Merge branch 'master' into interpreter

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "parity-wasm"
-version = "0.3.0"
+version = "0.4.2"
 authors = ["NikVolf <nikvolf@gmail.com>"]
 license = "MIT/Apache-2.0"
 readme = "README.md"

src/builder/code.rs

@@ -202,7 +202,6 @@ impl<F> FuncBodyBuilder<F> {
 }
 
 impl<F> FuncBodyBuilder<F> where F: Invoke<elements::FuncBody> {
-
     pub fn with_func(mut self, func: elements::FuncBody) -> Self {
         self.body = func;
         self

src/builder/export.rs

@@ -0,0 +1,102 @@
+use super::invoke::{Invoke, Identity};
+use elements;
+
+pub struct ExportBuilder<F=Identity> {
+    callback: F,
+    field: String,
+    binding: elements::Internal,
+}
+
+impl ExportBuilder {
+    pub fn new() -> Self {
+        ExportBuilder::with_callback(Identity)
+    }
+}
+
+impl<F> ExportBuilder<F> {
+
+    pub fn with_callback(callback: F) -> Self {
+        ExportBuilder {
+            callback: callback,
+            field: String::new(),
+            binding: elements::Internal::Function(0),
+        }
+    }
+
+    pub fn field(mut self, field: &str) -> Self {
+        self.field = field.to_owned();
+        self
+    }
+
+    pub fn with_internal(mut self, external: elements::Internal) -> Self {
+        self.binding = external;
+        self
+    }
+
+    pub fn internal(self) -> ExportInternalBuilder<Self> {
+        ExportInternalBuilder::with_callback(self)
+    }
+}
+
+impl<F> ExportBuilder<F> where F: Invoke<elements::ExportEntry> {
+    pub fn build(self) -> F::Result {
+        self.callback.invoke(elements::ExportEntry::new(self.field, self.binding))
+    }
+}
+
+impl<F> Invoke<elements::Internal> for ExportBuilder<F> {
+    type Result = Self;
+    fn invoke(self, val: elements::Internal) -> Self {
+        self.with_internal(val)
+    }
+}
+
+pub struct ExportInternalBuilder<F=Identity> {
+    callback: F,
+    binding: elements::Internal,
+}
+
+impl<F> ExportInternalBuilder<F> where F: Invoke<elements::Internal> {
+    pub fn with_callback(callback: F) -> Self {
+        ExportInternalBuilder{
+            callback: callback,
+            binding: elements::Internal::Function(0),
+        }
+    }
+
+    pub fn func(mut self, index: u32) -> F::Result {
+        self.binding = elements::Internal::Function(index);
+        self.callback.invoke(self.binding)
+    }
+
+    pub fn memory(mut self, index: u32) -> F::Result {
+        self.binding = elements::Internal::Memory(index);
+        self.callback.invoke(self.binding)
+    }
+
+    pub fn table(mut self, index: u32) -> F::Result {
+        self.binding = elements::Internal::Table(index);
+        self.callback.invoke(self.binding)
+    }
+
+    pub fn global(mut self, index: u32) -> F::Result {
+        self.binding = elements::Internal::Global(index);
+        self.callback.invoke(self.binding)
+    }
+}
+
+/// New builder for export entry
+pub fn export() -> ExportBuilder {
+    ExportBuilder::new()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::export;
+
+    #[test]
+    fn example() {
+        let entry = export().field("memory").internal().memory(0).build();
+        assert_eq!(entry.field(), "memory");
+    }
+}

src/builder/global.rs

@@ -0,0 +1,83 @@
+use super::invoke::{Invoke, Identity};
+use super::misc::ValueTypeBuilder;
+use elements;
+
+pub struct GlobalBuilder<F=Identity> {
+    callback: F,
+    value_type: elements::ValueType,
+    is_mutable: bool,
+    init_expr: elements::InitExpr,
+}
+
+impl GlobalBuilder {
+    pub fn new() -> Self {
+        GlobalBuilder::with_callback(Identity)
+    }
+}
+
+impl<F> GlobalBuilder<F> {
+    pub fn with_callback(callback: F) -> Self {
+        GlobalBuilder {
+            callback: callback,
+            value_type: elements::ValueType::I32,
+            init_expr: elements::InitExpr::empty(),
+            is_mutable: false,
+        }
+    }
+
+    pub fn with_type(mut self, value_type: elements::ValueType) -> Self {
+        self.value_type = value_type;
+        self
+    }
+
+    pub fn mutable(mut self) -> Self {
+        self.is_mutable = true;
+        self
+    }
+
+    pub fn init_expr(mut self, opcode: elements::Opcode) -> Self {
+        self.init_expr = elements::InitExpr::new(vec![opcode, elements::Opcode::End]);
+        self
+    }
+
+    pub fn value_type(self) -> ValueTypeBuilder<Self> {
+        ValueTypeBuilder::with_callback(self)
+    }
+}
+
+impl<F> GlobalBuilder<F> where F: Invoke<elements::GlobalEntry> {
+    pub fn build(self) -> F::Result {
+        self.callback.invoke(
+            elements::GlobalEntry::new(
+                elements::GlobalType::new(self.value_type, self.is_mutable), 
+                self.init_expr,
+            )
+        )
+    }
+}
+
+
+impl<F> Invoke<elements::ValueType> for GlobalBuilder<F> {
+    type Result = Self;
+    fn invoke(self, the_type: elements::ValueType) -> Self {
+        self.with_type(the_type)
+    }
+}
+
+/// New builder for export entry
+pub fn global() -> GlobalBuilder {
+    GlobalBuilder::new()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::global;
+    use elements;
+
+    #[test]
+    fn example() {
+        let entry = global().value_type().i32().build();
+        assert_eq!(entry.global_type().content_type(), elements::ValueType::I32);
+        assert_eq!(entry.global_type().is_mutable(), false);
+    }
+}

