clang-tools-extra/clang-tidy/misc/UseAnonymousNamespaceCheck.h

   1 //===--- UseAnonymousNamespaceCheck.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_MISC_USEANONYMOUSNAMESPACECHECK_H
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_USEANONYMOUSNAMESPACECHECK_H
  11
  12 #include "../ClangTidyCheck.h"
  13 #include "../utils/FileExtensionsUtils.h"
  14
  15 namespace clang::tidy::misc {
  16
  17 /// Warns when using 'static' functions or variables at global scope, and
  18 /// suggests moving them to an anonymous namespace.
  19 ///
  20 /// The check supports these options:
  21 ///   - `HeaderFileExtensions`: a semicolon-separated list of filename
  22 ///     extensions of header files (The filename extension should not contain
  23 ///     "." prefix). ";h;hh;hpp;hxx" by default.
  24 ///
  25 ///     For extension-less header files, using an empty string or leaving an
  26 ///     empty string between ";" if there are other filename extensions.
  27 ///
  28 /// For the user-facing documentation see:
  29 /// http://clang.llvm.org/extra/clang-tidy/checks/misc/use-anonymous-namespace.html
  30 class UseAnonymousNamespaceCheck : public ClangTidyCheck {
  31 public:
  32   UseAnonymousNamespaceCheck(StringRef Name, ClangTidyContext *Context);
  33   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
  34     return LangOpts.CPlusPlus;
  35   }
  36   void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
  37   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  38   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  39
  40 private:
  41   StringRef RawStringHeaderFileExtensions;
  42   FileExtensionsSet HeaderFileExtensions;
  43 };
  44
  45 } // namespace clang::tidy::misc
  46
  47 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MISC_USEANONYMOUSNAMESPACECHECK_H