Struct ProvingBackendRecorder

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pub struct ProvingBackendRecorder<'a, S: 'a + TrieBackendStorage<H>, H: 'a + Hasher> { /* private fields */ }

Expand description

Patricia trie-based backend specialized in get value proofs.

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impl<'a, S, H> ProvingBackendRecorder<'a, S, H>
where S: TrieBackendStorage<H>, H: Hasher, H::Out: Codec,

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pub fn storage(&mut self, key: &[u8]) -> Result<Option<Vec<u8>>, String>

Produce proof for a key query.

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pub fn child_storage( &mut self, child_info: &ChildInfo, key: &[u8], ) -> Result<Option<Vec<u8>>, String>

Produce proof for a child key query.

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pub fn record_all_keys(&mut self)

Produce proof for the whole backend.

Auto Trait Implementations§

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impl<'a, S, H> Freeze for ProvingBackendRecorder<'a, S, H>

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impl<'a, S, H> RefUnwindSafe for ProvingBackendRecorder<'a, S, H>
where S: RefUnwindSafe, <H as Hasher>::Out: RefUnwindSafe,

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impl<'a, S, H> !UnwindSafe for ProvingBackendRecorder<'a, S, H>

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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> Downcast for T
where T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

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.

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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.

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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.

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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.

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impl<T> DowncastSync for T
where T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.

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