| 1 | //===--- MultipleInheritanceCheck.h - clang-tidy-----------------*- C++ -*-===// |
|---|---|
| 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-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_FUCHSIA_MULTIPLE_INHERITANCE_H |
| 10 | #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_FUCHSIA_MULTIPLE_INHERITANCE_H |
| 11 | |
| 12 | #include "../ClangTidyCheck.h" |
| 13 | |
| 14 | namespace clang::tidy::fuchsia { |
| 15 | |
| 16 | /// Multiple implementation inheritance is discouraged. |
| 17 | /// |
| 18 | /// For the user-facing documentation see: |
| 19 | /// http://clang.llvm.org/extra/clang-tidy/checks/fuchsia/multiple-inheritance.html |
| 20 | class MultipleInheritanceCheck : public ClangTidyCheck { |
| 21 | public: |
| 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 | |
| 32 | private: |
| 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 is |
| 39 | // 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::fuchsia |
| 45 | |
| 46 | #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_FUCHSIA_MULTIPLE_INHERITANCE_H |
| 47 |