[wasm_bindgen(method)]
     pub fn fill(this: &Int32Array, value: i32, start: u32, end: u32) -> Int32Array;
 
@@ -1077,47 +1077,47 @@ extern {
 
     /// The clear() method removes all elements from a Map object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/clear
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/clear)
     #[wasm_bindgen(method)]
     pub fn clear(this: &Map);
 
     /// The delete() method removes the specified element from a Map object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/delete
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/delete)
     #[wasm_bindgen(method)]
     pub fn delete(this: &Map, key: &JsValue) -> bool;
 
     /// The forEach() method executes a provided function once per each
     /// key/value pair in the Map object, in insertion order.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/forEach
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/forEach)
     #[wasm_bindgen(method, js_name = forEach)]
     pub fn for_each(this: &Map, callback: &mut FnMut(JsValue, JsValue));
 
     /// The get() method returns a specified element from a Map object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/get
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/get)
     #[wasm_bindgen(method)]
     pub fn get(this: &Map, key: &JsValue) -> JsValue;
 
     /// The has() method returns a boolean indicating whether an element with
     /// the specified key exists or not.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/has
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/has)
     #[wasm_bindgen(method)]
     pub fn has(this: &Map, key: &JsValue) -> bool;
 
     /// The Map object holds key-value pairs. Any value (both objects and
     /// primitive values) maybe used as either a key or a value.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map)
     #[wasm_bindgen(constructor)]
     pub fn new() -> Map;
 
     /// The set() method adds or updates an element with a specified key
     /// and value to a Map object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/set
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/set)
     #[wasm_bindgen(method)]
     pub fn set(this: &Map, key: &JsValue, value: &JsValue) -> Map;
 
@@ -1125,7 +1125,7 @@ extern {
     /// the Map object has. A set accessor function for size is undefined;
     /// you can not change this property.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/size
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/size)
     #[wasm_bindgen(method, getter, structural)]
     pub fn size(this: &Map) -> u32;
 }
@@ -1137,21 +1137,21 @@ extern {
     /// the [key, value] pairs for each element in the Map object in
     /// insertion order.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/entries
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/entries)
     #[wasm_bindgen(method)]
     pub fn entries(this: &Map) -> Iterator;
 
     /// The keys() method returns a new Iterator object that contains the
     /// keys for each element in the Map object in insertion order.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/keys
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/keys)
     #[wasm_bindgen(method)]
     pub fn keys(this: &Map) -> Iterator;
 
     /// The values() method returns a new Iterator object that contains the
     /// values for each element in the Map object in insertion order.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/values
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map/values)
     #[wasm_bindgen(method)]
     pub fn values(this: &Map) -> Iterator;
 }
@@ -1162,7 +1162,7 @@ extern {
     /// Any object that conforms to the JS iterator protocol. For example,
     /// something returned by `myArray[Symbol.iterator]()`.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols)
     #[derive(Clone, Debug)]
     pub type Iterator;
 
@@ -1179,7 +1179,7 @@ extern {
 extern {
     /// The result of calling `next()` on a JS iterator.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols)
     #[derive(Clone, Debug)]
     pub type IteratorNext;
 
@@ -1208,7 +1208,7 @@ extern "C" {
     /// The Math.abs() function returns the absolute value of a number, that is
     /// Math.abs(x) = |x|
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/abs
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/abs)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn abs(x: f64) -> f64;
 
@@ -1216,7 +1216,7 @@ extern "C" {
     /// number, that is ∀x∊[-1;1]
     /// Math.acos(x) = arccos(x) = the unique y∊[0;π] such that cos(y)=x
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/acos
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/acos)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn acos(x: f64) -> f64;
 
@@ -1224,7 +1224,7 @@ extern "C" {
     /// number, that is ∀x ≥ 1
     /// Math.acosh(x) = arcosh(x) = the unique y ≥ 0 such that cosh(y) = x
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/acosh
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/acosh)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn acosh(x: f64) -> f64;
 
@@ -1232,14 +1232,14 @@ extern "C" {
     /// number, that is ∀x ∊ [-1;1]
     /// Math.asin(x) = arcsin(x) = the unique y∊[-π2;π2] such that sin(y) = x
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/asin
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/asin)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn asin(x: f64) -> f64;
 
     /// The Math.asinh() function returns the hyperbolic arcsine of a
     /// number, that is Math.asinh(x) = arsinh(x) = the unique y such that sinh(y) = x
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/asinh
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/asinh)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn asinh(x: f64) -> f64;
 
@@ -1252,7 +1252,7 @@ extern "C" {
     /// The Math.atan2() function returns the arctangent of the quotient of
     /// its arguments.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/atan2
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/atan2)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn atan2(y: f64, x: f64) -> f64;
 
@@ -1260,35 +1260,35 @@ extern "C" {
     /// that is ∀x ∊ (-1,1), Math.atanh(x) = arctanh(x) = the unique y such that
     /// tanh(y) = x
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/atanh
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/atanh)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn atanh(x: f64) -> f64;
 
     /// The Math.cbrt() function returns the cube root of a number, that is
     /// Math.cbrt(x) = x^3 = the unique y such that y^3 = x
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/cbrt
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/cbrt)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn cbrt(x: f64) -> f64;
 
     /// The Math.ceil() function returns the smallest integer greater than
     /// or equal to a given number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/ceil
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/ceil)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn ceil(x: f64) -> f64;
 
     /// The Math.clz32() function returns the number of leading zero bits in
     /// the 32-bit binary representation of a number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn clz32(x: i32) -> u32;
 
     /// The Math.cos() static function returns the cosine of the specified angle,
     /// which must be specified in radians. This value is length(adjacent)/length(hypotenuse).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/cos
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/cos)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn cos(x: f64) -> f64;
 
@@ -1296,90 +1296,90 @@ extern "C" {
     /// The Math.cosh() function returns the hyperbolic cosine of a number,
     /// that can be expressed using the constant e.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/cosh
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/cosh)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn cosh(x: f64) -> f64;
 
     /// The Math.exp() function returns e^x, where x is the argument, and e is Euler's number
     /// (also known as Napier's constant), the base of the natural logarithms.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/exp
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/exp)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn exp(x: f64) -> f64;
 
     /// The Math.expm1() function returns e^x - 1, where x is the argument, and e the base of the
     /// natural logarithms.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/expm1
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/expm1)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn expm1(x: f64) -> f64;
 
     /// The Math.floor() function returns the largest integer less than or
     /// equal to a given number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/floor
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/floor)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn floor(x: f64) -> f64;
 
     /// The Math.fround() function returns the nearest 32-bit single precision float representation
     /// of a Number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn fround(x: f64) -> f32;
 
     /// The Math.hypot() function returns the square root of the sum of squares of its arguments.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/hypot
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/hypot)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn hypot(x: f64, y: f64) -> f64;
 
     /// The Math.imul() function returns the result of the C-like 32-bit multiplication of the
     /// two parameters.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn imul(x: i32, y: i32) -> i32;
 
     /// The Math.log() function returns the natural logarithm (base e) of a number.
     /// The JavaScript Math.log() function is equivalent to ln(x) in mathematics.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/log
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/log)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn log(x: f64) -> f64;
 
     /// The Math.log10() function returns the base 10 logarithm of a number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/log10
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/log10)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn log10(x: f64) -> f64;
 
     /// The Math.log1p() function returns the natural logarithm (base e) of 1 + a number.
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/log1p
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/log1p)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn log1p(x: f64) -> f64;
 
     /// The Math.log2() function returns the base 2 logarithm of a number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/log2
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/log2)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn log2(x: f64) -> f64;
 
     /// The Math.max() function returns the largest of two numbers.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/max
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/max)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn max(x: f64, y: f64) -> f64;
 
     /// The static function Math.min() returns the lowest-valued number passed into it.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/min
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/min)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn min(x: f64, y: f64) -> f64;
 
     /// The Math.pow() function returns the base to the exponent power, that is, base^exponent.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/pow
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/pow)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn pow(base: f64, exponent: f64) -> f64;
 
@@ -1389,60 +1389,60 @@ extern "C" {
     /// The implementation selects the initial seed to the random number generation algorithm;
     /// it cannot be chosen or reset by the user.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/random
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/random)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn random() -> f64;
 
     /// The Math.round() function returns the value of a number rounded to the nearest integer.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn round(x: f64) -> f64;
 
     /// The Math.sign() function returns the sign of a number, indicating whether the number is
     /// positive, negative or zero.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn sign(x: f64) -> f64;
 
     /// The Math.sin() function returns the sine of a number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sin
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sin)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn sin(x: f64) -> f64;
 
     /// The Math.sinh() function returns the hyperbolic sine of a number, that can be expressed
     /// using the constant e: Math.sinh(x) = (e^x - e^-x)/2
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sinh
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sinh)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn sinh(x: f64) -> f64;
 
     /// The Math.sqrt() function returns the square root of a number, that is
     /// ∀x ≥ 0, Math.sqrt(x) = √x = the unique y ≥ 0 such that y^2 = x
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sqrt
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sqrt)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn sqrt(x: f64) -> f64;
 
     /// The Math.tan() function returns the tangent of a number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/tan
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/tan)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn tan(x: f64) -> f64;
 
     /// The Math.tanh() function returns the hyperbolic tangent of a number, that is
     /// tanh x = sinh x / cosh x = (e^x - e^-x)/(e^x + e^-x) = (e^2x - 1)/(e^2x + 1)
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/tanh
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/tanh)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn tanh(x: f64) -> f64;
 
     /// The Math.trunc() function returns the integer part of a number by removing any fractional
     /// digits.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc)
     #[wasm_bindgen(static_method_of = Math)]
     pub fn trunc(x: f64) -> f64;
 }
@@ -1456,27 +1456,27 @@ extern "C" {
 
     /// The Number.isFinite() method determines whether the passed value is a finite number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isFinite
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isFinite)
     #[wasm_bindgen(static_method_of = Number, js_name = isFinite)]
     pub fn is_finite(value: &JsValue) -> bool;
 
     /// The Number.isInteger() method determines whether the passed value is an integer.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger)
     #[wasm_bindgen(static_method_of = Number, js_name = isInteger)]
     pub fn is_integer(value: &JsValue) -> bool;
 
     /// The Number.isNaN() method determines whether the passed value is NaN and its type is Number.
     /// It is a more robust version of the original, global isNaN().
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isNaN
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isNaN)
     #[wasm_bindgen(static_method_of = Number, js_name = isNaN)]
     pub fn is_nan(value: &JsValue) -> bool;
 
     /// The Number.isSafeInteger() method determines whether the provided value is a number
     /// that is a safe integer.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isSafeInteger
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isSafeInteger)
     #[wasm_bindgen(static_method_of = Number, js_name = isSafeInteger)]
     pub fn is_safe_integer(value: &JsValue) -> bool;
 
@@ -1484,63 +1484,63 @@ extern "C" {
     /// you to work with numerical values. A `Number` object is
     /// created using the `Number()` constructor.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number)
     #[wasm_bindgen(constructor)]
     pub fn new(value: &JsValue) -> Number;
 
     /// The Number.parseInt() method parses a string argument and returns an
     /// integer of the specified radix or base.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/parseInt
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/parseInt)
     #[wasm_bindgen(static_method_of = Number, js_name = parseInt)]
     pub fn parse_int(text: &str, radix: u8) -> f64;
 
     /// The Number.parseFloat() method parses a string argument and returns a
     /// floating point number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/parseFloat
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/parseFloat)
     #[wasm_bindgen(static_method_of = Number, js_name = parseFloat)]
     pub fn parse_float(text: &str) -> f64;
 
     /// The toLocaleString() method returns a string with a language sensitive
     /// representation of this number.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toLocaleString)
     #[wasm_bindgen(method, js_name = toLocaleString)]
     pub fn to_locale_string(this: &Number, locale: &str) -> JsString;
 
     /// The toPrecision() method returns a string representing the Number
     /// object to the specified precision.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toPrecision
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toPrecision)
     #[wasm_bindgen(catch, method, js_name = toPrecision)]
     pub fn to_precision(this: &Number, precision: u8) -> Result<JsString, JsValue>;
 
     /// The toFixed() method returns a string representing the Number
     /// object using fixed-point notation.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toFixed
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toFixed)
     #[wasm_bindgen(catch, method, js_name = toFixed)]
     pub fn to_fixed(this: &Number, digits: u8) -> Result<JsString, JsValue>;
 
     /// The toExponential() method returns a string representing the Number
     /// object in exponential notation.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toExponential
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toExponential)
     #[wasm_bindgen(catch, method, js_name = toExponential)]
     pub fn to_exponential(this: &Number, fraction_digits: u8) -> Result<JsString, JsValue>;
 
     /// The toString() method returns a string representing the
     /// specified Number object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toString)
     #[wasm_bindgen(catch, method, js_name = toString)]
     pub fn to_string(this: &Number, radix: u8) -> Result<JsString, JsValue>;
 
     /// The valueOf() method returns the wrapped primitive value of
     /// a Number object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/valueOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/valueOf)
     #[wasm_bindgen(method, js_name = valueOf)]
     pub fn value_of(this: &Number) -> f64;
 }
@@ -1555,117 +1555,117 @@ extern "C" {
     /// The getDate() method returns the day of the month for the
     /// specified date according to local time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getDate
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getDate)
     #[wasm_bindgen(method, js_name = getDate)]
     pub fn get_date(this: &Date) -> u32;
 
     /// The getDay() method returns the day of the week for the specified date according to local time,
     /// where 0 represents Sunday. For the day of the month see getDate().
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getDay
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getDay)
     #[wasm_bindgen(method, js_name = getDay)]
     pub fn get_day(this: &Date) -> u32;
 
     /// The getFullYear() method returns the year of the specified date according to local time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getFullYear
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getFullYear)
     #[wasm_bindgen(method, js_name = getFullYear)]
     pub fn get_full_year(this: &Date) -> u32;
 
     /// The getHours() method returns the hour for the specified date, according to local time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getHours
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getHours)
     #[wasm_bindgen(method, js_name = getHours)]
     pub fn get_hours(this: &Date) -> u32;
 
     /// The getMilliseconds() method returns the milliseconds in the specified date according to local time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMilliseconds
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMilliseconds)
     #[wasm_bindgen(method, js_name = getMilliseconds)]
     pub fn get_milliseconds(this: &Date) -> u32;
 
     /// The getMinutes() method returns the minutes in the specified date according to local time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMinutes
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMinutes)
     #[wasm_bindgen(method, js_name = getMinutes)]
     pub fn get_minutes(this: &Date) -> u32;
 
     /// The getMonth() method returns the month in the specified date according to local time,
     /// as a zero-based value (where zero indicates the first month of the year).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMonth
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMonth)
     #[wasm_bindgen(method, js_name = getMonth)]
     pub fn get_month(this: &Date) -> u32;
 
     /// The getSeconds() method returns the seconds in the specified date according to local time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getSeconds
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getSeconds)
     #[wasm_bindgen(method, js_name = getSeconds)]
     pub fn get_seconds(this: &Date) -> u32;
 
     /// The getTime() method returns the numeric value corresponding to the time for the specified date
     /// according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime)
     #[wasm_bindgen(method, js_name = getTime)]
     pub fn get_time(this: &Date) -> f64;
 
     /// The getTimezoneOffset() method returns the time zone difference, in minutes,
     /// from current locale (host system settings) to UTC.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset)
     #[wasm_bindgen(method, js_name = getTimezoneOffset)]
     pub fn get_timezone_offset(this: &Date) -> f64;
 
     /// The getUTCDate() method returns the day (date) of the month in the specified date
     /// according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDate
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDate)
     #[wasm_bindgen(method, js_name = getUTCDate)]
     pub fn get_utc_date(this: &Date) -> u32;
 
     /// The getUTCDay() method returns the day of the week in the specified date according to universal time,
     /// where 0 represents Sunday.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDay
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCDay)
     #[wasm_bindgen(method, js_name = getUTCDay)]
     pub fn get_utc_day(this: &Date) -> u32;
 
     /// The getUTCFullYear() method returns the year in the specified date according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCFullYear
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCFullYear)
     #[wasm_bindgen(method, js_name = getUTCFullYear)]
     pub fn get_utc_full_year(this: &Date) -> u32;
 
     /// The getUTCHours() method returns the hours in the specified date according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCHours
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCHours)
     #[wasm_bindgen(method, js_name = getUTCHours)]
     pub fn get_utc_hours(this: &Date) -> u32;
 
     /// The getUTCMilliseconds() method returns the milliseconds in the specified date
     /// according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMilliseconds
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMilliseconds)
     #[wasm_bindgen(method, js_name = getUTCMilliseconds)]
     pub fn get_utc_milliseconds(this: &Date) -> u32;
 
     /// The getUTCMinutes() method returns the minutes in the specified date according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMinutes
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMinutes)
     #[wasm_bindgen(method, js_name = getUTCMinutes)]
     pub fn get_utc_minutes(this: &Date) -> u32;
 
     /// The getUTCMonth() returns the month of the specified date according to universal time,
     /// as a zero-based value (where zero indicates the first month of the year).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMonth
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMonth)
     #[wasm_bindgen(method, js_name = getUTCMonth)]
     pub fn get_utc_month(this: &Date) -> u32;
 
     /// The getUTCSeconds() method returns the seconds in the specified date according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCSeconds
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCSeconds)
     #[wasm_bindgen(method, js_name = getUTCSeconds)]
     pub fn get_utc_seconds(this: &Date) -> u32;
 
@@ -1673,14 +1673,14 @@ extern "C" {
     /// a single moment in time. Date objects are based on a time value that is
     /// the number of milliseconds since 1 January 1970 UTC.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date)
     #[wasm_bindgen(constructor)]
     pub fn new(init: &JsValue) -> Date;
 
     /// The `Date.now()` method returns the number of milliseconds
     /// elapsed since January 1, 1970 00:00:00 UTC.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/now)
     #[wasm_bindgen(static_method_of = Date)]
     pub fn now() -> f64;
 
@@ -1688,20 +1688,20 @@ extern "C" {
     /// since January 1, 1970, 00:00:00 UTC or NaN if the string is unrecognized or, in some cases,
     /// contains illegal date values (e.g. 2015-02-31).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse)
     #[wasm_bindgen(static_method_of = Date)]
     pub fn parse(date: &str) -> f64;
 
     /// The setDate() method sets the day of the Date object relative to the beginning of the currently set month.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setDate
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setDate)
     #[wasm_bindgen(method, js_name = setDate)]
     pub fn set_date(this: &Date, day: u32) -> f64;
 
     /// The setFullYear() method sets the full year for a specified date according to local time.
     /// Returns new timestamp.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setFullYear
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setFullYear)
     #[wasm_bindgen(method, js_name = setFullYear)]
     pub fn set_full_year(this: &Date, year: u32) -> f64;
 
@@ -1709,51 +1709,51 @@ extern "C" {
     /// and returns the number of milliseconds since January 1, 1970 00:00:00 UTC until the time represented
     /// by the updated Date instance.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setHours
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setHours)
     #[wasm_bindgen(method, js_name = setHours)]
     pub fn set_hours(this: &Date, hours: u32) -> f64;
 
     /// The setMilliseconds() method sets the milliseconds for a specified date according to local time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMilliseconds
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMilliseconds)
     #[wasm_bindgen(method, js_name = setMilliseconds)]
     pub fn set_milliseconds(this: &Date, milliseconds: u32) -> f64;
 
     /// The setMinutes() method sets the minutes for a specified date according to local time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMinutes
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMinutes)
     #[wasm_bindgen(method, js_name = setMinutes)]
     pub fn set_minutes(this: &Date, minutes: u32) -> f64;
 
     /// The setMonth() method sets the month for a specified date according to the currently set year.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMonth
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setMonth)
     #[wasm_bindgen(method, js_name = setMonth)]
     pub fn set_month(this: &Date, month: u32) -> f64;
 
     /// The setSeconds() method sets the seconds for a specified date according to local time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setSeconds
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setSeconds)
     #[wasm_bindgen(method, js_name = setSeconds)]
     pub fn set_seconds(this: &Date, seconds: u32) -> f64;
 
     /// The setTime() method sets the Date object to the time represented by a number of milliseconds
     /// since January 1, 1970, 00:00:00 UTC.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setTime
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setTime)
     #[wasm_bindgen(method, js_name = setTime)]
     pub fn set_time(this: &Date, time: f64) -> f64;
 
     /// The setUTCDate() method sets the day of the month for a specified date
     /// according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCDate
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCDate)
     #[wasm_bindgen(method, js_name = setUTCDate)]
     pub fn set_utc_date(this: &Date, day: u32) -> f64;
 
     /// The setUTCFullYear() method sets the full year for a specified date according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCFullYear
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCFullYear)
     #[wasm_bindgen(method, js_name = setUTCFullYear)]
     pub fn set_utc_full_year(this: &Date, year: u32) -> f64;
 
@@ -1761,39 +1761,39 @@ extern "C" {
     /// and returns the number of milliseconds since  January 1, 1970 00:00:00 UTC until the time
     /// represented by the updated Date instance.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCHours
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCHours)
     #[wasm_bindgen(method, js_name = setUTCHours)]
     pub fn set_utc_hours(this: &Date, hours: u32) -> f64;
 
     /// The setUTCMilliseconds() method sets the milliseconds for a specified date
     /// according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMilliseconds
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMilliseconds)
     #[wasm_bindgen(method, js_name = setUTCMilliseconds)]
     pub fn set_utc_milliseconds(this: &Date, milliseconds: u32) -> f64;
 
     /// The setUTCMinutes() method sets the minutes for a specified date according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMinutes
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMinutes)
     #[wasm_bindgen(method, js_name = setUTCMinutes)]
     pub fn set_utc_minutes(this: &Date, minutes: u32) -> f64;
 
     /// The setUTCMonth() method sets the month for a specified date according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMonth
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCMonth)
     #[wasm_bindgen(method, js_name = setUTCMonth)]
     pub fn set_utc_month(this: &Date, month: u32) -> f64;
 
     /// The setUTCSeconds() method sets the seconds for a specified date according to universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCSeconds
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/setUTCSeconds)
     #[wasm_bindgen(method, js_name = setUTCSeconds)]
     pub fn set_utc_seconds(this: &Date, seconds: u32) -> f64;
 
     /// The toDateString() method returns the date portion of a Date object
     /// in human readable form in American English.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toDateString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toDateString)
     #[wasm_bindgen(method, js_name = toDateString)]
     pub fn to_date_string(this: &Date) -> JsString;
 
@@ -1802,13 +1802,13 @@ extern "C" {
     /// ±YYYYYY-MM-DDTHH:mm:ss.sssZ, respectively). The timezone is always zero UTC offset,
     /// as denoted by the suffix "Z"
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString)
     #[wasm_bindgen(method, js_name = toISOString)]
     pub fn to_iso_string(this: &Date) -> JsString;
 
     /// The toJSON() method returns a string representation of the Date object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toJSON
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toJSON)
     #[wasm_bindgen(method, js_name = toJSON)]
     pub fn to_json(this: &Date) -> JsString;
 
@@ -1820,7 +1820,7 @@ extern "C" {
     /// the locale used and the form of the string
     /// returned are entirely implementation dependent.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString)
     #[wasm_bindgen(method, js_name = toLocaleDateString)]
     pub fn to_locale_date_string(this: &Date, locale: &str, options: &JsValue) -> JsString;
 
@@ -1832,7 +1832,7 @@ extern "C" {
     /// and options arguments, the locale used and the form of the string
     /// returned are entirely implementation dependent.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleString)
     #[wasm_bindgen(method, js_name = toLocaleString)]
     pub fn to_locale_string(this: &Date, locale: &str, options: &JsValue) -> JsString;
 
@@ -1843,28 +1843,28 @@ extern "C" {
     /// the locales and options arguments, the locale used and the form of the string
     /// returned are entirely implementation dependent.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleTimeString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleTimeString)
     #[wasm_bindgen(method, js_name = toLocaleTimeString)]
     pub fn to_locale_time_string(this: &Date, locale: &str) -> JsString;
 
     /// The toString() method returns a string representing
     /// the specified Date object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toString)
     #[wasm_bindgen(method, js_name = toString)]
     pub fn to_string(this: &Date) -> JsString;
 
     /// The toTimeString() method returns the time portion of a Date object in human
     /// readable form in American English.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toTimeString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toTimeString)
     #[wasm_bindgen(method, js_name = toTimeString)]
     pub fn to_time_string(this: &Date) -> JsString;
 
     /// The toUTCString() method converts a date to a string,
     /// using the UTC time zone.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toUTCString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toUTCString)
     #[wasm_bindgen(method, js_name = toUTCString)]
     pub fn to_utc_string(this: &Date) -> JsString;
 
@@ -1873,14 +1873,14 @@ extern "C" {
     /// milliseconds in a `Date` object since January 1, 1970,
     /// 00:00:00, universal time.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/UTC
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/UTC)
     #[wasm_bindgen(static_method_of = Date, js_name = UTC)]
     pub fn utc(year: f64, month: f64) -> f64;
 
     /// The valueOf() method  returns the primitive value of
     /// a Date object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/valueOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/valueOf)
     #[wasm_bindgen(method, js_name = valueOf)]
     pub fn value_of(this: &Date) -> f64;
 }
@@ -1895,7 +1895,7 @@ extern "C" {
     /// own properties from one or more source objects to a target object. It
     /// will return the target object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
     #[wasm_bindgen(static_method_of = Object)]
     pub fn assign(target: &Object, source: &Object) -> Object;
 
@@ -1903,7 +1903,7 @@ extern "C" {
     /// own properties from one or more source objects to a target object. It
     /// will return the target object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
     #[wasm_bindgen(static_method_of = Object, js_name = assign)]
     pub fn assign2(target: &Object, source1: &Object, source2: &Object) -> Object;
 
@@ -1911,14 +1911,14 @@ extern "C" {
     /// own properties from one or more source objects to a target object. It
     /// will return the target object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign)
     #[wasm_bindgen(static_method_of = Object, js_name = assign)]
     pub fn assign3(target: &Object, source1: &Object, source2: &Object, source3: &Object) -> Object;
 
     /// The Object.create() method creates a new object, using an existing
     /// object to provide the newly created object's prototype.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/create
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/create)
     #[wasm_bindgen(static_method_of = Object)]
     pub fn create(prototype: &Object) -> Object;
 
@@ -1928,7 +1928,7 @@ extern "C" {
     /// configurability, or writability, from being changed, it also prevents
     /// the prototype from being changed. The method returns the passed object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze)
     #[wasm_bindgen(static_method_of = Object)]
     pub fn freeze(value: &Object) -> Object;
 
@@ -1936,52 +1936,52 @@ extern "C" {
     /// object has the specified property as its own property (as opposed to
     /// inheriting it).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty)
     #[wasm_bindgen(method, js_name = hasOwnProperty)]
     pub fn has_own_property(this: &Object, property: &JsValue) -> bool;
 
     /// The Object.is() method determines whether two values are the same value.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is)
     #[wasm_bindgen(static_method_of = Object)]
     pub fn is(value_1: &JsValue, value_2: &JsValue) -> bool;
 
     /// The `Object.isExtensible()` method determines if an object is extensible
     /// (whether it can have new properties added to it).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isExtensible
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isExtensible)
     #[wasm_bindgen(static_method_of = Object, js_name = isExtensible)]
     pub fn is_extensible(object: &Object) -> bool;
 
     /// The `Object.isFrozen()` determines if an object is frozen.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isFrozen
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isFrozen)
     #[wasm_bindgen(static_method_of = Object, js_name = isFrozen)]
     pub fn is_frozen(object: &Object) -> bool;
 
     /// The `Object.isSealed()` method determines if an object is sealed.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isSealed
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isSealed)
     #[wasm_bindgen(static_method_of = Object, js_name = isSealed)]
     pub fn is_sealed(object: &Object) -> bool;
 
     /// The `isPrototypeOf()` method checks if an object exists in another
     /// object's prototype chain.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isPrototypeOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/isPrototypeOf)
     #[wasm_bindgen(method, js_name = isPrototypeOf)]
     pub fn is_prototype_of(this: &Object, value: &JsValue) -> bool;
 
     /// The `Object.keys()` method returns an array of a given object's property
     /// names, in the same order as we get with a normal loop.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys)
     #[wasm_bindgen(static_method_of = Object)]
     pub fn keys(object: &Object) -> Array;
 
     /// The [`Object`] constructor creates an object wrapper.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)
     #[wasm_bindgen(constructor)]
     pub fn new() -> Object;
 
@@ -1989,14 +1989,14 @@ extern "C" {
     /// ever being added to an object (i.e. prevents future extensions to the
     /// object).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/preventExtensions
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/preventExtensions)
     #[wasm_bindgen(static_method_of = Object, js_name = preventExtensions)]
     pub fn prevent_extensions(object: &Object);
 
     /// The `propertyIsEnumerable()` method returns a Boolean indicating
     /// whether the specified property is enumerable.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/propertyIsEnumerable
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/propertyIsEnumerable)
     #[wasm_bindgen(method, js_name = propertyIsEnumerable)]
     pub fn property_is_enumerable(this: &Object, property: &JsValue) -> bool;
 
@@ -2005,7 +2005,7 @@ extern "C" {
     /// non-configurable.  Values of present properties can still be changed as
     /// long as they are writable.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/seal
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/seal)
     #[wasm_bindgen(static_method_of = Object)]
     pub fn seal(value: &Object) -> Object;
 
@@ -2013,7 +2013,7 @@ extern "C" {
     /// internal `[[Prototype]]` property) of a specified object to another
     /// object or `null`.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/setPrototypeOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/setPrototypeOf)
     #[wasm_bindgen(static_method_of = Object, js_name = setPrototypeOf)]
     pub fn set_prototype_of(object: &Object, prototype: &Object) -> Object;
 
@@ -2021,20 +2021,20 @@ extern "C" {
     /// This method is meant to be overridden by derived objects for
     /// locale-specific purposes.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toLocaleString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toLocaleString)
     #[wasm_bindgen(method, js_name = toLocaleString)]
     pub fn to_locale_string(this: &Object) -> JsString;
 
     /// The `toString()` method returns a string representing the object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString)
     #[wasm_bindgen(method, js_name = toString)]
     pub fn to_string(this: &Object) -> JsString;
 
     /// The `valueOf()` method returns the primitive value of the
     /// specified object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/valueOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/valueOf)
     #[wasm_bindgen(method, js_name = valueOf)]
     pub fn value_of(this: &Object) -> Object;
 
@@ -2043,7 +2043,7 @@ extern "C" {
     /// `for...in` loop (the difference being that a for-in loop enumerates
     /// properties in the prototype chain as well).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/values
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/values)
     #[wasm_bindgen(static_method_of = Object)]
     pub fn values(object: &Object) -> Array;
 }
@@ -2073,14 +2073,14 @@ extern {
     /// operations (e.g. property lookup, assignment, enumeration, function
     /// invocation, etc).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy)
     #[wasm_bindgen(constructor)]
     pub fn new(target: &JsValue, handler: &Object) -> Proxy;
 
     /// The `Proxy.revocable()` method is used to create a revocable [`Proxy`]
     /// object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy/revocable
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Proxy/revocable)
     #[wasm_bindgen(static_method_of = Proxy)]
     pub fn revocable(target: &JsValue, handler: &Object) -> Object;
 }
@@ -2091,15 +2091,15 @@ extern {
     /// The RangeError object indicates an error when a value is not in the set
     /// or range of allowed values.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RangeError
-    #[wasm_bindgen(extends = Error)]
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RangeError)
+    #[wasm_bindgen(extends = Error, extends = Object)]
     #[derive(Clone, Debug)]
     pub type RangeError;
 
     /// The RangeError object indicates an error when a value is not in the set
     /// or range of allowed values.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RangeError
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RangeError)
     #[wasm_bindgen(constructor)]
     pub fn new(message: &str) -> RangeError;
 }
@@ -2110,15 +2110,15 @@ extern {
     /// The ReferenceError object represents an error when a non-existent
     /// variable is referenced.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError
-    #[wasm_bindgen(extends = Error)]
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError)
+    #[wasm_bindgen(extends = Error, extends = Object)]
     #[derive(Clone, Debug)]
     pub type ReferenceError;
 
     /// The ReferenceError object represents an error when a non-existent
     /// variable is referenced.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ReferenceError)
     #[wasm_bindgen(constructor)]
     pub fn new(message: &str) -> ReferenceError;
 }
@@ -2132,7 +2132,7 @@ extern "C" {
     /// The static `Reflect.apply()` method calls a target function with
     /// arguments as specified.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/apply
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/apply)
     #[wasm_bindgen(static_method_of = Reflect, catch)]
     pub fn apply(target: &Function, this_argument: &JsValue, arguments_list: &Array)
         -> Result<JsValue, JsValue>;
@@ -2141,7 +2141,7 @@ extern "C" {
     /// as a function.  It is equivalent to calling `new target(...args)`. It
     /// gives also the added option to specify a different prototype.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/construct
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/construct)
     #[wasm_bindgen(static_method_of = Reflect)]
     pub fn construct(target: &Function, arguments_list: &Array) -> JsValue;
     #[wasm_bindgen(static_method_of = Reflect, js_name = construct)]
@@ -2150,21 +2150,21 @@ extern "C" {
     /// The static `Reflect.defineProperty()` method is like
     /// `Object.defineProperty()` but returns a `Boolean`.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/defineProperty
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/defineProperty)
     #[wasm_bindgen(static_method_of = Reflect, js_name = defineProperty)]
     pub fn define_property(target: &Object, property_key: &JsValue, attributes: &Object) -> bool;
 
     /// The static `Reflect.deleteProperty()` method allows to delete
     /// properties.  It is like the `delete` operator as a function.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/deleteProperty
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/deleteProperty)
     #[wasm_bindgen(static_method_of = Reflect, js_name = deleteProperty)]
     pub fn delete_property(target: &Object, key: &JsValue) -> bool;
 
     /// The static `Reflect.get()` method works like getting a property from
     /// an object (`target[propertyKey]`) as a function.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/get
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/get)
     #[wasm_bindgen(static_method_of = Reflect)]
     pub fn get(target: &JsValue, key: &JsValue) -> JsValue;
 
@@ -2172,7 +2172,7 @@ extern "C" {
     /// `Object.getOwnPropertyDescriptor()`. It returns a property descriptor
     /// of the given property if it exists on the object, `undefined` otherwise.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/getOwnPropertyDescriptor
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/getOwnPropertyDescriptor)
     #[wasm_bindgen(static_method_of = Reflect, js_name = getOwnPropertyDescriptor)]
     pub fn get_own_property_descriptor(target: &Object, property_key: &JsValue) -> JsValue;
 
@@ -2181,14 +2181,14 @@ extern "C" {
     /// (i.e. the value of the internal `[[Prototype]]` property) of
     /// the specified object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/getPrototypeOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/getPrototypeOf)
     #[wasm_bindgen(static_method_of = Reflect, js_name = getPrototypeOf)]
     pub fn get_prototype_of(target: &JsValue) -> Object;
 
     /// The static `Reflect.has()` method works like the in operator as a
     /// function.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/has
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/has)
     #[wasm_bindgen(static_method_of = Reflect)]
     pub fn has(target: &JsValue, property_key: &JsValue) -> bool;
 
