9c595aff95
* Feed in ActionParams on VM creation
* Fix ethcore after Vm interface change
* Move informant inside Interpreter struct
* Move do_trace to Interpreter struct
* Move all remaining exec variables to Interpreter struct
* Refactor VM to allow single opcode step
* Fix all EVM tests
* Fix all wasm tests
* Fix wasm runner tests
* Fix a check case where code length is zero
* Fix jsontests compile
* Fix cargo lock
* Use match instead of expect
* Use cheaper check reader.len() == 0 for the initial special case
* Get rid of try_and_done! macro by using Result<(), ReturnType>
* Use Never instead of ()
* Fix parity-bytes path
* Bypass gasometer lifetime problem by borrow only for a instance
* typo: missing {
* Fix ethcore test compile
* Fix evm tests
63 lines
1.9 KiB
Rust
63 lines
1.9 KiB
Rust
// Copyright 2015-2018 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 trie::TrieFactory;
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use ethtrie::RlpCodec;
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use account_db::Factory as AccountFactory;
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use evm::{Factory as EvmFactory, VMType};
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use vm::{Vm, ActionParams, Schedule};
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use wasm::WasmInterpreter;
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use keccak_hasher::KeccakHasher;
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const WASM_MAGIC_NUMBER: &'static [u8; 4] = b"\0asm";
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/// Virtual machine factory
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#[derive(Default, Clone)]
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pub struct VmFactory {
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evm: EvmFactory,
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}
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impl VmFactory {
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pub fn create(&self, params: ActionParams, schedule: &Schedule, depth: usize) -> Box<Vm> {
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if schedule.wasm.is_some() && params.code.as_ref().map_or(false, |code| code.len() > 4 && &code[0..4] == WASM_MAGIC_NUMBER) {
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Box::new(WasmInterpreter::new(params))
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} else {
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self.evm.create(params, schedule, depth)
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}
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}
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pub fn new(evm: VMType, cache_size: usize) -> Self {
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VmFactory { evm: EvmFactory::new(evm, cache_size) }
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}
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}
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impl From<EvmFactory> for VmFactory {
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fn from(evm: EvmFactory) -> Self {
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VmFactory { evm: evm }
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}
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}
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/// Collection of factories.
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#[derive(Default, Clone)]
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pub struct Factories {
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/// factory for evm.
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pub vm: VmFactory,
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/// factory for tries.
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pub trie: TrieFactory<KeccakHasher, RlpCodec>,
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/// factory for account databases.
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pub accountdb: AccountFactory,
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}
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