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
sourceimpl<T: Copy, O> WrappedFFIValue<T, O>
impl<T: Copy, O> WrappedFFIValue<T, O>
Trait Implementations
sourceimpl<T, O> From<(T, O)> for WrappedFFIValue<T, O>
impl<T, O> From<(T, O)> for WrappedFFIValue<T, O>
sourceimpl<T, O> From<T> for WrappedFFIValue<T, O>
impl<T, O> From<T> for WrappedFFIValue<T, O>
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
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<T1> DecodeUntypedSlice for T1where
T1: From<UntypedValue>,
impl<T1> DecodeUntypedSlice for T1where
T1: From<UntypedValue>,
fn decode_untyped_slice(results: &[UntypedValue]) -> Result<T1, UntypedError>
fn decode_untyped_slice(results: &[UntypedValue]) -> Result<T1, UntypedError>
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