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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/>.
*/
// SPDX-License-Identifier: GPL-3.0
#include <libyul/optimiser/ForLoopInitRewriter.h>
#include <libyul/AST.h>
#include <libsolutil/CommonData.h>
#include <functional>
using namespace std;
using namespace solidity;
using namespace solidity::yul;
void ForLoopInitRewriter::operator()(Block& _block)
{
util::iterateReplacing(
_block.statements,
[&](Statement& _stmt) -> std::optional<vector<Statement>>
{
if (holds_alternative<ForLoop>(_stmt))
{
auto& forLoop = std::get<ForLoop>(_stmt);
(*this)(forLoop.pre);
(*this)(forLoop.body);
(*this)(forLoop.post);
vector<Statement> rewrite;
swap(rewrite, forLoop.pre.statements);
rewrite.emplace_back(move(forLoop));
return { std::move(rewrite) };
}
else
{
visit(_stmt);
return {};
}
}
);
}