Merge branch 'main' into feat/attr-scope

Author: a-tarasyuk

.github/workflows/libclang-python-tests.yml

@@ -10,15 +10,15 @@ on:
       - 'main'
     paths:
       - 'clang/bindings/python/**'
-      - 'clang/test/bindings/python/**'
       - 'clang/tools/libclang/**'
+      - 'clang/CMakeList.txt'
       - '.github/workflows/libclang-python-tests.yml'
       - '.github/workflows/llvm-project-tests.yml'
   pull_request:
     paths:
       - 'clang/bindings/python/**'
-      - 'clang/test/bindings/python/**'
       - 'clang/tools/libclang/**'
+      - 'clang/CMakeList.txt'
       - '.github/workflows/libclang-python-tests.yml'
       - '.github/workflows/llvm-project-tests.yml'
 

clang-tools-extra/clang-doc/BitcodeReader.cpp

@@ -569,6 +569,17 @@ static llvm::Error addReference(T I, Reference &&R, FieldId F) {
                                  "invalid type cannot contain Reference");
 }
 
+template <> llvm::Error addReference(VarInfo *I, Reference &&R, FieldId F) {
+  switch (F) {
+  case FieldId::F_namespace:
+    I->Namespace.emplace_back(std::move(R));
+    return llvm::Error::success();
+  default:
+    return llvm::createStringError(llvm::inconvertibleErrorCode(),
+                                   "VarInfo cannot contain this Reference");
+  }
+}
+
 template <> llvm::Error addReference(TypeInfo *I, Reference &&R, FieldId F) {
   switch (F) {
   case FieldId::F_type:

clang-tools-extra/clang-tidy/ClangTidyDiagnosticConsumer.cpp

@@ -358,8 +358,27 @@ getFixIt(const tooling::Diagnostic &Diagnostic, bool AnyFix) {
 
 } // namespace clang::tidy
 
+void ClangTidyDiagnosticConsumer::BeginSourceFile(const LangOptions &LangOpts,
+                                                  const Preprocessor *PP) {
+  DiagnosticConsumer::BeginSourceFile(LangOpts, PP);
+
+  assert(!InSourceFile);
+  InSourceFile = true;
+}
+
+void ClangTidyDiagnosticConsumer::EndSourceFile() {
+  assert(InSourceFile);
+  InSourceFile = false;
+
+  DiagnosticConsumer::EndSourceFile();
+}
+
 void ClangTidyDiagnosticConsumer::HandleDiagnostic(
     DiagnosticsEngine::Level DiagLevel, const Diagnostic &Info) {
+  // A diagnostic should not be reported outside of a
+  // BeginSourceFile()/EndSourceFile() pair if it has a source location.
+  assert(InSourceFile || Info.getLocation().isInvalid());
+
   if (LastErrorWasIgnored && DiagLevel == DiagnosticsEngine::Note)
     return;
 

clang-tools-extra/clang-tidy/ClangTidyDiagnosticConsumer.h

@@ -292,6 +292,11 @@ class ClangTidyDiagnosticConsumer : public DiagnosticConsumer {
   void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
                         const Diagnostic &Info) override;
 
+  void BeginSourceFile(const LangOptions &LangOpts,
+                       const Preprocessor *PP = nullptr) override;
+
+  void EndSourceFile() override;
+
   // Retrieve the diagnostics that were captured.
   std::vector<ClangTidyError> take();
 
@@ -326,6 +331,11 @@ class ClangTidyDiagnosticConsumer : public DiagnosticConsumer {
   bool LastErrorRelatesToUserCode = false;
   bool LastErrorPassesLineFilter = false;
   bool LastErrorWasIgnored = false;
+  /// Tracks whether we're currently inside a
+  /// `BeginSourceFile()/EndSourceFile()` pair. Outside of a source file, we
+  /// should only receive diagnostics that have to source location, such as
+  /// command-line warnings.
+  bool InSourceFile = false;
 };
 
 } // end namespace tidy

clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsPointerArithmeticCheck.cpp

@@ -15,25 +15,26 @@ using namespace clang::ast_matchers;
 namespace clang::tidy::cppcoreguidelines {
 
 void ProBoundsPointerArithmeticCheck::registerMatchers(MatchFinder *Finder) {
-  if (!getLangOpts().CPlusPlus)
-    return;
-
   const auto AllPointerTypes =
-      anyOf(hasType(pointerType()),
+      anyOf(hasType(hasUnqualifiedDesugaredType(pointerType())),
             hasType(autoType(
                 hasDeducedType(hasUnqualifiedDesugaredType(pointerType())))),
             hasType(decltypeType(hasUnderlyingType(pointerType()))));
 
-  // Flag all operators +, -, +=, -=, ++, -- that result in a pointer
+  // Flag all operators +, -, +=, -= that result in a pointer
   Finder->addMatcher(
       binaryOperator(
           hasAnyOperatorName("+", "-", "+=", "-="), AllPointerTypes,
           unless(hasLHS(ignoringImpCasts(declRefExpr(to(isImplicit()))))))
           .bind("expr"),
       this);
 
