Struct winch_codegen::FuncEnv

pub struct FuncEnv<'a, 'translation: 'a, 'data: 'translation, P: PtrSize> {
    pub vmoffsets: &'a VMOffsets<P>,
    pub translation: &'translation ModuleTranslation<'data>,
    pub types: &'translation ModuleTypesBuilder,
    /* private fields */
}

The function environment.

Contains all information about the module and runtime that is accessible to to a particular function during code generation.

Fields

vmoffsets: &'a VMOffsets<P>

Offsets to the fields within the VMContext ptr.

translation: &'translation ModuleTranslation<'data>

Metadata about the translation process of a WebAssembly module.

types: &'translation ModuleTypesBuilder

The module’s function types.

Implementations

impl<'a, 'translation, 'data, P: PtrSize> FuncEnv<'a, 'translation, 'data, P>

pub fn new( vmoffsets: &'a VMOffsets<P>, translation: &'translation ModuleTranslation<'data>, types: &'translation ModuleTypesBuilder ) -> Self

Create a new function environment.

pub fn funcref(&self, idx: TypeIndex) -> Callee

Resolves a [Callee::FuncRef] from a type index.

pub fn callee_from_index(&self, idx: FuncIndex) -> Callee

Resolves a function [Callee] from an index.

pub fn resolve_global_type_and_offset( &self, index: GlobalIndex ) -> (WasmType, u32)

Resolves the type and offset of a global at the given index.

pub fn resolve_table_data(&mut self, index: TableIndex) -> TableData

Returns the table information for the given table index.

pub fn resolve_heap(&mut self, index: MemoryIndex) -> HeapData

Resolved a [HeapData] from a MemoryIndex.

pub fn table_plan(&mut self, index: TableIndex) -> &TablePlan

Get a TablePlan from a TableIndex.

Trait Implementations

impl<P: PtrSize> TypeConvert for FuncEnv<'_, '_, '_, P>

fn lookup_heap_type(&self, idx: UnpackedIndex) -> WasmHeapType

Converts the specified type index from a heap type into a canonicalized heap type.

fn convert_global_type(&self, ty: &GlobalType) -> Global

Converts a wasmparser table type into a wasmtime type

fn convert_table_type(&self, ty: &TableType) -> Table

Converts a wasmparser table type into a wasmtime type

fn convert_func_type(&self, ty: &FuncType) -> WasmFuncType

Converts a wasmparser function type to a wasmtime type

fn convert_valtype(&self, ty: ValType) -> WasmType

Converts a wasmparser value type to a wasmtime type

fn convert_ref_type(&self, ty: RefType) -> WasmRefType

Converts a wasmparser reference type to a wasmtime type

fn convert_heap_type(&self, ty: HeapType) -> WasmHeapType

Converts a wasmparser heap type to a wasmtime type