Enum sp_runtime::DigestItem
source · [−]pub enum DigestItem {
PreRuntime(ConsensusEngineId, Vec<u8>),
Consensus(ConsensusEngineId, Vec<u8>),
Seal(ConsensusEngineId, Vec<u8>),
Other(Vec<u8>),
RuntimeEnvironmentUpdated,
}Expand description
Digest item that is able to encode/decode ‘system’ digest items and provide opaque access to other items.
Variants
PreRuntime(ConsensusEngineId, Vec<u8>)
A pre-runtime digest.
These are messages from the consensus engine to the runtime, although the consensus engine can (and should) read them itself to avoid code and state duplication. It is erroneous for a runtime to produce these, but this is not (yet) checked.
NOTE: the runtime is not allowed to panic or fail in an on_initialize
call if an expected PreRuntime digest is not present. It is the
responsibility of a external block verifier to check this. Runtime API calls
will initialize the block without pre-runtime digests, so initialization
cannot fail when they are missing.
Consensus(ConsensusEngineId, Vec<u8>)
A message from the runtime to the consensus engine. This should never be generated by the native code of any consensus engine, but this is not checked (yet).
Seal(ConsensusEngineId, Vec<u8>)
Put a Seal on it. This is only used by native code, and is never seen by runtimes.
Other(Vec<u8>)
Some other thing. Unsupported and experimental.
RuntimeEnvironmentUpdated
An indication for the light clients that the runtime execution environment is updated.
Currently this is triggered when:
- Runtime code blob is changed or
heap_pagesvalue is changed.
Implementations
sourceimpl DigestItem
impl DigestItem
sourcepub fn dref(&self) -> DigestItemRef<'_>
pub fn dref(&self) -> DigestItemRef<'_>
Returns a ‘referencing view’ for this digest item.
sourcepub fn as_pre_runtime(&self) -> Option<(ConsensusEngineId, &[u8])>
pub fn as_pre_runtime(&self) -> Option<(ConsensusEngineId, &[u8])>
Returns Some if this entry is the PreRuntime entry.
sourcepub fn as_consensus(&self) -> Option<(ConsensusEngineId, &[u8])>
pub fn as_consensus(&self) -> Option<(ConsensusEngineId, &[u8])>
Returns Some if this entry is the Consensus entry.
sourcepub fn as_seal(&self) -> Option<(ConsensusEngineId, &[u8])>
pub fn as_seal(&self) -> Option<(ConsensusEngineId, &[u8])>
Returns Some if this entry is the Seal entry.
sourcepub fn try_as_raw(&self, id: OpaqueDigestItemId<'_>) -> Option<&[u8]>
pub fn try_as_raw(&self, id: OpaqueDigestItemId<'_>) -> Option<&[u8]>
Returns the opaque data contained in the item if Some if this entry has the id given.
sourcepub fn try_to<T: Decode>(&self, id: OpaqueDigestItemId<'_>) -> Option<T>
pub fn try_to<T: Decode>(&self, id: OpaqueDigestItemId<'_>) -> Option<T>
Returns the data contained in the item if Some if this entry has the id given, decoded
to the type provided T.
sourcepub fn seal_try_to<T: Decode>(&self, id: &ConsensusEngineId) -> Option<T>
pub fn seal_try_to<T: Decode>(&self, id: &ConsensusEngineId) -> Option<T>
Try to match this to a Self::Seal, check id matches and decode it.
Returns None if this isn’t a seal item, the id doesn’t match or when the decoding fails.
sourcepub fn consensus_try_to<T: Decode>(&self, id: &ConsensusEngineId) -> Option<T>
pub fn consensus_try_to<T: Decode>(&self, id: &ConsensusEngineId) -> Option<T>
Try to match this to a Self::Consensus, check id matches and decode it.
Returns None if this isn’t a consensus item, the id doesn’t match or
when the decoding fails.
sourcepub fn pre_runtime_try_to<T: Decode>(&self, id: &ConsensusEngineId) -> Option<T>
pub fn pre_runtime_try_to<T: Decode>(&self, id: &ConsensusEngineId) -> Option<T>
Try to match this to a Self::PreRuntime, check id matches and decode it.
Returns None if this isn’t a pre-runtime item, the id doesn’t match or
when the decoding fails.
