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Diffstat (limited to 'clang-tools-extra/clang-tidy/google/StringReferenceMemberCheck.h')
| -rw-r--r-- | clang-tools-extra/clang-tidy/google/StringReferenceMemberCheck.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/clang-tools-extra/clang-tidy/google/StringReferenceMemberCheck.h b/clang-tools-extra/clang-tidy/google/StringReferenceMemberCheck.h new file mode 100644 index 00000000000..4b4bff62d8c --- /dev/null +++ b/clang-tools-extra/clang-tidy/google/StringReferenceMemberCheck.h @@ -0,0 +1,50 @@ +//===--- StringReferenceMemberCheck.h - clang-tidy ----------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_STRING_REF_MEMBER_CHECK_H +#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_STRING_REF_MEMBER_CHECK_H + +#include "../ClangTidy.h" + +namespace clang { +namespace tidy { +namespace runtime { + +/// \brief Finds members of type 'const string&'. +/// +/// const string reference members are generally considered unsafe as they can +/// be created from a temporary quite easily. +/// +/// \code +/// struct S { +/// S(const string &Str) : Str(Str) {} +/// const string &Str; +/// }; +/// S instance("string"); +/// \endcode +/// +/// In the constructor call a string temporary is created from const char * and +/// destroyed immediately after the call. This leaves around a dangling +/// reference. +/// +/// This check emit warnings for both std::string and ::string const reference +/// members. +/// +/// Corresponding cpplint.py check name: 'runtime/member_string_reference'. +class StringReferenceMemberCheck : public ClangTidyCheck { +public: + void registerMatchers(ast_matchers::MatchFinder *Finder) override; + void check(const ast_matchers::MatchFinder::MatchResult &Result) override; +}; + +} // namespace runtime +} // namespace tidy +} // namespace clang + +#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_STRING_REF_MEMBER_CHECK_H |

