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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_FUCHSIA_MULTIPLEINHERITANCECHECK_H10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_FUCHSIA_MULTIPLEINHERITANCECHECK_H11 12#include "../ClangTidyCheck.h"13 14namespace clang::tidy::fuchsia {15 16/// Multiple implementation inheritance is discouraged.17///18/// For the user-facing documentation see:19/// https://clang.llvm.org/extra/clang-tidy/checks/fuchsia/multiple-inheritance.html20class MultipleInheritanceCheck : public ClangTidyCheck {21public:22 MultipleInheritanceCheck(StringRef Name, ClangTidyContext *Context)23 : ClangTidyCheck(Name, Context) {}24 bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {25 return LangOpts.CPlusPlus;26 }27 void registerMatchers(ast_matchers::MatchFinder *Finder) override;28 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;29 30 void onEndOfTranslationUnit() override { InterfaceMap.clear(); }31 32private:33 void addNodeToInterfaceMap(const CXXRecordDecl *Node, bool IsInterface);34 bool getInterfaceStatus(const CXXRecordDecl *Node, bool &IsInterface) const;35 bool isCurrentClassInterface(const CXXRecordDecl *Node) const;36 bool isInterface(const CXXRecordDecl *Node);37 38 // Contains the identity of each named CXXRecord as an interface. This is39 // used to memoize lookup speeds and improve performance from O(N^2) to O(N),40 // where N is the number of classes.41 llvm::StringMap<bool> InterfaceMap;42};43 44} // namespace clang::tidy::fuchsia45 46#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_FUCHSIA_MULTIPLEINHERITANCECHECK_H47