@@ -2196,14 +2196,14 @@ extern "C" {
     /// extensible (whether it can have new properties added to it). It is
     /// similar to `Object.isExtensible()`, but with some differences.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/isExtensible
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/isExtensible)
     #[wasm_bindgen(static_method_of = Reflect, js_name = isExtensible)]
     pub fn is_extensible(target: &Object) -> bool;
 
     /// The static `Reflect.ownKeys()` method returns an array of the
     /// target object's own property keys.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/ownKeys
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/ownKeys)
     #[wasm_bindgen(static_method_of = Reflect, js_name = ownKeys)]
     pub fn own_keys(target: &JsValue) -> Array;
 
@@ -2212,14 +2212,14 @@ extern "C" {
     /// future extensions to the object). It is similar to
     /// `Object.preventExtensions()`, but with some differences.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/preventExtensions
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/preventExtensions)
     #[wasm_bindgen(static_method_of = Reflect, js_name = preventExtensions)]
     pub fn prevent_extensions(target: &Object) -> bool;
 
     /// The static `Reflect.set()` method works like setting a
     /// property on an object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/set
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/set)
     #[wasm_bindgen(static_method_of = Reflect)]
     pub fn set(target: &JsValue, property_key: &JsValue, value: &JsValue) -> bool;
     #[wasm_bindgen(static_method_of = Reflect, js_name = set)]
@@ -2230,7 +2230,7 @@ extern "C" {
     /// (i.e., the internal `[[Prototype]]` property) of a specified
     /// object to another object or to null.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/setPrototypeOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Reflect/setPrototypeOf)
     #[wasm_bindgen(static_method_of = Reflect, js_name = setPrototypeOf)]
     pub fn set_prototype_of(target: &Object, prototype: &JsValue) -> bool;
 }
@@ -2245,14 +2245,14 @@ extern {
     /// The exec() method executes a search for a match in a specified
     /// string. Returns a result array, or null.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/exec)
     #[wasm_bindgen(method)]
     pub fn exec(this: &RegExp, text: &str) -> Option<Array>;
 
     /// The flags property returns a string consisting of the flags of
     /// the current regular expression object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/flags
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/flags)
     #[wasm_bindgen(method, getter)]
     pub fn flags(this: &RegExp) -> JsString;
 
@@ -2260,7 +2260,7 @@ extern {
     /// used with the regular expression. global is a read-only
     /// property of an individual regular expression instance.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/global
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/global)
     #[wasm_bindgen(method, getter)]
     pub fn global(this: &RegExp) -> bool;
 
@@ -2268,7 +2268,7 @@ extern {
     /// is used with the regular expression. ignoreCase is a read-only
     /// property of an individual regular expression instance.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/ignoreCase
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/ignoreCase)
     #[wasm_bindgen(method, getter, js_name = ignoreCase)]
     pub fn ignore_case(this: &RegExp) -> bool;
 
@@ -2277,21 +2277,21 @@ extern {
     /// regular expression is matched. RegExp.$_ is an alias for this
     /// property.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/input
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/input)
     #[wasm_bindgen(static_method_of = RegExp, getter)]
     pub fn input() -> JsString;
 
     /// The lastIndex is a read/write integer property of regular expression
     /// instances that specifies the index at which to start the next match.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
     #[wasm_bindgen(structural, getter = lastIndex, method)]
     pub fn last_index(this: &RegExp) -> u32;
 
     /// The lastIndex is a read/write integer property of regular expression
     /// instances that specifies the index at which to start the next match.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
     #[wasm_bindgen(structural, setter = lastIndex, method)]
     pub fn set_last_index(this: &RegExp, index: u32);
 
@@ -2299,7 +2299,7 @@ extern {
     /// property of regular expressions that contains the last matched
     /// characters. RegExp.$& is an alias for this property.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastMatch)
     #[wasm_bindgen(static_method_of = RegExp, getter, js_name = lastMatch)]
     pub fn last_match() -> JsString;
 
@@ -2308,7 +2308,7 @@ extern {
     /// parenthesized substring match, if any. RegExp.$+ is an alias
     /// for this property.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastParen
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastParen)
     #[wasm_bindgen(static_method_of = RegExp, getter, js_name = lastParen)]
     pub fn last_paren() -> JsString;
 
@@ -2317,7 +2317,7 @@ extern {
     /// substring preceding the most recent match. RegExp.$` is an
     /// alias for this property.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/leftContext
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/leftContext)
     #[wasm_bindgen(static_method_of = RegExp, getter, js_name = leftContext)]
     pub fn left_context() -> JsString;
 
@@ -2325,7 +2325,7 @@ extern {
     /// is used with the regular expression. multiline is a read-only
     /// property of an individual regular expression instance.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/multiline
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/multiline)
     #[wasm_bindgen(method, getter)]
     pub fn multiline(this: &RegExp) -> bool;
 
@@ -2333,7 +2333,7 @@ extern {
     /// are static and read-only properties of regular expressions
     /// that contain parenthesized substring matches.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/n
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/n)
     #[wasm_bindgen(static_method_of = RegExp, getter, js_name = "$1")]
     pub fn n1() -> JsString;
     #[wasm_bindgen(static_method_of = RegExp, getter, js_name = "$2")]
@@ -2355,7 +2355,7 @@ extern {
 
     /// The RegExp constructor creates a regular expression object for matching text with a pattern.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp)
     #[wasm_bindgen(constructor)]
     pub fn new(pattern: &str, flags: &str) -> RegExp;
     #[wasm_bindgen(constructor)]
@@ -2366,7 +2366,7 @@ extern {
     /// substring following the most recent match. RegExp.$' is an
     /// alias for this property.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/rightContext
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/rightContext)
     #[wasm_bindgen(static_method_of = RegExp, getter, js_name = rightContext)]
     pub fn right_context() -> JsString;
 
@@ -2374,7 +2374,7 @@ extern {
     /// text of the regexp object, and it doesn't contain the two
     /// forward slashes on both sides and any flags.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/source
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/source)
     #[wasm_bindgen(method, getter)]
     pub fn source(this: &RegExp) -> JsString;
 
@@ -2384,7 +2384,7 @@ extern {
     /// a read-only property of an individual regular expression
     /// object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/sticky
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/sticky)
     #[wasm_bindgen(method, getter)]
     pub fn sticky(this: &RegExp) -> bool;
 
@@ -2392,14 +2392,14 @@ extern {
     /// regular expression and a specified string. Returns true or
     /// false.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/test
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/test)
     #[wasm_bindgen(method)]
     pub fn test(this: &RegExp, text: &str) -> bool;
 
     /// The toString() method returns a string representing the
     /// regular expression.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/toString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/toString)
     #[wasm_bindgen(method, js_name = toString)]
     pub fn to_string(this: &RegExp) -> JsString;
 
@@ -2407,7 +2407,7 @@ extern {
     /// used with a regular expression. unicode is a read-only
     /// property of an individual regular expression instance.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/unicode
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/unicode)
     #[wasm_bindgen(method, getter)]
     pub fn unicode(this: &RegExp) -> bool;
 }
@@ -2422,48 +2422,48 @@ extern {
     /// The `add()` method appends a new element with a specified value to the
     /// end of a [`Set`] object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/add
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/add)
     #[wasm_bindgen(method)]
     pub fn add(this: &Set, value: &JsValue) -> Set;
 
     /// The `clear()` method removes all elements from a [`Set`] object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/clear
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/clear)
     #[wasm_bindgen(method)]
     pub fn clear(this: &Set);
 
     /// The `delete()` method removes the specified element from a [`Set`]
     /// object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/delete
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/delete)
     #[wasm_bindgen(method)]
     pub fn delete(this: &Set, value: &JsValue) -> bool;
 
     /// The forEach() method executes a provided function once for each value
     /// in the Set object, in insertion order.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/forEach
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/forEach)
     #[wasm_bindgen(method, js_name = forEach)]
     pub fn for_each(this: &Set, callback: &mut FnMut(JsValue, JsValue, Set));
 
     /// The `has()` method returns a boolean indicating whether an element with
     /// the specified value exists in a [`Set`] object or not.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/has
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/has)
     #[wasm_bindgen(method)]
     pub fn has(this: &Set, value: &JsValue) -> bool;
 
     /// The [`Set`] object lets you store unique values of any type, whether
     /// primitive values or object references.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set)
     #[wasm_bindgen(constructor)]
     pub fn new(init: &JsValue) -> Set;
 
     /// The size accessor property returns the number of elements in a [`Set`]
     /// object.
     ///
-    /// https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/Set/size
+    /// [MDN documentation](https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/Set/size)
     #[wasm_bindgen(method, getter, structural)]
     pub fn size(this: &Set) -> u32;
 }
@@ -2477,7 +2477,7 @@ extern {
     /// keep the API similar to the Map object, each entry has the same value
     /// for its key and value here, so that an array [value, value] is returned.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/entries
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/entries)
     #[wasm_bindgen(method)]
     pub fn entries(set: &Set) -> Iterator;
 
@@ -2485,14 +2485,14 @@ extern {
     /// Map objects); it behaves exactly the same and returns values
     /// of Set elements.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/values
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/values)
     #[wasm_bindgen(method)]
     pub fn keys(set: &Set) -> Iterator;
 
     /// The `values()` method returns a new Iterator object that contains the
     /// values for each element in the Set object in insertion order.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/values
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set/values)
     #[wasm_bindgen(method)]
     pub fn values(set: &Set) -> Iterator;
 }
@@ -2504,8 +2504,8 @@ extern {
     /// token order that does not conform to the syntax of the language when
     /// parsing code.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError
-    #[wasm_bindgen(extends = Error)]
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError)
+    #[wasm_bindgen(extends = Error, extends = Object)]
     #[derive(Clone, Debug)]
     pub type SyntaxError;
 
@@ -2513,7 +2513,7 @@ extern {
     /// token order that does not conform to the syntax of the language when
     /// parsing code.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SyntaxError)
     #[wasm_bindgen(constructor)]
     pub fn new(message: &str) -> SyntaxError;
 }
@@ -2524,15 +2524,15 @@ extern {
     /// The TypeError object represents an error when a value is not of the
     /// expected type.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError
-    #[wasm_bindgen(extends = Error)]
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError)
+    #[wasm_bindgen(extends = Error, extends = Object)]
     #[derive(Clone, Debug)]
     pub type TypeError;
 
     /// The TypeError object represents an error when a value is not of the
     /// expected type.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypeError)
     #[wasm_bindgen(constructor)]
     pub fn new(message: &str) -> TypeError;
 }
@@ -2546,14 +2546,14 @@ extern "C" {
 
     /// The `Uint8Array()` constructor creates an array of unsigned 8-bit integers.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array)
     #[wasm_bindgen(constructor)]
     pub fn new(constructor_arg: &JsValue) -> Uint8Array;
 
     /// The fill() method fills all the elements of an array from a start index
     /// to an end index with a static value. The end index is not included.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill)
     #[wasm_bindgen(method)]
     pub fn fill(this: &Uint8Array, value: u8, start: u32, end: u32) -> Uint8Array;
 
@@ -2601,14 +2601,14 @@ extern "C" {
     /// to 0-255; if you specified a value that is out of the range of [0,255], 0 or 255 will be
     /// set instead.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8ClampedArray
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8ClampedArray)
     #[wasm_bindgen(constructor)]
     pub fn new(constructor_arg: &JsValue) -> Uint8ClampedArray;
 
     /// The fill() method fills all the elements of an array from a start index
     /// to an end index with a static value. The end index is not included.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill)
     #[wasm_bindgen(method)]
     pub fn fill(this: &Uint8ClampedArray, value: u8, start: u32, end: u32) -> Uint8ClampedArray;
 
@@ -2654,14 +2654,14 @@ extern "C" {
 
     /// The `Uint16Array()` constructor creates an array of unsigned 16-bit integers.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint16Array
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint16Array)
     #[wasm_bindgen(constructor)]
     pub fn new(constructor_arg: &JsValue) -> Uint16Array;
 
     /// The fill() method fills all the elements of an array from a start index
     /// to an end index with a static value. The end index is not included.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill)
     #[wasm_bindgen(method)]
     pub fn fill(this: &Uint16Array, value: u16, start: u32, end: u32) -> Uint16Array;
 
@@ -2707,14 +2707,14 @@ extern "C" {
 
     /// The `Uint32Array()` constructor creates an array of unsigned 32-bit integers.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint32Array
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint32Array)
     #[wasm_bindgen(constructor)]
     pub fn new(constructor_arg: &JsValue) -> Uint32Array;
 
     /// The fill() method fills all the elements of an array from a start index
     /// to an end index with a static value. The end index is not included.
     ///
-    /// http://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray/fill)
     #[wasm_bindgen(method)]
     pub fn fill(this: &Uint32Array, value: u32, start: u32, end: u32) -> Uint32Array;
 
@@ -2757,15 +2757,15 @@ extern {
     /// The URIError object represents an error when a global URI handling
     /// function was used in a wrong way.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/URIError
-    #[wasm_bindgen(extends = Error, js_name = URIError)]
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/URIError)
+    #[wasm_bindgen(extends = Error, extends = Object, js_name = URIError)]
     #[derive(Clone, Debug)]
     pub type UriError;
 
     /// The URIError object represents an error when a global URI handling
     /// function was used in a wrong way.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/URIError
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/URIError)
     #[wasm_bindgen(constructor, js_class = "URIError")]
     pub fn new(message: &str) -> UriError;
 }
@@ -2781,35 +2781,35 @@ extern "C" {
     /// keys are weakly referenced.  The keys must be objects and the values can
     /// be arbitrary values.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap)
     #[wasm_bindgen(constructor)]
     pub fn new() -> WeakMap;
 
     /// The `set()` method sets the value for the key in the [`WeakMap`] object.
     /// Returns the [`WeakMap`] object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/set
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/set)
     #[wasm_bindgen(method, js_class = "WeakMap")]
     pub fn set(this: &WeakMap, key: &Object, value: &JsValue) -> WeakMap;
 
     /// The get() method returns a specified by key element
     /// from a [`WeakMap`] object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/get
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/get)
     #[wasm_bindgen(method)]
     pub fn get(this: &WeakMap, key: &Object) -> JsValue;
 
     /// The `has()` method returns a boolean indicating whether an element with
     /// the specified key exists in the [`WeakMap`] object or not.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/has
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/has)
     #[wasm_bindgen(method)]
     pub fn has(this: &WeakMap, key: &Object) -> bool;
 
     /// The `delete()` method removes the specified element from a [`WeakMap`]
     /// object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/delete
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap/delete)
     #[wasm_bindgen(method)]
     pub fn delete(this: &WeakMap, key: &Object) -> bool;
 }
@@ -2823,44 +2823,226 @@ extern "C" {
 
     /// The `WeakSet` object lets you store weakly held objects in a collection.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet)
     #[wasm_bindgen(constructor)]
     pub fn new() -> WeakSet;
 
     /// The `has()` method returns a boolean indicating whether an object exists
     /// in a WeakSet or not.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/has
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/has)
     #[wasm_bindgen(method)]
     pub fn has(this: &WeakSet, value: &Object) -> bool;
 
     /// The `add()` method appends a new object to the end of a WeakSet object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/add
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/add)
     #[wasm_bindgen(method)]
     pub fn add(this: &WeakSet, value: &Object) -> WeakSet;
 
     /// The `delete()` method removes the specified element from a WeakSet
     /// object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/delete
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet/delete)
     #[wasm_bindgen(method)]
     pub fn delete(this: &WeakSet, value: &Object) -> bool;
 }
 
-// WebAssembly
-#[wasm_bindgen]
-extern "C" {
-    #[derive(Clone, Debug)]
-    pub type WebAssembly;
+#[allow(non_snake_case)]
+pub mod WebAssembly {
+    use super::*;
 
-    /// The `WebAssembly.validate()` function validates a given typed
-    /// array of WebAssembly binary code, returning whether the bytes
-    /// form a valid wasm module (`true`) or not (`false`).
-    ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/validate
-    #[wasm_bindgen(static_method_of = WebAssembly, catch)]
-    pub fn validate(bufferSource: &JsValue) -> Result<bool, JsValue>;
+    // WebAssembly
+    #[wasm_bindgen]
+    extern "C" {
+        /// `The WebAssembly.compile()` function compiles a `WebAssembly.Module`
+        /// from WebAssembly binary code.  This function is useful if it is
+        /// necessary to a compile a module before it can be instantiated
+        /// (otherwise, the `WebAssembly.instantiate()` function should be used).
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/compile)
+        #[wasm_bindgen(js_namespace = WebAssembly)]
+        pub fn compile(buffer_source: &JsValue) -> Promise;
+
+        /// The `WebAssembly.validate()` function validates a given typed
+        /// array of WebAssembly binary code, returning whether the bytes
+        /// form a valid wasm module (`true`) or not (`false`).
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/validate)
+        #[wasm_bindgen(js_namespace = WebAssembly, catch)]
+        pub fn validate(buffer_source: &JsValue) -> Result<bool, JsValue>;
+    }
+
+    // WebAssembly.CompileError
+    #[wasm_bindgen]
+    extern "C" {
+        /// The `WebAssembly.CompileError()` constructor creates a new
+        /// WebAssembly `CompileError` object, which indicates an error during
+        /// WebAssembly decoding or validation.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/CompileError)
+        #[wasm_bindgen(extends = Error, js_namespace = WebAssembly)]
+        #[derive(Clone, Debug)]
+        pub type CompileError;
+
+        /// The `WebAssembly.CompileError()` constructor creates a new
+        /// WebAssembly `CompileError` object, which indicates an error during
+        /// WebAssembly decoding or validation.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/CompileError)
+        #[wasm_bindgen(constructor, js_namespace = WebAssembly)]
+        pub fn new(message: &str) -> CompileError;
+    }
+
+    // WebAssembly.LinkError
+    #[wasm_bindgen]
+    extern "C" {
+        /// The `WebAssembly.LinkError()` constructor creates a new WebAssembly
+        /// LinkError object, which indicates an error during module
+        /// instantiation (besides traps from the start function).
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/LinkError)
+        #[wasm_bindgen(extends = Error, js_namespace = WebAssembly)]
+        #[derive(Clone, Debug)]
+        pub type LinkError;
+
+        /// The `WebAssembly.LinkError()` constructor creates a new WebAssembly
+        /// LinkError object, which indicates an error during module
+        /// instantiation (besides traps from the start function).
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/LinkError)
+        #[wasm_bindgen(constructor, js_namespace = WebAssembly)]
+        pub fn new(message: &str) -> LinkError;
+    }
+
+    // WebAssembly.RuntimeError
+    #[wasm_bindgen]
+    extern "C" {
+        /// The `WebAssembly.RuntimeError()` constructor creates a new WebAssembly
+        /// `RuntimeError` object — the type that is thrown whenever WebAssembly
+        /// specifies a trap.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/RuntimeError)
+        #[wasm_bindgen(extends = Error, js_namespace = WebAssembly)]
+        #[derive(Clone, Debug)]
+        pub type RuntimeError;
+
+        /// The `WebAssembly.RuntimeError()` constructor creates a new WebAssembly
+        /// `RuntimeError` object — the type that is thrown whenever WebAssembly
+        /// specifies a trap.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/RuntimeError)
+        #[wasm_bindgen(constructor, js_namespace = WebAssembly)]
+        pub fn new(message: &str) -> RuntimeError;
+    }
+
+    // WebAssembly.Module
+    #[wasm_bindgen]
+    extern "C" {
+        /// A `WebAssembly.Module` object contains stateless WebAssembly code
+        /// that has already been compiled by the browser and can be
+        /// efficiently shared with Workers, and instantiated multiple times.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Module)
+        #[wasm_bindgen(js_namespace = WebAssembly, extends = Object)]
+        #[derive(Clone, Debug)]
+        pub type Module;
+
+        /// A `WebAssembly.Module` object contains stateless WebAssembly code
+        /// that has already been compiled by the browser and can be
+        /// efficiently shared with Workers, and instantiated multiple times.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Module)
+        #[wasm_bindgen(constructor, js_namespace = WebAssembly, catch)]
+        pub fn new(buffer_source: &JsValue) -> Result<Module, JsValue>;
+
+        /// The `WebAssembly.customSections()` function returns a copy of the
+        /// contents of all custom sections in the given module with the given
+        /// string name.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Module/customSections)
+        #[wasm_bindgen(static_method_of = Module, js_namespace = WebAssembly, js_name = customSections)]
+        pub fn custom_sections(module: &Module, sectionName: &str) -> Array;
+
+        /// The `WebAssembly.exports()` function returns an array containing
+        /// descriptions of all the declared exports of the given `Module`.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Module/exports)
+        #[wasm_bindgen(static_method_of = Module, js_namespace = WebAssembly)]
+        pub fn exports(module: &Module) -> Array;
+
+        /// The `WebAssembly.imports()` function returns an array containing
+        /// descriptions of all the declared imports of the given `Module`.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Module/imports)
+        #[wasm_bindgen(static_method_of = Module, js_namespace = WebAssembly)]
+        pub fn imports(module: &Module) -> Array;
+    }
+
+    // WebAssembly.Table
+    #[wasm_bindgen]
+    extern "C" {
+        /// The `WebAssembly.Table()` constructor creates a new `Table` object
+        /// of the given size and element type.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Table)
+        #[wasm_bindgen(js_namespace = WebAssembly, extends = Object)]
+        #[derive(Clone, Debug)]
+        pub type Table;
+
+        /// The `WebAssembly.Table()` constructor creates a new `Table` object
+        /// of the given size and element type.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Table)
+        #[wasm_bindgen(constructor, js_namespace = WebAssembly, catch)]
+        pub fn new(table_descriptor: &Object) -> Result<Table, JsValue>;
+
+        /// The `length` prototype property of the `WebAssembly.Table` object
+        /// returns the length of the table, i.e. the number of elements in the
+        /// table.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Table/length)
+        #[wasm_bindgen(method, getter, js_namespace = WebAssembly)]
+        pub fn length(this: &Table) -> u32;
+    }
+
+    // WebAssembly.Memory
+    #[wasm_bindgen]
+    extern "C" {
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Memory)
+        #[wasm_bindgen(js_namespace = WebAssembly, extends = Object)]
+        #[derive(Clone, Debug)]
+        pub type Memory;
+
+        /// The `WebAssembly.Memory()` constructor creates a new `Memory` object
+        /// which is a resizable `ArrayBuffer` that holds the raw bytes of
+        /// memory accessed by a WebAssembly `Instance`.
+        ///
+        /// A memory created by JavaScript or in WebAssembly code will be
+        /// accessible and mutable from both JavaScript and WebAssembly.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Memory)
+        #[wasm_bindgen(constructor, js_namespace = WebAssembly, catch)]
+        pub fn new(descriptor: &Object) -> Result<Memory, JsValue>;
+
+        /// An accessor property that returns the buffer contained in the
+        /// memory.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Memory/buffer)
+        #[wasm_bindgen(method, getter, js_namespace = WebAssembly)]
+        pub fn buffer(this: &Memory) -> JsValue;
+
+        /// The `grow()` protoype method of the `Memory` object increases the
+        /// size of the memory instance by a specified number of WebAssembly
+        /// pages.
+        ///
+        /// Takes the number of pages to grow (64KiB in size) and returns the
+        /// previous size of memory, in pages.
+        ///
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WebAssembly/Memory/grow)
+        #[wasm_bindgen(method, js_namespace = WebAssembly)]
+        pub fn grow(this: &Memory, pages: u32) -> u32;
+    }
 }
 
 // JSON
@@ -2873,7 +3055,7 @@ extern "C" {
     /// The `JSON.parse()` method parses a JSON string, constructing the
     /// JavaScript value or object described by the string.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse)
     #[wasm_bindgen(catch, static_method_of = JSON)]
     pub fn parse(text: &str) -> Result<JsValue, JsValue>;
 
@@ -2882,7 +3064,7 @@ extern "C" {
     /// optionally including only the specified properties if a replacer array is
     /// specified.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify)
     #[wasm_bindgen(catch, static_method_of = JSON)]
     pub fn stringify(obj: &JsValue) -> Result<JsString, JsValue>;
 
@@ -2898,7 +3080,7 @@ extern "C" {
     /// The length property of a String object indicates the length of a string,
     /// in UTF-16 code units.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/length
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/length)
     #[wasm_bindgen(method, getter, structural)]
     pub fn length(this: &JsString) -> u32;
 
@@ -2906,7 +3088,7 @@ extern "C" {
     /// the single UTF-16 code unit located at the specified offset into the
     /// string.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charAt
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charAt)
     #[wasm_bindgen(method, js_class = "String", js_name = charAt)]
     pub fn char_at(this: &JsString, index: u32) -> JsString;
 
@@ -2920,35 +3102,35 @@ extern "C" {
     ///
     /// Returns `NaN` if index is out of range.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charCodeAt
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charCodeAt)
     #[wasm_bindgen(method, js_class = "String", js_name = charCodeAt)]
     pub fn char_code_at(this: &JsString, index: u32) -> f64;
 
     /// The `codePointAt()` method returns a non-negative integer that is the
     /// Unicode code point value.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/codePointAt
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/codePointAt)
     #[wasm_bindgen(method, js_class = "String", js_name = codePointAt)]
     pub fn code_point_at(this: &JsString, pos: u32) -> JsValue;
 
     /// The `concat()` method concatenates the string arguments to the calling
     /// string and returns a new string.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/concat
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/concat)
     #[wasm_bindgen(method, js_class = "String")]
     pub fn concat(this: &JsString, string_2: &JsValue) -> JsString;
 
     /// The endsWith() method determines whether a string ends with the characters of a
     /// specified string, returning true or false as appropriate.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith)
     #[wasm_bindgen(method, js_class = "String", js_name = endsWith)]
     pub fn ends_with(this: &JsString, search_string: &str, length: i32) -> bool;
 
     /// The static String.fromCharCode() method returns a string created from
     /// the specified sequence of UTF-16 code units.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode)
     ///
     /// # Notes
     ///
@@ -2957,26 +3139,58 @@ extern "C" {
     #[wasm_bindgen(static_method_of = JsString, js_class = "String", js_name = fromCharCode)]
     pub fn from_char_code1(a: u32) -> JsString;
 
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode)
     #[wasm_bindgen(static_method_of = JsString, js_class = "String", js_name = fromCharCode)]
     pub fn from_char_code2(a: u32, b: u32) -> JsString;
 
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode)
     #[wasm_bindgen(static_method_of = JsString, js_class = "String", js_name = fromCharCode)]
     pub fn from_char_code3(a: u32, b: u32, c: u32) -> JsString;
 
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode)
     #[wasm_bindgen(static_method_of = JsString, js_class = "String", js_name = fromCharCode)]
     pub fn from_char_code4(a: u32, b: u32, c: u32, d: u32) -> JsString;
 
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCharCode)
     #[wasm_bindgen(static_method_of = JsString, js_class = "String", js_name = fromCharCode)]
     pub fn from_char_code5(a: u32, b: u32, c: u32, d: u32, e: u32) -> JsString;
 
+    /// The static String.fromCodePoint() method returns a string created by
+    /// using the specified sequence of code points.
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCodePoint)
+    ///
+    /// # Exceptions
+    ///
+    /// A RangeError is thrown if an invalid Unicode code point is given
+    ///
+    /// # Notes
+    ///
+    /// There are a few bindings to `from_code_point` in `js-sys`: `from_code_point1`, `from_code_point2`, etc...
+    /// with different arities.
+    #[wasm_bindgen(catch, static_method_of = JsString, js_class = "String", js_name = fromCodePoint)]
+    pub fn from_code_point1(a: u32) -> Result<JsString, JsValue>;
+
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCodePoint)
+    #[wasm_bindgen(catch, static_method_of = JsString, js_class = "String", js_name = fromCodePoint)]
+    pub fn from_code_point2(a: u32, b: u32) -> Result<JsString, JsValue>;
+
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCodePoint)
+    #[wasm_bindgen(catch, static_method_of = JsString, js_class = "String", js_name = fromCodePoint)]
+    pub fn from_code_point3(a: u32, b: u32, c: u32) -> Result<JsString, JsValue>;
+
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCodePoint)
+    #[wasm_bindgen(catch, static_method_of = JsString, js_class = "String", js_name = fromCodePoint)]
+    pub fn from_code_point4(a: u32, b: u32, c: u32, d: u32) -> Result<JsString, JsValue>;
+
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCodePoint)
+    #[wasm_bindgen(catch, static_method_of = JsString, js_class = "String", js_name = fromCodePoint)]
+    pub fn from_code_point5(a: u32, b: u32, c: u32, d: u32, e: u32) -> Result<JsString, JsValue>;
+
     /// The `includes()` method determines whether one string may be found
     /// within another string, returning true or false as appropriate.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes)
     #[wasm_bindgen(method, js_class = "String")]
     pub fn includes(this: &JsString, search_string: &str, position: i32) -> bool;
 
@@ -2984,7 +3198,7 @@ extern "C" {
     /// object of the first occurrence of the specified value, starting the
     /// search at fromIndex.  Returns -1 if the value is not found.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/indexOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/indexOf)
     #[wasm_bindgen(method, js_class = "String", js_name = indexOf)]
     pub fn index_of(this: &JsString, search_value: &str, from_index: i32) -> i32;
 
@@ -2992,14 +3206,28 @@ extern "C" {
     /// object of the last occurrence of the specified value, searching
     /// backwards from fromIndex.  Returns -1 if the value is not found.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/lastIndexOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/lastIndexOf)
     #[wasm_bindgen(method, js_class = "String", js_name = lastIndexOf)]
     pub fn last_index_of(this: &JsString, search_value: &str, from_index: i32) -> i32;
 
+    /// The localeCompare() method returns a number indicating whether
+    /// a reference string comes before or after or is the same as
+    /// the given string in sort order.
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/localeCompare)
+    #[wasm_bindgen(method, js_class = "String", js_name = localeCompare)]
+    pub fn locale_compare(this: &JsString, compare_string: &str, locales: &Array, options: &Object) -> i32;
+
+    /// The match() method retrieves the matches when matching a string against a regular expression.
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/match)
+    #[wasm_bindgen(method, js_class = "String", js_name = match)]
+    pub fn match_(this: &JsString, pattern: &RegExp) -> Option<Object>;
+
     /// The normalize() method returns the Unicode Normalization Form
     /// of a given string (if the value isn't a string, it will be converted to one first).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/normalize
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/normalize)
     #[wasm_bindgen(method, js_class = "String")]
     pub fn normalize(this: &JsString, form: &str) -> JsString;
 
@@ -3008,7 +3236,7 @@ extern "C" {
     /// length. The padding is applied from the end (right) of the current
     /// string.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padEnd
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padEnd)
     #[wasm_bindgen(method, js_class = "String", js_name = padEnd)]
     pub fn pad_end(this: &JsString, target_length: u32, pad_string: &str) -> JsString;
 
@@ -3017,78 +3245,125 @@ extern "C" {
     /// length. The padding is applied from the start (left) of the current
     /// string.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padStart
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padStart)
     #[wasm_bindgen(method, js_class = "String", js_name = padStart)]
     pub fn pad_start(this: &JsString, target_length: u32, pad_string: &str) -> JsString;
 
     /// The repeat() method constructs and returns a new string which contains the specified
     /// number of copies of the string on which it was called, concatenated together.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat)
     #[wasm_bindgen(method, js_class = "String")]
     pub fn repeat(this: &JsString, count: i32) -> JsString;
 
+    /// The replace() method returns a new string with some or all matches of a pattern
+    /// replaced by a replacement. The pattern can be a string or a RegExp, and
+    /// the replacement can be a string or a function to be called for each match.
+    ///
+    /// Note: The original string will remain unchanged.
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace)
+    #[wasm_bindgen(method, js_class = "String")]
+    pub fn replace(this: &JsString, pattern: &str, replacement: &str) -> JsString;
+
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace)
+    #[wasm_bindgen(method, js_class = "String", js_name = replace)]
+    pub fn replace_with_function(this: &JsString, pattern: &str, replacement: &Function) -> JsString;
+
+    #[wasm_bindgen(method, js_class = "String", js_name = replace)]
+    pub fn replace_by_pattern(this: &JsString, pattern: &RegExp, replacement: &str) -> JsString;
+
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replace)
+    #[wasm_bindgen(method, js_class = "String", js_name = replace)]
+    pub fn replace_by_pattern_with_function(this: &JsString, pattern: &RegExp, replacement: &Function) -> JsString;
+
+    /// The search() method executes a search for a match between
+    /// a regular expression and this String object.
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/search)
+    #[wasm_bindgen(method, js_class = "String")]
+    pub fn search(this: &JsString, pattern: &RegExp) -> i32;
+
     /// The `slice()` method extracts a section of a string and returns it as a
     /// new string, without modifying the original string.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice)
     #[wasm_bindgen(method, js_class = "String")]
     pub fn slice(this: &JsString, start: u32, end: u32) -> JsString;
 
+    /// The split() method splits a String object into an array of strings by separating the string
+    /// into substrings, using a specified separator string to determine where to make each split.
+    ///
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/split)
+    #[wasm_bindgen(method, js_class = "String")]
+    pub fn split(this: &JsString, separator: &str) -> Array;
+
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/split)
+    #[wasm_bindgen(method, js_class = "String", js_name = split)]
+    pub fn split_limit(this: &JsString, separator: &str, limit: u32) -> Array;
+
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/split)
+    #[wasm_bindgen(method, js_class = "String", js_name = split)]
+    pub fn split_by_pattern(this: &JsString, pattern: &RegExp) -> Array;
+
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/split)
+    #[wasm_bindgen(method, js_class = "String", js_name = split)]
+    pub fn split_by_pattern_limit(this: &JsString, pattern: &RegExp, limit: u32) -> Array;
+
     /// The `startsWith()` method determines whether a string begins with the
     /// characters of a specified string, returning true or false as
     /// appropriate.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith)
     #[wasm_bindgen(method, js_class = "String", js_name = startsWith)]
     pub fn starts_with(this: &JsString, search_string: &str, position: u32) -> bool;
 
     /// The `substring()` method returns the part of the string between the
     /// start and end indexes, or to the end of the string.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substring
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substring)
     #[wasm_bindgen(method, js_class = "String")]
     pub fn substring(this: &JsString, index_start: u32, index_end: u32) -> JsString;
 
     /// The `substr()` method returns the part of a string between
     /// the start index and a number of characters after it.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr)
     #[wasm_bindgen(method, js_class = "String")]
     pub fn substr(this: &JsString, start: i32, length: i32) -> JsString;
 
     /// The toLocaleLowerCase() method returns the calling string value converted to lower case,
     /// according to any locale-specific case mappings.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toLocaleLowerCase
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toLocaleLowerCase)
     #[wasm_bindgen(method, js_class = "String", js_name = toLocaleLowerCase)]
-    pub fn to_locale_lower_case(this: &JsString, local: Option<&str>) -> JsString;
+    pub fn to_locale_lower_case(this: &JsString, locale: Option<&str>) -> JsString;
 
