mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
66 lines
1.7 KiB
C++
66 lines
1.7 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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* Helper class that keeps track of the types while performing optimizations.
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*/
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#pragma once
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#include <libyul/ASTForward.h>
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#include <libyul/YulString.h>
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#include <vector>
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#include <map>
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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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* Helper class that keeps track of the types while performing optimizations.
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*
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* Only works on disambiguated sources!
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*/
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class TypeInfo
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{
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public:
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TypeInfo(Dialect const& _dialect, Block const& _ast);
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void setVariableType(YulString _name, YulString _type) { m_variableTypes[_name] = _type; }
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/// @returns the type of an expression that is assumed to return exactly one value.
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YulString typeOf(Expression const& _expression) const;
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/// \returns the type of variable
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YulString typeOfVariable(YulString _name) const;
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private:
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class TypeCollector;
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struct FunctionType
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{
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std::vector<YulString> parameters;
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std::vector<YulString> returns;
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};
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Dialect const& m_dialect;
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std::map<YulString, YulString> m_variableTypes;
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std::map<YulString, FunctionType> m_functionTypes;
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};
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}
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