Struct sp_runtime::offchain::OffchainDbExt [−][src]
pub struct OffchainDbExt(pub Box<dyn DbExternalities + 'static, Global>);
Expand description
The offchain database extension that will be registered at the Substrate externalities.
Implementations
Create a new instance of OffchainDbExt.
Methods from Deref<Target = Box<dyn DbExternalities + 'static, Global>>
Trait Implementations
type Target = Box<dyn DbExternalities + 'static, Global>
type Target = Box<dyn DbExternalities + 'static, Global>The resulting type after dereferencing.
Dereferences the value.
Mutably dereferences the value.
Return the extension as &mut dyn Any. Read more
Performs the conversion.
Auto Trait Implementations
impl !RefUnwindSafe for OffchainDbExtimpl Send for OffchainDbExtimpl !Sync for OffchainDbExtimpl Unpin for OffchainDbExtimpl !UnwindSafe for OffchainDbExtBlanket Implementations
Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any, pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<R, Global>
impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<F, A> Future for Box<F, A> where
F: Future + Unpin + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;
pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<R, Global>
impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<F, A> Future for Box<F, A> where
F: Future + Unpin + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;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
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub 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 more
Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot
generate &Any’s vtable from &Trait’s. Read more
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
pub 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
Instruments this type with the provided Span, returning an
Instrumented wrapper. Read more
type Output = T
type Output = TShould always be Self
The counterpart to unchecked_from.
Consume self to return an equivalent value of T.
pub fn vzip(self) -> V