     /// The toLocaleUpperCase() method returns the calling string value converted to upper case,
     /// according to any locale-specific case mappings.
     ///
-    /// https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/String/toLocaleUpperCase
+    /// [MDN documentation](https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/String/toLocaleUpperCase)
     #[wasm_bindgen(method, js_class = "String", js_name = toLocaleUpperCase)]
-    pub fn to_locale_upper_case(this: &JsString, local: Option<&str>) -> JsString;
+    pub fn to_locale_upper_case(this: &JsString, locale: Option<&str>) -> JsString;
 
     /// The `toLowerCase()` method returns the calling string value
     /// converted to lower case.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toLowerCase
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toLowerCase)
     #[wasm_bindgen(method, js_class = "String", js_name = toLowerCase)]
     pub fn to_lower_case(this: &JsString) -> JsString;
 
     /// The `toString()` method returns a string representing the specified
     /// object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toString)
     #[wasm_bindgen(method, js_class = "String", js_name = toString)]
     pub fn to_string(this: &JsString) -> JsString;
 
     /// The `toUpperCase()` method returns the calling string value converted to
     /// uppercase (the value will be converted to a string if it isn't one).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase)
     #[wasm_bindgen(method, js_class = "String", js_name = toUpperCase)]
     pub fn to_upper_case(this: &JsString) -> JsString;
 
@@ -3097,41 +3372,41 @@ extern "C" {
     /// no-break space, etc.) and all the line terminator characters (LF, CR,
     /// etc.).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trim
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trim)
     #[wasm_bindgen(method, js_class = "String")]
     pub fn trim(this: &JsString) -> JsString;
 
     /// The `trimEnd()` method removes whitespace from the end of a string.
     /// `trimRight()` is an alias of this method.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimEnd
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimEnd)
     #[wasm_bindgen(method, js_class = "String", js_name = trimEnd)]
     pub fn trim_end(this: &JsString) -> JsString;
 
     /// The `trimEnd()` method removes whitespace from the end of a string.
     /// `trimRight()` is an alias of this method.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimEnd
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimEnd)
     #[wasm_bindgen(method, js_class = "String", js_name = trimRight)]
     pub fn trim_right(this: &JsString) -> JsString;
 
     /// The `trimStart()` method removes whitespace from the beginning of a
     /// string.  `trimLeft()` is an alias of this method.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimStart
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimStart)
     #[wasm_bindgen(method, js_class = "String", js_name = trimStart)]
     pub fn trim_start(this: &JsString) -> JsString;
 
     /// The `trimStart()` method removes whitespace from the beginning of a
     /// string.  `trimLeft()` is an alias of this method.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimStart
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trimStart)
     #[wasm_bindgen(method, js_class = "String", js_name = trimLeft)]
     pub fn trim_left(this: &JsString) -> JsString;
 
     /// The `valueOf()` method returns the primitive value of a `String` object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/valueOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/valueOf)
     #[wasm_bindgen(method, js_class = "String", js_name = valueOf)]
     pub fn value_of(this: &JsString) -> JsString;
 }
@@ -3217,7 +3492,7 @@ extern "C" {
     /// if a constructor object recognizes an object as its instance.
     /// The `instanceof` operator's behavior can be customized by this symbol.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/hasInstance
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/hasInstance)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural, js_name = hasInstance)]
     pub fn has_instance() -> Symbol;
 
@@ -3225,14 +3500,14 @@ extern "C" {
     /// if an object should be flattened to its array elements when using the
     /// `Array.prototype.concat()` method.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/isConcatSpreadable
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/isConcatSpreadable)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural, js_name = isConcatSpreadable)]
     pub fn is_concat_spreadable() -> Symbol;
 
     /// The `Symbol.iterator` well-known symbol specifies the default iterator
     /// for an object.  Used by `for...of`.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/iterator
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/iterator)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural)]
     pub fn iterator() -> Symbol;
 
@@ -3240,7 +3515,7 @@ extern "C" {
     /// expression against a string. This function is called by the
     /// `String.prototype.match()` method.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/match
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/match)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural, js_name = match)]
     pub fn match_() -> Symbol;
 
@@ -3251,7 +3526,7 @@ extern "C" {
     /// For more information, see `RegExp.prototype[@@replace]()` and
     /// `String.prototype.replace()`.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/replace
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/replace)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural)]
     pub fn replace() -> Symbol;
 
@@ -3262,14 +3537,14 @@ extern "C" {
     /// For more information, see `RegExp.prototype[@@search]()` and
     /// `String.prototype.search()`.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/search
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/search)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural)]
     pub fn search() -> Symbol;
 
     /// The well-known symbol `Symbol.species` specifies a function-valued
     /// property that the constructor function uses to create derived objects.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/species
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/species)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural)]
     pub fn species() -> Symbol;
 
@@ -3279,7 +3554,7 @@ extern "C" {
     ///
     /// For more information, see `RegExp.prototype[@@split]()` and
     /// `String.prototype.split()`.
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/split
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/split)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural)]
     pub fn split() -> Symbol;
 
@@ -3287,7 +3562,7 @@ extern "C" {
     /// property that is called to convert an object to a corresponding
     /// primitive value.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toPrimitive
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toPrimitive)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural, js_name = toPrimitive)]
     pub fn to_primitive() -> Symbol;
 
@@ -3296,7 +3571,7 @@ extern "C" {
     /// object.  It is accessed internally by the `Object.prototype.toString()`
     /// method.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toString)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural, js_name = toStringTag)]
     pub fn to_string_tag() -> Symbol;
 
@@ -3304,19 +3579,19 @@ extern "C" {
     /// the given key and returns it if found.
     /// Otherwise a new symbol gets created in the global symbol registry with this key.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/for
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/for)
     #[wasm_bindgen(static_method_of = Symbol, js_name = for)]
     pub fn for_(key: &str) -> Symbol;
 
     /// The Symbol.keyFor(sym) method retrieves a shared symbol key from the global symbol registry for the given symbol.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/keyFor
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/keyFor)
     #[wasm_bindgen(static_method_of = Symbol, js_name = keyFor)]
     pub fn key_for(sym: &Symbol) -> JsValue;
 
     /// The toString() method returns a string representing the specified Symbol object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toString
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toString)
     #[wasm_bindgen(method, js_name = toString)]
     pub fn to_string(this: &Symbol) -> JsString;
 
@@ -3324,13 +3599,13 @@ extern "C" {
     /// value of whose own and inherited property names are excluded from the
     /// with environment bindings of the associated object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/unscopables
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/unscopables)
     #[wasm_bindgen(static_method_of = Symbol, getter, structural)]
     pub fn unscopables() -> Symbol;
 
     /// The valueOf() method returns the primitive value of a Symbol object.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/valueOf
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/valueOf)
     #[wasm_bindgen(method, js_name = valueOf)]
     pub fn value_of(this: &Symbol) -> Symbol;
 }
@@ -3346,7 +3621,7 @@ pub mod Intl {
         /// the canonical locale names. Duplicates will be omitted and elements
         /// will be validated as structurally valid language tags.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/getCanonicalLocales
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/getCanonicalLocales)
         #[wasm_bindgen(js_name = getCanonicalLocales, js_namespace = Intl)]
         pub fn get_canonical_locales(s: &JsValue) -> Array;
     }
@@ -3357,15 +3632,15 @@ pub mod Intl {
         /// The Intl.Collator object is a constructor for collators, objects
         /// that enable language sensitive string comparison.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator
-        #[wasm_bindgen(js_namespace = Intl)]
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator)
+        #[wasm_bindgen(extends = Object, js_namespace = Intl)]
         #[derive(Clone, Debug)]
         pub type Collator;
 
         /// The Intl.Collator object is a constructor for collators, objects
         /// that enable language sensitive string comparison.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator)
         #[wasm_bindgen(constructor, js_namespace = Intl)]
         pub fn new(locales: &Array, options: &Object) -> Collator;
 
@@ -3373,7 +3648,7 @@ pub mod Intl {
         /// compares two strings according to the sort order of this Collator
         /// object.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator/compare
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator/compare)
         #[wasm_bindgen(method, getter, js_class = "Intl.Collator")]
         pub fn compare(this: &Collator) -> Function;
 
@@ -3381,7 +3656,7 @@ pub mod Intl {
         /// object with properties reflecting the locale and collation options
         /// computed during initialization of this Collator object.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator/resolvedOptions
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator/resolvedOptions)
         #[wasm_bindgen(method, js_namespace = Intl, js_name = resolvedOptions)]
         pub fn resolved_options(this: &Collator) -> Object;
 
@@ -3390,7 +3665,7 @@ pub mod Intl {
         /// collation without having to fall back to the runtime's default
         /// locale.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator/supportedLocalesOf
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Collator/supportedLocalesOf)
         #[wasm_bindgen(static_method_of = Collator, js_namespace = Intl, js_name = supportedLocalesOf)]
         pub fn supported_locales_of(locales: &Array, options: &Object) -> Array;
     }
@@ -3401,15 +3676,15 @@ pub mod Intl {
         /// The Intl.DateTimeFormat object is a constructor for objects
         /// that enable language-sensitive date and time formatting.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat
-        #[wasm_bindgen(js_namespace = Intl)]
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat)
+        #[wasm_bindgen(extends = Object, js_namespace = Intl)]
         #[derive(Clone, Debug)]
         pub type DateTimeFormat;
 
         /// The Intl.DateTimeFormat object is a constructor for objects
         /// that enable language-sensitive date and time formatting.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat)
         #[wasm_bindgen(constructor, js_namespace = Intl)]
         pub fn new(locales: &Array, options: &Object) -> DateTimeFormat;
 
@@ -3417,14 +3692,14 @@ pub mod Intl {
         /// formats a date according to the locale and formatting options of this
         /// Intl.DateTimeFormat object.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/format
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/format)
         #[wasm_bindgen(method, getter, js_class = "Intl.DateTimeFormat")]
         pub fn format(this: &DateTimeFormat) -> Function;
 
         /// The Intl.DateTimeFormat.prototype.formatToParts() method allows locale-aware
         /// formatting of strings produced by DateTimeFormat formatters.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/formatToParts
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/formatToParts)
         #[wasm_bindgen(method, js_class = "Intl.DateTimeFormat", js_name = formatToParts)]
         pub fn format_to_parts(this: &DateTimeFormat, date: &Date) -> Array;
 
@@ -3432,7 +3707,7 @@ pub mod Intl {
         /// object with properties reflecting the locale and date and time formatting
         /// options computed during initialization of this DateTimeFormat object.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/resolvedOptions
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/resolvedOptions)
         #[wasm_bindgen(method, js_namespace = Intl, js_name = resolvedOptions)]
         pub fn resolved_options(this: &DateTimeFormat) -> Object;
 
@@ -3441,7 +3716,7 @@ pub mod Intl {
         /// and time formatting without having to fall back to the runtime's default
         /// locale.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/supportedLocalesOf
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DateTimeFormat/supportedLocalesOf)
         #[wasm_bindgen(static_method_of = DateTimeFormat, js_namespace = Intl, js_name = supportedLocalesOf)]
         pub fn supported_locales_of(locales: &Array, options: &Object) -> Array;
     }
@@ -3452,15 +3727,15 @@ pub mod Intl {
         /// The Intl.NumberFormat object is a constructor for objects
         /// that enable language sensitive number formatting.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat
-        #[wasm_bindgen(js_namespace = Intl)]
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat)
+        #[wasm_bindgen(extends = Object, js_namespace = Intl)]
         #[derive(Clone, Debug)]
         pub type NumberFormat;
 
         /// The Intl.NumberFormat object is a constructor for objects
         /// that enable language sensitive number formatting.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat)
         #[wasm_bindgen(constructor, js_namespace = Intl)]
         pub fn new(locales: &Array, options: &Object) -> NumberFormat;
 
@@ -3468,14 +3743,14 @@ pub mod Intl {
         /// formats a number according to the locale and formatting options of this
         /// NumberFormat object.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat/format
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat/format)
         #[wasm_bindgen(method, getter, js_class = "Intl.NumberFormat")]
         pub fn format(this: &NumberFormat) -> Function;
 
         /// The Intl.Numberformat.prototype.formatToParts() method allows locale-aware
         /// formatting of strings produced by NumberTimeFormat formatters.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat/formatToParts
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat/formatToParts)
         #[wasm_bindgen(method, js_class = "Intl.NumberFormat", js_name = formatToParts)]
         pub fn format_to_parts(this: &NumberFormat, number: f64) -> Array;
 
@@ -3483,7 +3758,7 @@ pub mod Intl {
         /// object with properties reflecting the locale and number formatting
         /// options computed during initialization of this NumberFormat object.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat/resolvedOptions
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat/resolvedOptions)
         #[wasm_bindgen(method, js_namespace = Intl, js_name = resolvedOptions)]
         pub fn resolved_options(this: &NumberFormat) -> Object;
 
@@ -3491,7 +3766,7 @@ pub mod Intl {
         /// containing those of the provided locales that are supported in number
         /// formatting without having to fall back to the runtime's default locale.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat/supportedLocalesOf
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/NumberFormat/supportedLocalesOf)
         #[wasm_bindgen(static_method_of = NumberFormat, js_namespace = Intl, js_name = supportedLocalesOf)]
         pub fn supported_locales_of(locales: &Array, options: &Object) -> Array;
     }
@@ -3502,15 +3777,15 @@ pub mod Intl {
         /// The Intl.PluralRules object is a constructor for objects
         /// that enable plural sensitive formatting and plural language rules.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules
-        #[wasm_bindgen(js_namespace = Intl)]
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules)
+        #[wasm_bindgen(extends = Object, js_namespace = Intl)]
         #[derive(Clone, Debug)]
         pub type PluralRules;
 
         /// The Intl.PluralRules object is a constructor for objects
         /// that enable plural sensitive formatting and plural language rules.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules)
         #[wasm_bindgen(constructor, js_namespace = Intl)]
         pub fn new(locales: &Array, options: &Object) -> PluralRules;
 
@@ -3518,14 +3793,14 @@ pub mod Intl {
         /// object with properties reflecting the locale and plural formatting
         /// options computed during initialization of this PluralRules object.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules/resolvedOptions
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules/resolvedOptions)
         #[wasm_bindgen(method, js_namespace = Intl, js_name = resolvedOptions)]
         pub fn resolved_options(this: &PluralRules) -> Object;
 
         /// The Intl.PluralRules.prototype.select method returns a String indicating
         /// which plural rule to use for locale-aware formatting.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules/select
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules/select)
         #[wasm_bindgen(method, js_namespace = Intl)]
         pub fn select(this: &PluralRules, number: f64) -> JsString;
 
@@ -3533,7 +3808,7 @@ pub mod Intl {
         /// containing those of the provided locales that are supported in plural
         /// formatting without having to fall back to the runtime's default locale.
         ///
-        /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules/supportedLocalesOf
+        /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/PluralRules/supportedLocalesOf)
         #[wasm_bindgen(static_method_of = PluralRules, js_namespace = Intl, js_name = supportedLocalesOf)]
         pub fn supported_locales_of(locales: &Array, options: &Object) -> Array;
     }
@@ -3545,7 +3820,8 @@ extern {
     /// The `Promise` object represents the eventual completion (or failure) of
     /// an asynchronous operation, and its resulting value.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise)
+    #[wasm_bindgen(extends = Object)]
     pub type Promise;
 
     /// Creates a new `Promise` with the provided executor `cb`
@@ -3563,7 +3839,7 @@ extern {
     /// If an error is thrown in the executor function, the promise is rejected.
     /// The return value of the executor is ignored.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise)
     #[wasm_bindgen(constructor)]
     pub fn new(cb: &mut FnMut(Function, Function)) -> Promise;
 
@@ -3572,7 +3848,7 @@ extern {
     /// or when the iterable argument contains no promises. It rejects with the
     /// reason of the first promise that rejects.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/all
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/all)
     #[wasm_bindgen(static_method_of = Promise)]
     pub fn all(obj: &JsValue) -> Promise;
 
@@ -3580,14 +3856,14 @@ extern {
     /// rejects as soon as one of the promises in the iterable resolves or
     /// rejects, with the value or reason from that promise.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/race
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/race)
     #[wasm_bindgen(static_method_of = Promise)]
     pub fn race(obj: &JsValue) -> Promise;
 
     /// The `Promise.reject(reason)` method returns a `Promise` object that is
     /// rejected with the given reason.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/reject
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/reject)
     #[wasm_bindgen(static_method_of = Promise)]
     pub fn reject(obj: &JsValue) -> Promise;
 
@@ -3597,7 +3873,7 @@ extern {
     /// returned promise will "follow" that thenable, adopting its eventual
     /// state; otherwise the returned promise will be fulfilled with the value.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/resolve
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/resolve)
     #[wasm_bindgen(static_method_of = Promise)]
     pub fn resolve(obj: &JsValue) -> Promise;
 
@@ -3606,14 +3882,14 @@ extern {
     /// onRejected)` (in fact, calling `obj.catch(onRejected)` internally calls
     /// `obj.then(undefined, onRejected)`).
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/catch
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/catch)
     #[wasm_bindgen(method)]
     pub fn catch(this: &Promise, cb: &Closure<FnMut(JsValue)>) -> Promise;
 
     /// The `then()` method returns a `Promise`. It takes up to two arguments:
     /// callback functions for the success and failure cases of the `Promise`.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/then
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/then)
     #[wasm_bindgen(method)]
     pub fn then(this: &Promise, cb: &Closure<FnMut(JsValue)>) -> Promise;
 
@@ -3632,7 +3908,7 @@ extern {
     /// This lets you avoid duplicating code in both the promise's `then()` and
     /// `catch()` handlers.
     ///
-    /// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/finally
+    /// [MDN documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/finally)
     #[wasm_bindgen(method)]
     pub fn finally(this: &Promise, cb: &Closure<FnMut()>) -> Promise;
 }
diff --git a/crates/js-sys/tests/headless.rs b/crates/js-sys/tests/headless.rs
index 139c1358..1b45ea7b 100755
--- a/crates/js-sys/tests/headless.rs
+++ b/crates/js-sys/tests/headless.rs
@@ -1,4 +1,3 @@
-#![feature(use_extern_macros)]
 #![cfg(target_arch = "wasm32")]
 
 extern crate wasm_bindgen_test;
diff --git a/crates/js-sys/tests/wasm/Array.rs b/crates/js-sys/tests/wasm/Array.rs
index 604bbf85..fe6d8867 100644
--- a/crates/js-sys/tests/wasm/Array.rs
+++ b/crates/js-sys/tests/wasm/Array.rs
@@ -306,4 +306,5 @@ fn array_inheritance() {
     let array = Array::new();
     assert!(array.is_instance_of::<Array>());
     assert!(array.is_instance_of::<Object>());
+    let _: &Object = array.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/ArrayBuffer.rs b/crates/js-sys/tests/wasm/ArrayBuffer.rs
index 21fa0491..a4a082a4 100644
--- a/crates/js-sys/tests/wasm/ArrayBuffer.rs
+++ b/crates/js-sys/tests/wasm/ArrayBuffer.rs
@@ -41,4 +41,5 @@ fn arraybuffer_inheritance() {
     let buf = ArrayBuffer::new(4);
     assert!(buf.is_instance_of::<ArrayBuffer>());
     assert!(buf.is_instance_of::<Object>());
+    let _: &Object = buf.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/Boolean.rs b/crates/js-sys/tests/wasm/Boolean.rs
index 34c53e01..c7aa9377 100644
--- a/crates/js-sys/tests/wasm/Boolean.rs
+++ b/crates/js-sys/tests/wasm/Boolean.rs
@@ -18,4 +18,5 @@ fn boolean_inheritance() {
     let b = Boolean::new(&JsValue::from(true));
     assert!(b.is_instance_of::<Boolean>());
     assert!(b.is_instance_of::<Object>());
+    let _: &Object = b.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/DataView.rs b/crates/js-sys/tests/wasm/DataView.rs
index 8efe0c6d..84fdf0f6 100644
--- a/crates/js-sys/tests/wasm/DataView.rs
+++ b/crates/js-sys/tests/wasm/DataView.rs
@@ -1,7 +1,7 @@
+use js_sys::*;
+use wasm_bindgen::JsCast;
 use wasm_bindgen::JsValue;
 use wasm_bindgen_test::*;
-use wasm_bindgen::JsCast;
-use js_sys::*;
 
 #[wasm_bindgen_test]
 fn test() {
@@ -36,7 +36,9 @@ fn test() {
     v.set_int8(0, 42);
 
     // TODO: figure out how to do `bytes[2]`
-    bytes.subarray(2, 3).for_each(&mut |x, _, _| assert_eq!(x, 42));
+    bytes
+        .subarray(2, 3)
+        .for_each(&mut |x, _, _| assert_eq!(x, 42));
 }
 
 #[wasm_bindgen_test]
@@ -50,4 +52,5 @@ fn dataview_inheritance() {
 
     assert!(v.is_instance_of::<DataView>());
     assert!(v.is_instance_of::<Object>());
+    let _: &Object = v.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/Date.rs b/crates/js-sys/tests/wasm/Date.rs
index c4026b47..d0496fa4 100644
--- a/crates/js-sys/tests/wasm/Date.rs
+++ b/crates/js-sys/tests/wasm/Date.rs
@@ -413,4 +413,5 @@ fn date_inheritance() {
     let date = Date::new(&"August 19, 1975 23:15:30".into());
     assert!(date.is_instance_of::<Date>());
     assert!(date.is_instance_of::<Object>());
+    let _: &Object = date.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/Error.rs b/crates/js-sys/tests/wasm/Error.rs
index abe856f1..e05ed23c 100644
--- a/crates/js-sys/tests/wasm/Error.rs
+++ b/crates/js-sys/tests/wasm/Error.rs
@@ -42,4 +42,5 @@ fn error_inheritance() {
     let error = Error::new("test");
     assert!(error.is_instance_of::<Error>());
     assert!(error.is_instance_of::<Object>());
+    let _: &Object = error.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/EvalError.rs b/crates/js-sys/tests/wasm/EvalError.rs
index d1deb73a..e23a25b2 100644
--- a/crates/js-sys/tests/wasm/EvalError.rs
+++ b/crates/js-sys/tests/wasm/EvalError.rs
@@ -52,4 +52,6 @@ fn evalerror_inheritance() {
     assert!(error.is_instance_of::<EvalError>());
     assert!(error.is_instance_of::<Error>());
     assert!(error.is_instance_of::<Object>());
+    let _: &Error = error.as_ref();
+    let _: &Object = error.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/Function.rs b/crates/js-sys/tests/wasm/Function.rs
index c7fed283..86bfa919 100644
--- a/crates/js-sys/tests/wasm/Function.rs
+++ b/crates/js-sys/tests/wasm/Function.rs
@@ -66,4 +66,5 @@ fn to_string() {
 fn function_inheritance() {
     assert!(MAX.is_instance_of::<Function>());
     assert!(MAX.is_instance_of::<Object>());
+    let _: &Object = MAX.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/Generator.rs b/crates/js-sys/tests/wasm/Generator.rs
index 5fb738fc..3395ced2 100644
--- a/crates/js-sys/tests/wasm/Generator.rs
+++ b/crates/js-sys/tests/wasm/Generator.rs
@@ -1,5 +1,6 @@
 use wasm_bindgen::prelude::*;
 use wasm_bindgen_test::*;
+use wasm_bindgen::JsCast;
 use js_sys::*;
 
 #[wasm_bindgen(module = "tests/wasm/Generator.js")]
@@ -56,3 +57,10 @@ fn throw() {
     assert!(next.value().is_undefined());
     assert!(next.done());
 }
+
+#[wasm_bindgen_test]
+fn generator_inheritance() {
+    let gen = dummy_generator();
+    
+    assert!(gen.is_instance_of::<Object>());
+}
diff --git a/crates/js-sys/tests/wasm/Intl.rs b/crates/js-sys/tests/wasm/Intl.rs
index 6fc8add6..74c57ecd 100644
--- a/crates/js-sys/tests/wasm/Intl.rs
+++ b/crates/js-sys/tests/wasm/Intl.rs
@@ -37,6 +37,17 @@ fn collator() {
     assert!(a.is_instance_of::<Array>());
 }
 
+#[wasm_bindgen_test]
+fn collator_inheritance() {
+    let locales = Array::of1(&JsValue::from("en-US"));
+    let opts = Object::new();
+    let c = Intl::Collator::new(&locales, &opts);
+
+    assert!(c.is_instance_of::<Intl::Collator>());
+    assert!(c.is_instance_of::<Object>());
+    let _: &Object = c.as_ref();
+}
+
 #[wasm_bindgen_test]
 fn date_time_format() {
     let locales = Array::of1(&JsValue::from("en-US"));
@@ -52,6 +63,17 @@ fn date_time_format() {
     assert!(a.is_instance_of::<Array>());
 }
 
+#[wasm_bindgen_test]
+fn date_time_format_inheritance() {
+    let locales = Array::of1(&JsValue::from("en-US"));
+    let opts = Object::new();
+    let c = Intl::DateTimeFormat::new(&locales, &opts);
+
+    assert!(c.is_instance_of::<Intl::DateTimeFormat>());
+    assert!(c.is_instance_of::<Object>());
+    let _: &Object = c.as_ref();
+}
+
 #[wasm_bindgen_test]
 fn number_format() {
     let locales = Array::of1(&JsValue::from("en-US"));
@@ -66,6 +88,17 @@ fn number_format() {
     assert!(a.is_instance_of::<Array>());
 }
 
+#[wasm_bindgen_test]
+fn number_format_inheritance() {
+    let locales = Array::of1(&JsValue::from("en-US"));
+    let opts = Object::new();
+    let n = Intl::NumberFormat::new(&locales, &opts);
+
+    assert!(n.is_instance_of::<Intl::NumberFormat>());
+    assert!(n.is_instance_of::<Object>());
+    let _: &Object = n.as_ref();
+}
+
 #[wasm_bindgen_test]
 fn plural_rules() {
     let locales = Array::of1(&JsValue::from("en-US"));
@@ -75,6 +108,17 @@ fn plural_rules() {
     assert!(r.resolved_options().is_instance_of::<Object>());
     assert_eq!(r.select(1_f64), "one");
 
-    let r = Intl::PluralRules::supported_locales_of(&locales, &opts);
-    assert!(r.is_instance_of::<Array>());
+    let a = Intl::PluralRules::supported_locales_of(&locales, &opts);
+    assert!(a.is_instance_of::<Array>());
+}
+
+#[wasm_bindgen_test]
+fn plural_rules_inheritance() {
+    let locales = Array::of1(&JsValue::from("en-US"));
+    let opts = Object::new();
+    let r = Intl::PluralRules::new(&locales, &opts);
+
+    assert!(r.is_instance_of::<Intl::PluralRules>());
+    assert!(r.is_instance_of::<Object>());
+    let _: &Object = r.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/JsString.js b/crates/js-sys/tests/wasm/JsString.js
index 04a64a9a..fbaec7ae 100644
--- a/crates/js-sys/tests/wasm/JsString.js
+++ b/crates/js-sys/tests/wasm/JsString.js
@@ -1 +1,7 @@
-exports.new_string_object = () => new String("hi");
\ No newline at end of file
+exports.new_string_object = () => new String("hi");
+
+exports.get_replacer_function = function() {
+	return function upperToHyphenLower(match, offset, string) {
+		return (offset > 0 ? '-' : '') + match.toLowerCase();
+	};
+};
diff --git a/crates/js-sys/tests/wasm/JsString.rs b/crates/js-sys/tests/wasm/JsString.rs
index 66fc5771..0553914e 100644
--- a/crates/js-sys/tests/wasm/JsString.rs
+++ b/crates/js-sys/tests/wasm/JsString.rs
@@ -7,6 +7,7 @@ use js_sys::*;
 #[wasm_bindgen(module = "tests/wasm/JsString.js")]
 extern {
     fn new_string_object() -> JsValue;
+    fn get_replacer_function() -> Function;
 }
 
 #[wasm_bindgen_test]
@@ -85,6 +86,23 @@ fn from_char_code() {
     assert_eq!(JsString::from_char_code4(codes[0], codes[1], codes[2], codes[3]), "½+¾=");
 }
 
+#[wasm_bindgen_test]
+fn from_code_point() {
+    let s = "☃★♲你";
+    let codes : Vec<u32> = s.chars()
+        .map(|char| char as u32)
+        .collect();
+
+    assert_eq!(JsString::from_code_point1(codes[0]).unwrap(), "☃");
+    assert_eq!(JsString::from_code_point2(codes[0], codes[1]).unwrap(), "☃★");
+    assert_eq!(JsString::from_code_point3(codes[0], codes[1], codes[2]).unwrap(), "☃★♲");
+    assert_eq!(JsString::from_code_point4(codes[0], codes[1], codes[2], codes[3]).unwrap(), "☃★♲你");
+
+    assert!(!JsString::from_code_point1(0x10FFFF).is_err());
+    assert!(JsString::from_code_point1(0x110000).is_err());
+    assert!(JsString::from_code_point1(u32::max_value()).is_err());
+}
+
 #[wasm_bindgen_test]
 fn includes() {
     let str = JsString::from("Blue Whale");
@@ -135,6 +153,95 @@ fn last_index_of() {
     assert_eq!(js.last_index_of("", 2), 2);
 }
 
+#[wasm_bindgen_test]
+fn locale_compare() {
+    let a = "résumé";
+    let b = "RESUME";
+    let js_a = JsString::from(a);
+    let js_b = JsString::from(b);
+    let locales = Array::new();
+    let options = Object::new();
+
+    assert_eq!(js_a.locale_compare(a, &locales, &options), 0);
+    assert_eq!(js_b.locale_compare(b, &locales, &options), 0);
+    assert!(js_a.locale_compare(b, &locales, &options) > 0);
+    assert!(js_b.locale_compare(a, &locales, &options) < 0);
+
+    locales.push(&"en".into());
+    Reflect::set(options.as_ref(), &"sensitivity".into(), &"base".into());
+
+    assert_eq!(js_a.locale_compare(a, &locales, &options), 0);
+    assert_eq!(js_a.locale_compare(b, &locales, &options), 0);
+    assert_eq!(js_b.locale_compare(a, &locales, &options), 0);
+    assert_eq!(js_b.locale_compare(b, &locales, &options), 0);
+
+    let a = "ä";
+    let z = "z";
+    let js_a = JsString::from(a);
+    let js_z = JsString::from(z);
+    let locales_de = Array::of1(&"de".into());
+    let locales_sv = Array::of1(&"sv".into());
+    let options = Object::new();
+
+    assert_eq!(js_a.locale_compare(a, &locales_de, &options), 0);
+    assert_eq!(js_z.locale_compare(z, &locales_de, &options), 0);
+    assert!(js_a.locale_compare(z, &locales_de, &options) < 0);
+    assert!(js_z.locale_compare(a, &locales_de, &options) > 0);
+
+    assert_eq!(js_a.locale_compare(a, &locales_sv, &options), 0);
+    assert_eq!(js_z.locale_compare(z, &locales_sv, &options), 0);
+    assert!(js_a.locale_compare(z, &locales_sv, &options) < 0);
+    assert!(js_z.locale_compare(a, &locales_sv, &options) > 0);
+
+    let two = "2";
+    let ten = "10";
+    let js_two = JsString::from(two);
+    let js_ten = JsString::from(ten);
+    let locales = Array::new();
+    let options = Object::new();
+
+    assert_eq!(js_two.locale_compare(two, &locales, &options), 0);
+    assert_eq!(js_ten.locale_compare(ten, &locales, &options), 0);
+    assert!(js_two.locale_compare(ten, &locales, &options) > 0);
+    assert!(js_ten.locale_compare(two, &locales, &options) < 0);
+
+    locales.push(&"en-u-kn-true".into());
+
+    assert!(js_two.locale_compare(ten, &locales, &options) < 0);
+    assert!(js_ten.locale_compare(two, &locales, &options) > 0);
+
+    let locales = Array::new();
+    Reflect::set(options.as_ref(), &"numeric".into(), &JsValue::TRUE);
+
+    assert!(js_two.locale_compare(ten, &locales, &options) < 0);
+    assert!(js_ten.locale_compare(two, &locales, &options) > 0);
+}
+
+#[wasm_bindgen_test]
+fn match_() {
+    let s = "The quick brown fox jumped over the lazy dog. It barked.";
+    let re = RegExp::new("[A-Z]", "g");
+    let result = JsString::from(s).match_(&re);
+    let obj = result.unwrap();
+
+    assert_eq!(Reflect::get(obj.as_ref(), &"0".into()), "T");
+    assert_eq!(Reflect::get(obj.as_ref(), &"1".into()), "I");
+
+    let result = JsString::from("foo").match_(&re);
+    assert!(result.is_none());
+
+    let s = "For more information, see Chapter 3.4.5.1";
+    let re = RegExp::new("see (chapter \\d+(\\.\\d)*)", "i");
+    let result = JsString::from(s).match_(&re);
+    let obj = result.unwrap();
+
+    assert_eq!(Reflect::get(obj.as_ref(), &"0".into()), "see Chapter 3.4.5.1");
+    assert_eq!(Reflect::get(obj.as_ref(), &"1".into()), "Chapter 3.4.5.1");
+    assert_eq!(Reflect::get(obj.as_ref(), &"2".into()), ".1");
+    assert_eq!(Reflect::get(obj.as_ref(), &"index".into()), 22);
+    assert_eq!(Reflect::get(obj.as_ref(), &"input".into()), s);
+}
+
 #[wasm_bindgen_test]
 fn normalize() {
     let js = JsString::from("\u{1E9B}\u{0323}");
@@ -178,12 +285,106 @@ fn repeat() {
     assert_eq!(JsString::from("test").repeat(3), "testtesttest");
 }
 
+#[wasm_bindgen_test]
+fn replace() {
+    let js = JsString::from("The quick brown fox jumped over the lazy dog. If the dog reacted, was it really lazy?");
+    let result = js.replace("dog", "ferret");
+
+    assert_eq!(result, "The quick brown fox jumped over the lazy ferret. If the dog reacted, was it really lazy?");
+
+    let js = JsString::from("borderTop");
+    let result = js.replace_with_function("T", &get_replacer_function());
+
+    assert_eq!(result, "border-top");
+
+    let js = JsString::from("The quick brown fox jumped over the lazy dog. If the dog reacted, was it really lazy?");
+    let re = RegExp::new("dog", "g");
+    let result = js.replace_by_pattern(&re, "ferret");
+
+    assert_eq!(result, "The quick brown fox jumped over the lazy ferret. If the ferret reacted, was it really lazy?");
+
+    let js = JsString::from("borderTop");
+    let re = RegExp::new("[A-Z]", "g");
+    let result = js.replace_by_pattern_with_function(&re, &get_replacer_function());
+
+    assert_eq!(result, "border-top");
+}
+
+#[wasm_bindgen_test]
+fn search() {
+    let js = JsString::from("The quick brown fox jumped over the lazy dog. If the dog reacted, was it really lazy?");
+    let re = RegExp::new("[^\\w\\s]", "g");
+
+    assert_eq!(js.search(&re), 44);
+
+    let js = JsString::from("hey JudE");
+    let re1 = RegExp::new("[A-Z]", "g");
+    let re2 = RegExp::new("[.]", "g");
+
+    assert_eq!(js.search(&re1), 4);
+    assert_eq!(js.search(&re2), -1);
+}
+
 #[wasm_bindgen_test]
 fn slice() {
     let characters = JsString::from("acxn18");
     assert_eq!(characters.slice(1, 3), "cx");
 }
 