Trait Implementations
sourceimpl CheckEqual for DigestItem
impl CheckEqual for DigestItem
sourcefn check_equal(&self, other: &Self)
fn check_equal(&self, other: &Self)
Perform the equality check.
sourceimpl Clone for DigestItem
impl Clone for DigestItem
sourcefn clone(&self) -> DigestItem
fn clone(&self) -> DigestItem
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source. Read more
sourceimpl Debug for DigestItem
impl Debug for DigestItem
sourceimpl Decode for DigestItem
impl Decode for DigestItem
sourcefn decode<I: Input>(input: &mut I) -> Result<Self, Error>
fn decode<I: Input>(input: &mut I) -> Result<Self, Error>
Attempt to deserialise the value from input.
sourcefn skip<I>(input: &mut I) -> Result<(), Error> where
I: Input,
fn skip<I>(input: &mut I) -> Result<(), Error> where
I: Input,
Attempt to skip the encoded value from input. Read more
sourcefn encoded_fixed_size() -> Option<usize>
fn encoded_fixed_size() -> Option<usize>
Returns the fixed encoded size of the type. Read more
sourceimpl<'a> Deserialize<'a> for DigestItem
impl<'a> Deserialize<'a> for DigestItem
sourcefn deserialize<D>(de: D) -> Result<Self, D::Error> where
D: Deserializer<'a>,
fn deserialize<D>(de: D) -> Result<Self, D::Error> where
D: Deserializer<'a>,
Deserialize this value from the given Serde deserializer. Read more
sourceimpl Encode for DigestItem
impl Encode for DigestItem
sourcefn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where
A: Allocator,
fn encode(&self) -> Vec<u8>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where
A: Allocator,
A: Allocator,
Convert self to an owned vector.
sourcefn size_hint(&self) -> usize
fn size_hint(&self) -> usize
If possible give a hint of expected size of the encoding. Read more
sourcefn encode_to<T>(&self, dest: &mut T) where
T: Output + ?Sized,
fn encode_to<T>(&self, dest: &mut T) where
T: Output + ?Sized,
Convert self to a slice and append it to the destination.
sourcefn using_encoded<R, F>(&self, f: F) -> R where
F: FnOnce(&[u8]) -> R,
fn using_encoded<R, F>(&self, f: F) -> R where
F: FnOnce(&[u8]) -> R,
Convert self to a slice and then invoke the given closure with it.
sourcefn encoded_size(&self) -> usize
fn encoded_size(&self) -> usize
Calculates the encoded size. Read more
sourceimpl MallocSizeOf for DigestItem
impl MallocSizeOf for DigestItem
sourcefn size_of(&self, ops: &mut MallocSizeOfOps) -> usize
fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize
Measure the heap usage of all descendant heap-allocated structures, but
not the space taken up by the value itself.
If T::size_of is a constant, consider implementing constant_size as well. Read more
sourcefn constant_size() -> Option<usize>
fn constant_size() -> Option<usize>
Used to optimize MallocSizeOf implementation for collections
like Vec and HashMap to avoid iterating over them unnecessarily.
The Self: Sized bound is for object safety. Read more
sourceimpl PartialEq<DigestItem> for DigestItem
impl PartialEq<DigestItem> for DigestItem
sourcefn eq(&self, other: &DigestItem) -> bool
fn eq(&self, other: &DigestItem) -> bool
This method tests for self and other values to be equal, and is used
by ==. Read more
sourcefn ne(&self, other: &DigestItem) -> bool
fn ne(&self, other: &DigestItem) -> bool
This method tests for !=.
sourceimpl Serialize for DigestItem
impl Serialize for DigestItem
sourceimpl TypeInfo for DigestItem
impl TypeInfo for DigestItem
impl EncodeLike<DigestItem> for DigestItem
impl Eq for DigestItem
impl StructuralEq for DigestItem
impl StructuralPartialEq for DigestItem
Auto Trait Implementations
impl RefUnwindSafe for DigestItem
impl Send for DigestItem
impl Sync for DigestItem
impl Unpin for DigestItem
impl UnwindSafe for DigestItem
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> DecodeLimit for T where
T: Decode,
impl<T> DecodeLimit for T where
T: Decode,
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<R, Global>impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;impl<F, A> Future for Box<F, A> where
F: Future + Unpin + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;
pub fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<R, Global>impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;impl<F, A> Future for Box<F, A> where
F: Future + Unpin + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;
R: Read + ?Sized, impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::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
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
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
pub fn as_any(&self) -> &(dyn Any + 'static)
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
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
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
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
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> MallocSizeOfExt for T where
T: MallocSizeOf,
impl<T> MallocSizeOfExt for T where
T: MallocSizeOf,
sourcefn malloc_size_of(&self) -> usize
fn malloc_size_of(&self) -> usize
Method to launch a heapsize measurement with a fresh state. Read more
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<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcepub fn to_owned(&self) -> T
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
sourcepub fn clone_into(&self, target: &mut T)
pub fn clone_into(&self, target: &mut T)
toowned_clone_into)Uses borrowed data to replace owned data, usually by cloning. 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.
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
pub fn vzip(self) -> V
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