Enum sp_runtime_interface::wasm::WrappedFFIValue
source · [−]pub enum WrappedFFIValue<T, O = ()> {
Wrapped(T),
WrappedAndOwned(T, O),
}
Expand description
Represents a wrapped ffi value.
It is either the ffi value itself or the ffi value plus some other owned value. By providing
support for storing another owned value besides the actual ffi value certain performance
optimizations can be applied. For example using the pointer to a Vec<u8>
, while using the
pointer to a SCALE encoded Vec<u8>
that is stored in this wrapper for any other Vec<T>
.
Variants
Wrapped(T)
WrappedAndOwned(T, O)
Implementations
Trait Implementations
Auto Trait Implementations
impl<T, O> RefUnwindSafe for WrappedFFIValue<T, O> where
O: RefUnwindSafe,
T: RefUnwindSafe,
impl<T, O> Send for WrappedFFIValue<T, O> where
O: Send,
T: Send,
impl<T, O> Sync for WrappedFFIValue<T, O> where
O: Sync,
T: Sync,
impl<T, O> Unpin for WrappedFFIValue<T, O> where
O: Unpin,
T: Unpin,
impl<T, O> UnwindSafe for WrappedFFIValue<T, O> where
O: UnwindSafe,
T: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
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 more
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
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
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more