mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
78 lines
2.4 KiB
C++
78 lines
2.4 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/UnusedFunctionsCommon.h>
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#include <libyul/Dialect.h>
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#include <liblangutil/SourceLocation.h>
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#include <libsolutil/CommonData.h>
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using namespace solidity;
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using namespace solidity::util;
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using namespace solidity::yul;
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using namespace solidity::yul::unusedFunctionsCommon;
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FunctionDefinition unusedFunctionsCommon::createLinkingFunction(
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FunctionDefinition const& _original,
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std::pair<std::vector<bool>, std::vector<bool>> const& _usedParametersAndReturns,
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YulString const& _originalFunctionName,
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YulString const& _linkingFunctionName,
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NameDispenser& _nameDispenser
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)
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{
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auto generateTypedName = [&](TypedName t)
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{
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return TypedName{
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t.location,
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_nameDispenser.newName(t.name),
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t.type
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};
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};
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langutil::SourceLocation loc = _original.location;
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FunctionDefinition linkingFunction{
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loc,
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_linkingFunctionName,
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util::applyMap(_original.parameters, generateTypedName),
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util::applyMap(_original.returnVariables, generateTypedName),
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{loc, {}} // body
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};
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FunctionCall call{loc, Identifier{loc, _originalFunctionName}, {}};
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for (auto const& p: filter(linkingFunction.parameters, _usedParametersAndReturns.first))
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call.arguments.emplace_back(Identifier{loc, p.name});
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Assignment assignment{loc, {}, nullptr};
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for (auto const& r: filter(linkingFunction.returnVariables, _usedParametersAndReturns.second))
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assignment.variableNames.emplace_back(Identifier{loc, r.name});
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if (assignment.variableNames.empty())
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linkingFunction.body.statements.emplace_back(ExpressionStatement{loc, std::move(call)});
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else
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{
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assignment.value = std::make_unique<Expression>(std::move(call));
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linkingFunction.body.statements.emplace_back(std::move(assignment));
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}
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return linkingFunction;
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}
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