src/builder/mod.rs

@@ -7,7 +7,11 @@ mod misc;
 mod import;
 mod memory;
 mod table;
+mod export;
+mod global;
 
 pub use self::module::{module, from_module, ModuleBuilder};
 pub use self::code::{signatures, signature, function};
-pub use self::import::import;
+pub use self::import::import;
+pub use self::export::export;
+pub use self::global::global;

src/builder/module.rs

@@ -2,7 +2,7 @@ use super::invoke::{Invoke, Identity};
 use super::code::{self, SignaturesBuilder, FunctionBuilder};
 use super::memory::{self, MemoryBuilder};
 use super::table::{self, TableBuilder};
-use super::import;
+use super::{import, export, global};
 use elements;
 
 /// Module builder
@@ -305,6 +305,16 @@ impl<F> ModuleBuilder<F> where F: Invoke<elements::Module> {
         self
     }
 
+    /// Export entry builder
+    pub fn export(self) -> export::ExportBuilder<Self> {
+        export::ExportBuilder::with_callback(self)
+    }
+
+    /// Glboal entry builder
+    pub fn global(self) -> global::GlobalBuilder<Self> {
+        global::GlobalBuilder::with_callback(self)
+    }
+
     /// Build module (final step)
     pub fn build(self) -> F::Result {
         self.callback.invoke(self.module.into())
@@ -378,6 +388,26 @@ impl<F> Invoke<elements::ImportEntry> for ModuleBuilder<F>
     }
 }
 
+impl<F> Invoke<elements::ExportEntry> for ModuleBuilder<F>
+    where F: Invoke<elements::Module> 
+{
+    type Result = Self;
+
+    fn invoke(self, entry: elements::ExportEntry) -> Self::Result {
+        self.with_export(entry)
+    }
+}
+
+impl<F> Invoke<elements::GlobalEntry> for ModuleBuilder<F>
+    where F: Invoke<elements::Module> 
+{
+    type Result = Self;
+
+    fn invoke(self, entry: elements::GlobalEntry) -> Self::Result {
+        self.with_global(entry)
+    }
+}
+
 /// Start new module builder
 pub fn module() -> ModuleBuilder {
     ModuleBuilder::new()
@@ -413,4 +443,21 @@ mod tests {
         assert_eq!(module.code_section().expect("code section to exist").bodies().len(), 1);
     }
 
-}
+    #[test]
+    fn export() {
+        let module = module()
+            .export().field("call").internal().func(0).build()
+            .build();
+
+        assert_eq!(module.export_section().expect("export section to exist").entries().len(), 1);
+    }
+
+    #[test]
+    fn global() {
+        let module = module()
+            .global().value_type().i64().mutable().init_expr(::elements::Opcode::I64Const(5)).build()
+            .build();
+
+        assert_eq!(module.global_section().expect("global section to exist").entries().len(), 1);        
+    }
+ }

src/elements/export_entry.rs

@@ -55,19 +55,23 @@ pub struct ExportEntry {
 }
 
 impl ExportEntry {
-    /// Create new export entry
+    /// New export entry
     pub fn new(field: String, internal: Internal) -> Self {
-        Self {
+        ExportEntry {
             field_str: field,
-            internal: internal,
+            internal: internal
         }
     }
+
     /// Public name
     pub fn field(&self) -> &str { &self.field_str }
+
     /// Public name (mutable)
     pub fn field_mut(&mut self) -> &mut str { &mut self.field_str }
+
     /// Internal reference of the export entry.
     pub fn internal(&self) -> &Internal { &self.internal }
+
     /// Internal reference of the export entry (mutable).    
     pub fn internal_mut(&mut self) -> &mut Internal { &mut self.internal }
 }

src/elements/func.rs

@@ -15,6 +15,11 @@ impl Func {
     pub fn type_ref(&self) -> u32 {
         self.0
     }
+
+    /// Function signature type reference (mutable).
+    pub fn type_ref_mut(&mut self) -> &mut u32 {
+        &mut self.0
+    }
 }
 
