Enum wasmtime::Extern

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

Expand description

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.

`Instance(Instance)`

A WebAssembly instance.

`Module(Module)`

A WebAssembly module.

Implementations

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impl Extern

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

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

Returns None if this is not a function.

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

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

Returns None if this is not a global.

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

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

Returns None if this is not a table.

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

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

Returns None if this is not a memory.

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pub fn into_instance(self) -> Option<Instance>

Returns the underlying Instance, if this external is a instance.

Returns None if this is not a instance.

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pub fn into_module(self) -> Option<Module>

Returns the underlying Module, if this external is a module.

Returns None if this is not a module.

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pub fn ty(&self) -> ExternType

Returns the type associated with this Extern.

Trait Implementations

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impl Clone for Extern

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fn clone(&self) -> Extern

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl From<Func> for Extern

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fn from(r: Func) -> Self

Performs the conversion.

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impl From<Global> for Extern

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fn from(r: Global) -> Self

Performs the conversion.

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impl From<Instance> for Extern

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fn from(r: Instance) -> Self

Performs the conversion.

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impl From<Memory> for Extern

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fn from(r: Memory) -> Self

Performs the conversion.

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impl From<Module> for Extern

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fn from(r: Module) -> Self

Performs the conversion.

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impl From<Table> for Extern

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fn from(r: Table) -> Self

Performs the conversion.

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

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impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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pub unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

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pub unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

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pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

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pub unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

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

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

Enum wasmtime::Extern

Variants

Func(Func)

Global(Global)

Table(Table)

Memory(Memory)

Instance(Instance)

Module(Module)

Implementations

impl Extern

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

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

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

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

pub fn into_instance(self) -> Option<Instance>

pub fn into_module(self) -> Option<Module>

pub fn ty(&self) -> ExternType

Trait Implementations

impl Clone for Extern

fn clone(&self) -> Extern

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

impl From<Func> for Extern

fn from(r: Func) -> Self

impl From<Global> for Extern

fn from(r: Global) -> Self

impl From<Instance> for Extern

fn from(r: Instance) -> Self

impl From<Memory> for Extern

fn from(r: Memory) -> Self

impl From<Module> for Extern

fn from(r: Module) -> Self

impl From<Table> for Extern

fn from(r: Table) -> Self

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,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

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

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

impl<T> Same<T> for T

type Output = T

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

`Func(Func)`

`Global(Global)`

`Table(Table)`

`Memory(Memory)`

`Instance(Instance)`

`Module(Module)`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,