+#[wasm_bindgen_test]
+fn split() {
+    let js = JsString::from("Oh brave new world");
+    let result = js.split(" ");
+
+    let mut v = Vec::with_capacity(result.length() as usize);
+    result.for_each(&mut |x, _, _| v.push(x));
+
+    assert_eq!(v[0], "Oh");
+    assert_eq!(v[1], "brave");
+    assert_eq!(v[2], "new");
+    assert_eq!(v[3], "world");
+
+    let js = JsString::from("Oct,Nov,Dec");
+    let result = js.split(",");
+
+    let mut v = Vec::with_capacity(result.length() as usize);
+    result.for_each(&mut |x, _, _| v.push(x));
+
+    assert_eq!(v[0], "Oct");
+    assert_eq!(v[1], "Nov");
+    assert_eq!(v[2], "Dec");
+
+    let result = js.split_limit(",", 2);
+
+    let mut v = Vec::with_capacity(result.length() as usize);
+    result.for_each(&mut |x, _, _| v.push(x));
+
+    assert_eq!(result.length(), 2);
+    assert_eq!(v[0], "Oct");
+    assert_eq!(v[1], "Nov");
+
+    let js = JsString::from("Oh brave new world");
+    let re = RegExp::new("\\s", "g");
+    let result = js.split_by_pattern(&re);
+
+    let mut v = Vec::with_capacity(result.length() as usize);
+    result.for_each(&mut |x, _, _| v.push(x));
+
+    assert_eq!(v[0], "Oh");
+    assert_eq!(v[1], "brave");
+    assert_eq!(v[2], "new");
+    assert_eq!(v[3], "world");
+
+    let result = js.split_by_pattern_limit(&re, 2);
+
+    let mut v = Vec::with_capacity(result.length() as usize);
+    result.for_each(&mut |x, _, _| v.push(x));
+
+    assert_eq!(result.length(), 2);
+    assert_eq!(v[0], "Oh");
+    assert_eq!(v[1], "brave");
+}
+
 #[wasm_bindgen_test]
 fn starts_with() {
     let js = JsString::from("To be, or not to be, that is the question.");
diff --git a/crates/js-sys/tests/wasm/Map.rs b/crates/js-sys/tests/wasm/Map.rs
index f9ba7740..91282282 100644
--- a/crates/js-sys/tests/wasm/Map.rs
+++ b/crates/js-sys/tests/wasm/Map.rs
@@ -93,4 +93,5 @@ fn map_inheritance() {
     let map = Map::new();
     assert!(map.is_instance_of::<Map>());
     assert!(map.is_instance_of::<Object>());
+    let _: &Object = map.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/Number.rs b/crates/js-sys/tests/wasm/Number.rs
index 9d43f8a2..b3fae6b1 100644
--- a/crates/js-sys/tests/wasm/Number.rs
+++ b/crates/js-sys/tests/wasm/Number.rs
@@ -111,4 +111,5 @@ fn number_inheritance() {
     let n = Number::new(&JsValue::from(42));
     assert!(n.is_instance_of::<Number>());
     assert!(n.is_instance_of::<Object>());
+    let _: &Object = n.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/Promise.rs b/crates/js-sys/tests/wasm/Promise.rs
new file mode 100644
index 00000000..a070b784
--- /dev/null
+++ b/crates/js-sys/tests/wasm/Promise.rs
@@ -0,0 +1,11 @@
+use wasm_bindgen_test::*;
+use wasm_bindgen::JsCast;
+use js_sys::*;
+
+#[wasm_bindgen_test]
+fn promise_inheritance() {
+    let promise = Promise::new(&mut |_, _| ());
+    assert!(promise.is_instance_of::<Promise>());
+    assert!(promise.is_instance_of::<Object>());
+    let _: &Object = promise.as_ref();
+}
diff --git a/crates/js-sys/tests/wasm/RangeError.rs b/crates/js-sys/tests/wasm/RangeError.rs
index 18c7d7d0..93b42b99 100644
--- a/crates/js-sys/tests/wasm/RangeError.rs
+++ b/crates/js-sys/tests/wasm/RangeError.rs
@@ -9,6 +9,8 @@ fn range_error() {
     assert!(error.is_instance_of::<RangeError>());
     assert!(error.is_instance_of::<Error>());
     assert!(error.is_instance_of::<Object>());
+    let _: &Error = error.as_ref();
+    let _: &Object = error.as_ref();
 
     let base: &Error = error.as_ref();
     assert_eq!(JsValue::from(base.message()), "out of range yo");
diff --git a/crates/js-sys/tests/wasm/ReferenceError.rs b/crates/js-sys/tests/wasm/ReferenceError.rs
index 218ad52e..82d6e692 100644
--- a/crates/js-sys/tests/wasm/ReferenceError.rs
+++ b/crates/js-sys/tests/wasm/ReferenceError.rs
@@ -9,6 +9,8 @@ fn reference_error() {
     assert!(error.is_instance_of::<ReferenceError>());
     assert!(error.is_instance_of::<Error>());
     assert!(error.is_instance_of::<Object>());
+    let _: &Error = error.as_ref();
+    let _: &Object = error.as_ref();
 
     let base: &Error = error.as_ref();
     assert_eq!(JsValue::from(base.message()), "bad reference, fool");
diff --git a/crates/js-sys/tests/wasm/RegExp.rs b/crates/js-sys/tests/wasm/RegExp.rs
index a77d4892..eedbaafc 100644
--- a/crates/js-sys/tests/wasm/RegExp.rs
+++ b/crates/js-sys/tests/wasm/RegExp.rs
@@ -7,6 +7,7 @@ fn regexp_inheritance() {
     let re = RegExp::new(".", "");
     assert!(re.is_instance_of::<RegExp>());
     assert!(re.is_instance_of::<Object>());
+    let _: &Object = re.as_ref();
 }
 
 #[wasm_bindgen_test]
diff --git a/crates/js-sys/tests/wasm/Set.rs b/crates/js-sys/tests/wasm/Set.rs
index 419d66b8..f475c5a0 100644
--- a/crates/js-sys/tests/wasm/Set.rs
+++ b/crates/js-sys/tests/wasm/Set.rs
@@ -87,4 +87,5 @@ fn set_inheritance() {
     let set = Set::new(&JsValue::undefined());
     assert!(set.is_instance_of::<Set>());
     assert!(set.is_instance_of::<Object>());
+    let _: &Object = set.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/SyntaxError.rs b/crates/js-sys/tests/wasm/SyntaxError.rs
index 23a211f0..136746af 100644
--- a/crates/js-sys/tests/wasm/SyntaxError.rs
+++ b/crates/js-sys/tests/wasm/SyntaxError.rs
@@ -9,6 +9,8 @@ fn syntax_error() {
     assert!(error.is_instance_of::<SyntaxError>());
     assert!(error.is_instance_of::<Error>());
     assert!(error.is_instance_of::<Object>());
+    let _: &Error = error.as_ref();
+    let _: &Object = error.as_ref();
 
     let base: &Error = error.as_ref();
     assert_eq!(JsValue::from(base.message()), "msg");
diff --git a/crates/js-sys/tests/wasm/TypeError.rs b/crates/js-sys/tests/wasm/TypeError.rs
index ef7b09fb..e9a9957a 100644
--- a/crates/js-sys/tests/wasm/TypeError.rs
+++ b/crates/js-sys/tests/wasm/TypeError.rs
@@ -9,6 +9,8 @@ fn type_error() {
     assert!(error.is_instance_of::<TypeError>());
     assert!(error.is_instance_of::<Error>());
     assert!(error.is_instance_of::<Object>());
+    let _: &Error = error.as_ref();
+    let _: &Object = error.as_ref();
 
     let base: &Error = error.as_ref();
     assert_eq!(JsValue::from(base.message()), "msg");
diff --git a/crates/js-sys/tests/wasm/UriError.rs b/crates/js-sys/tests/wasm/UriError.rs
index ddcafc49..df939e5d 100644
--- a/crates/js-sys/tests/wasm/UriError.rs
+++ b/crates/js-sys/tests/wasm/UriError.rs
@@ -9,6 +9,8 @@ fn uri_error() {
     assert!(error.is_instance_of::<UriError>());
     assert!(error.is_instance_of::<Error>());
     assert!(error.is_instance_of::<Object>());
+    let _: &Error = error.as_ref();
+    let _: &Object = error.as_ref();
 
     let base: &Error = error.as_ref();
     assert_eq!(JsValue::from(base.message()), "msg");
diff --git a/crates/js-sys/tests/wasm/WeakMap.rs b/crates/js-sys/tests/wasm/WeakMap.rs
index 8cfe464c..9b3f0d78 100644
--- a/crates/js-sys/tests/wasm/WeakMap.rs
+++ b/crates/js-sys/tests/wasm/WeakMap.rs
@@ -57,4 +57,5 @@ fn weakmap_inheritance() {
     let map = WeakMap::new();
     assert!(map.is_instance_of::<WeakMap>());
     assert!(map.is_instance_of::<Object>());
+    let _: &Object = map.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/WeakSet.rs b/crates/js-sys/tests/wasm/WeakSet.rs
index dc70ca8b..541bd448 100644
--- a/crates/js-sys/tests/wasm/WeakSet.rs
+++ b/crates/js-sys/tests/wasm/WeakSet.rs
@@ -47,4 +47,5 @@ fn weakset_inheritance() {
     let set = WeakSet::new();
     assert!(set.is_instance_of::<WeakSet>());
     assert!(set.is_instance_of::<Object>());
+    let _: &Object = set.as_ref();
 }
diff --git a/crates/js-sys/tests/wasm/WebAssembly.js b/crates/js-sys/tests/wasm/WebAssembly.js
new file mode 100644
index 00000000..51d0c343
--- /dev/null
+++ b/crates/js-sys/tests/wasm/WebAssembly.js
@@ -0,0 +1,28 @@
+const { TextEncoder } = require("util");
+
+const data =
+  "\u0000asm\u0001\u0000\u0000\u0000\u0001\b\u0002`\u0001\u007f\u0000`\u0000" +
+  "\u0000\u0002\u0019\u0001\u0007imports\rimported_func\u0000\u0000\u0003" +
+  "\u0002\u0001\u0001\u0007\u0011\u0001\rexported_func\u0000\u0001\n\b\u0001" +
+  "\u0006\u0000A*\u0010\u0000\u000b";
+
+const encoder = new TextEncoder();
+const wasmArray = encoder.encode(data);
+
+function getWasmArray() {
+  return wasmArray;
+}
+
+function getTableObject() {
+  return { element: "anyfunc", initial: 1 }
+}
+
+function getInvalidTableObject() {
+  return { element: "anyfunc", initial: 1, maximum: 0 }
+}
+
+module.exports = {
+  getInvalidTableObject,
+  getTableObject,
+  getWasmArray,
+};
diff --git a/crates/js-sys/tests/wasm/WebAssembly.rs b/crates/js-sys/tests/wasm/WebAssembly.rs
index 14fc5307..35207f96 100644
--- a/crates/js-sys/tests/wasm/WebAssembly.rs
+++ b/crates/js-sys/tests/wasm/WebAssembly.rs
@@ -1,9 +1,172 @@
-use wasm_bindgen_test::*;
+use futures::Future;
 use js_sys::*;
+use wasm_bindgen::{JsCast, prelude::*};
+use wasm_bindgen_futures::JsFuture;
+use wasm_bindgen_test::*;
+
+#[wasm_bindgen(module = "tests/wasm/WebAssembly.js")]
+extern {
+    #[wasm_bindgen(js_name = getWasmArray)]
+    fn get_wasm_array() -> Uint8Array;
+
+    #[wasm_bindgen(js_name = getTableObject)]
+    fn get_table_object() -> Object;
+
+    #[wasm_bindgen(js_name = getInvalidTableObject)]
+    fn get_invalid_table_object() -> Object;
+}
+
+fn get_invalid_wasm() -> JsValue {
+    ArrayBuffer::new(42).into()
+}
+
+fn get_bad_type_wasm() -> JsValue {
+    2.into()
+}
+
+fn get_valid_wasm() -> JsValue {
+    get_wasm_array().into()
+}
 
 #[wasm_bindgen_test]
 fn validate() {
-    assert!(!WebAssembly::validate(&ArrayBuffer::new(42).into()).unwrap());
+    assert!(!WebAssembly::validate(&get_invalid_wasm()).unwrap());
 
-    assert!(WebAssembly::validate(&2.into()).is_err());
+    assert!(WebAssembly::validate(&get_bad_type_wasm()).is_err());
+}
+
+#[wasm_bindgen_test(async)]
+fn compile_compile_error() -> impl Future<Item = (), Error = JsValue> {
+    let p = WebAssembly::compile(&get_invalid_wasm());
+    JsFuture::from(p)
+        .map(|_| unreachable!())
+        .or_else(|e| {
+            assert!(e.is_instance_of::<WebAssembly::CompileError>());
+            Ok(())
+        })
+}
+
+#[wasm_bindgen_test(async)]
+fn compile_type_error() -> impl Future<Item = (), Error = JsValue> {
+    let p = WebAssembly::compile(&get_bad_type_wasm());
+    JsFuture::from(p)
+        .map(|_| unreachable!())
+        .or_else(|e| {
+            assert!(e.is_instance_of::<TypeError>());
+            Ok(())
+        })
+}
+
+#[wasm_bindgen_test(async)]
+fn compile_valid() -> impl Future<Item = (), Error = JsValue> {
+    let p = WebAssembly::compile(&get_valid_wasm());
+    JsFuture::from(p)
+        .map(|module| {
+            assert!(module.is_instance_of::<WebAssembly::Module>());
+        })
+        .map_err(|_| unreachable!())
+}
+
+#[wasm_bindgen_test]
+fn module_inheritance() {
+    let module = WebAssembly::Module::new(&get_valid_wasm()).unwrap();
+    assert!(module.is_instance_of::<WebAssembly::Module>());
+    assert!(module.is_instance_of::<Object>());
+
+    let _: &Object = module.as_ref();
+}
+
+#[wasm_bindgen_test]
+fn module_error() {
+    let error = WebAssembly::Module::new(&get_invalid_wasm()).err().unwrap();
+    assert!(error.is_instance_of::<WebAssembly::CompileError>());
+
+    let error = WebAssembly::Module::new(&get_bad_type_wasm()).err().unwrap();
+    assert!(error.is_instance_of::<TypeError>());
+}
+
+#[wasm_bindgen_test]
+fn module_custom_sections() {
+    let module = WebAssembly::Module::new(&get_valid_wasm()).unwrap();
+    let cust_sec = WebAssembly::Module::custom_sections(&module, "abcd");
+    assert_eq!(cust_sec.length(), 0);
+}
+
+#[wasm_bindgen_test]
+fn module_exports() {
+    let module = WebAssembly::Module::new(&get_valid_wasm()).unwrap();
+    let exports = WebAssembly::Module::exports(&module);
+    assert_eq!(exports.length(), 1);
+}
+
+#[wasm_bindgen_test]
+fn module_imports() {
+    let module = WebAssembly::Module::new(&get_valid_wasm()).unwrap();
+    let imports = WebAssembly::Module::imports(&module);
+    assert_eq!(imports.length(), 1);
+}
+
+#[wasm_bindgen_test]
+fn table_inheritance() {
+    let table = WebAssembly::Table::new(&get_table_object().into()).unwrap();
+    assert!(table.is_instance_of::<WebAssembly::Table>());
+    assert!(table.is_instance_of::<Object>());
+
+    let _: &Object = table.as_ref();
+}
+
+#[wasm_bindgen_test]
+fn table_error() {
+    let error = WebAssembly::Table::new(&get_invalid_table_object()).err().unwrap();
+    assert!(error.is_instance_of::<RangeError>());
+}
+
+#[wasm_bindgen_test]
+fn table() {
+    let table = WebAssembly::Table::new(&get_table_object().into()).unwrap();
+    assert_eq!(table.length(), 1);
+}
+
+#[wasm_bindgen_test]
+fn compile_error_inheritance() {
+    let error = WebAssembly::CompileError::new("");
+    assert!(error.is_instance_of::<WebAssembly::CompileError>());
+    assert!(error.is_instance_of::<Error>());
+
+    let _: &Error = error.as_ref();
+}
+
+#[wasm_bindgen_test]
+fn link_error_inheritance() {
+    let error = WebAssembly::LinkError::new("");
+    assert!(error.is_instance_of::<WebAssembly::LinkError>());
+    assert!(error.is_instance_of::<Error>());
+
+    let _: &Error = error.as_ref();
+}
+
+#[wasm_bindgen_test]
+fn runtime_error_inheritance() {
+    let error = WebAssembly::RuntimeError::new("");
+    assert!(error.is_instance_of::<WebAssembly::RuntimeError>());
+    assert!(error.is_instance_of::<Error>());
+
+    let _: &Error = error.as_ref();
+}
+
+#[wasm_bindgen_test]
+fn memory_works() {
+    let obj = Object::new();
+    Reflect::set(obj.as_ref(), &"initial".into(), &1.into());
+    let mem = WebAssembly::Memory::new(&obj).unwrap();
+    assert!(mem.is_instance_of::<WebAssembly::Memory>());
+    assert!(mem.is_instance_of::<Object>());
+    assert!(mem.buffer().is_instance_of::<ArrayBuffer>());
+    assert_eq!(mem.grow(1), 1);
+    assert_eq!(mem.grow(2), 2);
+    assert_eq!(mem.grow(3), 4);
+    assert_eq!(
+        mem.buffer().dyn_into::<ArrayBuffer>().unwrap().byte_length(),
+        7 * 64 * 1024,
+    );
 }
diff --git a/crates/js-sys/tests/wasm/main.rs b/crates/js-sys/tests/wasm/main.rs
index 36271531..c72a998d 100755
--- a/crates/js-sys/tests/wasm/main.rs
+++ b/crates/js-sys/tests/wasm/main.rs
@@ -1,9 +1,10 @@
 #![cfg(target_arch = "wasm32")]
-#![feature(use_extern_macros)]
 #![allow(non_snake_case)]
 
+extern crate futures;
 extern crate js_sys;
 extern crate wasm_bindgen;
+extern crate wasm_bindgen_futures;
 extern crate wasm_bindgen_test;
 
 pub mod global_fns;
@@ -25,6 +26,7 @@ pub mod MapIterator;
 pub mod Math;
 pub mod Number;
 pub mod Object;
+pub mod Promise;
 pub mod Proxy;
 pub mod RangeError;
 pub mod ReferenceError;
diff --git a/crates/macro-support/Cargo.toml b/crates/macro-support/Cargo.toml
index 49c867d4..bf0e116d 100644
--- a/crates/macro-support/Cargo.toml
+++ b/crates/macro-support/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-macro-support"
-version = "0.2.17"
+version = "0.2.19"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/macro-support"
@@ -11,12 +11,12 @@ The part of the implementation of the `#[wasm_bindgen]` attribute that is not in
 """
 
 [features]
-spans = ["proc-macro2/nightly", "wasm-bindgen-backend/spans"]
+spans = ["wasm-bindgen-backend/spans"]
 extra-traits = ["syn/extra-traits"]
 
 [dependencies]
 syn = { version = '0.14', features = ['full'] }
 quote = '0.6'
 proc-macro2 = "0.4.9"
-wasm-bindgen-backend = { path = "../backend", version = "=0.2.17" }
-wasm-bindgen-shared = { path = "../shared", version = "=0.2.17" }
+wasm-bindgen-backend = { path = "../backend", version = "=0.2.19" }
+wasm-bindgen-shared = { path = "../shared", version = "=0.2.19" }
diff --git a/crates/macro-support/src/parser.rs b/crates/macro-support/src/parser.rs
index 951dd33d..942bca0a 100644
--- a/crates/macro-support/src/parser.rs
+++ b/crates/macro-support/src/parser.rs
@@ -500,7 +500,7 @@ impl<'a> ConvertToAst<(BindgenAttrs, &'a Option<String>)> for syn::ForeignItemFn
 
             ast::ImportFunctionKind::Method { class, ty, kind }
         } else if opts.constructor() {
-            let class = match wasm.ret {
+            let class = match js_ret {
                 Some(ref ty) => ty,
                 _ => bail_span!(self, "constructor returns must be bare types"),
             };
@@ -528,6 +528,7 @@ impl<'a> ConvertToAst<(BindgenAttrs, &'a Option<String>)> for syn::ForeignItemFn
 
         let shim = {
             let ns = match kind {
+                ast::ImportFunctionKind::ScopedMethod { .. } |
                 ast::ImportFunctionKind::Normal => (0, "n"),
                 ast::ImportFunctionKind::Method { ref class, .. } => (1, &class[..]),
             };
@@ -576,10 +577,12 @@ impl ConvertToAst<BindgenAttrs> for syn::ForeignItemType {
     }
 }
 
-impl ConvertToAst<BindgenAttrs> for syn::ForeignItemStatic {
+impl<'a> ConvertToAst<(BindgenAttrs, &'a Option<String>)> for syn::ForeignItemStatic {
     type Target = ast::ImportKind;
 
-    fn convert(self, opts: BindgenAttrs) -> Result<Self::Target, Diagnostic> {
+    fn convert(self, (opts, module): (BindgenAttrs, &'a Option<String>))
+        -> Result<Self::Target, Diagnostic>
+    {
         if self.mutability.is_some() {
             bail_span!(self.mutability, "cannot import mutable globals yet")
         }
@@ -588,11 +591,8 @@ impl ConvertToAst<BindgenAttrs> for syn::ForeignItemStatic {
         let js_name = opts.js_name().unwrap_or(&default_name);
         let shim = format!(
             "__wbg_static_accessor_{}_{}",
-            js_name
-                .chars()
-                .filter(|c| c.is_ascii_alphanumeric())
-                .collect::<String>(),
-            self.ident
+            self.ident,
+            ShortHash((&js_name, module, &self.ident)),
         );
         Ok(ast::ImportKind::Static(ast::ImportStatic {
             ty: *self.ty,
@@ -991,7 +991,7 @@ impl<'a> MacroParse<&'a BindgenAttrs> for syn::ForeignItem {
         let kind = match self {
             syn::ForeignItem::Fn(f) => f.convert((item_opts, &module))?,
             syn::ForeignItem::Type(t) => t.convert(item_opts)?,
-            syn::ForeignItem::Static(s) => s.convert(item_opts)?,
+            syn::ForeignItem::Static(s) => s.convert((item_opts, &module))?,
             _ => panic!("only foreign functions/types allowed for now"),
         };
 
diff --git a/crates/macro/Cargo.toml b/crates/macro/Cargo.toml
index 2f46fc16..c262d0c2 100644
--- a/crates/macro/Cargo.toml
+++ b/crates/macro/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-macro"
-version = "0.2.17"
+version = "0.2.19"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/macro"
@@ -18,5 +18,5 @@ spans = ["wasm-bindgen-macro-support/spans"]
 xxx_debug_only_print_generated_code = []
 
 [dependencies]
-wasm-bindgen-macro-support = { path = "../macro-support", version = "=0.2.17" }
+wasm-bindgen-macro-support = { path = "../macro-support", version = "=0.2.19" }
 quote = "0.6"
diff --git a/crates/macro/ui-tests/attribute-fails-to-parse.rs b/crates/macro/ui-tests/attribute-fails-to-parse.rs
index 514876fa..d58395e9 100644
--- a/crates/macro/ui-tests/attribute-fails-to-parse.rs
+++ b/crates/macro/ui-tests/attribute-fails-to-parse.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/crates/macro/ui-tests/attribute-fails-to-parse.stderr b/crates/macro/ui-tests/attribute-fails-to-parse.stderr
index dbe5f5d5..eb7960eb 100644
--- a/crates/macro/ui-tests/attribute-fails-to-parse.stderr
+++ b/crates/macro/ui-tests/attribute-fails-to-parse.stderr
@@ -1,7 +1,7 @@
 error: error parsing #[wasm_bindgen] attribute options: failed to parse anything
- --> $DIR/attribute-fails-to-parse.rs:7:16
+ --> $DIR/attribute-fails-to-parse.rs:5:16
   |
-7 | #[wasm_bindgen(nonsense)]
+5 | #[wasm_bindgen(nonsense)]
   |                ^^^^^^^^
 
 error: aborting due to previous error
diff --git a/crates/macro/ui-tests/bad-signatures.rs b/crates/macro/ui-tests/bad-signatures.rs
index 7e414149..561d909b 100644
--- a/crates/macro/ui-tests/bad-signatures.rs
+++ b/crates/macro/ui-tests/bad-signatures.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/crates/macro/ui-tests/bad-signatures.stderr b/crates/macro/ui-tests/bad-signatures.stderr
index 0a8466ab..b36e8947 100644
--- a/crates/macro/ui-tests/bad-signatures.stderr
+++ b/crates/macro/ui-tests/bad-signatures.stderr
@@ -1,19 +1,19 @@
 error: cannot return a borrowed ref with #[wasm_bindgen]
- --> $DIR/bad-signatures.rs:8:17
+ --> $DIR/bad-signatures.rs:6:17
   |
-8 | pub fn foo() -> &u32 {}
+6 | pub fn foo() -> &u32 {}
   |                 ^^^^
 
 error: unsupported pattern in #[wasm_bindgen] imported function
-  --> $DIR/bad-signatures.rs:12:12
+  --> $DIR/bad-signatures.rs:10:12
    |
-12 |     fn foo(Foo(x): Foo);
+10 |     fn foo(Foo(x): Foo);
    |            ^^^^^^
 
 error: cannot return references in #[wasm_bindgen] imports yet
-  --> $DIR/bad-signatures.rs:14:17
+  --> $DIR/bad-signatures.rs:12:17
    |
-14 |     fn foo() -> &u32;
+12 |     fn foo() -> &u32;
    |                 ^^^^
 
 error: aborting due to 3 previous errors
diff --git a/crates/macro/ui-tests/invalid-attr.rs b/crates/macro/ui-tests/invalid-attr.rs
index 74c95a97..9496c8a3 100644
--- a/crates/macro/ui-tests/invalid-attr.rs
+++ b/crates/macro/ui-tests/invalid-attr.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/crates/macro/ui-tests/invalid-attr.stderr b/crates/macro/ui-tests/invalid-attr.stderr
index a35479da..ee918ec5 100644
--- a/crates/macro/ui-tests/invalid-attr.stderr
+++ b/crates/macro/ui-tests/invalid-attr.stderr
@@ -1,19 +1,19 @@
 error: error parsing #[wasm_bindgen] attribute options: failed to parse anything
- --> $DIR/invalid-attr.rs:7:16
+ --> $DIR/invalid-attr.rs:5:16
   |
-7 | #[wasm_bindgen(x)]
+5 | #[wasm_bindgen(x)]
   |                ^
 
 error: error parsing #[wasm_bindgen] attribute options: failed to parse anything
-  --> $DIR/invalid-attr.rs:12:20
+  --> $DIR/invalid-attr.rs:10:20
    |
-12 |     #[wasm_bindgen(y)]
+10 |     #[wasm_bindgen(y)]
    |                    ^
 
 error: malformed #[wasm_bindgen] attribute
-  --> $DIR/invalid-attr.rs:15:5
+  --> $DIR/invalid-attr.rs:13:5
    |
-15 |     #[wasm_bindgen {  }]
+13 |     #[wasm_bindgen {  }]
    |     ^^^^^^^^^^^^^^^^^^^^
 
 error: aborting due to 3 previous errors
diff --git a/crates/macro/ui-tests/invalid-enums.rs b/crates/macro/ui-tests/invalid-enums.rs
index 44c983c0..1be6bbd0 100644
--- a/crates/macro/ui-tests/invalid-enums.rs
+++ b/crates/macro/ui-tests/invalid-enums.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/crates/macro/ui-tests/invalid-enums.stderr b/crates/macro/ui-tests/invalid-enums.stderr
index 06da7570..96b117df 100644
--- a/crates/macro/ui-tests/invalid-enums.stderr
+++ b/crates/macro/ui-tests/invalid-enums.stderr
@@ -1,25 +1,25 @@
 error: only public enums are allowed with #[wasm_bindgen]
- --> $DIR/invalid-enums.rs:8:1
+ --> $DIR/invalid-enums.rs:6:1
   |
-8 | enum A {}
+6 | enum A {}
   | ^^^^^^^^^
 
 error: only C-Style enums allowed with #[wasm_bindgen]
-  --> $DIR/invalid-enums.rs:12:6
+  --> $DIR/invalid-enums.rs:10:6
    |
-12 |     D(u32),
+10 |     D(u32),
    |      ^^^^^
 
 error: enums with #[wasm_bidngen] may only have number literal values
-  --> $DIR/invalid-enums.rs:17:9
+  --> $DIR/invalid-enums.rs:15:9
    |
-17 |     X = 1 + 3,
+15 |     X = 1 + 3,
    |         ^^^^^
 
 error: enums with #[wasm_bindgen] can only support numbers that can be represented as u32
-  --> $DIR/invalid-enums.rs:22:9
+  --> $DIR/invalid-enums.rs:20:9
    |
-22 |     X = 4294967296,
+20 |     X = 4294967296,
    |         ^^^^^^^^^^
 
 error: aborting due to 4 previous errors
diff --git a/crates/macro/ui-tests/invalid-imports.rs b/crates/macro/ui-tests/invalid-imports.rs
index 9ed8d84a..969afb9e 100644
--- a/crates/macro/ui-tests/invalid-imports.rs
+++ b/crates/macro/ui-tests/invalid-imports.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/crates/macro/ui-tests/invalid-imports.stderr b/crates/macro/ui-tests/invalid-imports.stderr
index f2574c45..2dd15706 100644
--- a/crates/macro/ui-tests/invalid-imports.stderr
+++ b/crates/macro/ui-tests/invalid-imports.stderr
@@ -1,91 +1,91 @@
 error: it is currently not sound to use lifetimes in function signatures
-  --> $DIR/invalid-imports.rs:11:16
-   |
-11 |     fn f() -> &'static u32;
-   |                ^^^^^^^
+ --> $DIR/invalid-imports.rs:9:16
+  |
+9 |     fn f() -> &'static u32;
+  |                ^^^^^^^
 
 error: imported methods must have at least one argument
-  --> $DIR/invalid-imports.rs:14:5
+  --> $DIR/invalid-imports.rs:12:5
    |
-14 |     fn f1();
+12 |     fn f1();
    |     ^^^^^^^^
 
 error: first argument of method must be a shared reference
-  --> $DIR/invalid-imports.rs:16:14
+  --> $DIR/invalid-imports.rs:14:14
    |
-16 |     fn f2(x: u32);
+14 |     fn f2(x: u32);
    |              ^^^
 
 error: first argument of method must be a path
-  --> $DIR/invalid-imports.rs:18:14
+  --> $DIR/invalid-imports.rs:16:14
    |
-18 |     fn f3(x: &&u32);
+16 |     fn f3(x: &&u32);
    |              ^^^^^
 
 error: multi-segment paths are not supported yet
-  --> $DIR/invalid-imports.rs:20:15
+  --> $DIR/invalid-imports.rs:18:15
    |
-20 |     fn f4(x: &foo::Bar);
+18 |     fn f4(x: &foo::Bar);
    |               ^^^^^^^^
 
 error: global paths are not supported yet
+  --> $DIR/invalid-imports.rs:20:15
+   |
+20 |     fn f4(x: &::Bar);
+   |               ^^^^^
+
+error: paths with type parameters are not supported yet
   --> $DIR/invalid-imports.rs:22:15
    |
-22 |     fn f4(x: &::Bar);
-   |               ^^^^^
+22 |     fn f4(x: &Bar<T>);
+   |               ^^^^^^
 
 error: paths with type parameters are not supported yet
   --> $DIR/invalid-imports.rs:24:15
    |
-24 |     fn f4(x: &Bar<T>);
-   |               ^^^^^^
-
-error: paths with type parameters are not supported yet
-  --> $DIR/invalid-imports.rs:26:15
-   |
-26 |     fn f4(x: &Fn(T));
+24 |     fn f4(x: &Fn(T));
    |               ^^^^^
 
 error: constructor returns must be bare types
-  --> $DIR/invalid-imports.rs:29:5
+  --> $DIR/invalid-imports.rs:27:5
    |
-29 |     fn f();
+27 |     fn f();
    |     ^^^^^^^
 
 error: global paths are not supported yet
-  --> $DIR/invalid-imports.rs:31:15
+  --> $DIR/invalid-imports.rs:29:15
    |
-31 |     fn f() -> ::Bar;
+29 |     fn f() -> ::Bar;
    |               ^^^^^
 
 error: return value of constructor must be a bare path
-  --> $DIR/invalid-imports.rs:33:5
+  --> $DIR/invalid-imports.rs:31:5
    |
-33 |     fn f() -> &Bar;
+31 |     fn f() -> &Bar;
    |     ^^^^^^^^^^^^^^^
 
+error: must be Result<...>
+  --> $DIR/invalid-imports.rs:34:15
+   |
+34 |     fn f() -> u32;
+   |               ^^^
+
 error: must be Result<...>
   --> $DIR/invalid-imports.rs:36:15
    |
-36 |     fn f() -> u32;
-   |               ^^^
-
-error: must be Result<...>
-  --> $DIR/invalid-imports.rs:38:15
-   |
-38 |     fn f() -> &u32;
+36 |     fn f() -> &u32;
    |               ^^^^
 
 error: must have at least one generic parameter
-  --> $DIR/invalid-imports.rs:40:15
+  --> $DIR/invalid-imports.rs:38:15
    |
-40 |     fn f() -> Result<>;
+38 |     fn f() -> Result<>;
    |               ^^^^^^^^
 
 error: it is currently not sound to use lifetimes in function signatures
-  --> $DIR/invalid-imports.rs:42:22
+  --> $DIR/invalid-imports.rs:40:22
    |
-42 |     fn f() -> Result<'a>;
+40 |     fn f() -> Result<'a>;
    |                      ^^
 
 error: aborting due to 15 previous errors
diff --git a/crates/macro/ui-tests/invalid-items.rs b/crates/macro/ui-tests/invalid-items.rs
index 851800d3..e1efac92 100644
--- a/crates/macro/ui-tests/invalid-items.rs
+++ b/crates/macro/ui-tests/invalid-items.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/crates/macro/ui-tests/invalid-items.stderr b/crates/macro/ui-tests/invalid-items.stderr
index 6040cf4d..d0fe8f32 100644
--- a/crates/macro/ui-tests/invalid-items.stderr
+++ b/crates/macro/ui-tests/invalid-items.stderr
@@ -1,67 +1,67 @@
 error: can only #[wasm_bindgen] public functions
- --> $DIR/invalid-items.rs:8:1
+ --> $DIR/invalid-items.rs:6:1
   |
-8 | fn foo() {}
+6 | fn foo() {}
   | ^^^^^^^^^^^
 
 error: can only #[wasm_bindgen] safe functions
-  --> $DIR/invalid-items.rs:11:5
-   |
-11 | pub unsafe fn foo1() {}
-   |     ^^^^^^
+ --> $DIR/invalid-items.rs:9:5
+  |
+9 | pub unsafe fn foo1() {}
+  |     ^^^^^^
 
 error: can only #[wasm_bindgen] non-const functions
-  --> $DIR/invalid-items.rs:14:5
+  --> $DIR/invalid-items.rs:12:5
    |
-14 | pub const fn foo2() {}
+12 | pub const fn foo2() {}
    |     ^^^^^
 
 error: structs with #[wasm_bindgen] cannot have lifetime or type parameters currently
-  --> $DIR/invalid-items.rs:17:11
+  --> $DIR/invalid-items.rs:15:11
    |
-17 | struct Foo<T>(T);
+15 | struct Foo<T>(T);
    |           ^^^
 
 error: cannot import mutable globals yet
-  --> $DIR/invalid-items.rs:21:12
+  --> $DIR/invalid-items.rs:19:12
    |
-21 |     static mut FOO: u32;
+19 |     static mut FOO: u32;
    |            ^^^
 
 error: can't #[wasm_bindgen] variadic functions
-  --> $DIR/invalid-items.rs:23:25
+  --> $DIR/invalid-items.rs:21:25
    |
-23 |     pub fn foo3(x: i32, ...);
+21 |     pub fn foo3(x: i32, ...);
    |                         ^^^
 
 error: only foreign mods with the `C` ABI are allowed
-  --> $DIR/invalid-items.rs:27:8
+  --> $DIR/invalid-items.rs:25:8
    |
-27 | extern "system" {
+25 | extern "system" {
    |        ^^^^^^^^
 
