Struct FunctionType 

pub struct FunctionType {
    pub signature: EngineOrModuleTypeIndex,
    pub func_ref: FuncRefIndex,
}

Type information about functions in a wasm module.

Fields

signature: EngineOrModuleTypeIndex

The type of this function, indexed into the module-wide type tables for a module compilation.

func_ref: FuncRefIndex

The index into the funcref table, if present. Note that this is reserved_value() if the function does not escape from a module.

Implementations

impl FunctionType

pub fn is_escaping(&self) -> bool

Returns whether this function’s type is one that “escapes” the current module, meaning that the function is exported, used in ref.func, used in a table, etc.

Trait Implementations

impl Debug for FunctionType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FunctionType

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for FunctionType

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TypeTrace for FunctionType

fn trace<F, E>(&self, func: &mut F) -> Result<(), E>

where F: FnMut(EngineOrModuleTypeIndex) -> Result<(), E>,

Visit each edge.

fn trace_mut<F, E>(&mut self, func: &mut F) -> Result<(), E>

where F: FnMut(&mut EngineOrModuleTypeIndex) -> Result<(), E>,

Visit each edge, mutably.

fn trace_engine_indices<F, E>(&self, func: &mut F) -> Result<(), E>

where F: FnMut(VMSharedTypeIndex) -> Result<(), E>,

Trace all VMSharedTypeIndex edges, ignoring other edges.

fn canonicalize_for_runtime_usage<F>(&mut self, module_to_engine: &mut F)

where F: FnMut(ModuleInternedTypeIndex) -> VMSharedTypeIndex,

Canonicalize self by rewriting all type references inside self from module-level interned type indices to engine-level interned type indices.

fn is_canonicalized_for_runtime_usage(&self) -> bool

Is this type canonicalized for runtime usage?

fn canonicalize_for_hash_consing<F>( &mut self, rec_group_range: Range<ModuleInternedTypeIndex>, module_to_engine: &mut F, )

where F: FnMut(ModuleInternedTypeIndex) -> VMSharedTypeIndex,

Canonicalize self by rewriting all type references inside self from module-level interned type indices to either engine-level interned type indices or recgroup-relative indices.

fn is_canonicalized_for_hash_consing(&self) -> bool

Is this type canonicalized for hash consing?