42 lines
1.6 KiB
Rust
42 lines
1.6 KiB
Rust
// Copyright 2015-2019 Parity Technologies (UK) Ltd.
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// This file is part of Parity Ethereum.
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// Parity Ethereum 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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// Parity Ethereum 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 Parity Ethereum. If not, see <http://www.gnu.org/licenses/>.
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//! Bridge between Tracedb and Blockchain.
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use blockchain::{BlockChain, BlockProvider, TransactionAddress};
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use ethereum_types::H256;
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use trace::DatabaseExtras as TraceDatabaseExtras;
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use types::BlockNumber;
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impl TraceDatabaseExtras for BlockChain {
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fn block_hash(&self, block_number: BlockNumber) -> Option<H256> {
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(self as &dyn BlockProvider).block_hash(block_number)
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}
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fn transaction_hash(&self, block_number: BlockNumber, tx_position: usize) -> Option<H256> {
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(self as &dyn BlockProvider)
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.block_hash(block_number)
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.and_then(|block_hash| {
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let tx_address = TransactionAddress {
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block_hash: block_hash,
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index: tx_position,
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};
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self.transaction(&tx_address)
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})
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.map(|tx| tx.hash())
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}
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}
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