 /// Local definition inside the function body.

src/elements/global_entry.rs

@@ -8,7 +8,7 @@ pub struct GlobalEntry {
 }
 
 impl GlobalEntry {
-    /// Create new global.
+    /// New global entry
     pub fn new(global_type: GlobalType, init_expr: InitExpr) -> Self {
         GlobalEntry {
             global_type: global_type,
@@ -19,6 +19,10 @@ impl GlobalEntry {
     pub fn global_type(&self) -> &GlobalType { &self.global_type }
     /// Initialization expression (opcodes) for global.
     pub fn init_expr(&self) -> &InitExpr { &self.init_expr }
+    /// Global type (mutable)
+    pub fn global_type_mut(&mut self) -> &mut GlobalType { &mut self.global_type }
+    /// Initialization expression (opcodes) for global (mutable)
+    pub fn init_expr_mut(&mut self) -> &mut InitExpr { &mut self.init_expr }
 }
 
 impl Deserialize for GlobalEntry {

src/elements/import_entry.rs

@@ -271,7 +271,7 @@ impl ImportEntry {
     pub fn external(&self) -> &External { &self.external }
 
     /// Local binidng of the import entry (mutable)
-    pub fn external_mut(&mut self) -> &External { &mut self.external }    
+    pub fn external_mut(&mut self) -> &mut External { &mut self.external }    
 }
 
 impl Deserialize for ImportEntry {

src/elements/module.rs

@@ -2,7 +2,7 @@ use std::io;
 use super::{Deserialize, Serialize, Error, Uint32};
 use super::section::{
     Section, CodeSection, TypeSection, ImportSection, ExportSection, FunctionsSection,
-    GlobalSection, TableSection, ElementSection, DataSection, MemorySection,
+    GlobalSection, TableSection, ElementSection, DataSection, MemorySection
 };
 
 /// WebAssembly module

src/elements/ops.rs

@@ -67,6 +67,11 @@ impl InitExpr {
     pub fn code(&self) -> &[Opcode] {
         &self.0
     }
+
+    /// List of opcodes used in the expression.
+    pub fn code_mut(&mut self) -> &mut Vec<Opcode> {
+        &mut self.0
+    }    
 }
 
 // todo: check if kind of opcode sequence is valid as an expression

src/elements/section.rs

@@ -410,7 +410,7 @@ impl GlobalSection {
         &self.0
     }
 
-    /// Mutable list of all global entries in the section
+    /// List of all global entries in the section (mutable)
     pub fn entries_mut(&mut self) -> &mut Vec<GlobalEntry> {
         &mut self.0
     }
@@ -549,10 +549,10 @@ impl ElementSection {
         &self.0
     }
 
-    /// Mutable elements entries in the section
+    /// List of all data entries in the section (mutable)
     pub fn entries_mut(&mut self) -> &mut Vec<ElementSegment> {
         &mut self.0
-    }
+    }    
 }
 
 impl Deserialize for ElementSection {
@@ -597,7 +597,7 @@ impl DataSection {
         &self.0
     }
 
-    /// Mutable list of all data entries in the section
+    /// List of all data entries in the section (mutable)
     pub fn entries_mut(&mut self) -> &mut Vec<DataSegment> {
         &mut self.0
     }

src/elements/segment.rs

@@ -18,11 +18,17 @@ impl ElementSegment {
     /// Sequence of function indices.
     pub fn members(&self) -> &[u32] { &self.members }
 
+    /// Sequence of function indices (mutable)
+    pub fn members_mut(&mut self) -> &mut Vec<u32> { &mut self.members }
+
     /// Table index (currently valid only value of `0`)
     pub fn index(&self) -> u32 { self.index }
 
     /// An i32 initializer expression that computes the offset at which to place the elements.
     pub fn offset(&self) -> &InitExpr { &self.offset }
+
+    /// An i32 initializer expression that computes the offset at which to place the elements (mutable)
+    pub fn offset_mut(&mut self) -> &mut InitExpr { &mut self.offset }
 }
 
 impl Deserialize for ElementSegment {
@@ -80,10 +86,18 @@ impl DataSegment {
 
     /// Linear memory index (currently the only valid value is `0`).
     pub fn index(&self) -> u32 { self.index }
+
     /// An i32 initializer expression that computes the offset at which to place the data.
     pub fn offset(&self) -> &InitExpr { &self.offset }   
+
+    /// An i32 initializer expression that computes the offset at which to place the data (mutable)
+    pub fn offset_mut(&mut self) -> &mut InitExpr { &mut self.offset }   
+
     /// Initial value of the data segment.
     pub fn value(&self) -> &[u8] { &self.value }
+
+    /// Initial value of the data segment (mutable).
+    pub fn value_mut(&mut self) -> &mut Vec<u8> { &mut self.value }
 }
 
 impl Deserialize for DataSegment {