mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
70 lines
1.9 KiB
C++
70 lines
1.9 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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#include <libyul/optimiser/ForLoopConditionIntoBody.h>
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#include <libyul/optimiser/OptimiserStep.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 ForLoopConditionIntoBody::run(OptimiserStepContext& _context, Block& _ast)
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{
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ForLoopConditionIntoBody{_context.dialect}(_ast);
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}
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void ForLoopConditionIntoBody::operator()(ForLoop& _forLoop)
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{
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if (
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m_dialect.booleanNegationFunction() &&
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!holds_alternative<Literal>(*_forLoop.condition) &&
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!holds_alternative<Identifier>(*_forLoop.condition)
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)
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{
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shared_ptr<DebugData const> debugData = debugDataOf(*_forLoop.condition);
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_forLoop.body.statements.emplace(
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begin(_forLoop.body.statements),
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If {
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debugData,
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make_unique<Expression>(
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FunctionCall {
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debugData,
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{debugData, m_dialect.booleanNegationFunction()->name},
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util::make_vector<Expression>(std::move(*_forLoop.condition))
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}
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),
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Block {debugData, util::make_vector<Statement>(Break{{}})}
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}
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);
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_forLoop.condition = make_unique<Expression>(
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Literal {
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debugData,
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LiteralKind::Boolean,
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"true"_yulstring,
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m_dialect.boolType
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}
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);
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}
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ASTModifier::operator()(_forLoop);
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}
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