64 lines
1.6 KiB
Rust
64 lines
1.6 KiB
Rust
// Copyright 2015, 2016 Parity Technologies (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 std::collections::BTreeMap;
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use util::Address;
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use builtin::Builtin;
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use engines::Engine;
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use spec::CommonParams;
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use evm::Schedule;
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use env_info::EnvInfo;
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/// An engine which does not provide any consensus mechanism and does not seal blocks.
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pub struct NullEngine {
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params: CommonParams,
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builtins: BTreeMap<Address, Builtin>,
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}
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impl NullEngine {
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/// Returns new instance of NullEngine with default VM Factory
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pub fn new(params: CommonParams, builtins: BTreeMap<Address, Builtin>) -> Self {
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NullEngine{
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params: params,
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builtins: builtins,
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}
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}
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}
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impl Default for NullEngine {
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fn default() -> Self {
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Self::new(Default::default(), Default::default())
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}
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}
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impl Engine for NullEngine {
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fn name(&self) -> &str {
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"NullEngine"
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}
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fn params(&self) -> &CommonParams {
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&self.params
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}
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fn builtins(&self) -> &BTreeMap<Address, Builtin> {
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&self.builtins
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}
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fn schedule(&self, _env_info: &EnvInfo) -> Schedule {
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Schedule::new_homestead()
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}
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}
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