92 lines
2.4 KiB
Rust
92 lines
2.4 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
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// This file is part of Parity.
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// Parity 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 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. If not, see <http://www.gnu.org/licenses/>.
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use util::rlp::*;
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use util::numbers::{Uint, U256};
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use util::hash::{H64, Address, H256};
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use ethjson;
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/// Genesis seal type.
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pub enum Seal {
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/// Classic ethereum seal.
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Ethereum {
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/// Seal nonce.
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nonce: H64,
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/// Seal mix hash.
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mix_hash: H256,
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},
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/// Generic seal.
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Generic {
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/// Number of seal fields.
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fields: usize,
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/// Seal rlp.
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rlp: Vec<u8>,
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},
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}
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/// Genesis components.
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pub struct Genesis {
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/// Seal.
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pub seal: Seal,
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/// Difficulty.
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pub difficulty: U256,
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/// Author.
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pub author: Address,
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/// Timestamp.
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pub timestamp: u64,
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/// Parent hash.
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pub parent_hash: H256,
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/// Gas limit.
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pub gas_limit: U256,
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/// Transactions root.
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pub transactions_root: H256,
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/// Receipts root.
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pub receipts_root: H256,
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/// State root.
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pub state_root: Option<H256>,
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/// Gas used.
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pub gas_used: U256,
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/// Extra data.
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pub extra_data: Vec<u8>,
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}
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impl From<ethjson::spec::Genesis> for Genesis {
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fn from(g: ethjson::spec::Genesis) -> Self {
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Genesis {
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seal: match (g.nonce, g.mix_hash) {
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(Some(nonce), Some(mix_hash)) => Seal::Ethereum {
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nonce: nonce.into(),
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mix_hash: mix_hash.into(),
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},
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_ => Seal::Generic {
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fields: g.seal_fields.unwrap(),
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rlp: g.seal_rlp.unwrap().into(),
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}
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},
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difficulty: g.difficulty.into(),
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author: g.author.into(),
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timestamp: g.timestamp.into(),
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parent_hash: g.parent_hash.into(),
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gas_limit: g.gas_limit.into(),
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transactions_root: g.transactions_root.map_or_else(|| SHA3_NULL_RLP.clone(), Into::into),
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receipts_root: g.receipts_root.map_or_else(|| SHA3_NULL_RLP.clone(), Into::into),
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state_root: g.state_root.map(Into::into),
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gas_used: g.gas_used.map_or_else(U256::zero, Into::into),
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extra_data: g.extra_data.map_or_else(Vec::new, Into::into),
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}
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}
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}
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