[][src]Enum wasmtime::Extern

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

An external item to a WebAssembly module, or a list of what can possibly be exported from a wasm module.

This is both returned from Instance::exports as well as required by Instance::new. In other words, this is the type of extracted values from an instantiated module, and it's also used to provide imported values when instantiating a module.

Variants

Func(Func)

A WebAssembly func which can be called.

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 Val types.

Memory(Memory)

A WebAssembly linear memory.

Implementations

impl Extern[src]

pub fn into_func(self) -> Option<Func>[src]

Returns the underlying Func, if this external is a function.

Returns None if this is not a function.

pub fn into_global(self) -> Option<Global>[src]

Returns the underlying Global, if this external is a global.

Returns None if this is not a global.

pub fn into_table(self) -> Option<Table>[src]

Returns the underlying Table, if this external is a table.

Returns None if this is not a table.

pub fn into_memory(self) -> Option<Memory>[src]

Returns the underlying Memory, if this external is a memory.

Returns None if this is not a memory.

pub fn ty(&self) -> ExternType[src]

Returns the type associated with this Extern.

Trait Implementations

impl Clone for Extern[src]

impl From<Func> for Extern[src]

impl From<Global> for Extern[src]

impl From<Memory> for Extern[src]

impl From<Table> for Extern[src]

Auto Trait Implementations

impl !RefUnwindSafe for Extern

impl !Send for Extern

impl !Sync for Extern

impl Unpin for Extern

impl !UnwindSafe for Extern

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.