Enum polkadot_service::generic::DigestItem
source · pub enum DigestItem {
PreRuntime([u8; 4], Vec<u8>),
Consensus([u8; 4], Vec<u8>),
Seal([u8; 4], 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([u8; 4], 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([u8; 4], 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([u8; 4], 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_pages
value is changed.
Implementations§
source§impl 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<([u8; 4], &[u8])>
pub fn as_pre_runtime(&self) -> Option<([u8; 4], &[u8])>
Returns Some
if this entry is the PreRuntime
entry.
sourcepub fn as_consensus(&self) -> Option<([u8; 4], &[u8])>
pub fn as_consensus(&self) -> Option<([u8; 4], &[u8])>
Returns Some
if this entry is the Consensus
entry.
sourcepub fn as_seal(&self) -> Option<([u8; 4], &[u8])>
pub fn as_seal(&self) -> Option<([u8; 4], &[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>(&self, id: OpaqueDigestItemId<'_>) -> Option<T>where
T: Decode,
pub fn try_to<T>(&self, id: OpaqueDigestItemId<'_>) -> Option<T>where
T: Decode,
Returns the data decoded as T
, if the id
is matching.
sourcepub fn seal_try_to<T>(&self, id: &[u8; 4]) -> Option<T>where
T: Decode,
pub fn seal_try_to<T>(&self, id: &[u8; 4]) -> Option<T>where
T: Decode,
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>(&self, id: &[u8; 4]) -> Option<T>where
T: Decode,
pub fn consensus_try_to<T>(&self, id: &[u8; 4]) -> Option<T>where
T: Decode,
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>(&self, id: &[u8; 4]) -> Option<T>where
T: Decode,
pub fn pre_runtime_try_to<T>(&self, id: &[u8; 4]) -> Option<T>where
T: Decode,
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§
source§impl CheckEqual for DigestItem
impl CheckEqual for DigestItem
source§fn check_equal(&self, other: &DigestItem)
fn check_equal(&self, other: &DigestItem)
source§impl Clone for DigestItem
impl Clone for DigestItem
source§fn clone(&self) -> DigestItem
fn clone(&self) -> DigestItem
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl<Signature> CompatibleDigestItem<Signature> for DigestItemwhere
Signature: Codec,
impl<Signature> CompatibleDigestItem<Signature> for DigestItemwhere
Signature: Codec,
source§fn aura_seal(signature: Signature) -> DigestItem
fn aura_seal(signature: Signature) -> DigestItem
source§fn as_aura_seal(&self) -> Option<Signature>
fn as_aura_seal(&self) -> Option<Signature>
source§fn aura_pre_digest(slot: Slot) -> DigestItem
fn aura_pre_digest(slot: Slot) -> DigestItem
source§fn as_aura_pre_digest(&self) -> Option<Slot>
fn as_aura_pre_digest(&self) -> Option<Slot>
source§impl CompatibleDigestItem for DigestItem
impl CompatibleDigestItem for DigestItem
source§fn babe_pre_digest(digest: PreDigest) -> DigestItem
fn babe_pre_digest(digest: PreDigest) -> DigestItem
source§fn as_babe_pre_digest(&self) -> Option<PreDigest>
fn as_babe_pre_digest(&self) -> Option<PreDigest>
source§fn babe_seal(signature: Signature) -> DigestItem
fn babe_seal(signature: Signature) -> DigestItem
source§fn as_babe_seal(&self) -> Option<Signature>
fn as_babe_seal(&self) -> Option<Signature>
source§fn as_next_epoch_descriptor(&self) -> Option<NextEpochDescriptor>
fn as_next_epoch_descriptor(&self) -> Option<NextEpochDescriptor>
source§fn as_next_config_descriptor(&self) -> Option<NextConfigDescriptor>
fn as_next_config_descriptor(&self) -> Option<NextConfigDescriptor>
source§impl Debug for DigestItem
impl Debug for DigestItem
source§impl Decode for DigestItem
impl Decode for DigestItem
source§fn decode<I>(input: &mut I) -> Result<DigestItem, Error>where
I: Input,
fn decode<I>(input: &mut I) -> Result<DigestItem, Error>where
I: Input,
§fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
fn decode_into<I>(
input: &mut I,
dst: &mut MaybeUninit<Self>,
) -> Result<DecodeFinished, Error>where
I: Input,
§fn skip<I>(input: &mut I) -> Result<(), Error>where
I: Input,
fn skip<I>(input: &mut I) -> Result<(), Error>where
I: Input,
§fn encoded_fixed_size() -> Option<usize>
fn encoded_fixed_size() -> Option<usize>
source§impl<'a> Deserialize<'a> for DigestItem
impl<'a> Deserialize<'a> for DigestItem
source§fn deserialize<D>(de: D) -> Result<DigestItem, <D as Deserializer<'a>>::Error>where
D: Deserializer<'a>,
fn deserialize<D>(de: D) -> Result<DigestItem, <D as Deserializer<'a>>::Error>where
D: Deserializer<'a>,
source§impl Encode for DigestItem
impl Encode for DigestItem
§fn encode_to<T>(&self, dest: &mut T)where
T: Output + ?Sized,
fn encode_to<T>(&self, dest: &mut T)where
T: Output + ?Sized,
§fn using_encoded<R, F>(&self, f: F) -> R
fn using_encoded<R, F>(&self, f: F) -> R
