forked from OSchip/llvm-project
57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
//===--- UsingNamespaceDirectiveCheck.h - clang-tidy ------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_USINGNAMESPACEDIRECTIVECHECK_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_USINGNAMESPACEDIRECTIVECHECK_H
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#include "../ClangTidyCheck.h"
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namespace clang {
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namespace tidy {
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namespace google {
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namespace build {
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/// Finds using namespace directives.
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///
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/// https://google.github.io/styleguide/cppguide.html#Namespaces
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///
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/// The check implements the following rule of the Google C++ Style Guide:
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///
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/// You may not use a using-directive to make all names from a namespace
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/// available.
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///
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/// \code
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/// // Forbidden -- This pollutes the namespace.
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/// using namespace foo;
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/// \endcode
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///
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/// Corresponding cpplint.py check name: `build/namespaces`.
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///
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/// For the user-facing documentation see:
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/// https://clang.llvm.org/extra/clang-tidy/checks/google-build-using-namespace.html
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class UsingNamespaceDirectiveCheck : public ClangTidyCheck {
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public:
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UsingNamespaceDirectiveCheck(StringRef Name, ClangTidyContext *Context)
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: ClangTidyCheck(Name, Context) {}
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bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
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return LangOpts.CPlusPlus;
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}
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void registerMatchers(ast_matchers::MatchFinder *Finder) override;
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void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
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private:
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static bool isStdLiteralsNamespace(const NamespaceDecl *NS);
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};
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} // namespace build
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} // namespace google
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} // namespace tidy
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} // namespace clang
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#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_USINGNAMESPACEDIRECTIVECHECK_H
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