+  // Flag all operators ++, -- that result in a pointer
   Finder->addMatcher(
-      unaryOperator(hasAnyOperatorName("++", "--"), hasType(pointerType()))
+      unaryOperator(hasAnyOperatorName("++", "--"),
+                    hasType(hasUnqualifiedDesugaredType(pointerType())),
+                    unless(hasUnaryOperand(
+                        ignoringImpCasts(declRefExpr(to(isImplicit()))))))
           .bind("expr"),
       this);
 

clang-tools-extra/clang-tidy/cppcoreguidelines/ProBoundsPointerArithmeticCheck.h

@@ -23,6 +23,9 @@ class ProBoundsPointerArithmeticCheck : public ClangTidyCheck {
 public:
   ProBoundsPointerArithmeticCheck(StringRef Name, ClangTidyContext *Context)
       : ClangTidyCheck(Name, Context) {}
+  bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
+    return LangOpts.CPlusPlus;
+  }
   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
 };

clang-tools-extra/docs/ReleaseNotes.rst

@@ -0,0 +1,36 @@
+// RUN: rm -rf %t && mkdir -p %t
+// RUN: clang-doc --output=%t --format=json --executor=standalone %s
+// RUN: FileCheck %s < %t/nested/index.json --check-prefix=NESTED
+// RUN: FileCheck %s < %t/nested/inner/index.json --check-prefix=INNER
+
+namespace nested {
+  int Global;
+  namespace inner {
+    int InnerGlobal;
+  } // namespace inner
+} // namespace nested
+
+// NESTED:       "Variables": [
+// NESTED-NEXT:    {
+// NESTED-NEXT:      "IsStatic": false,
+// NESTED-NEXT:      "Location": {
+// NESTED-NEXT:        "Filename": "{{.*}}nested-namespace.cpp",
+// NESTED-NEXT:        "LineNumber": 7
+// NESTED-NEXT:      },
+// NESTED-NEXT:      "Name": "Global",
+// NESTED-NEXT:      "Namespace": [
+// NESTED-NEXT:        "nested"
+// NESTED-NEXT:      ],
+
+// INNER:       "Variables": [
+// INNER-NEXT:    {
+// INNER-NEXT:      "IsStatic": false,
+// INNER-NEXT:      "Location": {
+// INNER-NEXT:        "Filename": "{{.*}}nested-namespace.cpp",
+// INNER-NEXT:        "LineNumber": 9
+// INNER-NEXT:      },
+// INNER-NEXT:      "Name": "InnerGlobal",
+// INNER-NEXT:      "Namespace": [
+// INNER-NEXT:        "inner",
+// INNER-NEXT:        "nested"
+// INNER-NEXT:      ],

clang-tools-extra/test/clang-doc/json/nested-namespace.cpp

@@ -1,11 +1,14 @@
 // RUN: %check_clang_tidy -std=c++14-or-later %s cppcoreguidelines-pro-bounds-pointer-arithmetic %t
 
 // Fix PR36489 and detect auto-deduced value correctly.
+typedef char* charPtr;
+
 char *getPtr();
 auto getPtrAuto() { return getPtr(); }
 decltype(getPtr()) getPtrDeclType();
 decltype(auto) getPtrDeclTypeAuto() { return getPtr(); }
 auto getPtrWithTrailingReturnType() -> char *;
+charPtr getCharPtr() { return getPtr(); }
 
 void auto_deduction_binary() {
   auto p1 = getPtr() + 1;
@@ -28,6 +31,10 @@ void auto_deduction_binary() {
   // CHECK-MESSAGES: :[[@LINE-1]]:31: warning: do not use pointer arithmetic
   auto *p9 = getPtrDeclTypeAuto() + 1;
   // CHECK-MESSAGES: :[[@LINE-1]]:35: warning: do not use pointer arithmetic
+  auto p10 = getCharPtr() + 1;
+  // CHECK-MESSAGES: :[[@LINE-1]]:27: warning: do not use pointer 
+  auto* p11 = getCharPtr() + 1;
+  // CHECK-MESSAGES: :[[@LINE-1]]:28: warning: do not use pointer arithmetic
 }
 
 void auto_deduction_subscript() {
@@ -50,4 +57,6 @@ void auto_deduction_subscript() {
   // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
   auto p8 = getPtrDeclTypeAuto()[9];
   // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
+  auto p9 = getCharPtr()[10];
+  // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: do not use pointer arithmetic
 }

clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/pro-bounds-pointer-arithmetic-pr36489.cpp

@@ -4,10 +4,13 @@ enum E {
   ENUM_LITERAL = 1
 };
 
+typedef int* IntPtr;
+
 int i = 4;
 int j = 1;
 int *p = 0;
 int *q = 0;
+IntPtr ip = 0;
 
 void fail() {
   q = p + 4;
@@ -50,6 +53,32 @@ void fail() {
 
   i = p[1];
   // CHECK-MESSAGES: :[[@LINE-1]]:7: warning: do not use pointer arithmetic
+
+  p = ip + 1;
+  // CHECK-MESSAGES: :[[@LINE-1]]:10: warning: do not use pointer arithmetic
+  ip++;
+  // CHECK-MESSAGES: :[[@LINE-1]]:5: warning: do not use pointer arithmetic
+  i = ip[1];
+  // CHECK-MESSAGES: :[[@LINE-1]]:7: warning: do not use pointer arithmetic
+}
+
+template <typename T>
+void template_fail() {
+  T* p;
+  T* q;
+
+  p = q + 1;
+  // CHECK-MESSAGES: :[[@LINE-1]]:9: warning: do not use pointer arithmetic
+  q = p - 1;
+  // CHECK-MESSAGES: :[[@LINE-1]]:9: warning: do not use pointer arithmetic
+  p++;
+  // CHECK-MESSAGES: :[[@LINE-1]]:4: warning: do not use pointer arithmetic
+  i = p[1];
+  // CHECK-MESSAGES: :[[@LINE-1]]:7: warning: do not use pointer arithmetic
+}
+
+void instantiate() {
+  template_fail<int>();
 }
 
 struct S {