2017-12-04 15:42:18 +00:00
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/*
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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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2020-07-17 14:54:12 +00:00
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// SPDX-License-Identifier: GPL-3.0
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2017-12-04 15:42:18 +00:00
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/**
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* Optimiser component that changes the code so that it consists of a block starting with
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* a single block followed only by function definitions and with no functions defined
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* anywhere else.
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*/
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2018-10-15 09:52:35 +00:00
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#include <libyul/optimiser/FunctionHoister.h>
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2019-01-15 12:40:10 +00:00
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#include <libyul/optimiser/OptimizerUtilities.h>
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2020-10-29 14:00:27 +00:00
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#include <libyul/AST.h>
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2017-12-04 15:42:18 +00:00
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2020-01-06 10:52:23 +00:00
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#include <libsolutil/CommonData.h>
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2017-12-04 15:42:18 +00:00
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2019-12-11 16:31:36 +00:00
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using namespace solidity;
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using namespace solidity::yul;
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2017-12-04 15:42:18 +00:00
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void FunctionHoister::operator()(Block& _block)
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{
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bool topLevel = m_isTopLevel;
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m_isTopLevel = false;
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for (auto&& statement: _block.statements)
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{
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2019-11-19 15:42:49 +00:00
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std::visit(*this, statement);
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2023-08-23 02:03:44 +00:00
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if (std::holds_alternative<FunctionDefinition>(statement))
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2017-12-04 15:42:18 +00:00
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{
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m_functions.emplace_back(std::move(statement));
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2021-04-27 14:53:04 +00:00
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statement = Block{_block.debugData, {}};
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2017-12-04 15:42:18 +00:00
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}
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}
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2018-02-08 19:03:36 +00:00
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removeEmptyBlocks(_block);
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2017-12-04 15:42:18 +00:00
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if (topLevel)
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_block.statements += std::move(m_functions);
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}
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