openethereum/crates/ethcore/types/src/ids.rs

62 lines
1.8 KiB
Rust

// Copyright 2015-2020 Parity Technologies (UK) Ltd.
// This file is part of OpenEthereum.
// OpenEthereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// OpenEthereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with OpenEthereum. If not, see <http://www.gnu.org/licenses/>.
//! Unique identifiers.
use crate::BlockNumber;
use ethereum_types::H256;
/// Uniquely identifies block.
#[derive(Debug, PartialEq, Copy, Clone, Hash, Eq)]
pub enum BlockId {
/// Block's sha3.
/// Querying by hash is always faster.
Hash(H256),
/// Block number within canon blockchain.
Number(BlockNumber),
/// Earliest block (genesis).
Earliest,
/// Latest mined block.
Latest,
}
/// Uniquely identifies transaction.
#[derive(Debug, PartialEq, Clone, Hash, Eq)]
pub enum TransactionId {
/// Transaction's sha3.
Hash(H256),
/// Block id and transaction index within this block.
/// Querying by block position is always faster.
Location(BlockId, usize),
}
/// Uniquely identifies Trace.
pub struct TraceId {
/// Transaction
pub transaction: TransactionId,
/// Trace address within transaction.
pub address: Vec<usize>,
}
/// Uniquely identifies Uncle.
#[derive(Debug, PartialEq, Eq, Copy, Clone)]
pub struct UncleId {
/// Block id.
pub block: BlockId,
/// Position in block.
pub position: usize,
}