mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
/*
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This file is part of solidity.
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solidity 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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solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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// SPDX-License-Identifier: GPL-3.0
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/**
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* Changes the topmost block to be a function with a specific name ("main") which has no
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* inputs nor outputs.
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*/
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#include <libyul/optimiser/MainFunction.h>
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#include <libyul/optimiser/NameCollector.h>
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#include <libyul/Exceptions.h>
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#include <libyul/AST.h>
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#include <libsolutil/CommonData.h>
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using namespace std;
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using namespace solidity;
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using namespace solidity::yul;
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void MainFunction::operator()(Block& _block)
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{
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assertThrow(_block.statements.size() >= 1, OptimizerException, "");
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assertThrow(holds_alternative<Block>(_block.statements[0]), OptimizerException, "");
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for (size_t i = 1; i < _block.statements.size(); ++i)
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assertThrow(holds_alternative<FunctionDefinition>(_block.statements.at(i)), OptimizerException, "");
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/// @todo this should handle scopes properly and instead of an assertion it should rename the conflicting function
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assertThrow(NameCollector(_block).names().count("main"_yulstring) == 0, OptimizerException, "");
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Block& block = std::get<Block>(_block.statements[0]);
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FunctionDefinition main{
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block.location,
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"main"_yulstring,
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{},
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{},
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std::move(block)
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};
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_block.statements[0] = std::move(main);
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}
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