path: root/libyul/optimiser/Substitution.h

/*
    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/>.
*/
/**
 * Specific AST copier that replaces certain identifiers with expressions.
 */

#pragma once

#include <libyul/optimiser/ASTCopier.h>
#include <libyul/YulString.h>

#include <map>

namespace yul
{

/**
 * Specific AST copier that replaces certain identifiers with expressions.
 */
class Substitution: public ASTCopier
{
public:
    Substitution(std::map<YulString, Expression const*> const& _substitutions):
        m_substitutions(_substitutions)
    {}
    Expression translate(Expression const& _expression) override;

private:
    std::map<YulString, Expression const*> const& m_substitutions;
};

}