Struct sp_core::offchain::OffchainDbExt
source · pub struct OffchainDbExt(pub Box<dyn DbExternalities>);
Expand description
The offchain database extension that will be registered at the Substrate externalities.
Tuple Fields
0: Box<dyn DbExternalities>
Implementations
sourceimpl OffchainDbExt
impl OffchainDbExt
sourcepub fn new<O: DbExternalities + 'static>(offchain: O) -> Self
pub fn new<O: DbExternalities + 'static>(offchain: O) -> Self
Create a new instance of OffchainDbExt
.
Trait Implementations
sourceimpl Deref for OffchainDbExt
impl Deref for OffchainDbExt
sourceimpl DerefMut for OffchainDbExt
impl DerefMut for OffchainDbExt
sourceimpl Extension for OffchainDbExt
impl Extension for OffchainDbExt
sourcefn as_mut_any(&mut self) -> &mut dyn Any
fn as_mut_any(&mut self) -> &mut dyn Any
Return the extension as
&mut dyn Any
. Read moresourceimpl From<Box<dyn DbExternalities + 'static, Global>> for OffchainDbExt
impl From<Box<dyn DbExternalities + 'static, Global>> for OffchainDbExt
sourcefn from(inner: Box<dyn DbExternalities>) -> Self
fn from(inner: Box<dyn DbExternalities>) -> Self
Converts to this type from the input type.
Auto Trait Implementations
impl !RefUnwindSafe for OffchainDbExt
impl Send for OffchainDbExt
impl !Sync for OffchainDbExt
impl Unpin for OffchainDbExt
impl !UnwindSafe for OffchainDbExt
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 moresourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T, Outer> IsWrappedBy<Outer> for Twhere
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
impl<T, Outer> IsWrappedBy<Outer> for Twhere
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
sourceimpl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
sourcefn unchecked_into(self) -> T
fn unchecked_into(self) -> T
The counterpart to
unchecked_from
.