- Split into two checkers.
- Now depends on D4517.
http://reviews.llvm.org/D4523
Files:
clang-tidy/google/CMakeLists.txt
clang-tidy/google/GoogleTidyModule.cpp
clang-tidy/google/UnnamedNamespaceInHeaderCheck.cpp
clang-tidy/google/UnnamedNamespaceInHeaderCheck.h
clang-tidy/google/UsingNamespaceDirectiveCheck.cpp
clang-tidy/google/UsingNamespaceDirectiveCheck.h
test/clang-tidy/Inputs/google-namespaces.h
test/clang-tidy/google-namespaces.cpp
Index: clang-tidy/google/CMakeLists.txt
===================================================================
--- clang-tidy/google/CMakeLists.txt
+++ clang-tidy/google/CMakeLists.txt
@@ -8,6 +8,8 @@
NamedParameterCheck.cpp
OverloadedUnaryAndCheck.cpp
StringReferenceMemberCheck.cpp
+ UnnamedNamespaceInHeaderCheck.cpp
+ UsingNamespaceDirectiveCheck.cpp
LINK_LIBS
clangAST
Index: clang-tidy/google/GoogleTidyModule.cpp
===================================================================
--- clang-tidy/google/GoogleTidyModule.cpp
+++ clang-tidy/google/GoogleTidyModule.cpp
@@ -16,6 +16,8 @@
#include "NamedParameterCheck.h"
#include "OverloadedUnaryAndCheck.h"
#include "StringReferenceMemberCheck.h"
+#include "UnnamedNamespaceInHeaderCheck.h"
+#include "UsingNamespaceDirectiveCheck.h"
using namespace clang::ast_matchers;
@@ -29,6 +31,12 @@
"google-build-explicit-make-pair",
new ClangTidyCheckFactory<build::ExplicitMakePairCheck>());
CheckFactories.addCheckFactory(
+ "google-build-namespaces",
+ new ClangTidyCheckFactory<build::UnnamedNamespaceInHeaderCheck>());
+ CheckFactories.addCheckFactory(
+ "google-build-using-namespace",
+ new ClangTidyCheckFactory<build::UsingNamespaceDirectiveCheck>());
+ CheckFactories.addCheckFactory(
"google-explicit-constructor",
new ClangTidyCheckFactory<ExplicitConstructorCheck>());
CheckFactories.addCheckFactory(
Index: clang-tidy/google/UnnamedNamespaceInHeaderCheck.cpp
===================================================================
--- /dev/null
+++ clang-tidy/google/UnnamedNamespaceInHeaderCheck.cpp
@@ -0,0 +1,49 @@
+//===--- UnnamedNamespaceInHeaderCheck.cpp - clang-tidy ---------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "UnnamedNamespaceInHeaderCheck.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
+#include "clang/AST/ASTContext.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang {
+namespace ast_matchers {
+AST_MATCHER(NamespaceDecl, isAnonymousNamespace) {
+ return Node.isAnonymousNamespace();
+}
+} // namespace ast_matchers
+
+namespace tidy {
+namespace build {
+
+void UnnamedNamespaceInHeaderCheck::registerMatchers(
+ ast_matchers::MatchFinder *Finder) {
+ Finder->addMatcher(
+ namespaceDecl(isAnonymousNamespace()).bind("anonymousNamespace"), this);
+}
+
+void
+UnnamedNamespaceInHeaderCheck::check(const MatchFinder::MatchResult &Result) {
+ SourceManager *SM = Result.SourceManager;
+ const auto *N = Result.Nodes.getNodeAs<NamespaceDecl>("anonymousNamespace");
+ SourceLocation Loc = N->getLocStart();
+ if (Loc.isValid()) {
+ // Look if we're inside a header, check for common suffixes only.
