[clang-tidy] Rename cert-dcl58-cpp to bugprone-std-namespace-modification

clang-tools-extra/clang-tidy/bugprone/BugproneTidyModule.cpp

@@ -73,6 +73,7 @@
 #include "SizeofExpressionCheck.h"
 #include "SpuriouslyWakeUpFunctionsCheck.h"
 #include "StandaloneEmptyCheck.h"
+#include "StdNamespaceModificationCheck.h"
 #include "StringConstructorCheck.h"
 #include "StringIntegerAssignmentCheck.h"
 #include "StringLiteralWithEmbeddedNulCheck.h"
@@ -237,6 +238,8 @@ class BugproneModule : public ClangTidyModule {
         "bugprone-spuriously-wake-up-functions");
     CheckFactories.registerCheck<StandaloneEmptyCheck>(
         "bugprone-standalone-empty");
+    CheckFactories.registerCheck<StdNamespaceModificationCheck>(
+        "bugprone-std-namespace-modification");
     CheckFactories.registerCheck<StringConstructorCheck>(
         "bugprone-string-constructor");
     CheckFactories.registerCheck<StringIntegerAssignmentCheck>(

clang-tools-extra/clang-tidy/bugprone/CMakeLists.txt

@@ -75,6 +75,7 @@ add_clang_library(clangTidyBugproneModule STATIC
   SmartPtrArrayMismatchCheck.cpp
   SpuriouslyWakeUpFunctionsCheck.cpp
   StandaloneEmptyCheck.cpp
+  StdNamespaceModificationCheck.cpp
   StringConstructorCheck.cpp
   StringIntegerAssignmentCheck.cpp
   StringLiteralWithEmbeddedNulCheck.cpp

clang-tools-extra/clang-tidy/cert/DontModifyStdNamespaceCheck.cpp → clang-tools-extra/clang-tidy/bugprone/StdNamespaceModificationCheck.cpp

@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "DontModifyStdNamespaceCheck.h"
+#include "StdNamespaceModificationCheck.h"
 #include "clang/ASTMatchers/ASTMatchFinder.h"
 #include "clang/ASTMatchers/ASTMatchersInternal.h"
 
@@ -36,9 +36,9 @@ AST_POLYMORPHIC_MATCHER_P(
 
 } // namespace
 
-namespace clang::tidy::cert {
+namespace clang::tidy::bugprone {
 
-void DontModifyStdNamespaceCheck::registerMatchers(MatchFinder *Finder) {
+void StdNamespaceModificationCheck::registerMatchers(MatchFinder *Finder) {
   auto HasStdParent =
       hasDeclContext(namespaceDecl(hasAnyName("std", "posix"),
                                    unless(hasParent(namespaceDecl())))
@@ -96,7 +96,7 @@ void DontModifyStdNamespaceCheck::registerMatchers(MatchFinder *Finder) {
                          .bind("decl"),
                      this);
 }
-} // namespace clang::tidy::cert
+} // namespace clang::tidy::bugprone
 
 static const NamespaceDecl *getTopLevelLexicalNamespaceDecl(const Decl *D) {
   const NamespaceDecl *LastNS = nullptr;
@@ -108,7 +108,7 @@ static const NamespaceDecl *getTopLevelLexicalNamespaceDecl(const Decl *D) {
   return LastNS;
 }
 
-void clang::tidy::cert::DontModifyStdNamespaceCheck::check(
+void clang::tidy::bugprone::StdNamespaceModificationCheck::check(
     const MatchFinder::MatchResult &Result) {
   const auto *D = Result.Nodes.getNodeAs<Decl>("decl");
   const auto *NS = Result.Nodes.getNodeAs<NamespaceDecl>("nmspc");

clang-tools-extra/clang-tidy/cert/DontModifyStdNamespaceCheck.h → clang-tools-extra/clang-tidy/bugprone/StdNamespaceModificationCheck.h

@@ -6,21 +6,21 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CERT_DONT_MODIFY_STD_NAMESPACE_H
-#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CERT_DONT_MODIFY_STD_NAMESPACE_H
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_STDNAMESPACEMODIFICATIONCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_STDNAMESPACEMODIFICATIONCHECK_H
 
 #include "../ClangTidyCheck.h"
 