§fn encoded_size(&self) -> usize
fn encoded_size(&self) -> usize
source§impl From<ConsensusLog> for DigestItem
impl From<ConsensusLog> for DigestItem
source§fn from(c: ConsensusLog) -> DigestItem
fn from(c: ConsensusLog) -> DigestItem
source§impl PartialEq for DigestItem
impl PartialEq for DigestItem
source§fn eq(&self, other: &DigestItem) -> bool
fn eq(&self, other: &DigestItem) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl Serialize for DigestItem
impl Serialize for DigestItem
source§fn serialize<S>(
&self,
seq: S,
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where
S: Serializer,
fn serialize<S>(
&self,
seq: S,
) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>where
S: Serializer,
source§impl TypeInfo for DigestItem
impl TypeInfo for DigestItem
impl EncodeLike for DigestItem
impl Eq for DigestItem
impl StorageAppend<DigestItem> for Digest
We abuse the fact that SCALE does not put any marker into the encoding, i.e. we only encode the
internal vec and we can append to this vec. We have a test that ensures that if the Digest
format ever changes, we need to remove this here.
impl StructuralPartialEq for DigestItem
Auto Trait Implementations§
impl Freeze for DigestItem
impl RefUnwindSafe for DigestItem
impl Send for DigestItem
impl Sync for DigestItem
impl Unpin for DigestItem
impl UnwindSafe for DigestItem
Blanket Implementations§
§impl<T> AnySync for T
impl<T> AnySync for T
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> CheckedConversion for T
impl<T> CheckedConversion for T
source§impl<T> CheckedConversion for T
impl<T> CheckedConversion for T
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
clone_to_uninit
)§impl<T> Conv for T
impl<T> Conv for T
§impl<T> DecodeAll for Twhere
T: Decode,
impl<T> DecodeAll for Twhere
T: Decode,
§fn decode_all(input: &mut &[u8]) -> Result<T, Error>
fn decode_all(input: &mut &[u8]) -> Result<T, Error>
Self
and consume all of the given input data. Read more§impl<T> DecodeLimit for Twhere
T: Decode,
impl<T> DecodeLimit for Twhere
T: Decode,
source§impl<T> EncodeInto for Twhere
T: Encode,
impl<T> EncodeInto for Twhere
T: Encode,
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.§impl<T> FmtForward for T
impl<T> FmtForward for T
§fn fmt_binary(self) -> FmtBinary<Self>where
Self: Binary,
fn fmt_binary(self) -> FmtBinary<Self>where
Self: Binary,
self
to use its Binary
implementation when Debug
-formatted.§fn fmt_display(self) -> FmtDisplay<Self>where
Self: Display,
fn fmt_display(self) -> FmtDisplay<Self>where
Self: Display,
self
to use its Display
implementation when
Debug
-formatted.§fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
fn fmt_lower_exp(self) -> FmtLowerExp<Self>where
Self: LowerExp,
self
to use its LowerExp
implementation when
Debug
-formatted.§fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
fn fmt_lower_hex(self) -> FmtLowerHex<Self>where
Self: LowerHex,
self
to use its LowerHex
implementation when
Debug
-formatted.§fn fmt_octal(self) -> FmtOctal<Self>where
Self: Octal,
fn fmt_octal(self) -> FmtOctal<Self>where
Self: Octal,
self
to use its Octal
implementation when Debug
-formatted.§fn fmt_pointer(self) -> FmtPointer<Self>where
Self: Pointer,
fn fmt_pointer(self) -> FmtPointer<Self>where
Self: Pointer,
self
to use its Pointer
implementation when
Debug
-formatted.§fn fmt_upper_exp(self) -> FmtUpperExp<Self>where
Self: UpperExp,
fn fmt_upper_exp(self) -> FmtUpperExp<Self>where
Self: UpperExp,
self
to use its UpperExp
implementation when
Debug
-formatted.§fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self>where
Self: UpperHex,
self
to use its UpperHex
implementation when
Debug
-formatted.§fn fmt_list(self) -> FmtList<Self>where
&'a Self: for<'a> IntoIterator,
fn fmt_list(self) -> FmtList<Self>where
&'a Self: for<'a> IntoIterator,
§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
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 moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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§impl<Src, Dest> IntoTuple<Dest> for Srcwhere
Dest: FromTuple<Src>,
impl<Src, Dest> IntoTuple<Dest> for Srcwhere
Dest: FromTuple<Src>,
fn into_tuple(self) -> Dest
source§impl<T, Outer> IsWrappedBy<Outer> for T
impl<T, Outer> IsWrappedBy<Outer> for T
source§impl<T, Outer> IsWrappedBy<Outer> for T
impl<T, Outer> IsWrappedBy<Outer> for T
§impl<T> KeyedVec for Twhere
T: Codec,
impl<T> KeyedVec for Twhere
T: Codec,
§impl<T> Pipe for Twhere
T: ?Sized,
impl<T> Pipe for Twhere
T: ?Sized,
§fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere
Self: Sized,
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> Rwhere
