mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 23:57:56 +00:00
Weiliang Li
113 lines
3.6 KiB
Rust
113 lines
3.6 KiB
Rust
// Copyright 2017-2019 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Substrate is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
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//! Generic implementation of a block and associated items.
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#[cfg(feature = "std")]
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use std::fmt;
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#[cfg(feature = "std")]
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use serde::{Deserialize, Serialize};
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use rstd::prelude::*;
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use primitives::RuntimeDebug;
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use crate::codec::{Codec, Encode, Decode};
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use crate::traits::{self, Member, Block as BlockT, Header as HeaderT, MaybeSerialize};
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use crate::Justification;
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/// Something to identify a block.
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#[derive(PartialEq, Eq, Clone, RuntimeDebug)]
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#[cfg_attr(feature = "std", derive(Serialize))]
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#[cfg_attr(feature = "std", serde(rename_all = "camelCase"))]
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#[cfg_attr(feature = "std", serde(deny_unknown_fields))]
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pub enum BlockId<Block: BlockT> {
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/// Identify by block header hash.
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Hash(<<Block as BlockT>::Header as HeaderT>::Hash),
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/// Identify by block number.
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Number(<<Block as BlockT>::Header as HeaderT>::Number),
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}
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impl<Block: BlockT> BlockId<Block> {
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/// Create a block ID from a hash.
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pub fn hash(hash: Block::Hash) -> Self {
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BlockId::Hash(hash)
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}
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/// Create a block ID from a number.
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pub fn number(number: <Block::Header as HeaderT>::Number) -> Self {
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BlockId::Number(number)
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}
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}
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impl<Block: BlockT> Copy for BlockId<Block> {}
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#[cfg(feature = "std")]
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impl<Block: BlockT> fmt::Display for BlockId<Block> {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{:?}", self)
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}
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}
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/// Abstraction over a substrate block.
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#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug)]
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#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
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#[cfg_attr(feature = "std", serde(rename_all = "camelCase"))]
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#[cfg_attr(feature = "std", serde(deny_unknown_fields))]
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pub struct Block<Header, Extrinsic: MaybeSerialize> {
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/// The block header.
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pub header: Header,
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/// The accompanying extrinsics.
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pub extrinsics: Vec<Extrinsic>,
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}
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impl<Header, Extrinsic: MaybeSerialize> traits::Block for Block<Header, Extrinsic>
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where
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Header: HeaderT,
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Extrinsic: Member + Codec + traits::Extrinsic,
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{
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type Extrinsic = Extrinsic;
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type Header = Header;
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type Hash = <Self::Header as traits::Header>::Hash;
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fn header(&self) -> &Self::Header {
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&self.header
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}
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fn extrinsics(&self) -> &[Self::Extrinsic] {
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&self.extrinsics[..]
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}
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fn deconstruct(self) -> (Self::Header, Vec<Self::Extrinsic>) {
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(self.header, self.extrinsics)
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}
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fn new(header: Self::Header, extrinsics: Vec<Self::Extrinsic>) -> Self {
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Block { header, extrinsics }
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}
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fn encode_from(header: &Self::Header, extrinsics: &[Self::Extrinsic]) -> Vec<u8> {
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(header, extrinsics).encode()
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}
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}
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/// Abstraction over a substrate block and justification.
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#[derive(PartialEq, Eq, Clone, Encode, Decode, RuntimeDebug)]
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#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
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#[cfg_attr(feature = "std", serde(rename_all = "camelCase"))]
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#[cfg_attr(feature = "std", serde(deny_unknown_fields))]
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pub struct SignedBlock<Block> {
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/// Full block.
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pub block: Block,
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/// Block justification.
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pub justification: Option<Justification>,
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}
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