libyul/optimiser/Substitution.cpp


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/*
    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.
 */

#include <libyul/optimiser/Substitution.h>

#include <libyul/AsmData.h>

using namespace std;
using namespace dev;
using namespace yul;

Expression Substitution::translate(Expression const& _expression)
{
    if (_expression.type() == typeid(Identifier))
    {
        YulString name = boost::get<Identifier>(_expression).name;
        if (m_substitutions.count(name))
            // No recursive substitution
            return ASTCopier().translate(*m_substitutions.at(name));
    }
    return ASTCopier::translate(_expression);
}