+error: can't #[wasm_bindgen] functions with lifetime or type parameters
+  --> $DIR/invalid-items.rs:29:12
+   |
+29 | pub fn foo4<T>() {}
+   |            ^^^
+
 error: can't #[wasm_bindgen] functions with lifetime or type parameters
   --> $DIR/invalid-items.rs:31:12
    |
-31 | pub fn foo4<T>() {}
-   |            ^^^
+31 | pub fn foo5<'a>() {}
+   |            ^^^^
 
 error: can't #[wasm_bindgen] functions with lifetime or type parameters
   --> $DIR/invalid-items.rs:33:12
    |
-33 | pub fn foo5<'a>() {}
-   |            ^^^^
-
-error: can't #[wasm_bindgen] functions with lifetime or type parameters
-  --> $DIR/invalid-items.rs:35:12
-   |
-35 | pub fn foo6<'a, T>() {}
+33 | pub fn foo6<'a, T>() {}
    |            ^^^^^^^
 
 error: #[wasm_bindgen] can only be applied to a function, struct, enum, impl, or extern block
-  --> $DIR/invalid-items.rs:38:1
+  --> $DIR/invalid-items.rs:36:1
    |
-38 | trait X {}
+36 | trait X {}
    | ^^^^^^^^^^
 
 error: aborting due to 11 previous errors
diff --git a/crates/macro/ui-tests/invalid-methods.rs b/crates/macro/ui-tests/invalid-methods.rs
index 9fcf3f4b..ef7fae01 100644
--- a/crates/macro/ui-tests/invalid-methods.rs
+++ b/crates/macro/ui-tests/invalid-methods.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/crates/macro/ui-tests/invalid-methods.stderr b/crates/macro/ui-tests/invalid-methods.stderr
index 9ac1b887..7e16053e 100644
--- a/crates/macro/ui-tests/invalid-methods.stderr
+++ b/crates/macro/ui-tests/invalid-methods.stderr
@@ -1,61 +1,61 @@
 error: #[wasm_bindgen] default impls are not supported
-  --> $DIR/invalid-methods.rs:11:1
-   |
-11 | default impl A {
-   | ^^^^^^^
+ --> $DIR/invalid-methods.rs:9:1
+  |
+9 | default impl A {
+  | ^^^^^^^
 
 error: #[wasm_bindgen] unsafe impls are not supported
-  --> $DIR/invalid-methods.rs:15:1
+  --> $DIR/invalid-methods.rs:13:1
    |
-15 | unsafe impl A {
+13 | unsafe impl A {
    | ^^^^^^
 
 error: #[wasm_bindgen] trait impls are not supported
-  --> $DIR/invalid-methods.rs:19:6
+  --> $DIR/invalid-methods.rs:17:6
    |
-19 | impl Clone for A {
+17 | impl Clone for A {
    |      ^^^^^
 
 error: #[wasm_bindgen] generic impls aren't supported
-  --> $DIR/invalid-methods.rs:23:5
+  --> $DIR/invalid-methods.rs:21:5
    |
-23 | impl<T> A {
+21 | impl<T> A {
    |     ^^^
 
 error: unsupported self type in #[wasm_bindgen] impl
-  --> $DIR/invalid-methods.rs:27:6
+  --> $DIR/invalid-methods.rs:25:6
    |
-27 | impl &'static A {
+25 | impl &'static A {
    |      ^^^^^^^^^^
 
 error: const definitions aren't supported with #[wasm_bindgen]
-  --> $DIR/invalid-methods.rs:34:5
+  --> $DIR/invalid-methods.rs:32:5
    |
-34 |     const X: u32 = 3;
+32 |     const X: u32 = 3;
    |     ^^^^^^^^^^^^^^^^^
 
 error: type definitions in impls aren't supported with #[wasm_bindgen]
-  --> $DIR/invalid-methods.rs:35:5
+  --> $DIR/invalid-methods.rs:33:5
    |
-35 |     type Y = u32;
+33 |     type Y = u32;
    |     ^^^^^^^^^^^^^
 
 error: macros in impls aren't supported
-  --> $DIR/invalid-methods.rs:36:5
+  --> $DIR/invalid-methods.rs:34:5
    |
-36 |     x!();
+34 |     x!();
    |     ^^^^^
 
 error: can only #[wasm_bindgen] non-const functions
-  --> $DIR/invalid-methods.rs:41:9
+  --> $DIR/invalid-methods.rs:39:9
    |
-41 |     pub const fn foo() {}
+39 |     pub const fn foo() {}
    |         ^^^^^
 
 error: can only bindgen safe functions
-  --> $DIR/invalid-methods.rs:42:9
+  --> $DIR/invalid-methods.rs:40:9
    |
-42 |     pub unsafe fn foo() {}
+40 |     pub unsafe fn foo() {}
    |         ^^^^^^
 
 error: aborting due to 10 previous errors
diff --git a/crates/macro/ui-tests/non-public-function.rs b/crates/macro/ui-tests/non-public-function.rs
index 8f0b117d..b318ea78 100644
--- a/crates/macro/ui-tests/non-public-function.rs
+++ b/crates/macro/ui-tests/non-public-function.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/crates/macro/ui-tests/non-public-function.stderr b/crates/macro/ui-tests/non-public-function.stderr
index 510dc537..517ebe7c 100644
--- a/crates/macro/ui-tests/non-public-function.stderr
+++ b/crates/macro/ui-tests/non-public-function.stderr
@@ -1,7 +1,7 @@
 error: can only #[wasm_bindgen] public functions
- --> $DIR/non-public-function.rs:8:1
+ --> $DIR/non-public-function.rs:6:1
   |
-8 | fn foo() {}
+6 | fn foo() {}
   | ^^^^^^^^^^^
 
 error: aborting due to previous error
diff --git a/crates/shared/Cargo.toml b/crates/shared/Cargo.toml
index 9b6d9b80..e82dd453 100644
--- a/crates/shared/Cargo.toml
+++ b/crates/shared/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-shared"
-version = "0.2.17"
+version = "0.2.19"
 authors = ["The wasm-bindgen Developers"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/shared"
diff --git a/crates/shared/src/lib.rs b/crates/shared/src/lib.rs
index af9205ef..b2250d6d 100644
--- a/crates/shared/src/lib.rs
+++ b/crates/shared/src/lib.rs
@@ -3,7 +3,9 @@
 #[macro_use]
 extern crate serde_derive;
 
-pub const SCHEMA_VERSION: &str = "8";
+// The schema is so unstable right now we just force it to change whenever this
+// package's version changes, which happens on all publishes.
+pub const SCHEMA_VERSION: &str = env!("CARGO_PKG_VERSION");
 
 #[derive(Deserialize)]
 pub struct ProgramOnlySchema {
@@ -49,7 +51,7 @@ pub struct ImportFunction {
 
 #[derive(Deserialize, Serialize)]
 pub struct MethodData {
-    pub class: String,
+    pub class: Option<String>,
     pub kind: MethodKind,
 }
 
diff --git a/crates/test-macro/Cargo.toml b/crates/test-macro/Cargo.toml
index 14271bb4..da68c9ba 100644
--- a/crates/test-macro/Cargo.toml
+++ b/crates/test-macro/Cargo.toml
@@ -1,13 +1,13 @@
 [package]
 name = "wasm-bindgen-test-macro"
-version = "0.2.17"
+version = "0.2.19"
 authors = ["The wasm-bindgen Developers"]
 description = "Internal testing macro for wasm-bindgen"
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rustwasm/wasm-bindgen"
 
 [dependencies]
-proc-macro2 = { version = "0.4", features = ['nightly'] }
+proc-macro2 = "0.4"
 quote = "0.6"
 
 [lib]
diff --git a/crates/test/Cargo.toml b/crates/test/Cargo.toml
index 274cae20..6d04c3b7 100644
--- a/crates/test/Cargo.toml
+++ b/crates/test/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasm-bindgen-test"
-version = "0.2.17"
+version = "0.2.19"
 authors = ["The wasm-bindgen Developers"]
 description = "Internal testing crate for wasm-bindgen"
 license = "MIT/Apache-2.0"
@@ -9,11 +9,11 @@ repository = "https://github.com/rustwasm/wasm-bindgen"
 [dependencies]
 console_error_panic_hook = '0.1'
 futures = "0.1"
-js-sys = { path = '../js-sys', version = '0.2.1' }
+js-sys = { path = '../js-sys', version = '0.2.4' }
 scoped-tls = "0.1"
-wasm-bindgen = { path = '../..', version = '0.2.17' }
-wasm-bindgen-futures = { path = '../futures', version = '0.2.17' }
-wasm-bindgen-test-macro = { path = '../test-macro', version = '=0.2.17' }
+wasm-bindgen = { path = '../..', version = '0.2.19' }
+wasm-bindgen-futures = { path = '../futures', version = '0.2.19' }
+wasm-bindgen-test-macro = { path = '../test-macro', version = '=0.2.19' }
 
 [lib]
 test = false
diff --git a/crates/test/README.md b/crates/test/README.md
index 4ce08be6..ef5bd8e6 100644
--- a/crates/test/README.md
+++ b/crates/test/README.md
@@ -38,8 +38,6 @@ ton of documentation just yet, but a taste of how it works is:
 