Self: Sized,
§fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere
R: 'a,
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> Rwhere
R: 'a,
self
and passes that borrow into the pipe function. Read more§fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> Rwhere
R: 'a,
fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> Rwhere
R: 'a,
self
and passes that borrow into the pipe function. Read more§fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R
§fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R,
) -> R
fn pipe_borrow_mut<'a, B, R>( &'a mut self, func: impl FnOnce(&'a mut B) -> R, ) -> R
§fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R
self
, then passes self.as_ref()
into the pipe function.§fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R
self
, then passes self.as_mut()
into the pipe
function.§fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R
self
, then passes self.deref()
into the pipe function.§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<T> SaturatedConversion for T
impl<T> SaturatedConversion for T
source§fn saturated_from<T>(t: T) -> Selfwhere
Self: UniqueSaturatedFrom<T>,
fn saturated_from<T>(t: T) -> Selfwhere
Self: UniqueSaturatedFrom<T>,
source§fn saturated_into<T>(self) -> Twhere
Self: UniqueSaturatedInto<T>,
fn saturated_into<T>(self) -> Twhere
Self: UniqueSaturatedInto<T>,
T
. Read moresource§impl<T> SaturatedConversion for T
impl<T> SaturatedConversion for T
source§fn saturated_from<T>(t: T) -> Selfwhere
Self: UniqueSaturatedFrom<T>,
fn saturated_from<T>(t: T) -> Selfwhere
Self: UniqueSaturatedFrom<T>,
source§fn saturated_into<T>(self) -> Twhere
Self: UniqueSaturatedInto<T>,
fn saturated_into<T>(self) -> Twhere
Self: UniqueSaturatedInto<T>,
T
. Read more§impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
§fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
self
from the equivalent element of its
superset. Read more§fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
self
is actually part of its subset T
(and can be converted to it).§fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
self.to_subset
but without any property checks. Always succeeds.§fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
self
to the equivalent element of its superset.§impl<T> Tap for T
impl<T> Tap for T
§fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self
Borrow<B>
of a value. Read more§fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
BorrowMut<B>
of a value. Read more§fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self
AsRef<R>
view of a value. Read more§fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self
AsMut<R>
view of a value. Read more§fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self
Deref::Target
of a value. Read more§fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
Deref::Target
of a value. Read more§fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
.tap()
only in debug builds, and is erased in release builds.§fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
.tap_mut()
only in debug builds, and is erased in release
builds.§fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
.tap_borrow()
only in debug builds, and is erased in release
builds.§fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
.tap_borrow_mut()
only in debug builds, and is erased in release
builds.§fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
.tap_ref()
only in debug builds, and is erased in release
builds.§fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
.tap_ref_mut()
only in debug builds, and is erased in release
builds.§fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
.tap_deref()
only in debug builds, and is erased in release
builds.§impl<T> TryConv for T
impl<T> TryConv for T
source§impl<T, U> TryIntoKey<U> for Twhere
U: TryFromKey<T>,
impl<T, U> TryIntoKey<U> for Twhere
U: TryFromKey<T>,
type Error = <U as TryFromKey<T>>::Error
fn try_into_key(self) -> Result<U, <U as TryFromKey<T>>::Error>
source§impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
source§fn unchecked_into(self) -> T
fn unchecked_into(self) -> T
unchecked_from
.source§impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
source§fn unchecked_into(self) -> T
fn unchecked_into(self) -> T
unchecked_from
.source§impl<T, S> UniqueSaturatedInto<T> for S
impl<T, S> UniqueSaturatedInto<T> for S
source§fn unique_saturated_into(self) -> T
fn unique_saturated_into(self) -> T
T
.source§impl<T, S> UniqueSaturatedInto<T> for S
impl<T, S> UniqueSaturatedInto<T> for S
source§fn unique_saturated_into(self) -> T
fn unique_saturated_into(self) -> T
T
.