Enum Extern

pub enum Extern {
    Function(Function),
    Global(Global),
    Table(Table),
    Memory(Memory),
}

An Extern is the runtime representation of an entity that can be imported or exported.

Spec: https://webassembly.github.io/spec/core/exec/runtime.html#external-values

Variants

Function(Function)

A external Function.

Global(Global)

A external Global.

Table(Table)

A external Table.

Memory(Memory)

A external Memory.

Implementations

impl Extern

pub fn ty(&self, store: &impl AsStoreRef) -> ExternType

Return the underlying type of the inner Extern.

pub fn from_vm_extern(store: &mut impl AsStoreMut, vm_extern: VMExtern) -> Self

Create an Extern from an wasmer_engine::Export.

pub fn is_from_store(&self, store: &impl AsStoreRef) -> bool

Checks whether this Extern can be used with the given context.

pub fn to_vm_extern(&self) -> VMExtern

To VMExtern.

Trait Implementations

impl Clone for Extern

fn clone(&self) -> Extern

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Extern

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

Formats the value using the given formatter.

impl<'a> Exportable<'a> for Extern

fn get_self_from_extern(_extern: &'a Self) -> Result<&'a Self, ExportError>

Implementation of how to get the export corresponding to the implementing type from an Instance by name.

impl From<Function> for Extern

fn from(r: Function) -> Self

Converts to this type from the input type.

impl From<Global> for Extern

fn from(r: Global) -> Self

Converts to this type from the input type.

impl From<Memory> for Extern

fn from(r: Memory) -> Self

Converts to this type from the input type.

impl From<Table> for Extern

fn from(r: Table) -> Self

Converts to this type from the input type.

impl PartialEq for Extern

fn eq(&self, other: &Extern) -> 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 Eq for Extern

impl StructuralPartialEq for Extern