+ StringRef FileName = SM->getPresumedLoc(Loc).getFilename();
+ if (FileName.endswith(".h") || FileName.endswith(".hh") ||
+ FileName.endswith(".hpp") || FileName.endswith(".hxx"))
+ diag(Loc, "do not use unnamed namespaces in header files.");
+ }
+}
+
+} // namespace build
+} // namespace tidy
+} // namespace clang
Index: clang-tidy/google/UnnamedNamespaceInHeaderCheck.h
===================================================================
--- /dev/null
+++ clang-tidy/google/UnnamedNamespaceInHeaderCheck.h
@@ -0,0 +1,32 @@
+//===--- UnnamedNamespaceInHeaderCheck.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_UNNAMED_NAMESPACE_IN_HEADER_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_UNNAMED_NAMESPACE_IN_HEADER_H
+
+#include "../ClangTidy.h"
+
+namespace clang {
+namespace tidy {
+namespace build {
+
+/// \brief Finds anonymous namespaces in headers.
+///
+/// Corresponding cpplint.py check name: 'build/namespaces'.
+class UnnamedNamespaceInHeaderCheck : public ClangTidyCheck {
+public:
+ void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+ void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+};
+
+} // namespace build
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_UNNAMED_NAMESPACE_IN_HEADER_H
Index: clang-tidy/google/UsingNamespaceDirectiveCheck.cpp
===================================================================
--- /dev/null
+++ clang-tidy/google/UsingNamespaceDirectiveCheck.cpp
@@ -0,0 +1,37 @@
+//===--- UsingNamespaceDirectiveCheck.cpp - clang-tidy ----------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "UsingNamespaceDirectiveCheck.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/ASTMatchers/ASTMatchers.h"
+#include "clang/AST/ASTContext.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang {
+namespace tidy {
+namespace build {
+
+void UsingNamespaceDirectiveCheck::registerMatchers(
+ ast_matchers::MatchFinder *Finder) {
+ Finder->addMatcher(usingDirectiveDecl().bind("usingNamespace"), this);
+}
+
+void
+UsingNamespaceDirectiveCheck::check(const MatchFinder::MatchResult &Result) {
+ const auto *U = Result.Nodes.getNodeAs<UsingDirectiveDecl>("usingNamespace");
+ SourceLocation Loc = U->getLocStart();
+ if (!U->isImplicit() && Loc.isValid())
+ diag(Loc, "do not use namespace using-directives. Use using-declarations "
+ "instead.");
+}
+
+} // namespace build
+} // namespace tidy
+} // namespace clang
Index: clang-tidy/google/UsingNamespaceDirectiveCheck.h
===================================================================
--- /dev/null
+++ clang-tidy/google/UsingNamespaceDirectiveCheck.h
@@ -0,0 +1,32 @@
+//===--- UsingNamespaceDirectiveCheck.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_USING_NAMESPACE_CHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_USING_NAMESPACE_CHECK_H
+
+#include "../ClangTidy.h"
+
+namespace clang {
+namespace tidy {
+namespace build {
+
+/// \brief Finds using namespace directives.
+///
+/// Corresponding cpplint.py check name: 'build/namespaces'.
+class UsingNamespaceDirectiveCheck : public ClangTidyCheck {
+public:
+ void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+ void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+};
+
+} // namespace build
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_GOOGLE_USING_NAMESPACE_CHECK_H
Index: test/clang-tidy/Inputs/google-namespaces.h
===================================================================
--- /dev/null
+++ test/clang-tidy/Inputs/google-namespaces.h
@@ -0,0 +1,7 @@
+namespace {
+int x;
+}
+
+namespace spaaaace {
+class core;
+}
Index: test/clang-tidy/google-namespaces.cpp
===================================================================
--- /dev/null
+++ test/clang-tidy/google-namespaces.cpp
@@ -0,0 +1,8 @@
+// RUN: clang-tidy %s -checks='-*,google-build-namespaces,google-build-using-namespace' -header-filter='.*' -- | FileCheck %s -implicit-check-not="{{warning|error}}:"
+#include "Inputs/google-namespaces.h"
+// CHECK: warning: do not use unnamed namespaces in header files.
+
+using namespace spaaaace;
+// CHECK: :[[@LINE-1]]:1: warning: do not use namespace using-directives. Use using-declarations instead.
+
+using spaaaace::core; // no-warning
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