Struct sp_state_machine::ProofRecorder

source · [−]

pub struct ProofRecorder<Hash> { /* private fields */ }

Expand description

Global proof recorder, act as a layer over a hash db for recording queried data.

Implementations

source

impl<Hash: Hash + Eq> ProofRecorder<Hash>

source

pub fn record(&self, key: Hash, val: Option<DBValue>)

Record the given key => val combination.

source

pub fn get(&self, key: &Hash) -> Option<Option<DBValue>>

Returns the value at the given key.

source

pub fn estimate_encoded_size(&self) -> usize

Returns the estimated encoded size of the proof.

The estimation is maybe bigger (by in maximum 4 bytes), but never smaller than the actual encoded proof.

source

pub fn to_storage_proof(&self) -> StorageProof

Convert into a StorageProof.

source

pub fn reset(&self)

Reset the internal state.

Trait Implementations

source

impl<Hash: Clone> Clone for ProofRecorder<Hash>

source

fn clone(&self) -> ProofRecorder<Hash>

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

source

impl<Hash: Default> Default for ProofRecorder<Hash>

source

fn default() -> ProofRecorder<Hash>

Returns the “default value” for a type. Read more

Auto Trait Implementations

impl<Hash> !RefUnwindSafe for ProofRecorder<Hash>

impl<Hash> Send for ProofRecorder<Hash> where
Hash: Send + Sync,

impl<Hash> Sync for ProofRecorder<Hash> where
Hash: Send + Sync,

impl<Hash> Unpin for ProofRecorder<Hash>

impl<Hash> !UnwindSafe for ProofRecorder<Hash>

Blanket Implementations

source

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

source

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

source

impl<T> Downcast for T where
T: Any,

source

pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘ
Notable traits for Box<W, Global>
`impl<W> Write for Box<W, Global> where W: Write + ?Sized, impl<R> Read for Box<R, Global> where R: Read + ?Sized, impl<I, A> Iterator for Box<I, A> where I: Iterator + ?Sized, A: Allocator, type Item = ::Item;impl<F, A> Future for Box<F, A> where F: Future + Unpin + ?Sized, A: Allocator + 'static, type Output = <F as Future>::Output;`

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 more

source

pub 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 more

source

pub 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 more

source

pub 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 more

source

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

source

pub fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

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

source