Expand description
An external reference.
Variants
Global(Global)
An externally defined global variable.
Table(Table)
An externally defined table.
Memory(Memory)
An externally defined linear memory.
Func(Func)
An externally defined Wasm or host function.
Implementations
sourceimpl Extern
impl Extern
sourcepub fn into_global(self) -> Option<Global>
pub fn into_global(self) -> Option<Global>
Returns the underlying global variable if self
is a global variable.
Returns None
otherwise.
sourcepub fn into_table(self) -> Option<Table>
pub fn into_table(self) -> Option<Table>
Returns the underlying table if self
is a table.
Returns None
otherwise.
sourcepub fn into_memory(self) -> Option<Memory>
pub fn into_memory(self) -> Option<Memory>
Returns the underlying linear memory if self
is a linear memory.
Returns None
otherwise.
Trait Implementations
impl Copy for Extern
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
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read morefn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read morefn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read morefn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more