   ```rust
   // in tests/wasm.rs
-  #![feature(use_extern_macros)]
-
   extern crate wasm_bindgen_test;
 
   use wasm_bindgen_test::*;
diff --git a/crates/test/sample/src/lib.rs b/crates/test/sample/src/lib.rs
index b45cedf8..02b0a2e3 100644
--- a/crates/test/sample/src/lib.rs
+++ b/crates/test/sample/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 #[macro_use]
 extern crate futures;
 extern crate js_sys;
diff --git a/crates/test/sample/tests/browser.rs b/crates/test/sample/tests/browser.rs
index 5d5b36f8..0f2bcd4c 100644
--- a/crates/test/sample/tests/browser.rs
+++ b/crates/test/sample/tests/browser.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate futures;
 extern crate sample;
 extern crate wasm_bindgen;
diff --git a/crates/test/sample/tests/node.rs b/crates/test/sample/tests/node.rs
index 84d87170..e9cb596c 100644
--- a/crates/test/sample/tests/node.rs
+++ b/crates/test/sample/tests/node.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate futures;
 extern crate sample;
 extern crate wasm_bindgen;
diff --git a/crates/test/src/lib.rs b/crates/test/src/lib.rs
index 99326b17..477e743c 100644
--- a/crates/test/src/lib.rs
+++ b/crates/test/src/lib.rs
@@ -2,7 +2,6 @@
 //!
 //! More documentation can be found in the README for this crate!
 
-#![feature(use_extern_macros)]
 #![deny(missing_docs)]
 
 extern crate console_error_panic_hook;
diff --git a/crates/wasm-interpreter/Cargo.toml b/crates/wasm-interpreter/Cargo.toml
new file mode 100644
index 00000000..7857b47a
--- /dev/null
+++ b/crates/wasm-interpreter/Cargo.toml
@@ -0,0 +1,17 @@
+[package]
+name = "wasm-bindgen-wasm-interpreter"
+version = "0.2.19"
+authors = ["The wasm-bindgen Developers"]
+license = "MIT/Apache-2.0"
+repository = "https://github.com/rustwasm/wasm-bindgen/tree/master/crates/wasm-interpreter"
+homepage = "https://rustwasm.github.io/wasm-bindgen/"
+documentation = "https://docs.rs/wasm-bindgen-wasm-interpreter"
+description = """
+Micro-interpreter optimized for wasm-bindgen's use case
+"""
+
+[dependencies]
+parity-wasm = "0.32"
+
+[dev-dependencies]
+tempfile = "3"
diff --git a/crates/wasm-interpreter/src/lib.rs b/crates/wasm-interpreter/src/lib.rs
new file mode 100644
index 00000000..da397f3d
--- /dev/null
+++ b/crates/wasm-interpreter/src/lib.rs
@@ -0,0 +1,243 @@
+//! A tiny and incomplete wasm interpreter
+//!
+//! This module contains a tiny and incomplete wasm interpreter built on top of
+//! `parity-wasm`'s module structure. Each `Interpreter` contains some state
+//! about the execution of a wasm instance. The "incomplete" part here is
+//! related to the fact that this is *only* used to execute the various
+//! descriptor functions for wasm-bindgen.
+//!
+//! As a recap, the wasm-bindgen macro generate "descriptor functions" which
+//! basically as a mapping of rustc's trait resolution in executable code. This
+//! allows us to detect, after the macro is invoke, what trait selection did and
+//! what types of functions look like. By executing descriptor functions they'll
+//! each invoke a known import (with only one argument) some number of times,
+//! which gives us a list of `u32` values to then decode.
+//!
+//! The interpreter here is only geared towards this one exact use case, so it's
+//! quite small and likely not extra-efficient.
+
+#![deny(missing_docs)]
+
+extern crate parity_wasm;
+
+use std::collections::HashMap;
+
+use parity_wasm::elements::*;
+
+/// A ready-to-go interpreter of a wasm module.
+///
+/// An interpreter currently represents effectively cached state. It is reused
+/// between calls to `interpret` and is precomputed from a `Module`. It houses
+/// state like the wasm stack, wasm memory, etc.
+#[derive(Default)]
+pub struct Interpreter {
+    // Number of imported functions in the wasm module (used in index
+    // calculations)
+    imports: usize,
+
+    // Function index of the `__wbindgen_describe` imported function. We special
+    // case this to know when the environment's imported function is called.
+    describe_idx: Option<u32>,
+
+    // A mapping of string names to the function index, filled with all exported
+    // functions.
+    name_map: HashMap<String, u32>,
+
+    // The numerical index of the code section in the wasm module, indexed into
+    // the module's list of sections.
+    code_idx: Option<usize>,
+
+    // The current stack pointer (global 0) and wasm memory (the stack). Only
+    // used in a limited capacity.
+    sp: i32,
+    mem: Vec<i32>,
+
+    // The wasm stack. Note how it's just `i32` which is intentional, we don't
+    // support other types.
+    stack: Vec<i32>,
+
+    // The descriptor which we're assembling, a list of `u32` entries. This is
+    // very specific to wasm-bindgen and is the purpose for the existence of
+    // this module.
+    descriptor: Vec<u32>,
+}
+
+impl Interpreter {
+    /// Creates a new interpreter from a provided `Module`, precomputing all
+    /// information necessary to interpret further.
+    ///
+    /// Note that the `module` passed in to this function must be the same as
+    /// the `module` passed to `interpret` below.
+    pub fn new(module: &Module) -> Interpreter {
+        let mut ret = Interpreter::default();
+
+        // The descriptor functions shouldn't really use all that much memory
+        // (the LLVM call stack, now the wasm stack). To handle that let's give
+        // our selves a little bit of memory and set the stack pointer (global
+        // 0) to the top.
+        ret.mem = vec![0; 0x100];
+        ret.sp = ret.mem.len() as i32;
+
+        // Figure out where our code section, if any, is.
+        for (i, s) in module.sections().iter().enumerate() {
+            match s {
+                Section::Code(_) => ret.code_idx = Some(i),
+                _ => {}
+            }
+        }
+
+        // Figure out where the `__wbindgen_describe` imported function is, if
+        // it exists. We'll special case calls to this function as our
+        // interpretation should only invoke this function as an imported
+        // function.
+        if let Some(i) = module.import_section() {
+            ret.imports = i.functions();
+            let mut idx = 0;
+            for entry in i.entries() {
+                match entry.external() {
+                    External::Function(_) => idx += 1,
+                    _ => continue,
+                }
+                if entry.module() != "__wbindgen_placeholder__" {
+                    continue
+                }
+                if entry.field() != "__wbindgen_describe" {
+                    continue
+                }
+                ret.describe_idx = Some(idx - 1 as u32);
+            }
+        }
+
+        // Build up the mapping of exported functions to function indices.
+        if let Some(e) = module.export_section() {
+            for e in e.entries() {
+                let i = match e.internal() {
+                    Internal::Function(i) => i,
+                    _ => continue,
+                };
+                ret.name_map.insert(e.field().to_string(), *i);
+            }
+        }
+
+        return ret
+    }
+
+    /// Interprets the execution of the descriptor function `func`.
+    ///
+    /// This function will execute `func` in the `module` provided. Note that
+    /// the `module` provided here must be the same as the one passed to `new`
+    /// when this `Interpreter` was constructed.
+    ///
+    /// The `func` must be a wasm-bindgen descriptor function meaning that it
+    /// doesn't do anything like use floats or i64. Instead all it should do is
+    /// call other functions, sometimes some stack pointer manipulation, and
+    /// then call the one imported `__wbindgen_describe` function. Anything else
+    /// will cause this interpreter to panic.
+    ///
+    /// When the descriptor has finished running the assembled descriptor list
+    /// is returned. The descriptor returned can then be re-parsed into an
+    /// actual `Descriptor` in the cli-support crate.
+    ///
+    /// # Return value
+    ///
+    /// Returns `Some` if `func` was found in the `module` and `None` if it was
+    /// not found in the `module`.
+    pub fn interpret(&mut self, func: &str, module: &Module) -> Option<&[u32]> {
+        self.descriptor.truncate(0);
+        let idx = *self.name_map.get(func)?;
+        let code = match &module.sections()[self.code_idx.unwrap()] {
+            Section::Code(s) => s,
+            _ => panic!(),
+        };
+
+        // We should have a blank wasm and LLVM stack at both the start and end
+        // of the call.
+        assert_eq!(self.sp, self.mem.len() as i32);
+        assert_eq!(self.stack.len(), 0);
+        self.call(idx, code);
+        assert_eq!(self.stack.len(), 0);
+        assert_eq!(self.sp, self.mem.len() as i32);
+        Some(&self.descriptor)
+    }
+
+    fn call(&mut self, idx: u32, code: &CodeSection) {
+        use parity_wasm::elements::Instruction::*;
+
+        let idx = idx as usize;
+        assert!(idx >= self.imports); // can't call imported functions
+        let body = &code.bodies()[idx - self.imports];
+
+        // Allocate space for our call frame's local variables. All local
+        // variables should be of the `i32` type.
+        assert!(body.locals().len() <= 1, "too many local types");
+        let locals = body.locals()
+            .get(0)
+            .map(|i| {
+                assert_eq!(i.value_type(), ValueType::I32);
+                i.count()
+            })
+            .unwrap_or(0);
+        let mut locals = vec![0; locals as usize];
+
+        // Actual interpretation loop! We keep track of our stack's length to
+        // recover it as part of the `Return` instruction, and otherwise this is
+        // a pretty straightforward interpretation loop.
+        let before = self.stack.len();
+        for instr in body.code().elements() {
+            match instr {
+                I32Const(x) => self.stack.push(*x),
+                SetLocal(i) => locals[*i as usize] = self.stack.pop().unwrap(),
+                GetLocal(i) => self.stack.push(locals[*i as usize]),
+                Call(idx) => {
+                    // If this function is calling the `__wbindgen_describe`
+                    // function, which we've precomputed the index for, then
+                    // it's telling us about the next `u32` element in the
+                    // descriptor to return. We "call" the imported function
+                    // here by directly inlining it.
+                    //
+                    // Otherwise this is a normal call so we recurse.
+                    if Some(*idx) == self.describe_idx {
+                        self.descriptor.push(self.stack.pop().unwrap() as u32);
+                    } else {
+                        self.call(*idx, code);
+                    }
+                }
+                GetGlobal(0) => self.stack.push(self.sp),
+                SetGlobal(0) => self.sp = self.stack.pop().unwrap(),
+                I32Sub => {
+                    let b = self.stack.pop().unwrap();
+                    let a = self.stack.pop().unwrap();
+                    self.stack.push(a - b);
+                }
+                I32Add => {
+                    let a = self.stack.pop().unwrap();
+                    let b = self.stack.pop().unwrap();
+                    self.stack.push(a + b);
+                }
+                I32Store(/* align = */ 2, offset) => {
+                    let val = self.stack.pop().unwrap();
+                    let addr = self.stack.pop().unwrap() as u32;
+                    self.mem[((addr + *offset) as usize) / 4] = val;
+                }
+                I32Load(/* align = */ 2, offset) => {
+                    let addr = self.stack.pop().unwrap() as u32;
+                    self.stack.push(self.mem[((addr + *offset) as usize) / 4]);
+                }
+                Return => self.stack.truncate(before),
+                End => break,
+
+                // All other instructions shouldn't be used by our various
+                // descriptor functions. LLVM optimizations may mean that some
+                // of the above instructions aren't actually needed either, but
+                // the above instructions have empirically been required when
+                // executing our own test suite in wasm-bindgen.
+                //
+                // Note that LLVM may change over time to generate new
+                // instructions in debug mode, and we'll have to react to those
+                // sorts of changes as they arise.
+                s => panic!("unknown instruction {:?}", s),
+            }
+        }
+        assert_eq!(self.stack.len(), before);
+    }
+}
diff --git a/crates/wasm-interpreter/tests/smoke.rs b/crates/wasm-interpreter/tests/smoke.rs
new file mode 100644
index 00000000..f2fe894d
--- /dev/null
+++ b/crates/wasm-interpreter/tests/smoke.rs
@@ -0,0 +1,232 @@
+extern crate parity_wasm;
+extern crate tempfile;
+extern crate wasm_bindgen_wasm_interpreter;
+
+use std::fs;
+use std::process::Command;
+
+use wasm_bindgen_wasm_interpreter::Interpreter;
+
+fn interpret(wat: &str, name: &str, result: Option<&[u32]>) {
+    let input = tempfile::NamedTempFile::new().unwrap();
+    let output = tempfile::NamedTempFile::new().unwrap();
+    fs::write(input.path(), wat).unwrap();
+    let status = Command::new("wat2wasm")
+        .arg(input.path())
+        .arg("-o").arg(output.path())
+        .status()
+        .unwrap();
+    println!("status: {}", status);
+    assert!(status.success());
+    let module = parity_wasm::deserialize_file(output.path()).unwrap();
+    let mut i = Interpreter::new(&module);
+    assert_eq!(i.interpret(name, &module), result);
+}
+
+#[test]
+fn smoke() {
+    let wat = r#"
+        (module
+            (export "foo" (func $foo))
+
+            (func $foo)
+        )
+    "#;
+    interpret(wat, "foo", Some(&[]));
+    interpret(wat, "bar", None);
+
+    let wat = r#"
+        (module
+            (import "__wbindgen_placeholder__" "__wbindgen_describe"
+              (func $__wbindgen_describe (param i32)))
+
+            (func $foo
+                i32.const 1
+                call $__wbindgen_describe
+            )
+
+            (export "foo" (func $foo))
+        )
+    "#;
+    interpret(wat, "foo", Some(&[1]));
+}
+
+#[test]
+fn locals() {
+    let wat = r#"
+        (module
+            (import "__wbindgen_placeholder__" "__wbindgen_describe"
+              (func $__wbindgen_describe (param i32)))
+
+            (func $foo
+                (local i32)
+                i32.const 2
+                set_local 0
+                get_local 0
+                call $__wbindgen_describe
+            )
+
+            (export "foo" (func $foo))
+        )
+    "#;
+    interpret(wat, "foo", Some(&[2]));
+}
+
+#[test]
+fn globals() {
+    let wat = r#"
+        (module
+            (import "__wbindgen_placeholder__" "__wbindgen_describe"
+              (func $__wbindgen_describe (param i32)))
+
+            (global i32 (i32.const 0))
+
+            (func $foo
+                (local i32)
+                get_global 0
+                set_local 0
+                get_local 0
+                call $__wbindgen_describe
+                get_local 0
+                set_global 0
+            )
+
+            (export "foo" (func $foo))
+        )
+    "#;
+    interpret(wat, "foo", Some(&[256]));
+}
+
+#[test]
+fn arithmetic() {
+    let wat = r#"
+        (module
+            (import "__wbindgen_placeholder__" "__wbindgen_describe"
+              (func $__wbindgen_describe (param i32)))
+
+            (func $foo
+                i32.const 1
+                i32.const 2
+                i32.add
+                call $__wbindgen_describe
+                i32.const 2
+                i32.const 1
+                i32.sub
+                call $__wbindgen_describe
+            )
+
+            (export "foo" (func $foo))
+        )
+    "#;
+    interpret(wat, "foo", Some(&[3, 1]));
+}
+
+#[test]
+fn return_early() {
+    let wat = r#"
+        (module
+            (import "__wbindgen_placeholder__" "__wbindgen_describe"
+              (func $__wbindgen_describe (param i32)))
+
+            (func $foo
+                i32.const 1
+                i32.const 2
+                call $__wbindgen_describe
+                return
+            )
+
+            (export "foo" (func $foo))
+        )
+    "#;
+    interpret(wat, "foo", Some(&[2]));
+}
+
+#[test]
+fn loads_and_stores() {
+    let wat = r#"
+        (module
+            (import "__wbindgen_placeholder__" "__wbindgen_describe"
+              (func $__wbindgen_describe (param i32)))
+
+            (global i32 (i32.const 0))
+            (memory 1)
+
+            (func $foo
+                (local i32)
+
+                ;; decrement the stack pointer, setting our local to the
+                ;; lowest address of our stack
+                get_global 0
+                i32.const 16
+                i32.sub
+                set_local 0
+                get_local 0
+                set_global 0
+
+                ;; store 1 at fp+0
+                get_local 0
+                i32.const 1
+                i32.store offset=0
+
+                ;; store 2 at fp+4
+                get_local 0
+                i32.const 2
+                i32.store offset=4
+
+                ;; store 3 at fp+8
+                get_local 0
+                i32.const 3
+                i32.store offset=8
+
+                ;; load fp+0 and call
+                get_local 0
+                i32.load offset=0
+                call $__wbindgen_describe
+
+                ;; load fp+4 and call
+                get_local 0
+                i32.load offset=4
+                call $__wbindgen_describe
+
+                ;; load fp+8 and call
+                get_local 0
+                i32.load offset=8
+                call $__wbindgen_describe
+
+                ;; increment our stack pointer
+                get_local 0
+                i32.const 16
+                i32.add
+                set_global 0
+            )
+
+            (export "foo" (func $foo))
+        )
+    "#;
+    interpret(wat, "foo", Some(&[1, 2, 3]));
+}
+
+#[test]
+fn calling_functions() {
+    let wat = r#"
+        (module
+            (import "__wbindgen_placeholder__" "__wbindgen_describe"
+              (func $__wbindgen_describe (param i32)))
+
+            (global i32 (i32.const 0))
+            (memory 1)
+
+            (func $foo
+                call $bar
+            )
+
+            (func $bar
+                i32.const 0
+                call $__wbindgen_describe
+            )
+
+            (export "foo" (func $foo))
+        )
+    "#;
+    interpret(wat, "foo", Some(&[0]));
+}
diff --git a/crates/web-sys/Cargo.toml b/crates/web-sys/Cargo.toml
index 25261494..5a30a50a 100644
--- a/crates/web-sys/Cargo.toml
+++ b/crates/web-sys/Cargo.toml
@@ -15,11 +15,10 @@ wasm-bindgen-webidl = { path = "../webidl", version = "=0.2.17" }
 sourcefile = "0.1"
 
 [dependencies]
-wasm-bindgen = { path = "../..", version = "0.2.17" }
-js-sys = { path = '../js-sys', version = '0.2.1' }
+wasm-bindgen = { path = "../..", version = "0.2.19" }
+js-sys = { path = '../js-sys', version = '0.2.4' }
 
 [target.'cfg(target_arch = "wasm32")'.dev-dependencies]
 futures = "0.1"
-js-sys = { path = '../js-sys', version = '0.2.1' }
-wasm-bindgen-test = { path = '../test', version = '0.2.17' }
-wasm-bindgen-futures = { path = '../futures', version = '0.2.17' }
+wasm-bindgen-test = { path = '../test', version = '0.2.19' }
+wasm-bindgen-futures = { path = '../futures', version = '0.2.19' }
diff --git a/crates/web-sys/tests/wasm/console.rs b/crates/web-sys/tests/wasm/console.rs
index c2289293..b8363856 100644
--- a/crates/web-sys/tests/wasm/console.rs
+++ b/crates/web-sys/tests/wasm/console.rs
@@ -3,6 +3,6 @@ use web_sys::console;
 
 #[wasm_bindgen_test]
 fn test_console() {
-    console::time_using_label("test label");
-    console::time_end_using_label("test label");
+    console::time_with_label("test label");
+    console::time_end_with_label("test label");
 }
diff --git a/crates/web-sys/tests/wasm/dom_point.rs b/crates/web-sys/tests/wasm/dom_point.rs
index f1e87f3d..4ed22c37 100644
--- a/crates/web-sys/tests/wasm/dom_point.rs
+++ b/crates/web-sys/tests/wasm/dom_point.rs
@@ -4,7 +4,7 @@ use web_sys::{DomPoint, DomPointReadOnly};
 
 #[wasm_bindgen_test]
 fn dom_point() {
-    let x = DomPoint::new_using_x_and_y_and_z_and_w(1.0, 2.0, 3.0, 4.0).unwrap();
+    let x = DomPoint::new_with_x_and_y_and_z_and_w(1.0, 2.0, 3.0, 4.0).unwrap();
     assert_eq!(x.x(), 1.0);
     x.set_x(1.5);
     assert_eq!(x.x(), 1.5);
@@ -24,7 +24,7 @@ fn dom_point() {
 
 #[wasm_bindgen_test]
 fn dom_point_readonly() {
-    let x = DomPoint::new_using_x_and_y_and_z_and_w(1.0, 2.0, 3.0, 4.0).unwrap();
+    let x = DomPoint::new_with_x_and_y_and_z_and_w(1.0, 2.0, 3.0, 4.0).unwrap();
     let x = DomPointReadOnly::from(JsValue::from(x));
     assert_eq!(x.x(), 1.0);
     assert_eq!(x.y(), 2.0);
diff --git a/crates/web-sys/tests/wasm/main.rs b/crates/web-sys/tests/wasm/main.rs
index 69e4d6f0..2f21cde6 100644
--- a/crates/web-sys/tests/wasm/main.rs
+++ b/crates/web-sys/tests/wasm/main.rs
@@ -1,4 +1,3 @@
-#![feature(use_extern_macros)]
 #![cfg(target_arch = "wasm32")]
 
 extern crate futures;
diff --git a/crates/web-sys/tests/wasm/option_element.rs b/crates/web-sys/tests/wasm/option_element.rs
index e2e074e7..1cb2d262 100644
--- a/crates/web-sys/tests/wasm/option_element.rs
+++ b/crates/web-sys/tests/wasm/option_element.rs
@@ -3,7 +3,7 @@ use web_sys::HtmlOptionElement;
 
 #[wasm_bindgen_test]
 fn test_option_element() {
-    let option = HtmlOptionElement::new_using_text_and_value_and_default_selected_and_selected(
+    let option = HtmlOptionElement::new_with_text_and_value_and_default_selected_and_selected(
       "option_text",
       "option_value",
       false,
diff --git a/crates/web-sys/tests/wasm/table_element.rs b/crates/web-sys/tests/wasm/table_element.rs
index c83ae53e..0ed436cd 100644
--- a/crates/web-sys/tests/wasm/table_element.rs
+++ b/crates/web-sys/tests/wasm/table_element.rs
@@ -99,7 +99,7 @@ fn test_table_element() {
   );
 
   table
-    .insert_row_using_index(0)
+    .insert_row_with_index(0)
     .expect("Failed to insert row at index 0");
   assert!(
     table.rows().length() == 1,
diff --git a/crates/web-sys/webidls/enabled/WindowOrWorkerGlobalScope.webidl b/crates/web-sys/webidls/enabled/WindowOrWorkerGlobalScope.webidl
index b02a355f..9bc0711b 100644
--- a/crates/web-sys/webidls/enabled/WindowOrWorkerGlobalScope.webidl
+++ b/crates/web-sys/webidls/enabled/WindowOrWorkerGlobalScope.webidl
@@ -43,25 +43,25 @@ interface mixin WindowOrWorkerGlobalScope {
 };
 
 // https://fetch.spec.whatwg.org/#fetch-method
-partial interface WindowOrWorkerGlobalScope {
+partial interface mixin WindowOrWorkerGlobalScope {
   [NewObject, NeedsCallerType]
   Promise<Response> fetch(RequestInfo input, optional RequestInit init);
 };
 
 // https://w3c.github.io/webappsec-secure-contexts/#monkey-patching-global-object
-partial interface WindowOrWorkerGlobalScope {
+partial interface mixin WindowOrWorkerGlobalScope {
   readonly attribute boolean isSecureContext;
 };
 
 // http://w3c.github.io/IndexedDB/#factory-interface
-partial interface WindowOrWorkerGlobalScope {
+partial interface mixin WindowOrWorkerGlobalScope {
    // readonly attribute IDBFactory indexedDB;
    [Throws]
    readonly attribute IDBFactory? indexedDB;
 };
 
 // https://w3c.github.io/ServiceWorker/#self-caches
-partial interface WindowOrWorkerGlobalScope {
+partial interface mixin WindowOrWorkerGlobalScope {
   [Throws, Func="mozilla::dom::DOMPrefs::DOMCachesEnabled", SameObject]
   readonly attribute CacheStorage caches;
 };
diff --git a/crates/webidl-tests/array.rs b/crates/webidl-tests/array.rs
index 7de3ea1b..f44622f0 100644
--- a/crates/webidl-tests/array.rs
+++ b/crates/webidl-tests/array.rs
@@ -14,7 +14,6 @@ fn take_and_return_a_bunch_of_slices() {
     assert_eq!(f.i16(&[1, 2]), [3, 4, 5]);
     assert_eq!(f.i32(&[1, 2]), [3, 4, 5]);
     assert_eq!(f.u8(&[1, 2]), [3, 4, 5]);
-    assert_eq!(f.u8_clamped(&[1, 2]), [3, 4, 5]);
     assert_eq!(f.u16(&[1, 2]), [3, 4, 5]);
     assert_eq!(f.u32(&[1, 2]), [3, 4, 5]);
 }
diff --git a/crates/webidl-tests/global.js b/crates/webidl-tests/global.js
new file mode 100644
index 00000000..305de81b
--- /dev/null
+++ b/crates/webidl-tests/global.js
@@ -0,0 +1,4 @@
+global.global_no_args = () => 3;
+global.global_with_args = (a, b) => a + b;
+global.global_attribute = 'x';
+
diff --git a/crates/webidl-tests/global.rs b/crates/webidl-tests/global.rs
new file mode 100644
index 00000000..12a7512e
--- /dev/null
+++ b/crates/webidl-tests/global.rs
@@ -0,0 +1,12 @@
+use wasm_bindgen_test::*;
+
+include!(concat!(env!("OUT_DIR"), "/global.rs"));
+
+#[wasm_bindgen_test]
+fn works() {
+    assert_eq!(Global::global_no_args(), 3);
+    assert_eq!(Global::global_with_args("a", "b"), "ab");
+    assert_eq!(Global::global_attribute(), "x");
+    Global::set_global_attribute("y");
+    assert_eq!(Global::global_attribute(), "y");
+}
diff --git a/crates/webidl-tests/global.webidl b/crates/webidl-tests/global.webidl
new file mode 100644
index 00000000..01cb1d97
--- /dev/null
+++ b/crates/webidl-tests/global.webidl
@@ -0,0 +1,6 @@
+[Global=x]
+interface Global {
+  unsigned long global_no_args();
+  DOMString global_with_args(DOMString a, DOMString b);
+  attribute DOMString global_attribute;
+};
diff --git a/crates/webidl-tests/main.rs b/crates/webidl-tests/main.rs
index caedcb7b..66266567 100644
--- a/crates/webidl-tests/main.rs
+++ b/crates/webidl-tests/main.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate js_sys;
 extern crate wasm_bindgen;
 extern crate wasm_bindgen_test;
@@ -12,3 +10,4 @@ pub mod namespace;
 pub mod simple;
 pub mod throws;
 pub mod dictionary;
+pub mod global;
diff --git a/crates/webidl-tests/simple.js b/crates/webidl-tests/simple.js
index 0c63082b..bb1ace6b 100644
--- a/crates/webidl-tests/simple.js
+++ b/crates/webidl-tests/simple.js
@@ -87,11 +87,7 @@ global.Unforgeable = class Unforgeable {
   }
 };
 
-global.GlobalMethod = class GlobalMethod {
-  constructor() {
-    this.m = () => 123;
-  }
-};
+global.m = () => 123;
 
 global.Indexing = function () {
   return new Proxy({}, {
diff --git a/crates/webidl-tests/simple.rs b/crates/webidl-tests/simple.rs
index b06d9dd4..b59a9ad9 100644
--- a/crates/webidl-tests/simple.rs
+++ b/crates/webidl-tests/simple.rs
@@ -50,7 +50,7 @@ fn static_property() {
 }
 
 #[wasm_bindgen_test]
-fn one_method_using_an_undefined_import_doesnt_break_all_other_methods() {
+fn one_method_with_an_undefined_import_doesnt_break_all_other_methods() {
     let f = UndefinedMethod::new().unwrap();
     assert!(f.ok_method());
 }
@@ -64,8 +64,7 @@ fn nullable_method() {
 
 #[wasm_bindgen_test]
 fn global_method() {
-    let f = GlobalMethod::new().unwrap();
-    assert_eq!(f.m(), 123);
+    assert_eq!(GlobalMethod::m(), 123);
 }
 
 #[wasm_bindgen_test]
@@ -81,14 +80,14 @@ fn indexing() {
 #[wasm_bindgen_test]
 fn optional_and_union_arguments() {
     let f = OptionalAndUnionArguments::new().unwrap();
-    assert_eq!(f.m_using_a("abc"), "string, abc, boolean, true, number, 123, number, 456");
-    assert_eq!(f.m_using_a_and_b("abc", false), "string, abc, boolean, false, number, 123, number, 456");
-    assert_eq!(f.m_using_dom_str_and_bool_and_i16("abc", false, 5), "string, abc, boolean, false, number, 5, number, 456");
-    assert_eq!(f.m_using_dom_str_and_bool_and_dom_str("abc", false, "5"), "string, abc, boolean, false, string, 5, number, 456");
-    assert_eq!(f.m_using_dom_str_and_bool_and_i16_and_opt_i64("abc", false, 5, Some(10)), "string, abc, boolean, false, number, 5, bigint, 10");
-    assert_eq!(f.m_using_dom_str_and_bool_and_i16_and_opt_bool("abc", false, 5, Some(true)), "string, abc, boolean, false, number, 5, boolean, true");
-    assert_eq!(f.m_using_dom_str_and_bool_and_dom_str_and_opt_i64("abc", false, "5", Some(10)), "string, abc, boolean, false, string, 5, bigint, 10");
-    assert_eq!(f.m_using_dom_str_and_bool_and_dom_str_and_opt_bool("abc", false, "5", Some(true)), "string, abc, boolean, false, string, 5, boolean, true");
+    assert_eq!(f.m("abc"), "string, abc, boolean, true, number, 123, number, 456");
+    assert_eq!(f.m_with_b("abc", false), "string, abc, boolean, false, number, 123, number, 456");
+    assert_eq!(f.m_with_bool_and_i16("abc", false, 5), "string, abc, boolean, false, number, 5, number, 456");
+    assert_eq!(f.m_with_bool_and_str("abc", false, "5"), "string, abc, boolean, false, string, 5, number, 456");
+    assert_eq!(f.m_with_bool_and_i16_and_opt_i64("abc", false, 5, Some(10)), "string, abc, boolean, false, number, 5, bigint, 10");
+    assert_eq!(f.m_with_bool_and_i16_and_opt_bool("abc", false, 5, Some(true)), "string, abc, boolean, false, number, 5, boolean, true");
+    assert_eq!(f.m_with_bool_and_str_and_opt_i64("abc", false, "5", Some(10)), "string, abc, boolean, false, string, 5, bigint, 10");
+    assert_eq!(f.m_with_bool_and_str_and_opt_bool("abc", false, "5", Some(true)), "string, abc, boolean, false, string, 5, boolean, true");
 }
 
 #[wasm_bindgen_test]
diff --git a/crates/webidl/Cargo.toml b/crates/webidl/Cargo.toml
index 6a0d67fc..bcf03b11 100644
--- a/crates/webidl/Cargo.toml
+++ b/crates/webidl/Cargo.toml
@@ -19,5 +19,5 @@ log = "0.4.1"
 proc-macro2 = "0.4.8"
 quote = '0.6'
 syn = { version = '0.14', features = ['full'] }
-wasm-bindgen-backend = { version = "=0.2.17", path = "../backend" }
+wasm-bindgen-backend = { version = "=0.2.19", path = "../backend" }
 weedle = "0.6"
diff --git a/crates/webidl/src/idl_type.rs b/crates/webidl/src/idl_type.rs
index c1dfa8b0..1f88d008 100644
--- a/crates/webidl/src/idl_type.rs
+++ b/crates/webidl/src/idl_type.rs
@@ -348,13 +348,13 @@ impl<'a> IdlType<'a> {
             IdlType::UnsignedLong => dst.push_str("u32"),
             IdlType::LongLong => dst.push_str("i64"),
             IdlType::UnsignedLongLong => dst.push_str("u64"),
-            IdlType::Float => dst.push_str("f32"),
-            IdlType::UnrestrictedFloat => dst.push_str("unrestricted_f32"),
-            IdlType::Double => dst.push_str("f64"),
-            IdlType::UnrestrictedDouble => dst.push_str("unrestricted_f64"),
-            IdlType::DomString => dst.push_str("dom_str"),
-            IdlType::ByteString => dst.push_str("byte_str"),
-            IdlType::UsvString => dst.push_str("usv_str"),
+            IdlType::Float |
+            IdlType::UnrestrictedFloat => dst.push_str("f32"),
+            IdlType::Double |
+            IdlType::UnrestrictedDouble => dst.push_str("f64"),
+            IdlType::DomString |
+            IdlType::ByteString |
+            IdlType::UsvString => dst.push_str("str"),
             IdlType::Object => dst.push_str("object"),
             IdlType::Symbol => dst.push_str("symbol"),
             IdlType::Error => dst.push_str("error"),
@@ -459,7 +459,7 @@ impl<'a> IdlType<'a> {
             IdlType::DataView => None,
             IdlType::Int8Array => Some(array("i8", pos)),
             IdlType::Uint8Array => Some(array("u8", pos)),
-            IdlType::Uint8ClampedArray => Some(array("u8", pos)),
+            IdlType::Uint8ClampedArray => None, // FIXME(#421)
             IdlType::Int16Array => Some(array("i16", pos)),
             IdlType::Uint16Array => Some(array("u16", pos)),
             IdlType::Int32Array => Some(array("i32", pos)),
diff --git a/crates/webidl/src/lib.rs b/crates/webidl/src/lib.rs
index 7937cc20..af09eaa9 100644
--- a/crates/webidl/src/lib.rs
+++ b/crates/webidl/src/lib.rs
@@ -591,6 +591,11 @@ fn member_attribute<'src>(
 
     let is_structural = util::is_structural(attrs);
     let throws = util::throws(attrs);
+    let global = first_pass
+        .interfaces
+        .get(self_name)
+        .map(|interface_data| interface_data.global)
+        .unwrap_or(false);
 
     for import_function in first_pass.create_getter(
         identifier,
@@ -599,6 +604,7 @@ fn member_attribute<'src>(
         is_static,
         is_structural,
         throws,
+        global,
     ) {
         program.imports.push(wrap_import_function(import_function));
     }
@@ -611,6 +617,7 @@ fn member_attribute<'src>(
             is_static,
             is_structural,
             throws,
+            global,
         ) {
             program.imports.push(wrap_import_function(import_function));
         }
@@ -712,6 +719,12 @@ fn member_operation<'src>(
         operation_ids.push(id);
     }
 
+    let global = first_pass
+        .interfaces
+        .get(self_name)
+        .map(|interface_data| interface_data.global)
+        .unwrap_or(false);
+
     for id in operation_ids {
         let methods = first_pass
             .create_basic_method(
@@ -724,15 +737,10 @@ fn member_operation<'src>(
                     OperationId::IndexingGetter |
                     OperationId::IndexingSetter |
                     OperationId::IndexingDeleter => true,
-                    _ => {
-                        first_pass
-                            .interfaces
-                            .get(self_name)
-                            .map(|interface_data| interface_data.global)
-                            .unwrap_or(false)
-                    }
+                    _ => false,
                 },
                 util::throws(attrs),
+                global,
             );
 
         for method in methods {
diff --git a/crates/webidl/src/util.rs b/crates/webidl/src/util.rs
index d4450d41..d5697899 100644
--- a/crates/webidl/src/util.rs
+++ b/crates/webidl/src/util.rs
@@ -273,9 +273,13 @@ impl<'src> FirstPassRecord<'src> {
             let rust_name = if possibilities.len() > 1 {
                 let mut rust_name = rust_name.clone();
                 let mut first = true;
-                for ((argument_name, _, _), idl_type) in arguments.iter().zip(idl_types) {
+                let iter = arguments.iter().zip(idl_types).enumerate();
+                for (i, ((argument_name, _, _), idl_type)) in iter {
+                    if possibilities.iter().all(|p| p.get(i) == Some(idl_type)) {
+                        continue
+                    }
                     if first {
-                        rust_name.push_str("_using_");
+                        rust_name.push_str("_with_");
                         first = false;
                     } else {
                         rust_name.push_str("_and_");
@@ -293,6 +297,7 @@ impl<'src> FirstPassRecord<'src> {
             let rust_name = rust_ident(&rust_name);
             let shim = {
                 let ns = match kind {
+                    backend::ast::ImportFunctionKind::ScopedMethod { .. } |
                     backend::ast::ImportFunctionKind::Normal => "",
                     backend::ast::ImportFunctionKind::Method { ref class, .. } => class,
                 };
@@ -386,6 +391,7 @@ impl<'src> FirstPassRecord<'src> {
         is_static: bool,
         structural: bool,
         catch: bool,
+        global: bool,
     ) -> Vec<backend::ast::ImportFunction> {
         let (overloaded, same_argument_names) = self.get_operation_overloading(
             arguments,
@@ -407,20 +413,26 @@ impl<'src> FirstPassRecord<'src> {
             first_pass::OperationId::IndexingSetter => "set",
             first_pass::OperationId::IndexingDeleter => "delete",
         };
-
-        let kind = backend::ast::ImportFunctionKind::Method {
-            class: self_name.to_string(),
-            ty: ident_ty(rust_ident(camel_case_ident(&self_name).as_str())),
-            kind: backend::ast::MethodKind::Operation(backend::ast::Operation {
-                is_static,
-                kind: match &operation_id {
-                    first_pass::OperationId::Constructor => panic!("constructors are unsupported"),
-                    first_pass::OperationId::Operation(_) => backend::ast::OperationKind::Regular,
-                    first_pass::OperationId::IndexingGetter => backend::ast::OperationKind::IndexingGetter,
-                    first_pass::OperationId::IndexingSetter => backend::ast::OperationKind::IndexingSetter,
-                    first_pass::OperationId::IndexingDeleter => backend::ast::OperationKind::IndexingDeleter,
-                },
-            }),
+        let operation_kind = match &operation_id {
+            first_pass::OperationId::Constructor => panic!("constructors are unsupported"),
+            first_pass::OperationId::Operation(_) => backend::ast::OperationKind::Regular,
+            first_pass::OperationId::IndexingGetter => backend::ast::OperationKind::IndexingGetter,
+            first_pass::OperationId::IndexingSetter => backend::ast::OperationKind::IndexingSetter,
+            first_pass::OperationId::IndexingDeleter => backend::ast::OperationKind::IndexingDeleter,
+        };
+        let operation = backend::ast::Operation { is_static, kind: operation_kind };
+        let ty = ident_ty(rust_ident(camel_case_ident(&self_name).as_str()));
+        let kind = if global {
+            backend::ast::ImportFunctionKind::ScopedMethod {
+                ty,
+                operation,
+            }
+        } else {
+            backend::ast::ImportFunctionKind::Method {
+                class: self_name.to_string(),
+                ty,
+                kind: backend::ast::MethodKind::Operation(operation),
+            }
         };
 
         let ret = match return_type.to_idl_type(self) {
@@ -588,19 +600,29 @@ impl<'src> FirstPassRecord<'src> {
         is_static: bool,
         is_structural: bool,
         catch: bool,
+        global: bool,
     ) -> Vec<backend::ast::ImportFunction> {
         let ret = match ty.to_idl_type(self) {
             None => return Vec::new(),
             Some(idl_type) => idl_type,
         };
+        let operation = backend::ast::Operation {
+            is_static,
+            kind: backend::ast::OperationKind::Getter(Some(raw_ident(name))),
+        };
+        let ty = ident_ty(rust_ident(camel_case_ident(&self_name).as_str()));
 
-        let kind = backend::ast::ImportFunctionKind::Method {
-            class: self_name.to_string(),
-            ty: ident_ty(rust_ident(camel_case_ident(&self_name).as_str())),
-            kind: backend::ast::MethodKind::Operation(backend::ast::Operation {
-                is_static,
-                kind: backend::ast::OperationKind::Getter(Some(raw_ident(name))),
-            }),
+        let kind = if global {
+            backend::ast::ImportFunctionKind::ScopedMethod {
+                ty,
+                operation,
+            }
+        } else {
+            backend::ast::ImportFunctionKind::Method {
+                class: self_name.to_string(),
+                ty,
+                kind: backend::ast::MethodKind::Operation(operation),
+            }
         };
         let doc_comment = Some(format!("The `{}` getter\n\n{}", name, mdn_doc(self_name, Some(name))));
 
@@ -611,19 +633,30 @@ impl<'src> FirstPassRecord<'src> {
     pub fn create_setter(
         &self,
         name: &str,
-        ty: weedle::types::Type,
+        field_ty: weedle::types::Type,
         self_name: &str,
         is_static: bool,
         is_structural: bool,
         catch: bool,
+        global: bool,
     ) -> Vec<backend::ast::ImportFunction> {
-        let kind = backend::ast::ImportFunctionKind::Method {
-            class: self_name.to_string(),
-            ty: ident_ty(rust_ident(camel_case_ident(&self_name).as_str())),
-            kind: backend::ast::MethodKind::Operation(backend::ast::Operation {
-                is_static,
-                kind: backend::ast::OperationKind::Setter(Some(raw_ident(name))),
-            }),
+        let operation = backend::ast::Operation {
+            is_static,
+            kind: backend::ast::OperationKind::Setter(Some(raw_ident(name))),
+        };
+        let ty = ident_ty(rust_ident(camel_case_ident(&self_name).as_str()));
+
+        let kind = if global {
+            backend::ast::ImportFunctionKind::ScopedMethod {
+                ty,
+                operation,
+            }
+        } else {
+            backend::ast::ImportFunctionKind::Method {
+                class: self_name.to_string(),
+                ty,
+                kind: backend::ast::MethodKind::Operation(operation),
+            }
         };
         let doc_comment = Some(format!("The `{}` setter\n\n{}", name, mdn_doc(self_name, Some(name))));
 
@@ -633,7 +666,7 @@ impl<'src> FirstPassRecord<'src> {
             false,
             &[(
                 name,
-                match ty.to_idl_type(self) {
+                match field_ty.to_idl_type(self) {
                     None => return Vec::new(),
                     Some(idl_type) => idl_type,
                 },
diff --git a/examples/README.md b/examples/README.md
index b58d29bc..05084ced 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -10,31 +10,33 @@ when using `build.sh`!
 
 The examples here are:
 
-* `hello_world` - the "hello world" of `#[wasm_bindgen]`, aka throwing up a
-  dialog greeting you
-* `console_log` - a showcase of `#[wasm_bindgen]` importing classes and how to
-  bind `console.log`
-* `math` - like `console_log` except showing how to import Math-related
-  functions instead
-* `dom` - an example of accessing the global `document` object and appending
-  HTML to it
-* `smorgasboard` - a bunch of features all thrown into one, showing off the
-  various capabilities of the `#[wasm_bindgen]` macro and what you can do with
-  it from JS
-* `performance` - how to import APIs like `performance.now()` and time various
-  operations in Rust
-* `wasm-in-wasm` - how to interact with namespaced APIs like
-  `WebAssembly.Module` and shows off creation of a WebAssembly module from Rust
-* `closures` - an example of how to invoke functions like `setInterval` or use
-  the `onclick` property in conjunction with closures.
-* `no_modules` - an example of how to use the `--no-modules` flag to
-  the `wasm-bindgen` CLI tool
 * `add` - an example of generating a tiny wasm binary, one that only adds two
   numbers.
 * `asm.js` - an example of using the `wasm2asm` tool from [binaryen] to convert
   the generated WebAssembly to normal JS
 * `char` - an example of passing the rust `char` type to and from the js `string` type
-* `import_js` - an example of importing local JS functionality into a crate
+* `closures` - an example of how to invoke functions like `setInterval` or use
+  the `onclick` property in conjunction with closures.
 * `comments` - an example of how Rust comments are copied into js bindings
+* `console_log` - a showcase of `#[wasm_bindgen]` importing classes and how to
+  bind `console.log`
+* `dom` - an example of accessing the global `document` object and appending
+  HTML to it
+* `fetch` -- how to use the Fetch API to make async http requests 
+* `hello_world` - the "hello world" of `#[wasm_bindgen]`, aka throwing up a
+  dialog greeting you
+* `import_js` - an example of importing local JS functionality into a crate
+* `math` - like `console_log` except showing how to import Math-related
+  functions instead
+* `no_modules` - an example of how to use the `--no-modules` flag to
+  the `wasm-bindgen` CLI tool
+* `performance` - how to import APIs like `performance.now()` and time various
+  operations in Rust
+* `smorgasboard` - a bunch of features all thrown into one, showing off the
+  various capabilities of the `#[wasm_bindgen]` macro and what you can do with
+  it from JS
+* `wasm-in-wasm` - how to interact with namespaced APIs like
+  `WebAssembly.Module` and shows off creation of a WebAssembly module from Rust
+* `webaudio` - how to use the Web Audio APIs to generate sounds
 
 [binaryen]: https://github.com/WebAssembly/binaryen
diff --git a/examples/add/src/lib.rs b/examples/add/src/lib.rs
index 77a63744..d8c7633a 100644
--- a/examples/add/src/lib.rs
+++ b/examples/add/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/asm.js/src/lib.rs b/examples/asm.js/src/lib.rs
index c6ee4f47..c2689b1b 100644
--- a/examples/asm.js/src/lib.rs
+++ b/examples/asm.js/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/canvas/src/lib.rs b/examples/canvas/src/lib.rs
index 05a67b19..420016e2 100755
--- a/examples/canvas/src/lib.rs
+++ b/examples/canvas/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate js_sys;
 extern crate wasm_bindgen;
 extern crate web_sys;
@@ -8,13 +6,9 @@ use std::f64;
 use wasm_bindgen::prelude::*;
 use wasm_bindgen::JsCast;
 
-#[wasm_bindgen]
-extern "C" {
-    static document: web_sys::Document;
-}
-
 #[wasm_bindgen]
 pub fn draw() {
+    let document = web_sys::Window::document().unwrap();
     let canvas = document.get_element_by_id("canvas").unwrap();
     let canvas: web_sys::HtmlCanvasElement = canvas
         .dyn_into::<web_sys::HtmlCanvasElement>()
@@ -22,7 +16,7 @@ pub fn draw() {
         .unwrap();
 
     let context = canvas
-        .get_context_using_context_id("2d")
+        .get_context("2d")
         .unwrap()
         .unwrap()
         .dyn_into::<web_sys::CanvasRenderingContext2D>()
@@ -31,43 +25,43 @@ pub fn draw() {
     context.begin_path();
 
     // Draw the outer circle.
-    context.arc_using_x_and_y_and_radius_and_start_angle_and_end_angle(
+    context.arc(
         75.0,
         75.0,
         50.0,
         0.0,
         f64::consts::PI * 2.0,
-    );
+    ).unwrap();
 
     // Draw the mouth.
     context.move_to(110.0, 75.0);
-    context.arc_using_x_and_y_and_radius_and_start_angle_and_end_angle(
+    context.arc(
         75.0,
         75.0,
         35.0,
         0.0,
         f64::consts::PI,
-    );
+    ).unwrap();
 
     // Draw the left eye.
     context.move_to(65.0, 65.0);
-    context.arc_using_x_and_y_and_radius_and_start_angle_and_end_angle(
+    context.arc(
         60.0,
         65.0,
         5.0,
         0.0,
         f64::consts::PI * 2.0,
-    );
+    ).unwrap();
 
     // Draw the right eye.
     context.move_to(95.0, 65.0);
-    context.arc_using_x_and_y_and_radius_and_start_angle_and_end_angle(
+    context.arc(
         90.0,
         65.0,
         5.0,
         0.0,
         f64::consts::PI * 2.0,
-    );
+    ).unwrap();
 
     context.stroke();
 }
diff --git a/examples/char/src/lib.rs b/examples/char/src/lib.rs
index 5682ae4c..ad7c1021 100644
--- a/examples/char/src/lib.rs
+++ b/examples/char/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/closures/Cargo.toml b/examples/closures/Cargo.toml
index ce6e6da6..e33f3ac8 100644
--- a/examples/closures/Cargo.toml
+++ b/examples/closures/Cargo.toml
@@ -7,5 +7,5 @@ authors = ["Alex Crichton <alex@alexcrichton.com>"]
 crate-type = ["cdylib"]
 
 [dependencies]
-wasm-bindgen = { path = "../.." }
+wasm-bindgen = { path = "../..", features = ['nightly'] }
 js-sys = { path = "../../crates/js-sys" }
diff --git a/examples/closures/src/lib.rs b/examples/closures/src/lib.rs
index 8b510f98..3aa0c30e 100755
--- a/examples/closures/src/lib.rs
+++ b/examples/closures/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 extern crate js_sys;
 
diff --git a/examples/comments/src/lib.rs b/examples/comments/src/lib.rs
index cc416955..cc0a7e12 100644
--- a/examples/comments/src/lib.rs
+++ b/examples/comments/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/console_log/Cargo.toml b/examples/console_log/Cargo.toml
index 25761c2d..aa558dc8 100644
--- a/examples/console_log/Cargo.toml
+++ b/examples/console_log/Cargo.toml
@@ -8,3 +8,4 @@ crate-type = ["cdylib"]
 
 [dependencies]
 wasm-bindgen = { path = "../.." }
+web-sys = { path = "../../crates/web-sys" }
\ No newline at end of file
diff --git a/examples/console_log/README.md b/examples/console_log/README.md
index 27a58418..dec3ea2e 100644
--- a/examples/console_log/README.md
+++ b/examples/console_log/README.md
@@ -2,8 +2,10 @@
 
 [View this example online](https://webassembly.studio/?f=ppd7u8k9i9)
 
-This directory is an example of using the `#[wasm_bindgen]` macro to import the
-`console.log` function and call it
+
+This directory is an example of two ways to get access to the `console.log` function.
+The first way uses the `#[wasm_bindgen]` macro to import the function and call it.
+The second way uses the binding from the `web-sys` crate.
 
 You can build the example with:
 
diff --git a/examples/console_log/src/lib.rs b/examples/console_log/src/lib.rs
index 5b652e71..7ae64334 100644
--- a/examples/console_log/src/lib.rs
+++ b/examples/console_log/src/lib.rs
@@ -1,9 +1,12 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
+extern crate web_sys;
 
 use wasm_bindgen::prelude::*;
 
+// You can use the console bindings from web-sys...
+use web_sys::console;
+
+// ... or you can manually write the bindings yourself
 #[wasm_bindgen]
 extern "C" {
     #[wasm_bindgen(js_namespace = console)]
@@ -19,4 +22,7 @@ pub fn run() {
     log("Hello from Rust!");
     log_u32(42);
     log_many("Logging", "many values!");
+
+    console::log(JsValue::from("Another message from rust!"));
+    console::log(JsValue::from(56u32));
 }
diff --git a/examples/dom/src/lib.rs b/examples/dom/src/lib.rs
index 43d98f76..98c4021e 100644
--- a/examples/dom/src/lib.rs
+++ b/examples/dom/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/fetch/.gitignore b/examples/fetch/.gitignore
new file mode 100644
index 00000000..cf66a572
--- /dev/null
+++ b/examples/fetch/.gitignore
@@ -0,0 +1,4 @@
+fetch.d.ts
+fetch.js
+fetch_bg.wasm
+package-lock.json
diff --git a/examples/fetch/Cargo.toml b/examples/fetch/Cargo.toml
new file mode 100644
index 00000000..ef6df418
--- /dev/null
+++ b/examples/fetch/Cargo.toml
@@ -0,0 +1,16 @@
+[package]
+name = "fetch"
+version = "0.1.0"
+authors = ["Andrew Chin <achin@eminence32.net>"]
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+futures = "0.1.20"
+wasm-bindgen = { path = "../..", features = ["serde-serialize"]  }
+js-sys = { path = "../../crates/js-sys" }
+web-sys = { path = "../../crates/web-sys" }
+wasm-bindgen-futures = { path = "../../crates/futures" }
+serde = "^1.0.59"
+serde_derive = "^1.0.59"
\ No newline at end of file
diff --git a/examples/fetch/build.bat b/examples/fetch/build.bat
new file mode 100644
index 00000000..590cd403
--- /dev/null
+++ b/examples/fetch/build.bat
@@ -0,0 +1,2 @@
+cargo +nightly build --target wasm32-unknown-unknown
+cargo +nightly run --manifest-path ../../crates/cli/Cargo.toml --bin wasm-bindgen -- ../../target/wasm32-unknown-unknown/debug/fetch.wasm --out-dir .
diff --git a/examples/fetch/build.sh b/examples/fetch/build.sh
new file mode 100755
index 00000000..585f428c
--- /dev/null
+++ b/examples/fetch/build.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# For more coments about what's going on here, see the `hello_world` example
+
+set -ex
+
+cargo +nightly build --target wasm32-unknown-unknown
+cargo +nightly run --manifest-path ../../crates/cli/Cargo.toml \
+  --bin wasm-bindgen -- \
+  ../../target/wasm32-unknown-unknown/debug/fetch.wasm --out-dir .
diff --git a/examples/fetch/index.html b/examples/fetch/index.html
new file mode 100644
index 00000000..3556e137
--- /dev/null
+++ b/examples/fetch/index.html
@@ -0,0 +1,10 @@
+<html>
+  <head>
+    <meta content="text/html;charset=utf-8" http-equiv="Content-Type"/>
+  </head>
+  <body>
+    <script src='./index.js'></script>
+
+
+  </body>
+</html>
diff --git a/examples/fetch/index.js b/examples/fetch/index.js
new file mode 100644
index 00000000..5cea1ca2
--- /dev/null
+++ b/examples/fetch/index.js
@@ -0,0 +1,11 @@
+const rust = import('./fetch');
+
+
+rust.then(m => {
+    m.run().then((data) => {
+        console.log(data);
+
+        console.log("The latest commit to the wasm-bindgen %s branch is:", data.name);
+        console.log("%s, authored by %s <%s>", data.commit.sha, data.commit.commit.author.name, data.commit.commit.author.email);
+    })
+});
diff --git a/examples/fetch/package.json b/examples/fetch/package.json
new file mode 100644
index 00000000..07da0131
--- /dev/null
+++ b/examples/fetch/package.json
@@ -0,0 +1,9 @@
+{
+  "scripts": {
+    "serve": "webpack-serve ./webpack.config.js"
+  },
+  "devDependencies": {
+    "webpack": "^4.16.5",
+    "webpack-serve": "^2.0.2"
+  }
+}
diff --git a/examples/fetch/src/lib.rs b/examples/fetch/src/lib.rs
new file mode 100644
index 00000000..53853f9b
--- /dev/null
+++ b/examples/fetch/src/lib.rs
@@ -0,0 +1,78 @@
+extern crate wasm_bindgen;
+extern crate js_sys;
+extern crate web_sys;
+extern crate wasm_bindgen_futures;
+extern crate futures;
+#[macro_use]
+extern crate serde_derive;
+
+use wasm_bindgen::prelude::*;
+use wasm_bindgen::JsCast;
+use js_sys::Promise;
+use web_sys::{Request, RequestInit, RequestMode, Response, Window};
+use wasm_bindgen_futures::JsFuture;
+use futures::{future, Future};
+use wasm_bindgen_futures::future_to_promise;
+
+// A struct to hold some data from the github Branch API.
+// Note how we don't have to define every member -- serde will ignore extra data when deserializing
+#[derive(Debug, Serialize, Deserialize)]
+pub struct Branch {
+    pub name: String,
+    pub commit: Commit,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct Commit {
+    pub sha: String,
+    pub commit: CommitDetails,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct CommitDetails {
+    pub author: Signature,
+    pub committer: Signature,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct Signature {
+    pub name: String,
+    pub email: String,
+}
+
+#[wasm_bindgen]
+pub fn run() -> Promise {
+    let mut request_options = RequestInit::new();
+    request_options.method("GET");
+    request_options.mode(RequestMode::Cors);
+
+    let req = Request::new_with_str_and_request_init("https://api.github.com/repos/rustwasm/wasm-bindgen/branches/master", &request_options).unwrap();
+
+    // the RequestInit struct will eventually support setting headers, but that's missing right now
+    req.headers().set("Accept", "application/vnd.github.v3+json").unwrap();
+
+    let req_promise = Window::fetch_with_request(&req);
+
+    let to_return = JsFuture::from(req_promise).and_then(|resp_value| {
+        // resp_value is a Response object
+        assert!(resp_value.is_instance_of::<Response>());
+        let resp: Response = resp_value.dyn_into().unwrap();
+
+        resp.json()
+
+
+    }).and_then(|json_value: Promise| {
+        // convert this other promise into a rust Future
+        JsFuture::from(json_value)
+    }).and_then(|json| {
+        // Use serde to parse this into a struct
+        let branch_info: Branch = json.into_serde().unwrap();
+
+        // Send the Branch struct back to javascript as an object
+        future::ok(JsValue::from_serde(&branch_info).unwrap())
+    });
+
+    // Convert this rust future back into a javascript promise.
+    // Return it to javascript so that it can be driven to completion.
+    future_to_promise(to_return)
+}
diff --git a/examples/fetch/webpack.config.js b/examples/fetch/webpack.config.js
new file mode 100644
index 00000000..dce27149
--- /dev/null
+++ b/examples/fetch/webpack.config.js
@@ -0,0 +1,10 @@
+const path = require('path');
+
+module.exports = {
+    entry: './index.js',
+    output: {
+        path: path.resolve(__dirname, 'dist'),
+        filename: 'index.js',
+    },
+    mode: 'development'
+};
diff --git a/examples/guide-supported-types-examples/src/lib.rs b/examples/guide-supported-types-examples/src/lib.rs
index 9dbfdf48..13984c23 100755
--- a/examples/guide-supported-types-examples/src/lib.rs
+++ b/examples/guide-supported-types-examples/src/lib.rs
@@ -1,4 +1,3 @@
-#![feature(use_extern_macros)]
 #![allow(unused_variables, dead_code)]
 
 extern crate wasm_bindgen;
diff --git a/examples/hello_world/src/lib.rs b/examples/hello_world/src/lib.rs
index 41486fa4..3a3634b9 100644
--- a/examples/hello_world/src/lib.rs
+++ b/examples/hello_world/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/import_js/src/lib.rs b/examples/import_js/src/lib.rs
index 5093db75..aab964d6 100644
--- a/examples/import_js/src/lib.rs
+++ b/examples/import_js/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/julia_set/src/lib.rs b/examples/julia_set/src/lib.rs
index 2f7a00a9..a92eea48 100644
--- a/examples/julia_set/src/lib.rs
+++ b/examples/julia_set/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 use wasm_bindgen::prelude::*;
 
diff --git a/examples/math/src/lib.rs b/examples/math/src/lib.rs
index 35194922..9f3449c3 100644
--- a/examples/math/src/lib.rs
+++ b/examples/math/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/no_modules/src/lib.rs b/examples/no_modules/src/lib.rs
index 41486fa4..3a3634b9 100644
--- a/examples/no_modules/src/lib.rs
+++ b/examples/no_modules/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/performance/src/lib.rs b/examples/performance/src/lib.rs
index 1598ed95..9a50eb6f 100644
--- a/examples/performance/src/lib.rs
+++ b/examples/performance/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate humantime;
 extern crate wasm_bindgen;
 
diff --git a/examples/smorgasboard/src/lib.rs b/examples/smorgasboard/src/lib.rs
index 308f3390..a1f1755d 100644
--- a/examples/smorgasboard/src/lib.rs
+++ b/examples/smorgasboard/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/wasm-in-wasm/src/lib.rs b/examples/wasm-in-wasm/src/lib.rs
index b2539293..2757438c 100644
--- a/examples/wasm-in-wasm/src/lib.rs
+++ b/examples/wasm-in-wasm/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/examples/webaudio/.gitignore b/examples/webaudio/.gitignore
new file mode 100644
index 00000000..89f520ca
--- /dev/null
+++ b/examples/webaudio/.gitignore
@@ -0,0 +1,4 @@
+package-lock.json
+node_modules/
+webaudio.js
+webaudio_bg.wasm
diff --git a/examples/webaudio/Cargo.toml b/examples/webaudio/Cargo.toml
new file mode 100644
index 00000000..6d71cc84
--- /dev/null
+++ b/examples/webaudio/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "webaudio"
+version = "0.1.0"
+authors = ["Andrew Chin <achin@eminence32.net>"]
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+wasm-bindgen = { path = "../.." }
+web-sys = { path = "../../crates/web-sys" }
\ No newline at end of file
diff --git a/examples/webaudio/README.md b/examples/webaudio/README.md
new file mode 100644
index 00000000..98c9f0c6
--- /dev/null
+++ b/examples/webaudio/README.md
@@ -0,0 +1,14 @@
+# Web Audio example
+
+This directory is an example of how to use the Web Audio APIs from Rust.  It creates a very simple
+FM (frequency modulation) synth, and let's you control the primary frequency, the modulation amount,
+and the modulation frequency.
+
+To run, first install some utilities via npm:
+
+ > npm install
+ 
+ Then build the project with either `build.bat` or `build.sh`.
+ 
+ Finally, run a development web server with `npm run serve` and then open
+ [http://localhost:8080/](http://localhost:8080/) in a browser! 
\ No newline at end of file
diff --git a/examples/webaudio/build.bat b/examples/webaudio/build.bat
new file mode 100644
index 00000000..de86353e
--- /dev/null
+++ b/examples/webaudio/build.bat
@@ -0,0 +1,2 @@
+cargo +nightly build --target wasm32-unknown-unknown
+cargo +nightly run --manifest-path ../../crates/cli/Cargo.toml --bin wasm-bindgen -- ../../target/wasm32-unknown-unknown/debug/webaudio.wasm --out-dir .
diff --git a/examples/webaudio/build.sh b/examples/webaudio/build.sh
new file mode 100755
index 00000000..fa6c0c12
--- /dev/null
+++ b/examples/webaudio/build.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# For more coments about what's going on here, see the `hello_world` example
+
+set -ex
+
+cargo +nightly build --target wasm32-unknown-unknown
+cargo +nightly run --manifest-path ../../crates/cli/Cargo.toml \
+  --bin wasm-bindgen -- \
+  ../../target/wasm32-unknown-unknown/debug/webaudio.wasm --out-dir .
diff --git a/examples/webaudio/index.html b/examples/webaudio/index.html
new file mode 100644
index 00000000..d091f797
--- /dev/null
+++ b/examples/webaudio/index.html
@@ -0,0 +1,31 @@
+<html>
+  <head>
+    <meta content="text/html;charset=utf-8" http-equiv="Content-Type"/>
+  </head>
+  <body>
+    <script>
+      // Global variable, so a user can play with it via the JS console
+      var fm;
+      function play() {
+        console.log("Rust module not loaded yet!");
+      }
+    </script>
+    <script src='./index.js'></script>
+
+    <input type="button" value="Click me first to turn on audio" onclick="javascript: play();" />
+    (headphone users, please make sure your volume is not too loud!)
+
+    <div>
+        Primary frequency: <input type="range" min="30" max="80" value="50" style="width: 400px" id="primary_input"/>
+    </div>
+
+    <div>
+        Modulation frequency: <input type="range" min="0" max="3" value="0" step="0.05"  style="width: 400px" id="fm_freq"/>
+    </div>
+
+    <div>
+        Modulation amount: <input type="range" min="0" max="3" value="0" step="0.05"  style="width: 400px" id="fm_amount"/>
+    </div>
+
+  </body>
+</html>
diff --git a/examples/webaudio/index.js b/examples/webaudio/index.js
new file mode 100644
index 00000000..6488f5de
--- /dev/null
+++ b/examples/webaudio/index.js
@@ -0,0 +1,40 @@
+const rust = import('./webaudio');
+
+
+// Most browsers don't let WebAudio autoplay without some interaction from the user.  So once the module is loaded,
+// it's passed to this function which will set up the UI elements for the user to interact with
+function setup(rust_module) {
+    play = function() {
+            console.log("About to create some music!");
+            fm = new rust_module.FmOsc();
+
+            fm.set_note(50);
+            fm.set_fm_frequency(0);
+            fm.set_fm_amount(0);
+            fm.set_gain(0.8);
+
+    };
+
+    // create some UI elements
+    const primary_slider = document.getElementById("primary_input");
+    primary_slider.oninput = (e) => {
+        fm.set_note(e.target.value);
+    };
+
+    const fm_freq = document.getElementById("fm_freq");
+    fm_freq.oninput = (e) => {
+        fm.set_fm_frequency(e.target.value);
+    };
+
+    const fm_amount = document.getElementById("fm_amount");
+    fm_amount.oninput = (e) => {
+        fm.set_fm_amount(e.target.value);
+    };
+
+    console.log("Ready!  Press the play button!");
+}
+
+
+rust.then(m => {
+    setup(m);
+});
diff --git a/examples/webaudio/package.json b/examples/webaudio/package.json
new file mode 100644
index 00000000..07da0131
--- /dev/null
+++ b/examples/webaudio/package.json
@@ -0,0 +1,9 @@
+{
+  "scripts": {
+    "serve": "webpack-serve ./webpack.config.js"
+  },
+  "devDependencies": {
+    "webpack": "^4.16.5",
+    "webpack-serve": "^2.0.2"
+  }
+}
diff --git a/examples/webaudio/src/lib.rs b/examples/webaudio/src/lib.rs
new file mode 100644
index 00000000..3c86179c
--- /dev/null
+++ b/examples/webaudio/src/lib.rs
@@ -0,0 +1,155 @@
+extern crate wasm_bindgen;
+extern crate web_sys;
+
+use wasm_bindgen::prelude::*;
+use web_sys::{AudioContext, BaseAudioContext, AudioNode, AudioScheduledSourceNode, OscillatorType};
+
+/// Converts a midi note to frequency
+///
+/// A midi note is an integer, generally in the range of 21 to 108
+pub fn midi_to_freq(note: u8) -> f32 {
+    27.5 * 2f32.powf((note as f32 - 21.0) / 12.0)
+}
+
+#[wasm_bindgen]
+pub struct FmOsc {
+    ctx: AudioContext,
+    /// The primary oscillator.  This will be the fundamental frequency
+    primary: web_sys::OscillatorNode,
+
+    /// Overall gain (volume) control
+    gain: web_sys::GainNode,
+
+    /// Amount of frequency modulation
+    fm_gain: web_sys::GainNode,
+
+    /// The oscillator that will modulate the primary oscillator's frequency
+    fm_osc: web_sys::OscillatorNode,
+
+    /// The ratio between the primary frequency and the fm_osc frequency.
+    ///
+    /// Generally fractional values like 1/2 or 1/4 sound best
+    fm_freq_ratio: f32,
+
+    fm_gain_ratio: f32,
+
+
+}
+
+#[wasm_bindgen]
+impl FmOsc {
+    #[wasm_bindgen(constructor)]
+    pub fn new() -> FmOsc {
+        // TODO, how to throw from a constructor?
+
+        let ctx = web_sys::AudioContext::new().unwrap();
+        let primary;
+        let fm_osc;
+        let gain;
+        let fm_gain;
+
+        {
+            let base: &BaseAudioContext = ctx.as_ref();
+
+            // create our web audio objects
+            primary = base.create_oscillator().unwrap();
+            fm_osc = base.create_oscillator().unwrap();
+            gain = base.create_gain().unwrap();
+            fm_gain = base.create_gain().unwrap();
+        }
+
+        // some initial settings:
+        primary.set_type(OscillatorType::Sine);
+        primary.frequency().set_value(440.0); // A4 note
+        gain.gain().set_value(0.0); // starts muted
+        fm_gain.gain().set_value(0.0); // no initial frequency modulation
+        fm_osc.set_type(OscillatorType::Sine);
+        fm_osc.frequency().set_value(0.0);
+
+
+        // Create base class references:
+        {
+            let primary_node: &AudioNode = primary.as_ref();
+            let gain_node: &AudioNode = gain.as_ref();
+            let fm_osc_node: &AudioNode = fm_osc.as_ref();
+            let fm_gain_node: &AudioNode = fm_gain.as_ref();
+            let base: &BaseAudioContext = ctx.as_ref();
+            let destination = base.destination();
+            let destination_node: &AudioNode = destination.as_ref();
+
+
+            // connect them up:
+
+            // The primary oscillator is routed through the gain node, so that it can control the overall output volume
+            primary_node.connect_with_destination_and_output_and_input(gain.as_ref()).unwrap();
+            // Then connect the gain node to the AudioContext destination (aka your speakers)
+            gain_node.connect_with_destination_and_output_and_input(destination_node).unwrap();
+
+            // the FM oscillator is connected to its own gain node, so it can control the amount of modulation
+            fm_osc_node.connect_with_destination_and_output_and_input(fm_gain.as_ref()).unwrap();
+
+            // Connect the FM oscillator to the frequency parameter of the main oscillator, so that the
+            // FM node can modulate its frequency
+            fm_gain_node.connect_with_destination_and_output(&primary.frequency()).unwrap();
+        }
+
+
+        // start the oscillators!
+        AsRef::<AudioScheduledSourceNode>::as_ref(&primary).start().unwrap();
+        AsRef::<AudioScheduledSourceNode>::as_ref(&fm_osc).start().unwrap();
+
+        FmOsc {
+            ctx,
+            primary,
+            gain,
+            fm_gain,
+            fm_osc,
+            fm_freq_ratio: 0.0,
+            fm_gain_ratio: 0.0,
+        }
+
+    }
+
+    /// Sets the gain for this oscillator, between 0.0 and 1.0
+    #[wasm_bindgen]
+    pub fn set_gain(&self, mut gain: f32) {
+        if gain > 1.0 { gain = 1.0; }
+        if gain < 0.0 { gain = 0.0; }
+        self.gain.gain().set_value(gain);
+    }
+
+    #[wasm_bindgen]
+    pub fn set_primary_frequency(&self, freq: f32) {
+        self.primary.frequency().set_value(freq);
+
+        // The frequency of the FM oscillator depends on the frequency of the primary oscillator, so
+        // we update the frequency of both in this method
+        self.fm_osc.frequency().set_value(self.fm_freq_ratio * freq);
+        self.fm_gain.gain().set_value(self.fm_gain_ratio * freq);
+
+    }
+
+    #[wasm_bindgen]
+    pub fn set_note(&self, note: u8) {
+        let freq = midi_to_freq(note);
+        self.set_primary_frequency(freq);
+    }
+
+    /// This should be between 0 and 1, though higher values are accepted
+    #[wasm_bindgen]
+    pub fn set_fm_amount(&mut self, amt: f32) {
+        self.fm_gain_ratio = amt;
+
+        self.fm_gain.gain().set_value(self.fm_gain_ratio * self.primary.frequency().value());
+
+    }
+
+    /// This should be between 0 and 1, though higher values are accepted
+    #[wasm_bindgen]
+    pub fn set_fm_frequency(&mut self, amt: f32) {
+        self.fm_freq_ratio = amt;
+        self.fm_osc.frequency().set_value(self.fm_freq_ratio * self.primary.frequency().value());
+    }
+
+
+}
diff --git a/examples/webaudio/webpack.config.js b/examples/webaudio/webpack.config.js
new file mode 100644
index 00000000..dce27149
--- /dev/null
+++ b/examples/webaudio/webpack.config.js
@@ -0,0 +1,10 @@
+const path = require('path');
+
+module.exports = {
+    entry: './index.js',
+    output: {
+        path: path.resolve(__dirname, 'dist'),
+        filename: 'index.js',
+    },
+    mode: 'development'
+};
diff --git a/guide/src/publishing.md b/guide/src/publishing.md
index 296ac45b..fa916332 100644
--- a/guide/src/publishing.md
+++ b/guide/src/publishing.md
@@ -8,54 +8,29 @@
   git pull origin master
   ```
 
