================ @@ -0,0 +1,39 @@ +//===--- CastToStructCheck.h - clang-tidy -----------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_CASTTOSTRUCTCHECK_H +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_CASTTOSTRUCTCHECK_H + +#include "../ClangTidyCheck.h" + +namespace clang::tidy::bugprone { + +/// Finds casts from pointers to struct or scalar type to pointers to struct +/// type. +/// +/// For the user-facing documentation see: +/// http://clang.llvm.org/extra/clang-tidy/checks/bugprone/cast-to-struct.html +class CastToStructCheck : public ClangTidyCheck { +public: + CastToStructCheck(StringRef Name, ClangTidyContext *Context); + void storeOptions(ClangTidyOptions::OptionMap &Opts) override; + void registerMatchers(ast_matchers::MatchFinder *Finder) override; + void check(const ast_matchers::MatchFinder::MatchResult &Result) override; + bool isLanguageVersionSupported(const LangOptions &LangOpts) const override { + return LangOpts.C99; ---------------- balazske wrote:
I think in C++ the problem can be handled in different way. C-style cast is discouraged in C++, so all C style casts should be converted to other kind of cast (this is job of another checker, probably it exists already). The `reinterpret_cast` indicates already by syntax that it is a potentially dangerous operation and many uses of `reinterpret_cast` would be likely found by the checker (if it checks for it in similar way), so a checker is not much more than find all uses of `reinterpret_cast`. It is possible to check exact data layout but probably still many false positives would appear. Additionally in C++ the casting rules are more complicated at least because inheritance. https://github.com/llvm/llvm-project/pull/153428 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
