Struct sp_runtime::Digest

pub struct Digest<Hash> {
    pub logs: Vec<DigestItem<Hash>>,
}

Generic header digest.

Fields

logs: Vec<DigestItem<Hash>>

A list of logs in the digest.

Implementations

impl<Hash> Digest<Hash>

pub fn logs(&self) -> &[DigestItem<Hash>]

Get reference to all digest items.

pub fn push(&mut self, item: DigestItem<Hash>)

Push new digest item.

pub fn pop(&mut self) -> Option<DigestItem<Hash>>

Pop a digest item.

pub fn log<T: ?Sized, F: Fn(&DigestItem<Hash>) -> Option<&T>>(
    &self,
    predicate: F
) -> Option<&T>

Get reference to the first digest item that matches the passed predicate.

pub fn convert_first<T, F: Fn(&DigestItem<Hash>) -> Option<T>>(
    &self,
    predicate: F
) -> Option<T>

Get a conversion of the first digest item that successfully converts using the function.

Trait Implementations

impl<Hash: Clone> Clone for Digest<Hash>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Hash> Debug for Digest<Hash> where
    Hash: Debug, 

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

Formats the value using the given formatter.

impl<Hash> Decode for Digest<Hash> where
    Vec<DigestItem<Hash>>: Decode,
    Vec<DigestItem<Hash>>: Decode, 

fn decode<__CodecInputEdqy: Input>(
    __codec_input_edqy: &mut __CodecInputEdqy
) -> Result<Self, Error>

Attempt to deserialise the value from input.

pub fn skip<I>(input: &mut I) -> Result<(), Error> where
    I: Input, 

Attempt to skip the encoded value from input.

pub fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<Item> Default for Digest<Item>

fn default() -> Self

Returns the “default value” for a type.

impl<'de, Hash> Deserialize<'de> for Digest<Hash> where
    Hash: Codec, 

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl<Hash> Encode for Digest<Hash> where
    Vec<DigestItem<Hash>>: Encode,
    Vec<DigestItem<Hash>>: Encode, 

fn encode_to<__CodecOutputEdqy: Output + ?Sized>(
    &self,
    __codec_dest_edqy: &mut __CodecOutputEdqy
)

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F: FnOnce(&[u8]) -> R>(&self, f: F) -> R

Convert self to a slice and then invoke the given closure with it.

pub fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

pub fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<Hash> MallocSizeOf for Digest<Hash> where
    Hash: MallocSizeOf, 

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.

pub 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.

impl<Hash: PartialEq> PartialEq<Digest<Hash>> for Digest<Hash>

fn eq(&self, other: &Digest<Hash>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Digest<Hash>) -> bool

This method tests for !=.

impl<Hash> Serialize for Digest<Hash> where
    Hash: Codec, 

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl<Hash> EncodeLike<Digest<Hash>> for Digest<Hash> where
    Vec<DigestItem<Hash>>: Encode,
    Vec<DigestItem<Hash>>: Encode, 

impl<Hash: Eq> Eq for Digest<Hash>

impl<Hash> StructuralEq for Digest<Hash>

impl<Hash> StructuralPartialEq for Digest<Hash>