-namespace clang::tidy::cert {
+namespace clang::tidy::bugprone {
 
 /// Modification of the std or posix namespace can result in undefined behavior.
 /// This check warns for such modifications.
 ///
 /// For the user-facing documentation see:
-/// https://clang.llvm.org/extra/clang-tidy/checks/cert/dcl58-cpp.html
-class DontModifyStdNamespaceCheck : public ClangTidyCheck {
+/// https://clang.llvm.org/extra/clang-tidy/checks/bugprone/std-namespace-modification.html
+class StdNamespaceModificationCheck : public ClangTidyCheck {
 public:
-  DontModifyStdNamespaceCheck(StringRef Name, ClangTidyContext *Context)
+  StdNamespaceModificationCheck(StringRef Name, ClangTidyContext *Context)
       : ClangTidyCheck(Name, Context) {}
   bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
     return LangOpts.CPlusPlus;
@@ -29,6 +29,6 @@ class DontModifyStdNamespaceCheck : public ClangTidyCheck {
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };
 
-} // namespace clang::tidy::cert
+} // namespace clang::tidy::bugprone
 
-#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CERT_DONT_MODIFY_STD_NAMESPACE_H
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_STDNAMESPACEMODIFICATIONCHECK_H

clang-tools-extra/clang-tidy/cert/CERTTidyModule.cpp

@@ -19,6 +19,7 @@
 #include "../bugprone/SignedCharMisuseCheck.h"
 #include "../bugprone/SizeofExpressionCheck.h"
 #include "../bugprone/SpuriouslyWakeUpFunctionsCheck.h"
+#include "../bugprone/StdNamespaceModificationCheck.h"
 #include "../bugprone/SuspiciousMemoryComparisonCheck.h"
 #include "../bugprone/ThrowingStaticInitializationCheck.h"
 #include "../bugprone/UncheckedStringToNumberConversionCheck.h"
@@ -36,7 +37,6 @@
 #include "../performance/MoveConstructorInitCheck.h"
 #include "../readability/EnumInitialValueCheck.h"
 #include "../readability/UppercaseLiteralSuffixCheck.h"
-#include "DontModifyStdNamespaceCheck.h"
 #include "FloatLoopCounter.h"
 #include "LimitedRandomnessCheck.h"
 #include "MutatingCopyCheck.h"
@@ -251,7 +251,8 @@ class CERTModule : public ClangTidyModule {
         "cert-dcl51-cpp");
     CheckFactories.registerCheck<misc::NewDeleteOverloadsCheck>(
         "cert-dcl54-cpp");
-    CheckFactories.registerCheck<DontModifyStdNamespaceCheck>("cert-dcl58-cpp");
+    CheckFactories.registerCheck<bugprone::StdNamespaceModificationCheck>(
+        "cert-dcl58-cpp");
     CheckFactories.registerCheck<google::build::UnnamedNamespaceInHeaderCheck>(
         "cert-dcl59-cpp");
     // ERR

clang-tools-extra/clang-tidy/cert/CMakeLists.txt

@@ -5,7 +5,6 @@ set(LLVM_LINK_COMPONENTS
 
 add_clang_library(clangTidyCERTModule STATIC
   CERTTidyModule.cpp
-  DontModifyStdNamespaceCheck.cpp
   FloatLoopCounter.cpp
   LimitedRandomnessCheck.cpp
   MutatingCopyCheck.cpp

clang-tools-extra/docs/ReleaseNotes.rst

@@ -244,6 +244,11 @@ New check aliases
   <clang-tidy/checks/modernize/avoid-variadic-functions>`
   keeping initial check as an alias to the new one.
 
+- Renamed :doc:`cert-dcl58-cpp <clang-tidy/checks/cert/dcl58-cpp>` to
+  :doc:`bugprone-std-namespace-modification
+  <clang-tidy/checks/bugprone/std-namespace-modification>`
+  keeping initial check as an alias to the new one.
+
 - Renamed :doc:`cert-env33-c <clang-tidy/checks/cert/env33-c>` to
   :doc:`bugprone-command-processor
   <clang-tidy/checks/bugprone/command-processor>`

