Struct wasmer_types::VMExternRef

#[repr(transparent)]
pub struct VMExternRef(_);

This type does not do reference counting automatically, reference counting can be done with Self::ref_clone and Self::ref_drop.

Implementations

impl VMExternRef

pub fn is_null(&self) -> bool

Checks if the given ExternRef is null.

pub const fn null() -> Self

New null extern ref

pub fn new<T>(value: T) -> Selfwhere T: Any + Send + Sync + 'static + Sized,

Make a new extern reference

pub fn downcast<T>(&self) -> Option<&T>where T: Any + Send + Sync + 'static + Sized,

Try to downcast to the given value

pub fn ref_inc_by(&self, val: usize)

A low-level function to increment the strong-count a given number of times.

This is used as an optimization when implementing some low-level VM primitives. If you’re using this type directly for whatever reason, you probably want Self::ref_clone instead.

pub fn ref_clone(&self) -> Self

A deep copy of the reference, increments the strong count.

pub fn ref_drop(&mut self)

Does an inner drop, decrementing the strong count

Trait Implementations

impl Clone for VMExternRef

fn clone(&self) -> VMExternRef

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for VMExternRef

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

Formats the value using the given formatter.

impl From<ExternRef> for VMExternRef

fn from(other: ExternRef) -> Self

Converts to this type from the input type.

impl From<VMExternRef> for ExternRef

fn from(other: VMExternRef) -> Self

Converts to this type from the input type.

impl NativeWasmType for VMExternRef

const WASM_TYPE: Type = Type::ExternRef

Type for this NativeWasmType.

type Abi = VMExternRef

The ABI for this type (i32, i64, f32, f64)

fn to_binary(self) -> i128

Convert self to i128 binary representation.

fn from_binary(bits: i128) -> Self

Convert to self from i128 binary representation.

fn to_value<T: WasmValueType>(self) -> Value<T>

Convert self to a Value.

impl PartialEq<VMExternRef> for VMExternRef

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Copy for VMExternRef

impl Eq for VMExternRef

impl StructuralEq for VMExternRef

impl StructuralPartialEq for VMExternRef