mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
99 lines
3.8 KiB
C++
99 lines
3.8 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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* 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 <libsolidity/analysis/OverrideChecker.h>
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#include <liblangutil/SourceLocation.h>
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#include <map>
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#include <functional>
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#include <set>
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namespace solidity::langutil
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{
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class ErrorReporter;
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}
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namespace solidity::frontend
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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 file, 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_overrideChecker{_errorReporter},
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m_errorReporter(_errorReporter)
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{}
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/// Performs checks on the given source ast.
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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(SourceUnit const& _sourceUnit);
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private:
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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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/// 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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void checkReceiveFunction(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);
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/// Checks for unimplemented functions and modifiers.
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void checkAbstractDefinitions(ContractDefinition const& _contract);
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/// Checks that the base constructor arguments are properly provided.
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/// Fills the list of unimplemented functions in _contract's annotations.
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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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/// 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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/// Checks base contracts for ABI compatibility
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void checkBaseABICompatibility(ContractDefinition const& _contract);
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/// Warns if the contract has a payable fallback, but no receive ether function.
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void checkPayableFallbackWithoutReceive(ContractDefinition const& _contract);
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/// Error if the contract requires too much storage
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void checkStorageSize(ContractDefinition const& _contract);
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OverrideChecker m_overrideChecker;
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langutil::ErrorReporter& m_errorReporter;
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};
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}
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