mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
67 lines
1.8 KiB
C++
67 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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/**
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* Optimiser component that identifies functions to be inlined.
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*/
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#pragma once
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#include <libyul/AsmDataForward.h>
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#include <libyul/optimiser/ASTWalker.h>
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#include <set>
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namespace yul
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{
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/**
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* Optimiser component that finds functions that can be
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* inlined inside functional expressions, i.e. functions that
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* - have a single return parameter r
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* - have a body like r := <functional expression>
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* - neither reference themselves nor r in the right hand side
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*
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* This component can only be used on sources with unique names.
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*/
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class InlinableExpressionFunctionFinder: public ASTWalker
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{
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public:
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std::map<YulString, FunctionDefinition const*> const& inlinableFunctions() const
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{
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return m_inlinableFunctions;
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}
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using ASTWalker::operator();
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void operator()(Identifier const& _identifier) override;
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void operator()(FunctionCall const& _funCall) override;
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void operator()(FunctionDefinition const& _function) override;
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private:
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void checkAllowed(YulString _name)
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{
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if (m_disallowedIdentifiers.count(_name))
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m_foundDisallowedIdentifier = true;
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}
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bool m_foundDisallowedIdentifier = false;
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std::set<YulString> m_disallowedIdentifiers;
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std::map<YulString, FunctionDefinition const*> m_inlinableFunctions;
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};
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}
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