clang-tools
15.0.0git
llvm-project
clang-tools-extra
clang-tidy
google
UsingNamespaceDirectiveCheck.h
Go to the documentation of this file.
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//===--- 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
clang::tidy::google::build::UsingNamespaceDirectiveCheck::registerMatchers
void registerMatchers(ast_matchers::MatchFinder *Finder) override
Override this to register AST matchers with Finder.
Definition:
UsingNamespaceDirectiveCheck.cpp:21
clang::tidy::ClangTidyCheck
Base class for all clang-tidy checks.
Definition:
ClangTidyCheck.h:53
clang::tidy::google::build::UsingNamespaceDirectiveCheck::isLanguageVersionSupported
bool isLanguageVersionSupported(const LangOptions &LangOpts) const override
Override this to disable registering matchers and PP callbacks if an invalid language version is bein...
Definition:
UsingNamespaceDirectiveCheck.h:41
clang::tidy::google::build::UsingNamespaceDirectiveCheck
Finds using namespace directives.
Definition:
UsingNamespaceDirectiveCheck.h:37
clang::tidy::google::build::UsingNamespaceDirectiveCheck::UsingNamespaceDirectiveCheck
UsingNamespaceDirectiveCheck(StringRef Name, ClangTidyContext *Context)
Definition:
UsingNamespaceDirectiveCheck.h:39
clang::tidy::ClangTidyContext
Every ClangTidyCheck reports errors through a DiagnosticsEngine provided by this context.
Definition:
ClangTidyDiagnosticConsumer.h:67
Name
Token Name
Definition:
MacroToEnumCheck.cpp:89
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition:
ApplyReplacements.h:27
LangOpts
const LangOptions * LangOpts
Definition:
ExtractFunction.cpp:366
clang::tidy::google::build::UsingNamespaceDirectiveCheck::check
void check(const ast_matchers::MatchFinder::MatchResult &Result) override
ClangTidyChecks that register ASTMatchers should do the actual work in here.
Definition:
UsingNamespaceDirectiveCheck.cpp:26
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