mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
77 lines
2.1 KiB
C++
77 lines
2.1 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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#pragma once
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#include <libyul/ASTForward.h>
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#include <libyul/optimiser/ASTWalker.h>
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#include <libyul/YulString.h>
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#include <libyul/optimiser/OptimiserStep.h>
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#include <map>
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#include <set>
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#include <string>
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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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* Pass to "simplify" all identifier names.
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*
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* The purpose of this is to make generated code more readable, but also
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* to remove AST identifiers that could lead to a different sorting order
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* and thus influence e.g. the order of function inlining.
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*
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* Prerequisites: Disambiguator, FunctionHoister, FunctionGrouper
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*/
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class NameSimplifier: public ASTModifier
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{
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public:
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static constexpr char const* name{"NameSimplifier"};
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static void run(OptimiserStepContext& _context, Block& _ast)
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{
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NameSimplifier{_context, _ast}(_ast);
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}
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using ASTModifier::operator();
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void operator()(VariableDeclaration& _varDecl) override;
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void operator()(Identifier& _identifier) override;
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void operator()(FunctionCall& _funCall) override;
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void operator()(FunctionDefinition& _funDef) override;
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private:
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NameSimplifier(
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OptimiserStepContext& _context,
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Block const& _ast
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);
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/// Tries to rename a list of variables.
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void renameVariables(std::vector<TypedName>& _variables);
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void findSimplification(YulString _name);
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void translate(YulString& _name);
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OptimiserStepContext& m_context;
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std::set<YulString> m_usedNames;
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std::map<YulString, YulString> m_translations;
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};
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}
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