Enum wasmtime_environ::WasmHeapType

pub enum WasmHeapType {
    Extern,
    NoExtern,
    Func,
    ConcreteFunc(EngineOrModuleTypeIndex),
    NoFunc,
    Any,
    Eq,
    I31,
    Array,
    ConcreteArray(EngineOrModuleTypeIndex),
    Struct,
    ConcreteStruct(EngineOrModuleTypeIndex),
    None,
}

WebAssembly heap type – equivalent of wasmparser’s HeapType

Variants

Extern

NoExtern

Func

ConcreteFunc(EngineOrModuleTypeIndex)

NoFunc

Any

Eq

I31

Array

ConcreteArray(EngineOrModuleTypeIndex)

Struct

ConcreteStruct(EngineOrModuleTypeIndex)

None

Implementations

impl WasmHeapType

pub fn is_vmgcref_type(&self) -> bool

Is this a type that is represented as a VMGcRef?

pub fn is_vmgcref_type_and_not_i31(&self) -> bool

Is this a type that is represented as a VMGcRef and is additionally not an i31?

That is, is this a a type that actually refers to an object allocated in a GC heap?

pub fn top(&self) -> WasmHeapTopType

Get this type’s top type.

Trait Implementations

impl Clone for WasmHeapType

fn clone(&self) -> WasmHeapType

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for WasmHeapType

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WasmHeapType

fn deserialize<__D>( __deserializer: __D, ) -> Result<WasmHeapType, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for WasmHeapType

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

Formats the value using the given formatter.

impl From<WasmHeapTopType> for WasmHeapType

fn from(value: WasmHeapTopType) -> WasmHeapType

Converts to this type from the input type.

impl Hash for WasmHeapType

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for WasmHeapType

fn eq(&self, other: &WasmHeapType) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for WasmHeapType

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TypeTrace for WasmHeapType

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?

impl Copy for WasmHeapType

impl Eq for WasmHeapType

impl StructuralPartialEq for WasmHeapType