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Redesign import namespaces

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This commit is contained in:
Lachlan Sneff
2019-01-12 16:24:17 -05:00
parent 8a0ea0b66d
commit 80a1fce329
6 changed files with 72 additions and 62 deletions
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22
lib/runtime/examples/simple/main.rs
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@ -1,3 +1,4 @@
use hashbrown::HashMap;
use std::rc::Rc;
use wabt::wat2wasm;
use wasmer_clif_backend::CraneliftCompiler;
@ -15,9 +16,8 @@ fn main() -> Result<(), String> {
let wasm_binary = wat2wasm(IMPORT_MODULE.as_bytes()).expect("WAST not valid or malformed");
let inner_module = runtime::compile(&wasm_binary, &CraneliftCompiler::new())?;
let mut imports = Imports::new();
imports.register_export(
"env",
let mut env_namespace = HashMap::new();
env_namespace.insert(
"print_i32",
Export::Function {
func: unsafe { FuncRef::new(print_num as _) },
@ -28,13 +28,15 @@ fn main() -> Result<(), String> {
},
},
);
let mut imports = Imports::new();
imports.register("env", env_namespace);
let imports = Rc::new(imports);
let inner_instance = inner_module.instantiate(imports)?;
let mut outer_imports = Imports::new();
outer_imports.register_instance("env", inner_instance);
outer_imports.register("env", inner_instance);
let outer_imports = Rc::new(outer_imports);
let outer_module = runtime::compile(EXAMPLE_WASM, &CraneliftCompiler::new())?;
let mut outer_instance = outer_module.instantiate(outer_imports)?;
@ -57,15 +59,3 @@ static IMPORT_MODULE: &str = r#"
get_local $p0
call $print_i32))
"#;
fn generate_imports() -> Rc<Imports> {
let wasm_binary = wat2wasm(IMPORT_MODULE.as_bytes()).expect("WAST not valid or malformed");
let module = wasmer_runtime::compile(&wasm_binary[..], &CraneliftCompiler::new())
.expect("WASM can't be compiled");
let instance = module
.instantiate(Rc::new(Imports::new()))
.expect("WASM can't be instantiated");
let mut imports = Imports::new();
imports.register_instance("env", instance);
Rc::new(imports)
}