mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
87 lines
3.3 KiB
C++
87 lines
3.3 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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* Component that verifies overloads, abstract contracts, function clashes and others
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* checks at contract or function level.
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*/
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#pragma once
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#include <libsolidity/ast/ASTForward.h>
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#include <map>
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namespace langutil
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{
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class ErrorReporter;
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}
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namespace dev
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{
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namespace solidity
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{
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/**
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* Component that verifies overloads, abstract contracts, function clashes and others
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* checks at contract or function level.
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*/
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class ContractLevelChecker
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{
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public:
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/// @param _errorReporter provides the error logging functionality.
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explicit ContractLevelChecker(langutil::ErrorReporter& _errorReporter):
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m_errorReporter(_errorReporter)
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{}
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/// Performs checks on the given contract.
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/// @returns true iff all checks passed. Note even if all checks passed, errors() can still contain warnings
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bool check(ContractDefinition const& _contract);
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private:
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/// Checks that two functions defined in this contract with the same name have different
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/// arguments and that there is at most one constructor.
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void checkDuplicateFunctions(ContractDefinition const& _contract);
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void checkDuplicateEvents(ContractDefinition const& _contract);
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template <class T>
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void findDuplicateDefinitions(std::map<std::string, std::vector<T>> const& _definitions, std::string _message);
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void checkIllegalOverrides(ContractDefinition const& _contract);
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/// Reports a type error with an appropriate message if overridden function signature differs.
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/// Also stores the direct super function in the AST annotations.
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void checkFunctionOverride(FunctionDefinition const& function, FunctionDefinition const& super);
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void overrideError(FunctionDefinition const& function, FunctionDefinition const& super, std::string message);
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void checkAbstractFunctions(ContractDefinition const& _contract);
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void checkBaseConstructorArguments(ContractDefinition const& _contract);
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void annotateBaseConstructorArguments(
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ContractDefinition const& _currentContract,
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FunctionDefinition const* _baseConstructor,
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ASTNode const* _argumentNode
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);
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void checkConstructor(ContractDefinition const& _contract);
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void checkFallbackFunction(ContractDefinition const& _contract);
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/// Checks that different functions with external visibility end up having different
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/// external argument types (i.e. different signature).
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void checkExternalTypeClashes(ContractDefinition const& _contract);
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/// Checks for hash collisions in external function signatures.
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void checkHashCollisions(ContractDefinition const& _contract);
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/// Checks that all requirements for a library are fulfilled if this is a library.
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void checkLibraryRequirements(ContractDefinition const& _contract);
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langutil::ErrorReporter& m_errorReporter;
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};
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}
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}
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