Enum Extern 

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

An external item to a WebAssembly module.

This is returned from Instance::exports or Instance::get_export.

Variants

Global(Global)

A WebAssembly global which acts like a Cell<T> of sorts, supporting get and set operations.

Table(Table)

A WebAssembly table which is an array of function references.

Memory(Memory)

A WebAssembly linear memory.

Func(Func)

A WebAssembly function which can be called.

Implementations

impl Extern

pub fn into_global(self) -> Option<Global>

Returns the underlying global variable if self is a global variable.

Returns None otherwise.

pub fn into_table(self) -> Option<Table>

Returns the underlying table if self is a table.

Returns None otherwise.

pub fn into_memory(self) -> Option<Memory>

Returns the underlying linear memory if self is a linear memory.

Returns None otherwise.

pub fn into_func(self) -> Option<Func>

Returns the underlying function if self is a function.

Returns None otherwise.

pub fn ty(&self, ctx: impl AsContext) -> ExternType

Returns the type associated with this Extern.

Panics

If this item does not belong to the store provided.

Trait Implementations

impl Clone for Extern

fn clone(&self) -> Extern

Returns a duplicate 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 From<Func> for Extern

fn from(func: Func) -> Self

Converts to this type from the input type.

impl From<Global> for Extern

fn from(global: Global) -> Self

Converts to this type from the input type.

impl From<Memory> for Extern

fn from(memory: Memory) -> Self

Converts to this type from the input type.

impl From<Table> for Extern

fn from(table: Table) -> Self

Converts to this type from the input type.

impl Copy for Extern