Enum BlockId 

pub enum BlockId<Block>
where
    Block: Block,
{
    Hash(<Block as Block>::Hash),
    Number(<<Block as Block>::Header as Header>::Number),
}

Something to identify a block.

Variants

Hash(<Block as Block>::Hash)

Identify by block header hash.

Number(<<Block as Block>::Header as Header>::Number)

Identify by block number.

Implementations

impl<Block> BlockId<Block>

where Block: Block,

pub const fn hash(hash: <Block as Block>::Hash) -> BlockId<Block>

Create a block ID from a hash.

pub const fn number( number: <<Block as Block>::Header as Header>::Number, ) -> BlockId<Block>

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() -> BlockId<Block>

Create a block ID for a pre-genesis state.

Trait Implementations

impl<Block> Clone for BlockId<Block>

where Block: Clone + Block, <Block as Block>::Hash: Clone,

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Block> Debug for BlockId<Block>

where Block: Debug + Block, <Block as Block>::Hash: Debug,

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

Formats the value using the given formatter.

impl<Block> Decode for BlockId<Block>

where Block: Block, <Block as Block>::Hash: Decode, <<Block as Block>::Header as Header>::Number: Decode,

fn decode<__CodecInputEdqy>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<BlockId<Block>, Error>

where __CodecInputEdqy: Input,

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> Display for BlockId<Block>

where Block: Block,

Available on crate feature std only.

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

Formats the value using the given formatter.

impl<Block> Encode for BlockId<Block>

where Block: Block, <Block as Block>::Hash: Encode, <<Block as Block>::Header as Header>::Number: Encode,

fn size_hint(&self) -> usize

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

fn encode_to<__CodecOutputEdqy>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

where __CodecOutputEdqy: Output + ?Sized,

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 for BlockId<Block>

where Block: PartialEq + Block, <Block as 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> Copy for BlockId<Block>

where Block: Block,

impl<Block> EncodeLike for BlockId<Block>

where Block: Block, <Block as Block>::Hash: Encode, <<Block as Block>::Header as Header>::Number: Encode,

impl<Block> Eq for BlockId<Block>

where Block: Eq + Block, <Block as Block>::Hash: Eq,

impl<Block> StructuralPartialEq for BlockId<Block>

where Block: Block,