Enum BlockId

pub enum BlockId<Block: BlockT> {
    Hash(Block::Hash),
    Number(NumberFor<Block>),
}

Something to identify a block.

Variants

Hash(Block::Hash)

Identify by block header hash.

Number(NumberFor<Block>)

Identify by block number.

Implementations

impl<Block: BlockT> BlockId<Block>

pub const fn hash(hash: Block::Hash) -> Self

Create a block ID from a hash.

pub const fn number(number: NumberFor<Block>) -> Self

Create a block ID from a number.

pub fn is_pre_genesis(&self) -> bool

Check if this block ID refers to the pre-genesis state.

pub fn pre_genesis() -> Self

Create a block ID for a pre-genesis state.

Trait Implementations

impl<Block: Clone + BlockT> Clone for BlockId<Block>

where Block::Hash: Clone,

fn clone(&self) -> BlockId<Block>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Block> Debug for BlockId<Block>

where Block: Debug + BlockT,

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

Formats the value using the given formatter.

impl<Block: BlockT> Decode for BlockId<Block>

where Block::Hash: Decode, NumberFor<Block>: Decode,

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

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

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

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl<Block: BlockT> Display for BlockId<Block>

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

Formats the value using the given formatter.

impl<Block: BlockT> Encode for BlockId<Block>

where Block::Hash: Encode, NumberFor<Block>: Encode,

fn size_hint(&self) -> usize

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

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>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

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

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl<Block: PartialEq + BlockT> PartialEq for BlockId<Block>

where Block::Hash: PartialEq,

fn eq(&self, other: &BlockId<Block>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<Block: BlockT> Copy for BlockId<Block>

impl<Block: BlockT> EncodeLike for BlockId<Block>

where Block::Hash: Encode, NumberFor<Block>: Encode,

impl<Block: Eq + BlockT> Eq for BlockId<Block>

where Block::Hash: Eq,

impl<Block: BlockT> StructuralPartialEq for BlockId<Block>