clang-tools-extra/docs/clang-tidy/checks/bugprone/std-namespace-modification.rst

@@ -0,0 +1,63 @@
+.. title:: clang-tidy - bugprone-std-namespace-modification
+
+bugprone-std-namespace-modification
+===================================
+
+Warns on modifications of the ``std`` or ``posix`` namespaces which can
+result in undefined behavior.
+
+The ``std`` (or ``posix``) namespace is allowed to be extended with (class or
+function) template specializations that depend on an user-defined type (a type
+that is not defined in the standard system headers).
+
+The check detects the following (user provided) declarations in namespace ``std`` or ``posix``:
+
+- Anything that is not a template specialization.
+- Explicit specializations of any standard library function template or class template, if it does not have any user-defined type as template argument.
+- Explicit specializations of any member function of a standard library class template.
+- Explicit specializations of any member function template of a standard library class or class template.
+- Explicit or partial specialization of any member class template of a standard library class or class template.
+
+Examples:
+
+.. code-block:: c++
+
+  namespace std {
+    int x; // warning: modification of 'std' namespace can result in undefined behavior [bugprone-dont-modify-std-namespace]
+  }
+
+  namespace posix::a { // warning: modification of 'posix' namespace can result in undefined behavior
+  }
+
+  template <>
+  struct ::std::hash<long> { // warning: modification of 'std' namespace can result in undefined behavior
+    unsigned long operator()(const long &K) const {
+      return K;
+    }
+  };
+
+  struct MyData { long data; };
+
+  template <>
+  struct ::std::hash<MyData> { // no warning: specialization with user-defined type
+    unsigned long operator()(const MyData &K) const {
+      return K.data;
+    }
+  };
+
+  namespace std {
+    template <>
+    void swap<bool>(bool &a, bool &b); // warning: modification of 'std' namespace can result in undefined behavior
+
+    template <>
+    bool less<void>::operator()<MyData &&, MyData &&>(MyData &&, MyData &&) const { // warning: modification of 'std' namespace can result in undefined behavior
+      return true;
+    }
+  }
+
+References
+----------
+
+This check corresponds to the CERT C++ Coding Standard rule
+`DCL58-CPP. Do not modify the standard namespaces
+<https://www.securecoding.cert.org/confluence/display/cplusplus/DCL58-CPP.+Do+not+modify+the+standard+namespaces>`_.

clang-tools-extra/docs/clang-tidy/checks/cert/dcl58-cpp.rst

@@ -3,57 +3,9 @@
 cert-dcl58-cpp
 ==============
 
-Modification of the ``std`` or ``posix`` namespace can result in undefined
-behavior.
-This check warns for such modifications.
-The ``std`` (or ``posix``) namespace is allowed to be extended with (class or
-function) template specializations that depend on an user-defined type (a type
-that is not defined in the standard system headers).
-
-The check detects the following (user provided) declarations in namespace ``std`` or ``posix``:
-
-- Anything that is not a template specialization.
-- Explicit specializations of any standard library function template or class template, if it does not have any user-defined type as template argument.
-- Explicit specializations of any member function of a standard library class template.
-- Explicit specializations of any member function template of a standard library class or class template.
-- Explicit or partial specialization of any member class template of a standard library class or class template.
-
-Examples:
-
-.. code-block:: c++
-
-  namespace std {
-    int x; // warning: modification of 'std' namespace can result in undefined behavior [cert-dcl58-cpp]
-  }
-
-  namespace posix::a { // warning: modification of 'posix' namespace can result in undefined behavior
-  }
-
-  template <>
-  struct ::std::hash<long> { // warning: modification of 'std' namespace can result in undefined behavior
-    unsigned long operator()(const long &K) const {
-      return K;
-    }
-  };
-
-  struct MyData { long data; };
-
-  template <>
-  struct ::std::hash<MyData> { // no warning: specialization with user-defined type
-    unsigned long operator()(const MyData &K) const {
-      return K.data;
-    }
-  };
-
-  namespace std {
-    template <>
-    void swap<bool>(bool &a, bool &b); // warning: modification of 'std' namespace can result in undefined behavior
-
-    template <>
-    bool less<void>::operator()<MyData &&, MyData &&>(MyData &&, MyData &&) const { // warning: modification of 'std' namespace can result in undefined behavior
-      return true;
-    }
-  }
+The `cert-dcl58-cpp` is an aliaes, please see
+`bugprone-std-namespace-modification <../bugprone/std-namespace-modification.html>`_
+for more information.
 
