pub struct HeaderBackendDescendentBuilder<H, Block>(_, _);Expand description
Wrapper to get around unconstrained type errors when implementing
IsDescendentOfBuilder for header backends.
Trait Implementations§
source§impl<'a, H, Block> IsDescendentOfBuilder<<Block as Block>::Hash> for HeaderBackendDescendentBuilder<&'a H, Block>where
H: HeaderBackend<Block> + HeaderMetadata<Block, Error = ClientError>,
Block: BlockT,
impl<'a, H, Block> IsDescendentOfBuilder<<Block as Block>::Hash> for HeaderBackendDescendentBuilder<&'a H, Block>where
H: HeaderBackend<Block> + HeaderMetadata<Block, Error = ClientError>,
Block: BlockT,
§type IsDescendentOf = Box<dyn Fn(&<Block as Block>::Hash, &<Block as Block>::Hash) -> Result<bool, Error> + 'a, Global>
type IsDescendentOf = Box<dyn Fn(&<Block as Block>::Hash, &<Block as Block>::Hash) -> Result<bool, Error> + 'a, Global>
A function that can tell you if the second parameter is a descendent of
the first. Read more
source§fn build_is_descendent_of(
&self,
current: Option<(Block::Hash, Block::Hash)>
) -> Self::IsDescendentOf
fn build_is_descendent_of(
&self,
current: Option<(Block::Hash, Block::Hash)>
) -> Self::IsDescendentOf
Build an
is_descendent_of function. Read moreAuto Trait Implementations§
impl<H, Block> RefUnwindSafe for HeaderBackendDescendentBuilder<H, Block>where
Block: RefUnwindSafe,
H: RefUnwindSafe,
impl<H, Block> Send for HeaderBackendDescendentBuilder<H, Block>where
Block: Send,
H: Send,
impl<H, Block> Sync for HeaderBackendDescendentBuilder<H, Block>where
Block: Sync,
H: Sync,
impl<H, Block> Unpin for HeaderBackendDescendentBuilder<H, Block>where
Block: Unpin,
H: Unpin,
impl<H, Block> UnwindSafe for HeaderBackendDescendentBuilder<H, Block>where
Block: UnwindSafe,
H: UnwindSafe,
Blanket Implementations§
source§impl<T> CheckedConversion for T
impl<T> CheckedConversion for T
source§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
source§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 moresource§fn 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 moresource§fn 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 moresource§fn 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 moresource§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<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>,
source§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<T> SaturatedConversion for T
impl<T> SaturatedConversion for T
source§fn saturated_from<T>(t: T) -> Selfwhere
Self: UniqueSaturatedFrom<T>,
fn saturated_from<T>(t: T) -> Selfwhere
Self: UniqueSaturatedFrom<T>,
source§fn saturated_into<T>(self) -> Twhere
Self: UniqueSaturatedInto<T>,
fn saturated_into<T>(self) -> Twhere
Self: UniqueSaturatedInto<T>,
Consume self to return an equivalent value of
T. Read moresource§impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
source§fn unchecked_into(self) -> T
fn unchecked_into(self) -> T
The counterpart to
unchecked_from.source§impl<T, S> UniqueSaturatedInto<T> for Swhere
T: Bounded,
S: TryInto<T>,
impl<T, S> UniqueSaturatedInto<T> for Swhere
T: Bounded,
S: TryInto<T>,
source§fn unique_saturated_into(self) -> T
fn unique_saturated_into(self) -> T
Consume self to return an equivalent value of
T.