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
105 lines
2.8 KiB
Rust
105 lines
2.8 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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//! Evm factory.
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//!
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use std::sync::Arc;
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use vm::{Vm, Schedule};
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use ethereum_types::U256;
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use super::vm::ActionParams;
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use super::interpreter::SharedCache;
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use super::vmtype::VMType;
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/// Evm factory. Creates appropriate Evm.
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#[derive(Clone)]
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pub struct Factory {
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evm: VMType,
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evm_cache: Arc<SharedCache>,
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}
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impl Factory {
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/// Create fresh instance of VM
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/// Might choose implementation depending on supplied gas.
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pub fn create(&self, params: ActionParams, schedule: &Schedule, depth: usize) -> Box<Vm> {
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match self.evm {
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VMType::Interpreter => if Self::can_fit_in_usize(¶ms.gas) {
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Box::new(super::interpreter::Interpreter::<usize>::new(params, self.evm_cache.clone(), schedule, depth))
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} else {
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Box::new(super::interpreter::Interpreter::<U256>::new(params, self.evm_cache.clone(), schedule, depth))
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}
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}
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}
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/// Create new instance of specific `VMType` factory, with a size in bytes
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/// for caching jump destinations.
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pub fn new(evm: VMType, cache_size: usize) -> Self {
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Factory {
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evm: evm,
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evm_cache: Arc::new(SharedCache::new(cache_size)),
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}
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}
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fn can_fit_in_usize(gas: &U256) -> bool {
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gas == &U256::from(gas.low_u64() as usize)
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}
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}
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impl Default for Factory {
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/// Returns native rust evm factory
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fn default() -> Factory {
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Factory {
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evm: VMType::Interpreter,
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evm_cache: Arc::new(SharedCache::default()),
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}
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}
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}
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#[test]
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fn test_create_vm() {
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use vm::Ext;
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use vm::tests::FakeExt;
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use bytes::Bytes;
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let mut params = ActionParams::default();
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params.code = Some(Arc::new(Bytes::default()));
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let ext = FakeExt::new();
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let _vm = Factory::default().create(params, ext.schedule(), ext.depth());
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}
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/// Create tests by injecting different VM factories
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#[macro_export]
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macro_rules! evm_test(
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($name_test: ident: $name_int: ident) => {
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#[test]
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fn $name_int() {
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$name_test(Factory::new(VMType::Interpreter, 1024 * 32));
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}
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}
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);
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/// Create ignored tests by injecting different VM factories
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#[macro_export]
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macro_rules! evm_test_ignore(
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($name_test: ident: $name_int: ident) => {
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#[test]
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#[ignore]
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#[cfg(feature = "ignored-tests")]
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fn $name_int() {
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$name_test(Factory::new(VMType::Interpreter, 1024 * 32));
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}
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}
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);
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