76 lines
1.8 KiB
Rust
76 lines
1.8 KiB
Rust
// Copyright 2015-2017 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::fmt;
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/// Type of EVM to use.
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#[derive(Debug, PartialEq, Clone)]
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pub enum VMType {
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/// JIT EVM
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#[cfg(feature = "jit")]
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Jit,
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/// RUST EVM
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Interpreter
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}
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impl fmt::Display for VMType {
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#[cfg(feature="jit")]
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{}", match *self {
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VMType::Jit => "JIT",
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VMType::Interpreter => "INT"
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})
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}
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#[cfg(not(feature="jit"))]
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{}", match *self {
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VMType::Interpreter => "INT"
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})
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}
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}
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impl Default for VMType {
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fn default() -> Self {
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VMType::Interpreter
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}
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}
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impl VMType {
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/// Return all possible VMs (JIT, Interpreter)
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#[cfg(feature = "jit")]
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pub fn all() -> Vec<VMType> {
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vec![VMType::Jit, VMType::Interpreter]
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}
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/// Return all possible VMs (Interpreter)
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#[cfg(not(feature = "jit"))]
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pub fn all() -> Vec<VMType> {
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vec![VMType::Interpreter]
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}
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/// Return new jit if it's possible
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#[cfg(not(feature = "jit"))]
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pub fn jit() -> Option<Self> {
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None
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}
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/// Return new jit if it's possible
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#[cfg(feature = "jit")]
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pub fn jit() -> Option<Self> {
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Some(VMType::Jit)
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}
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}
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