mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
74 lines
2.0 KiB
C++
74 lines
2.0 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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* Optimiser component that makes all identifiers unique.
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*/
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#pragma once
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#include <libyul/ASTForward.h>
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#include <libyul/AsmAnalysisInfo.h>
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#include <libyul/optimiser/ASTCopier.h>
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#include <libyul/optimiser/NameDispenser.h>
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#include <optional>
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#include <set>
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namespace solidity::yul
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{
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struct Dialect;
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/**
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* Creates a copy of a Yul AST replacing all identifiers by unique names.
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*/
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class Disambiguator: public ASTCopier
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{
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public:
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explicit Disambiguator(
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Dialect const& _dialect,
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AsmAnalysisInfo const& _analysisInfo,
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std::set<YulString> const& _externallyUsedIdentifiers = {}
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):
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m_info(_analysisInfo),
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m_dialect(_dialect),
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m_externallyUsedIdentifiers(_externallyUsedIdentifiers),
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m_nameDispenser(_dialect, m_externallyUsedIdentifiers)
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{
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}
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protected:
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void enterScope(Block const& _block) override;
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void leaveScope(Block const& _block) override;
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void enterFunction(FunctionDefinition const& _function) override;
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void leaveFunction(FunctionDefinition const& _function) override;
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YulString translateIdentifier(YulString _name) override;
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void enterScopeInternal(Scope& _scope);
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void leaveScopeInternal(Scope& _scope);
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AsmAnalysisInfo const& m_info;
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Dialect const& m_dialect;
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std::set<YulString> const& m_externallyUsedIdentifiers;
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std::vector<Scope*> m_scopes;
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std::map<void const*, YulString> m_translations;
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NameDispenser m_nameDispenser;
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};
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}
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