mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
93 lines
3.1 KiB
C++
93 lines
3.1 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 <libsolidity/ast/ASTEnums.h>
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#include <libsolidity/ast/ASTForward.h>
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#include <libsolidity/ast/ASTVisitor.h>
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#include <map>
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#include <memory>
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#include <optional>
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namespace solidity::langutil
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{
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class ErrorReporter;
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struct SourceLocation;
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}
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namespace solidity::frontend
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{
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class ViewPureChecker: private ASTConstVisitor
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{
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public:
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ViewPureChecker(std::vector<std::shared_ptr<ASTNode>> const& _ast, langutil::ErrorReporter& _errorReporter):
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m_ast(_ast), m_errorReporter(_errorReporter) {}
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bool check();
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private:
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struct MutabilityAndLocation
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{
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StateMutability mutability;
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langutil::SourceLocation location;
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};
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bool visit(ImportDirective const&) override;
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bool visit(FunctionDefinition const& _funDef) override;
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void endVisit(FunctionDefinition const& _funDef) override;
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void endVisit(BinaryOperation const& _binaryOperation) override;
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void endVisit(UnaryOperation const& _unaryOperation) override;
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bool visit(ModifierDefinition const& _modifierDef) override;
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void endVisit(ModifierDefinition const& _modifierDef) override;
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void endVisit(Identifier const& _identifier) override;
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bool visit(MemberAccess const& _memberAccess) override;
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void endVisit(MemberAccess const& _memberAccess) override;
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void endVisit(IndexAccess const& _indexAccess) override;
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void endVisit(IndexRangeAccess const& _indexAccess) override;
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void endVisit(ModifierInvocation const& _modifier) override;
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void endVisit(FunctionCall const& _functionCall) override;
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void endVisit(InlineAssembly const& _inlineAssembly) override;
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/// Called when an element of mutability @a _mutability is encountered.
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/// Creates appropriate warnings and errors and sets @a m_currentBestMutability.
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void reportMutability(
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StateMutability _mutability,
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langutil::SourceLocation const& _location,
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std::optional<langutil::SourceLocation> const& _nestedLocation = {}
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);
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void reportFunctionCallMutability(StateMutability _mutability, langutil::SourceLocation const& _location);
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/// Determines the mutability of modifier if not already cached.
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MutabilityAndLocation const& modifierMutability(ModifierDefinition const& _modifier);
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std::vector<std::shared_ptr<ASTNode>> const& m_ast;
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langutil::ErrorReporter& m_errorReporter;
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bool m_errors = false;
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MutabilityAndLocation m_bestMutabilityAndLocation = MutabilityAndLocation{StateMutability::Payable, langutil::SourceLocation()};
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FunctionDefinition const* m_currentFunction = nullptr;
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std::map<ModifierDefinition const*, MutabilityAndLocation> m_inferredMutability;
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};
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}
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