 This check corresponds to the CERT C++ Coding Standard rule
 `DCL58-CPP. Do not modify the standard namespaces

clang-tools-extra/docs/clang-tidy/checks/list.rst

@@ -141,6 +141,7 @@ Clang-Tidy Checks
    :doc:`bugprone-sizeof-expression <bugprone/sizeof-expression>`,
    :doc:`bugprone-spuriously-wake-up-functions <bugprone/spuriously-wake-up-functions>`,
    :doc:`bugprone-standalone-empty <bugprone/standalone-empty>`, "Yes"
+   :doc:`bugprone-std-namespace-modification <bugprone/std-namespace-modification>`,
    :doc:`bugprone-string-constructor <bugprone/string-constructor>`, "Yes"
    :doc:`bugprone-string-integer-assignment <bugprone/string-integer-assignment>`, "Yes"
    :doc:`bugprone-string-literal-with-embedded-nul <bugprone/string-literal-with-embedded-nul>`,
@@ -175,7 +176,6 @@ Clang-Tidy Checks
    :doc:`bugprone-unused-return-value <bugprone/unused-return-value>`,
    :doc:`bugprone-use-after-move <bugprone/use-after-move>`,
    :doc:`bugprone-virtual-near-miss <bugprone/virtual-near-miss>`, "Yes"
-   :doc:`cert-dcl58-cpp <cert/dcl58-cpp>`,
    :doc:`cert-err33-c <cert/err33-c>`,
    :doc:`cert-err60-cpp <cert/err60-cpp>`,
    :doc:`cert-flp30-c <cert/flp30-c>`,
@@ -441,6 +441,7 @@ Check aliases
    :doc:`cert-dcl50-cpp <cert/dcl50-cpp>`, :doc:`modernize-avoid-variadic-functions <modernize/avoid-variadic-functions>`,
    :doc:`cert-dcl51-cpp <cert/dcl51-cpp>`, :doc:`bugprone-reserved-identifier <bugprone/reserved-identifier>`, "Yes"
    :doc:`cert-dcl54-cpp <cert/dcl54-cpp>`, :doc:`misc-new-delete-overloads <misc/new-delete-overloads>`,
+   :doc:`cert-dcl58-cpp <cert/dcl58-cpp>`, :doc:`bugprone-std-namespace-modification <bugprone/std-namespace-modification>`,
    :doc:`cert-dcl59-cpp <cert/dcl59-cpp>`, :doc:`google-build-namespaces <google/build-namespaces>`,
    :doc:`cert-env33-c <cert/env33-c>`, :doc:`bugprone-command-processor <bugprone/command-processor>`,
    :doc:`cert-err09-cpp <cert/err09-cpp>`, :doc:`misc-throw-by-value-catch-by-reference <misc/throw-by-value-catch-by-reference>`,

clang-tools-extra/test/clang-tidy/checkers/Inputs/Headers/system-header-simulation.h

@@ -59,7 +59,7 @@ struct X {};
 } // namespace std
 
 // Template specializations that are in a system-header file.
-// The purpose is to test cert-dcl58-cpp (no warnings here).
+// The purpose is to test bugprone-std-namespace-modification (no warnings here).
 namespace std {
 template <>
 void swap<short>(short &, short &){};

clang-tools-extra/test/clang-tidy/checkers/cert/dcl58-cpp.cpp → clang-tools-extra/test/clang-tidy/checkers/bugprone/std-namespace-modification.cpp

@@ -1,4 +1,4 @@
-// RUN: %check_clang_tidy -std=c++17-or-later %s cert-dcl58-cpp %t -- -- -I %clang_tidy_headers
+// RUN: %check_clang_tidy -std=c++17-or-later %s bugprone-std-namespace-modification %t -- -- -I %clang_tidy_headers
 
 #include "system-header-simulation.h"
 
@@ -15,7 +15,7 @@ namespace A {
 }
 
 namespace posix {
-// CHECK-MESSAGES: :[[@LINE+2]]:11: warning: modification of 'posix' namespace can result in undefined behavior [cert-dcl58-cpp]
+// CHECK-MESSAGES: :[[@LINE+2]]:11: warning: modification of 'posix' namespace can result in undefined behavior [bugprone-std-namespace-modification]
 // CHECK-MESSAGES: :[[@LINE-2]]:11: note: 'posix' namespace opened here
 namespace foo {
 int foobar;