Struct FuncTranslator

pub struct FuncTranslator { /* private fields */ }

WebAssembly to Cranelift IR function translator.

A FuncTranslator is used to translate a binary WebAssembly function into Cranelift IR guided by a FuncEnvironment object. A single translator instance can be reused to translate multiple functions which will reduce heap allocation traffic.

Implementations

impl FuncTranslator

pub fn new() -> Self

Create a new translator.

pub fn context(&mut self) -> &mut FunctionBuilderContext

Returns the underlying FunctionBuilderContext that this translator uses.

pub fn translate_body<FE: FuncEnvironment + ?Sized>( &mut self, validator: &mut FuncValidator<impl WasmModuleResources>, body: FunctionBody<'_>, func: &mut Function, environ: &mut FE, ) -> WasmResult<()>

Translate a binary WebAssembly function from a FunctionBody.

See the WebAssembly specification.

The Cranelift IR function func should be completely empty except for the func.signature and func.name fields. The signature may contain special-purpose arguments which are not regarded as WebAssembly local variables. Any signature arguments marked as ArgumentPurpose::Normal are made accessible as WebAssembly local variables.