Struct AncestryChain

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pub struct AncestryChain<Header: HeaderT> { /* private fields */ }

Expand description

Votes ancestries with useful methods.

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impl<Header: HeaderT> AncestryChain<Header>

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pub fn new( justification: &GrandpaJustification<Header>, ) -> (AncestryChain<Header>, Vec<usize>)

Creates a new instance of AncestryChain starting from a GrandpaJustification.

Returns the AncestryChain and a Vec containing the votes_ancestries entries that were ignored when creating it, because they are duplicates.

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pub fn parent_hash_of(&self, hash: &Header::Hash) -> Option<&Header::Hash>

Returns the hash of a block’s parent if the block is present in the ancestry.

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pub fn ancestry( &self, precommit_target_hash: &Header::Hash, precommit_target_number: &Header::Number, ) -> Option<Vec<Header::Hash>>

Returns a route if the precommit target block is a descendant of the base block.

Trait Implementations§

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impl<Header> Debug for AncestryChain<Header>
where Header: Debug + HeaderT,

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fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<Header> Freeze for AncestryChain<Header>
where <Header as Header>::Number: Freeze, <Header as Header>::Hash: Freeze,

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impl<Header> RefUnwindSafe for AncestryChain<Header>
where <Header as Header>::Number: RefUnwindSafe, <Header as Header>::Hash: RefUnwindSafe,

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impl<Header> Send for AncestryChain<Header>

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impl<Header> Sync for AncestryChain<Header>

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impl<Header> Unpin for AncestryChain<Header>
where <Header as Header>::Number: Unpin, <Header as Header>::Hash: Unpin,

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impl<Header> UnwindSafe for AncestryChain<Header>
where <Header as Header>::Number: UnwindSafe, <Header as Header>::Hash: UnwindSafe + RefUnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CheckedConversion for T

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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

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fn checked_into<T>(self) -> Option<T>
where Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more

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impl<T, U> DefensiveTruncateInto<U> for T
where U: DefensiveTruncateFrom<T>,

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fn defensive_truncate_into(self) -> U

Defensively truncate a value and convert it into its bounded form.

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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