solidity/libevmasm/SimplificationRule.h

59 lines
1.4 KiB
C++

/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Expression simplification pattern.
*/
#pragma once
#include <functional>
namespace dev
{
namespace eth
{
/**
* Rule that contains a pattern, an action that can be applied
* after the pattern has matched and a bool that indicates
* whether the action would remove something from the expression
* than is not a constant literal.
*/
template <class Pattern>
struct SimplificationRule
{
SimplificationRule(
Pattern _pattern,
std::function<Pattern()> _action,
bool _removesNonConstants,
std::function<bool()> _feasible = {}
):
pattern(std::move(_pattern)),
action(std::move(_action)),
removesNonConstants(_removesNonConstants),
feasible(std::move(_feasible))
{}
Pattern pattern;
std::function<Pattern()> action;
bool removesNonConstants;
std::function<bool()> feasible;
};
}
}