pub struct HeaderBackendDescendentBuilder<H, Block>(_, _);Expand description
Wrapper to get around unconstrained type errors when implementing
IsDescendentOfBuilder for header backends.
Trait Implementations
sourceimpl<'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 Error = ClientError
type Error = ClientError
The error returned by the function.
type IsDescendentOf = Box<dyn Fn(&Block::Hash, &Block::Hash) -> Result<bool, ClientError> + 'a>
type IsDescendentOf = Box<dyn Fn(&Block::Hash, &Block::Hash) -> Result<bool, ClientError> + 'a>
A function that can tell you if the second parameter is a descendent of the first. Read more
sourcefn 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 more
Auto 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
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> CheckedConversion for T
impl<T> CheckedConversion for T
sourcefn checked_from<T>(t: T) -> Option<Self> where
Self: TryFrom<T>,
fn checked_from<T>(t: T) -> Option<Self> where
Self: TryFrom<T>,
Convert from a value of T into an equivalent instance of Option<Self>. Read more
sourcefn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,
fn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,
Consume self to return Some equivalent value of Option<T>. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Instruments this type with the provided Span, returning an
Instrumented wrapper. Read more
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Instruments this type with the provided Span, returning an
Instrumented wrapper. Read more
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
sourceimpl<T> Pointable for T
impl<T> Pointable for T
sourceimpl<T> SaturatedConversion for T
impl<T> SaturatedConversion for T
sourcefn saturated_from<T>(t: T) -> Self where
Self: UniqueSaturatedFrom<T>,
fn saturated_from<T>(t: T) -> Self where
Self: UniqueSaturatedFrom<T>,
Convert from a value of T into an equivalent instance of Self. Read more
sourcefn saturated_into<T>(self) -> T where
Self: UniqueSaturatedInto<T>,
fn saturated_into<T>(self) -> T where
Self: UniqueSaturatedInto<T>,
Consume self to return an equivalent value of T. Read more
sourceimpl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,
sourcepub fn unchecked_into(self) -> T
pub fn unchecked_into(self) -> T
The counterpart to unchecked_from.
sourceimpl<T, S> UniqueSaturatedInto<T> for S where
T: Bounded,
S: TryInto<T>,
impl<T, S> UniqueSaturatedInto<T> for S where
T: Bounded,
S: TryInto<T>,
sourcepub fn unique_saturated_into(self) -> T
pub fn unique_saturated_into(self) -> T
Consume self to return an equivalent value of T.
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
Attaches the provided Subscriber to this type, returning a
WithDispatch wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber to this type, returning a
WithDispatch wrapper. Read more