-* [ ] Update `Cargo.toml` versions and dependency versions:
+* [ ] Run `rustc ./publish.rs`
 
-  ```
-  git ls-files | grep Cargo.toml | xargs sed -i '' -e 's/0\.X\.Y/0.X.Z/g'
-  ```
-
-  where "0.X.Y" is the old version and "0.X.Z" is the new version.
+* [ ] Run `./publish bump` - this will update all version numbers
 
 * [ ] Write a "0.X.Z" entry in the CHANGELOG.md
 
-* [ ] Run all the tests for sanity
-
-  ```
-  cargo test
-  cargo test -p js-sys
-  cargo test -p js-sys --target wasm32-unknown-unknown
-  cargo test -p wasm-bindgen-webidl
-  cargo test -p web-sys
-  ```
-
 * [ ] Commit the version bump:
 
   ```
   git commit -m "Bump to version 0.X.Z"
   ```
 
+* [ ] Send a PR to the `wasm-bindgen` repository, get it merged
+
+* [ ] Check out the merge commit of `wasm-bindgen`
+
 * [ ] Comment out the `[patch]` section in the root `Cargo.toml` that only
       exists to make sure that `console_error_panic_hook` in tests is using
       *this* `wasm-bindgen` rather than one from crates.io.
 
-* [ ] Publish the crates in reverse dependency order:
+* [ ] Run `rustc ./publish.rs`
 
-  ```
-  cd crates/shared && cargo publish && cd -
-  cd crates/backend && cargo publish && cd -
-  cd crates/macro && cargo publish && cd -
-  cd crates/cli-support && cargo publish && cd -
-  cd crates/test-macro && cargo publish && cd -
-  cd crates/test && cargo publish --no-verify && cd -
-  cd crates/cli && cargo publish && cd -
-  cargo publish --allow-dirty # because of uncommitted, commented out [patch] section
-  ```
-
-* [ ] Push the commit:
-
-  ```
-  git push origin master
-  ```
+* [ ] Run `./publish publish`
 
 * [ ] Tag the release and push it:
 
diff --git a/guide/src/team.md b/guide/src/team.md
index 0edd2e60..6125ae3b 100644
--- a/guide/src/team.md
+++ b/guide/src/team.md
@@ -23,8 +23,8 @@ img {
 | [![](https://github.com/alexcrichton.png?size=117)][alexcrichton] | [![](https://github.com/fitzgen.png?size=117)][fitzgen] | [![](https://github.com/spastorino.png?size=117)][spastorino] | [![](https://github.com/ohanar.png?size=117)][ohanar] | [![](https://github.com/jonathan-s.png?size=117)][jonathan-s] |
 |:---:|:---:|:---:|:---:|
 | [`alexcrichton`][alexcrichton] | [`fitzgen`][fitzgen] | [`spastorino`][spastorino] | [`ohanar`][ohanar] | [`jonathan-s`][jonathan-s] |
-| [![](https://github.com/sendilkumarn.png?size=117)][sendilkumarn] | [![](https://github.com/belfz.png?size=117)][belfz] | | | |
-| [`sendilkumarn`][sendilkumarn] | [`belfz`][belfz] | | | |
+| [![](https://github.com/sendilkumarn.png?size=117)][sendilkumarn] | [![](https://github.com/belfz.png?size=117)][belfz] | [![](https://github.com/afdw.png?size=117)][afdw] | | |
+| [`sendilkumarn`][sendilkumarn] | [`belfz`][belfz] | [`afdw`][afdw] | | |
 
 [alexcrichton]: https://github.com/alexcrichton
 [fitzgen]: https://github.com/fitzgen
@@ -33,3 +33,4 @@ img {
 [jonathan-s]: https://github.com/jonathan-s
 [sendilkumarn]: https://github.com/sendilkumarn
 [belfz]: https://github.com/belfz
+[afdw]: https://github.com/afdw
diff --git a/guide/src/whirlwind-tour/basic-usage.md b/guide/src/whirlwind-tour/basic-usage.md
index 8d8bb820..5a1f9fd8 100644
--- a/guide/src/whirlwind-tour/basic-usage.md
+++ b/guide/src/whirlwind-tour/basic-usage.md
@@ -39,8 +39,6 @@ wasm-bindgen = "0.2"
 Next up our actual code! We'll write this in `src/lib.rs`:
 
 ```rust,ignore
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 use wasm_bindgen::prelude::*;
 
diff --git a/guide/src/whirlwind-tour/what-else-can-we-do.md b/guide/src/whirlwind-tour/what-else-can-we-do.md
index 61b65318..80bc19b0 100644
--- a/guide/src/whirlwind-tour/what-else-can-we-do.md
+++ b/guide/src/whirlwind-tour/what-else-can-we-do.md
@@ -5,8 +5,6 @@ can also [explore this code online](https://webassembly.studio/?f=t61j18noqz):
 
 ```rust,ignore
 // src/lib.rs
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/package-lock.json b/package-lock.json
deleted file mode 100644
index cf26ed76..00000000
--- a/package-lock.json
+++ /dev/null
@@ -1,5881 +0,0 @@
-{
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-  "lockfileVersion": 1,
-  "dependencies": {
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-      "version": "1.5.13",
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-      "dev": true,
-      "requires": {
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-        "@webassemblyjs/helper-wasm-bytecode": "1.5.13",
-        "@webassemblyjs/wast-parser": "1.5.13",
-        "debug": "^3.1.0",
-        "mamacro": "^0.0.3"
-      }
-    },
-    "@webassemblyjs/floating-point-hex-parser": {
-      "version": "1.5.13",
-      "resolved": "https://registry.npmjs.org/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.5.13.tgz",
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-      "dev": true
-    },
-    "@webassemblyjs/helper-api-error": {
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-      "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-api-error/-/helper-api-error-1.5.13.tgz",
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-      "dev": true
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-      }
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-          "dev": true,
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-    }
-  }
-}
diff --git a/package.json b/package.json
index 33d0962b..fee3233d 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,8 @@
 {
   "license": "MIT",
   "devDependencies": {
-    "webpack": "^4.16.5",
+    "webpack": "^4.17.1",
     "webpack-cli": "^3.1.0",
-    "webpack-dev-server": "^3.1.5"
+    "webpack-dev-server": "^3.1.6"
   }
 }
diff --git a/publish.rs b/publish.rs
new file mode 100644
index 00000000..6afa8b16
--- /dev/null
+++ b/publish.rs
@@ -0,0 +1,197 @@
+//! Helper script to publish the wasm-bindgen suite of crates
+//!
+//! Usage:
+//!
+//! * First, compile this script
+//! * Next, set cwd to the root of the wasm-bindgen repository
+//! * Execute `./publish bump` to bump versions
+//! * Send a PR
+//! * Merge when green
+//! * Execute `./publish publish` to publish crates
+
+use std::env;
+use std::fs;
+use std::path::{Path, PathBuf};
+use std::process::Command;
+
+const CRATES_TO_PUBLISH: &[&str] = &[
+    "wasm-bindgen",
+    "js-sys",
+    "wasm-bindgen-backend",
+    "wasm-bindgen-cli",
+    "wasm-bindgen-cli-support",
+    "wasm-bindgen-futures",
+    "wasm-bindgen-macro",
+    "wasm-bindgen-macro-support",
+    "wasm-bindgen-shared",
+    "wasm-bindgen-test",
+    "wasm-bindgen-test-macro",
+    "wasm-bindgen-wasm-interpreter",
+];
+
+const CRATES_TO_AVOID_PUBLISH: &[&str] = &[
+    // We'll publish these when they're ready one day
+    "wasm-bindgen-typescript",
+    "web-sys",
+    "wasm-bindgen-webidl",
+
+    // These are internal crates, unlikely to ever be published
+    "ui-tests",
+    "sample",
+    "webidl-tests",
+];
+
+struct Crate {
+    manifest: PathBuf,
+    name: String,
+    version: String,
+    next_version: String,
+}
+
+fn main() {
+    let mut crates = Vec::new();
+    crates.push(read_crate("./Cargo.toml".as_ref()));
+    find_crates("crates".as_ref(), &mut crates);
+
+    match &env::args().nth(1).expect("must have one argument")[..] {
+        "bump" => {
+            for krate in crates.iter() {
+                bump_version(&krate, &crates);
+            }
+        }
+
+        "publish" => {
+            for krate in crates.iter() {
+                publish(&krate);
+            }
+        }
+
+        s => panic!("unknown command: {}", s),
+    }
+}
+
+fn find_crates(dir: &Path, dst: &mut Vec<Crate>) {
+    if dir.join("Cargo.toml").exists() {
+        let krate = read_crate(&dir.join("Cargo.toml"));
+        if CRATES_TO_PUBLISH.iter()
+            .chain(CRATES_TO_AVOID_PUBLISH)
+            .any(|c| krate.name == *c)
+        {
+            dst.push(krate);
+        } else {
+            panic!("failed to find {:?} in whitelist or blacklist", krate.name);
+        }
+    }
+
+    for entry in dir.read_dir().unwrap() {
+        let entry = entry.unwrap();
+        if entry.file_type().unwrap().is_dir() {
+            find_crates(&entry.path(), dst);
+        }
+    }
+}
+
+fn read_crate(manifest: &Path) -> Crate {
+    let mut name = None;
+    let mut version = None;
+    for line in fs::read_to_string(manifest).unwrap().lines() {
+        if name.is_none() && line.starts_with("name = \"") {
+            name = Some(line.replace("name = \"", "")
+                .replace("\"", "")
+                .trim()
+                .to_string());
+        }
+        if version.is_none() && line.starts_with("version = \"") {
+            version = Some(line.replace("version = \"", "")
+                .replace("\"", "")
+                .trim()
+                .to_string());
+        }
+    }
+    let name = name.unwrap();
+    let version = version.unwrap();
+    let next_version = if CRATES_TO_PUBLISH.contains(&&name[..]) {
+        bump(&version)
+    } else {
+        version.clone()
+    };
+    Crate {
+        manifest: manifest.to_path_buf(),
+        name,
+        version,
+        next_version,
+    }
+}
+
+fn bump_version(krate: &Crate, crates: &[Crate]) {
+    let contents = fs::read_to_string(&krate.manifest).unwrap();
+
+    let mut new_manifest = String::new();
+    let mut is_deps = false;
+    for line in contents.lines() {
+        let mut rewritten = false;
+        if line.starts_with("version =") {
+            if CRATES_TO_PUBLISH.contains(&&krate.name[..]) {
+                println!("bump `{}` {} => {}",
+                         krate.name,
+                         krate.version,
+                         krate.next_version);
+                new_manifest.push_str(&line.replace(&krate.version, &krate.next_version));
+                rewritten = true;
+            }
+        }
+
+        is_deps = if line.starts_with("[") {
+            line.contains("dependencies")
+        } else {
+            is_deps
+        };
+
+        for other in crates {
+            if !is_deps || !line.starts_with(&format!("{} ", other.name)) {
+                continue
+            }
+            if !line.contains(&other.version) {
+                if !line.contains("version =") {
+                    continue
+                }
+                panic!("{:?} has a dep on {} but doesn't list version {}",
+                       krate.manifest,
+                       other.name,
+                       other.version);
+            }
+            rewritten = true;
+            new_manifest.push_str(&line.replace(&other.version, &other.next_version));
+            break
+        }
+        if !rewritten {
+            new_manifest.push_str(line);
+        }
+        new_manifest.push_str("\n");
+    }
+    fs::write(&krate.manifest, new_manifest).unwrap();
+}
+
+fn bump(version: &str) -> String {
+    let mut iter = version.split('.').map(|s| s.parse::<u32>().unwrap());
+    let major = iter.next().expect("major version");
+    let minor = iter.next().expect("minor version");
+    let patch = iter.next().expect("patch version");
+    format!("{}.{}.{}", major, minor, patch + 1)
+}
+
+fn publish(krate: &Crate) {
+    if !CRATES_TO_PUBLISH.iter().any(|s| *s == krate.name) {
+        return
+    }
+    let status = Command::new("cargo")
+        .arg("publish")
+        .current_dir(krate.manifest.parent().unwrap())
+        .arg("--no-verify")
+        .arg("--allow-dirty")
+        .status()
+        .expect("failed to run cargo");
+    if !status.success() {
+        println!("FAIL: failed to publish `{}`: {}", krate.name, status);
+    }
+}
diff --git a/src/cast.rs b/src/cast.rs
index 928283d3..f856761b 100644
--- a/src/cast.rs
+++ b/src/cast.rs
@@ -14,7 +14,7 @@ use JsValue;
 /// [rfc]: https://github.com/rustwasm/rfcs/pull/2
 pub trait JsCast
 where
-    Self: AsRef<JsValue> + AsMut<JsValue> + Into<JsValue>,
+    Self: AsRef<JsValue> + Into<JsValue>,
 {
     /// Test whether this JS value is an instance of the type `T`.
     ///
@@ -61,24 +61,6 @@ where
         }
     }
 
-    /// Performs a dynamic cast (checked at runtime) of this value into the
-    /// target type `T`.
-    ///
-    /// This method will return `None` is `self.is_instance_of::<T>()`
-    /// returns `false`, and otherwise it will return `Some(&mut T)`
-    /// manufactured with an unchecked cast (verified correct via the
-    /// `instanceof` operation).
-    fn dyn_mut<T>(&mut self) -> Option<&mut T>
-    where
-        T: JsCast,
-    {
-        if self.is_instance_of::<T>() {
-            Some(self.unchecked_mut())
-        } else {
-            None
-        }
-    }
-
     /// Performs a zero-cost unchecked cast into the specified type.
     ///
     /// This method will convert the `self` value to the type `T`, where both
@@ -111,24 +93,6 @@ where
         T::unchecked_from_js_ref(self.as_ref())
     }
 
-    /// Performs a zero-cost unchecked cast into a mutable reference to the
-    /// specified type.
-    ///
-    /// This method will convert the `self` value to the type `T`, where both
-    /// `self` and `T` are simple wrappers around `JsValue`. This method **does
-    /// not check whether `self` is an instance of `T`**. If used incorrectly
-    /// then this method may cause runtime exceptions in both Rust and JS, this
-    /// should be used with caution.
-    ///
-    /// This method, unlike `unchecked_into`, does not consume ownership of
-    /// `self` and instead works over a utable reference.
-    fn unchecked_mut<T>(&mut self) -> &mut T
-    where
-        T: JsCast,
-    {
-        T::unchecked_from_js_mut(self.as_mut())
-    }
-
     /// Performs a dynamic `instanceof` check to see whether the `JsValue`
     /// provided is an instance of this type.
     ///
@@ -152,14 +116,4 @@ where
     /// This is intended to be an internal implementation detail, you likely
     /// won't need to call this.
     fn unchecked_from_js_ref(val: &JsValue) -> &Self;
-
-    /// Performs a zero-cost unchecked conversion from a `&mut JsValue` into an
-    /// instance of `&mut Self`.
-    ///
-    /// Note the safety of this method, which basically means that `Self` must
-    /// be a newtype wrapper around `JsValue`.
-    ///
-    /// This is intended to be an internal implementation detail, you likely
-    /// won't need to call this.
-    fn unchecked_from_js_mut(val: &mut JsValue) -> &mut Self;
 }
diff --git a/src/closure.rs b/src/closure.rs
index b2afd680..633d35b1 100644
--- a/src/closure.rs
+++ b/src/closure.rs
@@ -7,6 +7,7 @@
 #![allow(const_err)] // FIXME(rust-lang/rust#52603)
 
 use std::cell::UnsafeCell;
+#[cfg(feature = "nightly")]
 use std::marker::Unsize;
 use std::mem::{self, ManuallyDrop};
 use std::prelude::v1::*;
@@ -90,6 +91,7 @@ impl<T> Closure<T>
     ///
     /// This is unfortunately pretty restrictive for now but hopefully some of
     /// these restrictions can be lifted in the future!
+    #[cfg(feature = "nightly")]
     pub fn new<F>(t: F) -> Closure<T>
         where F: Unsize<T> + 'static
     {
diff --git a/src/describe.rs b/src/describe.rs
index 34c90e2b..cbc0f7c9 100644
--- a/src/describe.rs
+++ b/src/describe.rs
@@ -41,6 +41,7 @@ tys! {
     OPTIONAL
 }
 
+#[inline(always)] // see `interpret.rs` in the the cli-support crate
 pub fn inform(a: u32) {
     unsafe { super::__wbindgen_describe(a) }
 }
@@ -130,8 +131,15 @@ if_std! {
     }
 }
 
-fn _cnt<T: WasmDescribe>() -> u32 {
-    1
+macro_rules! cnt {
+    () => (0);
+    (A) => (1);
+    (A B) => (2);
+    (A B C) => (3);
+    (A B C D) => (4);
+    (A B C D E) => (5);
+    (A B C D E F) => (6);
+    (A B C D E F G) => (7);
 }
 
 macro_rules! doit {
@@ -142,7 +150,7 @@ macro_rules! doit {
         {
             fn describe() {
                 inform(FUNCTION);
-                inform(0 $(+ _cnt::<$var>())*);
+                inform(cnt!($($var)*));
                 $(<$var as WasmDescribe>::describe();)*
                 inform(1);
                 <R as WasmDescribe>::describe();
@@ -154,7 +162,7 @@ macro_rules! doit {
         {
             fn describe() {
                 inform(FUNCTION);
-                inform(0 $(+ _cnt::<$var>())*);
+                inform(cnt!($($var)*));
                 $(<$var as WasmDescribe>::describe();)*
                 inform(0);
             }
@@ -166,7 +174,7 @@ macro_rules! doit {
         {
             fn describe() {
                 inform(FUNCTION);
-                inform(0 $(+ _cnt::<$var>())*);
+                inform(cnt!($($var)*));
                 $(<$var as WasmDescribe>::describe();)*
                 inform(1);
                 <R as WasmDescribe>::describe();
@@ -178,7 +186,7 @@ macro_rules! doit {
         {
             fn describe() {
                 inform(FUNCTION);
-                inform(0 $(+ _cnt::<$var>())*);
+                inform(cnt!($($var)*));
                 $(<$var as WasmDescribe>::describe();)*
                 inform(0);
             }
diff --git a/src/lib.rs b/src/lib.rs
index 6d0d33f1..d96b5993 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -5,9 +5,9 @@
 //! this crate and this crate also provides JS bindings through the `JsValue`
 //! interface.
 
-#![feature(use_extern_macros, unsize)]
 #![no_std]
 #![doc(html_root_url = "https://docs.rs/wasm-bindgen/0.2")]
+#![cfg_attr(feature = "nightly", feature(unsize))]
 
 #[cfg(feature = "serde-serialize")]
 extern crate serde;
@@ -370,11 +370,6 @@ impl JsCast for JsValue {
     fn instanceof(_val: &JsValue) -> bool { true }
     fn unchecked_from_js(val: JsValue) -> Self { val }
     fn unchecked_from_js_ref(val: &JsValue) -> &Self { val }
-    fn unchecked_from_js_mut(val: &mut JsValue) -> &mut Self { val }
-}
-
-impl AsMut<JsValue> for JsValue {
-    fn as_mut(&mut self) -> &mut JsValue { self }
 }
 
 impl AsRef<JsValue> for JsValue {
@@ -442,6 +437,8 @@ externs! {
     fn __wbindgen_json_parse(ptr: *const u8, len: usize) -> u32;
     fn __wbindgen_json_serialize(idx: u32, ptr: *mut *mut u8) -> usize;
     fn __wbindgen_jsval_eq(a: u32, b: u32) -> u32;
+
+    fn __wbindgen_memory() -> u32;
 }
 
 impl Clone for JsValue {
@@ -567,6 +564,13 @@ pub fn throw(s: &str) -> ! {
     }
 }
 
+/// Returns a handle to this wasm instance's `WebAssembly.Memory`
+pub fn memory() -> JsValue {
+    unsafe {
+        JsValue { idx: __wbindgen_memory() }
+    }
+}
+
 #[doc(hidden)]
 pub mod __rt {
     use core::cell::{Cell, UnsafeCell};
diff --git a/tests/crates/a/src/lib.rs b/tests/crates/a/src/lib.rs
index 04dde653..d39f7eee 100644
--- a/tests/crates/a/src/lib.rs
+++ b/tests/crates/a/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/tests/crates/b/src/lib.rs b/tests/crates/b/src/lib.rs
index 87f781da..c7876ed4 100644
--- a/tests/crates/b/src/lib.rs
+++ b/tests/crates/b/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/tests/headless.rs b/tests/headless.rs
index 70718911..6cb1449a 100644
--- a/tests/headless.rs
+++ b/tests/headless.rs
@@ -1,5 +1,4 @@
 #![cfg(target_arch = "wasm32")]
-#![feature(use_extern_macros)]
 
 extern crate wasm_bindgen_test;
 extern crate wasm_bindgen;
diff --git a/tests/no-std/test.rs b/tests/no-std/test.rs
index 4dc5c91e..a8e04ac8 100644
--- a/tests/no-std/test.rs
+++ b/tests/no-std/test.rs
@@ -4,7 +4,6 @@
 //! This doesn't actually run any tests, it's mostly a compile-time verification
 //! that things work.
 
-#![feature(use_extern_macros)]
 #![no_std]
 #![allow(dead_code)]
 
diff --git a/tests/non_wasm.rs b/tests/non_wasm.rs
index 7a8128f7..947dcf19 100644
--- a/tests/non_wasm.rs
+++ b/tests/non_wasm.rs
@@ -1,5 +1,3 @@
-#![feature(use_extern_macros)]
-
 extern crate wasm_bindgen;
 
 use wasm_bindgen::prelude::*;
diff --git a/tests/std-crate-no-std-dep.rs b/tests/std-crate-no-std-dep.rs
index 77a9a11e..e2b25037 100644
--- a/tests/std-crate-no-std-dep.rs
+++ b/tests/std-crate-no-std-dep.rs
@@ -2,7 +2,6 @@
 //! `wasm-bindgen` is compiled itself with the `std` feature and everything
 //! works out just fine.
 
-#![feature(use_extern_macros)]
 #![no_std]
 
 extern crate wasm_bindgen;
diff --git a/tests/wasm/api.rs b/tests/wasm/api.rs
index 1953929b..6b28d40d 100644
--- a/tests/wasm/api.rs
+++ b/tests/wasm/api.rs
@@ -1,5 +1,7 @@
+use wasm_bindgen::{self, JsCast};
 use wasm_bindgen_test::*;
 use wasm_bindgen::prelude::*;
+use js_sys::{WebAssembly, Uint8Array};
 
 #[wasm_bindgen(module = "tests/wasm/api.js")]
 extern {
@@ -135,3 +137,17 @@ fn null_keeps_working() {
     assert_null(JsValue::null());
     assert_null(JsValue::null());
 }
+
+#[wasm_bindgen_test]
+fn memory_accessor_appears_to_work() {
+    let data = 3u32;
+    let ptr = &data as *const u32 as u32;
+
+    let my_mem = wasm_bindgen::memory();
+    let mem = my_mem.dyn_into::<WebAssembly::Memory>().unwrap();
+    let buf = mem.buffer();
+    let slice = Uint8Array::new(&buf);
+    let mut v = Vec::new();
+    slice.subarray(ptr, ptr + 4).for_each(&mut |val, _, _| v.push(val));
+    assert_eq!(v, [3, 0, 0, 0]);
+}
diff --git a/tests/wasm/closures.rs b/tests/wasm/closures.rs
index 84794725..0b896a7e 100644
--- a/tests/wasm/closures.rs
+++ b/tests/wasm/closures.rs
@@ -1,3 +1,5 @@
+#![cfg(feature = "nightly")]
+
 use wasm_bindgen_test::*;
 use wasm_bindgen::prelude::*;
 use std::cell::Cell;
diff --git a/tests/wasm/duplicates.rs b/tests/wasm/duplicates.rs
index f35e6d37..60b17c82 100644
--- a/tests/wasm/duplicates.rs
+++ b/tests/wasm/duplicates.rs
@@ -6,6 +6,7 @@ pub mod same_function_different_locations_a {
     #[wasm_bindgen(module = "tests/wasm/duplicates_a.js")]
     extern {
         pub fn foo();
+        pub static bar: JsValue;
     }
 }
 
@@ -15,6 +16,7 @@ pub mod same_function_different_locations_b {
     #[wasm_bindgen(module = "tests/wasm/duplicates_a.js")]
     extern {
         pub fn foo();
+        pub static bar: JsValue;
     }
 }
 
@@ -22,6 +24,8 @@ pub mod same_function_different_locations_b {
 fn same_function_different_locations() {
     same_function_different_locations_a::foo();
     same_function_different_locations_b::foo();
+    assert_eq!(*same_function_different_locations_a::bar, 3);
+    assert_eq!(*same_function_different_locations_a::bar, 3);
 }
 
 pub mod same_function_different_modules_a {
@@ -30,6 +34,7 @@ pub mod same_function_different_modules_a {
     #[wasm_bindgen(module = "tests/wasm/duplicates_b.js")]
     extern {
         pub fn foo() -> bool;
+        pub static bar: JsValue;
     }
 }
 
@@ -39,6 +44,7 @@ pub mod same_function_different_modules_b {
     #[wasm_bindgen(module = "tests/wasm/duplicates_c.js")]
     extern {
         pub fn foo() -> bool;
+        pub static bar: JsValue;
     }
 }
 
@@ -46,4 +52,6 @@ pub mod same_function_different_modules_b {
 fn same_function_different_modules() {
     assert!(same_function_different_modules_a::foo());
     assert!(!same_function_different_modules_b::foo());
+    assert_eq!(*same_function_different_modules_a::bar, 4);
+    assert_eq!(*same_function_different_modules_b::bar, 5);
 }
diff --git a/tests/wasm/duplicates_a.js b/tests/wasm/duplicates_a.js
index ee5ebb32..e52f346b 100644
--- a/tests/wasm/duplicates_a.js
+++ b/tests/wasm/duplicates_a.js
@@ -1 +1,2 @@
 exports.foo = () => {};
+exports.bar = 3;
diff --git a/tests/wasm/duplicates_b.js b/tests/wasm/duplicates_b.js
index 00128ede..75263a24 100644
--- a/tests/wasm/duplicates_b.js
+++ b/tests/wasm/duplicates_b.js
@@ -1 +1,2 @@
 exports.foo = () => true;
+exports.bar = 4;
diff --git a/tests/wasm/duplicates_c.js b/tests/wasm/duplicates_c.js
index 90ca9240..601a99a5 100644
--- a/tests/wasm/duplicates_c.js
+++ b/tests/wasm/duplicates_c.js
@@ -1 +1,2 @@
 exports.foo = () => false;
+exports.bar = 5;
diff --git a/tests/wasm/import_class.js b/tests/wasm/import_class.js
index 6154d9ce..fa60847c 100644
--- a/tests/wasm/import_class.js
+++ b/tests/wasm/import_class.js
@@ -123,3 +123,11 @@ exports.run_rust_option_tests = function() {
   assert.strictEqual(wasm.rust_return_none(), undefined);
   assert.strictEqual(wasm.rust_return_some() === undefined, false);
 };
+
+exports.CatchConstructors = class {
+  constructor(x) {
+    if (x == 0) {
+      throw new Error('bad!');
+    }
+  }
+};
diff --git a/tests/wasm/import_class.rs b/tests/wasm/import_class.rs
index 06083ea2..64c97d14 100644
--- a/tests/wasm/import_class.rs
+++ b/tests/wasm/import_class.rs
@@ -76,6 +76,10 @@ extern {
     fn return_undefined() -> Option<Options>;
     fn return_some() -> Option<Options>;
     fn run_rust_option_tests();
+
+    type CatchConstructors;
+    #[wasm_bindgen(constructor, catch)]
+    fn new(x: u32) -> Result<CatchConstructors, JsValue>;
 }
 
 #[wasm_bindgen]
@@ -199,3 +203,9 @@ pub fn rust_return_none() -> Option<Options> {
 pub fn rust_return_some() -> Option<Options> {
     Some(Options::new())
 }
+
+#[wasm_bindgen_test]
+fn catch_constructors() {
+    assert!(CatchConstructors::new(0).is_err());
+    assert!(CatchConstructors::new(1).is_ok());
+}
diff --git a/tests/wasm/main.rs b/tests/wasm/main.rs
index 07cc2c5d..f101fe4a 100644
--- a/tests/wasm/main.rs
+++ b/tests/wasm/main.rs
@@ -1,6 +1,6 @@
 #![cfg(target_arch = "wasm32")]
-#![feature(use_extern_macros)]
 
+extern crate js_sys;
 extern crate wasm_bindgen_test;
 extern crate wasm_bindgen;
 extern crate wasm_bindgen_test_crate_a;
diff --git a/yarn.lock b/yarn.lock
deleted file mode 100644
index 6a305ac5..00000000
--- a/yarn.lock
+++ /dev/null
@@ -1,3655 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
-"@webassemblyjs/ast@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.5.13.tgz#81155a570bd5803a30ec31436bc2c9c0ede38f25"
-  dependencies:
-    "@webassemblyjs/helper-module-context" "1.5.13"
-    "@webassemblyjs/helper-wasm-bytecode" "1.5.13"
-    "@webassemblyjs/wast-parser" "1.5.13"
-    debug "^3.1.0"
-    mamacro "^0.0.3"
-
-"@webassemblyjs/floating-point-hex-parser@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.5.13.tgz#29ce0baa97411f70e8cce68ce9c0f9d819a4e298"
-
-"@webassemblyjs/helper-api-error@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-api-error/-/helper-api-error-1.5.13.tgz#e49b051d67ee19a56e29b9aa8bd949b5b4442a59"
-
-"@webassemblyjs/helper-buffer@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-buffer/-/helper-buffer-1.5.13.tgz#873bb0a1b46449231137c1262ddfd05695195a1e"
-  dependencies:
-    debug "^3.1.0"
-
-"@webassemblyjs/helper-code-frame@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-code-frame/-/helper-code-frame-1.5.13.tgz#1bd2181b6a0be14e004f0fe9f5a660d265362b58"
-  dependencies:
-    "@webassemblyjs/wast-printer" "1.5.13"
-
-"@webassemblyjs/helper-fsm@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-fsm/-/helper-fsm-1.5.13.tgz#cdf3d9d33005d543a5c5e5adaabf679ffa8db924"
-
-"@webassemblyjs/helper-module-context@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-module-context/-/helper-module-context-1.5.13.tgz#dc29ddfb51ed657655286f94a5d72d8a489147c5"
-  dependencies:
-    debug "^3.1.0"
-    mamacro "^0.0.3"
-
-"@webassemblyjs/helper-wasm-bytecode@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-bytecode/-/helper-wasm-bytecode-1.5.13.tgz#03245817f0a762382e61733146f5773def15a747"
-
-"@webassemblyjs/helper-wasm-section@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/helper-wasm-section/-/helper-wasm-section-1.5.13.tgz#efc76f44a10d3073b584b43c38a179df173d5c7d"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-buffer" "1.5.13"
-    "@webassemblyjs/helper-wasm-bytecode" "1.5.13"
-    "@webassemblyjs/wasm-gen" "1.5.13"
-    debug "^3.1.0"
-
-"@webassemblyjs/ieee754@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/ieee754/-/ieee754-1.5.13.tgz#573e97c8c12e4eebb316ca5fde0203ddd90b0364"
-  dependencies:
-    ieee754 "^1.1.11"
-
-"@webassemblyjs/leb128@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/leb128/-/leb128-1.5.13.tgz#ab52ebab9cec283c1c1897ac1da833a04a3f4cee"
-  dependencies:
-    long "4.0.0"
-
-"@webassemblyjs/utf8@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/utf8/-/utf8-1.5.13.tgz#6b53d2cd861cf94fa99c1f12779dde692fbc2469"
-
-"@webassemblyjs/wasm-edit@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-edit/-/wasm-edit-1.5.13.tgz#c9cef5664c245cf11b3b3a73110c9155831724a8"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-buffer" "1.5.13"
-    "@webassemblyjs/helper-wasm-bytecode" "1.5.13"
-    "@webassemblyjs/helper-wasm-section" "1.5.13"
-    "@webassemblyjs/wasm-gen" "1.5.13"
-    "@webassemblyjs/wasm-opt" "1.5.13"
-    "@webassemblyjs/wasm-parser" "1.5.13"
-    "@webassemblyjs/wast-printer" "1.5.13"
-    debug "^3.1.0"
-
-"@webassemblyjs/wasm-gen@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-gen/-/wasm-gen-1.5.13.tgz#8e6ea113c4b432fa66540189e79b16d7a140700e"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-wasm-bytecode" "1.5.13"
-    "@webassemblyjs/ieee754" "1.5.13"
-    "@webassemblyjs/leb128" "1.5.13"
-    "@webassemblyjs/utf8" "1.5.13"
-
-"@webassemblyjs/wasm-opt@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-opt/-/wasm-opt-1.5.13.tgz#147aad7717a7ee4211c36b21a5f4c30dddf33138"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-buffer" "1.5.13"
-    "@webassemblyjs/wasm-gen" "1.5.13"
-    "@webassemblyjs/wasm-parser" "1.5.13"
-    debug "^3.1.0"
-
-"@webassemblyjs/wasm-parser@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wasm-parser/-/wasm-parser-1.5.13.tgz#6f46516c5bb23904fbdf58009233c2dd8a54c72f"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/helper-api-error" "1.5.13"
-    "@webassemblyjs/helper-wasm-bytecode" "1.5.13"
-    "@webassemblyjs/ieee754" "1.5.13"
-    "@webassemblyjs/leb128" "1.5.13"
-    "@webassemblyjs/utf8" "1.5.13"
-
-"@webassemblyjs/wast-parser@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-parser/-/wast-parser-1.5.13.tgz#5727a705d397ae6a3ae99d7f5460acf2ec646eea"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/floating-point-hex-parser" "1.5.13"
-    "@webassemblyjs/helper-api-error" "1.5.13"
-    "@webassemblyjs/helper-code-frame" "1.5.13"
-    "@webassemblyjs/helper-fsm" "1.5.13"
-    long "^3.2.0"
-    mamacro "^0.0.3"
-
-"@webassemblyjs/wast-printer@1.5.13":
-  version "1.5.13"
-  resolved "https://registry.yarnpkg.com/@webassemblyjs/wast-printer/-/wast-printer-1.5.13.tgz#bb34d528c14b4f579e7ec11e793ec50ad7cd7c95"
-  dependencies:
-    "@webassemblyjs/ast" "1.5.13"
-    "@webassemblyjs/wast-parser" "1.5.13"
-    long "^3.2.0"
-
-abbrev@1:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
-
-accepts@~1.3.4, accepts@~1.3.5:
-  version "1.3.5"
-  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.5.tgz#eb777df6011723a3b14e8a72c0805c8e86746bd2"
-  dependencies:
-    mime-types "~2.1.18"
-    negotiator "0.6.1"
-
-acorn-dynamic-import@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/acorn-dynamic-import/-/acorn-dynamic-import-3.0.0.tgz#901ceee4c7faaef7e07ad2a47e890675da50a278"
-  dependencies:
-    acorn "^5.0.0"
-
-acorn@^5.0.0, acorn@^5.6.2:
-  version "5.7.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
-
-ajv-keywords@^3.1.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-3.2.0.tgz#e86b819c602cf8821ad637413698f1dec021847a"
-
-ajv@^6.1.0:
-  version "6.5.1"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.5.1.tgz#88ebc1263c7133937d108b80c5572e64e1d9322d"
-  dependencies:
-    fast-deep-equal "^2.0.1"
-    fast-json-stable-stringify "^2.0.0"
-    json-schema-traverse "^0.4.1"
-    uri-js "^4.2.1"
-
-ansi-escapes@^3.0.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.1.0.tgz#f73207bb81207d75fd6c83f125af26eea378ca30"
-
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-  version "0.0.7"
-  resolved "https://registry.yarnpkg.com/ansi-html/-/ansi-html-0.0.7.tgz#813584021962a9e9e6fd039f940d12f56ca7859e"
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-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-3.0.0.tgz#ed0317c322064f79466c02966bddb605ab37d998"
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-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
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-
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-2.0.0.tgz#bcb24b4f37934d9aa7ac17b4adaf89e7c76ef2eb"
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-    normalize-path "^2.1.1"
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-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
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-  version "1.1.5"
-  resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz#4b35c2944f062a8bfcda66410760350fe9ddfc21"
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-    readable-stream "^2.0.6"
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-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/arr-flatten/-/arr-flatten-1.1.0.tgz#36048bbff4e7b47e136644316c99669ea5ae91f1"
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-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/arr-union/-/arr-union-3.1.0.tgz#e39b09aea9def866a8f206e288af63919bae39c4"
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-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
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-  resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
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-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-2.1.1.tgz#426bb9da84090c1838d812c8150af20a8331e296"
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-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/array-includes/-/array-includes-3.0.3.tgz#184b48f62d92d7452bb31b323165c7f8bd02266d"
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-    es-abstract "^1.7.0"
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-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/array-union/-/array-union-1.0.2.tgz#9a34410e4f4e3da23dea375be5be70f24778ec39"
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-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/array-uniq/-/array-uniq-1.0.3.tgz#af6ac877a25cc7f74e058894753858dfdb24fdb6"
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-  version "0.3.2"
-  resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
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-  version "4.10.1"
-  resolved "https://registry.yarnpkg.com/asn1.js/-/asn1.js-4.10.1.tgz#b9c2bf5805f1e64aadeed6df3a2bfafb5a73f5a0"
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-    inherits "^2.0.1"
-    minimalistic-assert "^1.0.0"
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-  version "1.4.1"
-  resolved "https://registry.yarnpkg.com/assert/-/assert-1.4.1.tgz#99912d591836b5a6f5b345c0f07eefc08fc65d91"
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-
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.1.tgz#19d386a1d9edc6e7c1c85d388aedbcc56d33602d"
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-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
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-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.1.tgz#ae2d5a729477f289d60dd7f96a6314a22dd6c22a"
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
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-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.3.0.tgz#cab1e6118f051095e58b5281aea8c1cd22bfc0e3"
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-  resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
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-    class-utils "^0.3.5"
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-    isobject "^3.0.1"
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-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/batch/-/batch-0.6.1.tgz#dc34314f4e679318093fc760272525f94bf25c16"
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-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/big.js/-/big.js-3.2.0.tgz#a5fc298b81b9e0dca2e458824784b65c52ba588e"
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-  version "1.11.0"
-  resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.11.0.tgz#46aa1751fb6a2f93ee5e689bb1087d4b14c6c205"
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-  version "3.5.1"
-  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.1.tgz#d9551f9de98f1fcda1e683d17ee91a0602ee2eb9"
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-  version "4.11.8"
-  resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
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-  version "1.18.2"
-  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.18.2.tgz#87678a19d84b47d859b83199bd59bce222b10454"
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-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/bonjour/-/bonjour-3.5.0.tgz#8e890a183d8ee9a2393b3844c691a42bcf7bc9f5"
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-  version "1.1.11"
-  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
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-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.2.tgz#5979fd3f14cd531565e5fa2df1abfff1dfaee729"
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
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-  resolved "https://registry.yarnpkg.com/browserify-aes/-/browserify-aes-1.2.0.tgz#326734642f403dabc3003209853bb70ad428ef48"
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-  version "1.0.1"
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-    evp_bytestokey "^1.0.0"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/browserify-des/-/browserify-des-1.0.1.tgz#3343124db6d7ad53e26a8826318712bdc8450f9c"
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-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/browserify-rsa/-/browserify-rsa-4.0.1.tgz#21e0abfaf6f2029cf2fafb133567a701d4135524"
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-  version "4.0.4"
-  resolved "https://registry.yarnpkg.com/browserify-sign/-/browserify-sign-4.0.4.tgz#aa4eb68e5d7b658baa6bf6a57e630cbd7a93d298"
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-  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
-  dependencies:
-    chalk "^2.0.1"
-
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-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/loglevel/-/loglevel-1.6.1.tgz#e0fc95133b6ef276cdc8887cdaf24aa6f156f8fa"
-
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-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/loglevelnext/-/loglevelnext-1.0.5.tgz#36fc4f5996d6640f539ff203ba819641680d75a2"
-  dependencies:
-    es6-symbol "^3.1.1"
-    object.assign "^4.1.0"
-
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-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/long/-/long-4.0.0.tgz#9a7b71cfb7d361a194ea555241c92f7468d5bf28"
-
-long@^3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/long/-/long-3.2.0.tgz#d821b7138ca1cb581c172990ef14db200b5c474b"
-
-loud-rejection@^1.0.0, loud-rejection@^1.6.0:
-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
-  dependencies:
-    currently-unhandled "^0.4.1"
-    signal-exit "^3.0.0"
-
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-  version "4.1.3"
-  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.3.tgz#a1175cf3496dfc8436c156c334b4955992bce69c"
-  dependencies:
-    pseudomap "^1.0.2"
-    yallist "^2.1.2"
-
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-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.3.0.tgz#79c1033b80515bd6d24ec9933e860ca75ee27f0c"
-  dependencies:
-    pify "^3.0.0"
-
-mamacro@^0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/mamacro/-/mamacro-0.0.3.tgz#ad2c9576197c9f1abf308d0787865bd975a3f3e4"
-
-map-cache@^0.2.2:
-  version "0.2.2"
-  resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
-
-map-obj@^1.0.0, map-obj@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/map-obj/-/map-obj-1.0.1.tgz#d933ceb9205d82bdcf4886f6742bdc2b4dea146d"
-
-map-visit@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/map-visit/-/map-visit-1.0.0.tgz#ecdca8f13144e660f1b5bd41f12f3479d98dfb8f"
-  dependencies:
-    object-visit "^1.0.0"
-
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-  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/md5.js/-/md5.js-1.3.4.tgz#e9bdbde94a20a5ac18b04340fc5764d5b09d901d"
-  dependencies:
-    hash-base "^3.0.0"
-    inherits "^2.0.1"
-
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-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
-
-mem@^1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/mem/-/mem-1.1.0.tgz#5edd52b485ca1d900fe64895505399a0dfa45f76"
-  dependencies:
-    mimic-fn "^1.0.0"
-
-memory-fs@^0.4.0, memory-fs@~0.4.1:
-  version "0.4.1"
-  resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.4.1.tgz#3a9a20b8462523e447cfbc7e8bb80ed667bfc552"
-  dependencies:
-    errno "^0.1.3"
-    readable-stream "^2.0.1"
-
-meow@^3.3.0:
-  version "3.7.0"
-  resolved "https://registry.yarnpkg.com/meow/-/meow-3.7.0.tgz#72cb668b425228290abbfa856892587308a801fb"
-  dependencies:
-    camelcase-keys "^2.0.0"
-    decamelize "^1.1.2"
-    loud-rejection "^1.0.0"
-    map-obj "^1.0.1"
-    minimist "^1.1.3"
-    normalize-package-data "^2.3.4"
-    object-assign "^4.0.1"
-    read-pkg-up "^1.0.1"
-    redent "^1.0.0"
-    trim-newlines "^1.0.0"
-
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
-
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-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
-
-micromatch@^3.1.4, micromatch@^3.1.8, micromatch@^3.1.9:
-  version "3.1.10"
-  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
-  dependencies:
-    arr-diff "^4.0.0"
-    array-unique "^0.3.2"
-    braces "^2.3.1"
-    define-property "^2.0.2"
-    extend-shallow "^3.0.2"
-    extglob "^2.0.4"
-    fragment-cache "^0.2.1"
-    kind-of "^6.0.2"
-    nanomatch "^1.2.9"
-    object.pick "^1.3.0"
-    regex-not "^1.0.0"
-    snapdragon "^0.8.1"
-    to-regex "^3.0.2"
-
-miller-rabin@^4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/miller-rabin/-/miller-rabin-4.0.1.tgz#f080351c865b0dc562a8462966daa53543c78a4d"
-  dependencies:
-    bn.js "^4.0.0"
-    brorand "^1.0.1"
-
-"mime-db@>= 1.34.0 < 2":
-  version "1.34.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.34.0.tgz#452d0ecff5c30346a6dc1e64b1eaee0d3719ff9a"
-
-mime-db@~1.33.0:
-  version "1.33.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.33.0.tgz#a3492050a5cb9b63450541e39d9788d2272783db"
-
-mime-types@~2.1.17, mime-types@~2.1.18:
-  version "2.1.18"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.18.tgz#6f323f60a83d11146f831ff11fd66e2fe5503bb8"
-  dependencies:
-    mime-db "~1.33.0"
-
-mime@1.4.1:
-  version "1.4.1"
-  resolved "https://registry.yarnpkg.com/mime/-/mime-1.4.1.tgz#121f9ebc49e3766f311a76e1fa1c8003c4b03aa6"
-
-mime@^2.1.0:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/mime/-/mime-2.3.1.tgz#b1621c54d63b97c47d3cfe7f7215f7d64517c369"
-
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-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
-
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz#2e194de044626d4a10e7f7fbc00ce73e83e4d5c7"
-
-minimalistic-crypto-utils@^1.0.0, minimalistic-crypto-utils@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz#f6c00c1c0b082246e5c4d99dfb8c7c083b2b582a"
-
-minimatch@^3.0.2, minimatch@^3.0.4:
-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
-  dependencies:
-    brace-expansion "^1.1.7"
-
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-  version "0.0.8"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
-
-minimist@^1.1.3, minimist@^1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
-
-minipass@^2.2.1, minipass@^2.3.3:
-  version "2.3.3"
-  resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.3.3.tgz#a7dcc8b7b833f5d368759cce544dccb55f50f233"
-  dependencies:
-    safe-buffer "^5.1.2"
-    yallist "^3.0.0"
-
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.1.0.tgz#11e13658ce46bc3a70a267aac58359d1e0c29ceb"
-  dependencies:
-    minipass "^2.2.1"
-
-mississippi@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/mississippi/-/mississippi-2.0.0.tgz#3442a508fafc28500486feea99409676e4ee5a6f"
-  dependencies:
-    concat-stream "^1.5.0"
-    duplexify "^3.4.2"
-    end-of-stream "^1.1.0"
-    flush-write-stream "^1.0.0"
-    from2 "^2.1.0"
-    parallel-transform "^1.1.0"
-    pump "^2.0.1"
-    pumpify "^1.3.3"
-    stream-each "^1.1.0"
-    through2 "^2.0.0"
-
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-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.1.tgz#a49e7268dce1a0d9698e45326c5626df3543d0fe"
-  dependencies:
-    for-in "^1.0.2"
-    is-extendable "^1.0.1"
-
-mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
-  dependencies:
-    minimist "0.0.8"
-
-move-concurrently@^1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/move-concurrently/-/move-concurrently-1.0.1.tgz#be2c005fda32e0b29af1f05d7c4b33214c701f92"
-  dependencies:
-    aproba "^1.1.1"
-    copy-concurrently "^1.0.0"
-    fs-write-stream-atomic "^1.0.8"
-    mkdirp "^0.5.1"
-    rimraf "^2.5.4"
-    run-queue "^1.0.3"
-
-ms@2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
-
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/multicast-dns-service-types/-/multicast-dns-service-types-1.1.0.tgz#899f11d9686e5e05cb91b35d5f0e63b773cfc901"
-
-multicast-dns@^6.0.1:
-  version "6.2.3"
-  resolved "https://registry.yarnpkg.com/multicast-dns/-/multicast-dns-6.2.3.tgz#a0ec7bd9055c4282f790c3c82f4e28db3b31b229"
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-    dns-packet "^1.3.1"
-    thunky "^1.0.2"
-
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-  version "0.0.7"
-  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
-
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-  version "2.10.0"
-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
-
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-  version "1.2.9"
-  resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.9.tgz#879f7150cb2dab7a471259066c104eee6e0fa7c2"
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-    array-unique "^0.3.2"
-    define-property "^2.0.2"
-    extend-shallow "^3.0.2"
-    fragment-cache "^0.2.1"
-    is-odd "^2.0.0"
-    is-windows "^1.0.2"
-    kind-of "^6.0.2"
-    object.pick "^1.3.0"
-    regex-not "^1.0.0"
-    snapdragon "^0.8.1"
-    to-regex "^3.0.1"
-
-needle@^2.2.0:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/needle/-/needle-2.2.1.tgz#b5e325bd3aae8c2678902fa296f729455d1d3a7d"
-  dependencies:
-    debug "^2.1.2"
-    iconv-lite "^0.4.4"
-    sax "^1.2.4"
-
-negotiator@0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
-
-neo-async@^2.5.0:
-  version "2.5.1"
-  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.5.1.tgz#acb909e327b1e87ec9ef15f41b8a269512ad41ee"
-
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/next-tick/-/next-tick-1.0.0.tgz#ca86d1fe8828169b0120208e3dc8424b9db8342c"
-
-nice-try@^1.0.4:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.4.tgz#d93962f6c52f2c1558c0fbda6d512819f1efe1c4"
-
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-  version "0.7.5"
-  resolved "https://registry.yarnpkg.com/node-forge/-/node-forge-0.7.5.tgz#6c152c345ce11c52f465c2abd957e8639cd674df"
-
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-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/node-libs-browser/-/node-libs-browser-2.1.0.tgz#5f94263d404f6e44767d726901fff05478d600df"
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-    browserify-zlib "^0.2.0"
-    buffer "^4.3.0"
-    console-browserify "^1.1.0"
-    constants-browserify "^1.0.0"
-    crypto-browserify "^3.11.0"
-    domain-browser "^1.1.1"
-    events "^1.0.0"
-    https-browserify "^1.0.0"
-    os-browserify "^0.3.0"
-    path-browserify "0.0.0"
-    process "^0.11.10"
-    punycode "^1.2.4"
-    querystring-es3 "^0.2.0"
-    readable-stream "^2.3.3"
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-    stream-http "^2.7.2"
-    string_decoder "^1.0.0"
-    timers-browserify "^2.0.4"
-    tty-browserify "0.0.0"
-    url "^0.11.0"
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-    vm-browserify "0.0.4"
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-node-pre-gyp@^0.10.0:
-  version "0.10.0"
-  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.10.0.tgz#6e4ef5bb5c5203c6552448828c852c40111aac46"
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-    mkdirp "^0.5.1"
-    needle "^2.2.0"
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-    npm-packlist "^1.1.6"
-    npmlog "^4.0.2"
-    rc "^1.1.7"
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-    semver "^5.3.0"
-    tar "^4"
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-nopt@^4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
-  dependencies:
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-normalize-package-data@^2.3.2, normalize-package-data@^2.3.4:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.4.0.tgz#12f95a307d58352075a04907b84ac8be98ac012f"
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-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.1.1.tgz#1ab28b556e198363a8c1a6f7e6fa20137fe6aed9"
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-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/npm-bundled/-/npm-bundled-1.0.3.tgz#7e71703d973af3370a9591bafe3a63aca0be2308"
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-  version "1.1.10"
-  resolved "https://registry.yarnpkg.com/npm-packlist/-/npm-packlist-1.1.10.tgz#1039db9e985727e464df066f4cf0ab6ef85c398a"
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-npm-run-path@^2.0.0:
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
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-  version "4.1.2"
-  resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
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-number-is-nan@^1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
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-object-assign@^4.0.1, object-assign@^4.1.0:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
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-object-copy@^0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/object-copy/-/object-copy-0.1.0.tgz#7e7d858b781bd7c991a41ba975ed3812754e998c"
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-object-keys@^1.0.11, object-keys@^1.0.8:
-  version "1.0.12"
-  resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-1.0.12.tgz#09c53855377575310cca62f55bb334abff7b3ed2"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/object-visit/-/object-visit-1.0.1.tgz#f79c4493af0c5377b59fe39d395e41042dd045bb"
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-object.assign@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.yarnpkg.com/object.assign/-/object.assign-4.1.0.tgz#968bf1100d7956bb3ca086f006f846b3bc4008da"
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-    object-keys "^1.0.11"
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-object.pick@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/object.pick/-/object.pick-1.3.0.tgz#87a10ac4c1694bd2e1cbf53591a66141fb5dd747"
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-
-obuf@^1.0.0, obuf@^1.1.1:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/obuf/-/obuf-1.1.2.tgz#09bea3343d41859ebd446292d11c9d4db619084e"
-
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-  version "2.3.0"
-  resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
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-
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.1.tgz#928f5d0f470d49342651ea6794b0857c100693f7"
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-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
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-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
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-
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-  version "5.3.0"
-  resolved "https://registry.yarnpkg.com/opn/-/opn-5.3.0.tgz#64871565c863875f052cfdf53d3e3cb5adb53b1c"
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-
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/original/-/original-1.0.1.tgz#b0a53ff42ba997a8c9cd1fb5daaeb42b9d693190"
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-
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-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/os-browserify/-/os-browserify-0.3.0.tgz#854373c7f5c2315914fc9bfc6bd8238fdda1ec27"
-
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-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
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-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-2.1.0.tgz#42bc2900a6b5b8bd17376c8e882b65afccf24bf2"
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-    lcid "^1.0.0"
-    mem "^1.1.0"
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-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
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-  resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.5.tgz#85cdfafaeb28e8677f416e287592b5f3f49ea410"
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-    os-tmpdir "^1.0.0"
-
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
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-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-1.3.0.tgz#b86bd5f0c25690911c7590fcbfc2010d54b3ccb8"
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-
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.0.0.tgz#e624ed54ee8c460a778b3c9f3670496ff8a57aec"
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
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-    p-limit "^1.1.0"
-
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-3.0.0.tgz#322d69a05c0264b25997d9f40cd8a891ab0064a4"
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-
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-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
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-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.0.0.tgz#85080bb87c64688fa47996fe8f7dfbe8211760b1"
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-  version "1.0.6"
-  resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.6.tgz#0101211baa70c4bca4a0f63f2206e97b7dfaf258"
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/parallel-transform/-/parallel-transform-1.1.0.tgz#d410f065b05da23081fcd10f28854c29bda33b06"
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-  version "5.1.1"
-  resolved "https://registry.yarnpkg.com/parse-asn1/-/parse-asn1-5.1.1.tgz#f6bf293818332bd0dab54efb16087724745e6ca8"
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-    browserify-aes "^1.0.0"
-    create-hash "^1.1.0"
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-  version "2.2.0"
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-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
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-  version "0.0.0"
-  resolved "https://registry.yarnpkg.com/path-browserify/-/path-browserify-0.0.0.tgz#a0b870729aae214005b7d5032ec2cbbb0fb4451a"
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-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/path-dirname/-/path-dirname-1.0.2.tgz#cc33d24d525e099a5388c0336c6e32b9160609e0"
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-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-2.1.0.tgz#0feb6c64f0fc518d9a754dd5efb62c7022761f4b"
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-
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
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-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
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-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
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-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
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-    pify "^2.0.0"
-    pinkie-promise "^2.0.0"
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-  resolved "https://registry.yarnpkg.com/pbkdf2/-/pbkdf2-3.0.16.tgz#7404208ec6b01b62d85bf83853a8064f8d9c2a5c"
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-  resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/pify/-/pify-3.0.0.tgz#e5a4acd2c101fdf3d9a4d07f0dbc4db49dd28176"
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-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/pinkie-promise/-/pinkie-promise-2.0.1.tgz#2135d6dfa7a358c069ac9b178776288228450ffa"
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-  version "2.0.4"
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-  version "2.0.0"
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-  version "1.0.13"
-  resolved "https://registry.yarnpkg.com/portfinder/-/portfinder-1.0.13.tgz#bb32ecd87c27104ae6ee44b5a3ccbf0ebb1aede9"
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-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
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-  version "0.11.10"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/promise-inflight/-/promise-inflight-1.0.1.tgz#98472870bf228132fcbdd868129bad12c3c029e3"
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-  version "2.0.3"
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-  version "1.0.1"
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-  version "1.0.2"
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-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/public-encrypt/-/public-encrypt-4.0.2.tgz#46eb9107206bf73489f8b85b69d91334c6610994"
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-pump@^2.0.0, pump@^2.0.1:
-  version "2.0.1"
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-  version "1.3.2"
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-  version "1.4.1"
-  resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
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-  version "2.1.1"
-  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
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-  version "6.5.1"
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-  version "0.2.1"
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-  version "2.0.0"
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-  version "1.2.0"
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-"readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.4, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.2.9, readable-stream@^2.3.3, readable-stream@^2.3.6:
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-  version "1.1.0"
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-  version "1.1.2"
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-  version "1.6.1"
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-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/repeating/-/repeating-2.0.1.tgz#5214c53a926d3552707527fbab415dbc08d06dda"
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-  version "2.1.1"
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-  version "1.0.1"
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-  version "1.0.0"
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-  resolved "https://registry.yarnpkg.com/resolve-cwd/-/resolve-cwd-2.0.0.tgz#00a9f7387556e27038eae232caa372a6a59b665a"
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-3.0.0.tgz#b22c7af7d9d6881bc8b6e653335eebcb0a188748"
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-  version "0.2.1"
-  resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
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-    signal-exit "^3.0.2"
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-  resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
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-  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.2.tgz#2ed8150d24a16ea8651e6d6ef0f47c4158ce7a36"
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-  resolved "https://registry.yarnpkg.com/ripemd160/-/ripemd160-2.0.2.tgz#a1c1a6f624751577ba5d07914cbc92850585890c"
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-  resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
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-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/run-queue/-/run-queue-1.0.3.tgz#e848396f057d223f24386924618e25694161ec47"
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-  version "6.2.1"
-  resolved "https://registry.yarnpkg.com/rxjs/-/rxjs-6.2.1.tgz#246cebec189a6cbc143a3ef9f62d6f4c91813ca1"
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-  version "5.1.2"
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-  resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/select-hose/-/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"
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-  resolved "https://registry.yarnpkg.com/selfsigned/-/selfsigned-1.10.3.tgz#d628ecf9e3735f84e8bafba936b3cf85bea43823"
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-    depd "~1.1.2"
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-    decamelize "^2.0.0"
-    find-up "^3.0.0"
-    get-caller-file "^1.0.1"
-    os-locale "^2.0.0"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^2.0.0"
-    which-module "^2.0.0"
-    y18n "^3.2.1 || ^4.0.0"
-    yargs-parser "^10.1.0"