vendor/clang/clang-r114020

1 files changed, 124 insertions, 0 deletions

diff --git a/tools/libclang/CIndexCXX.cpp b/tools/libclang/CIndexCXX.cpp
new file mode 100644
index 000000000000..3ade5195d8f8
--- /dev/null
+++ b/tools/libclang/CIndexCXX.cpp
@@ -0,0 +1,124 @@
+//===- CIndexCXX.cpp - Clang-C Source Indexing Library --------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the libclang support for C++ cursors.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CIndexer.h"
+#include "CXCursor.h"
+#include "CXType.h"
+#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclTemplate.h"
+
+using namespace clang;
+using namespace clang::cxstring;
+using namespace clang::cxcursor;
+
+extern "C" {
+
+unsigned clang_isVirtualBase(CXCursor C) {
+  if (C.kind != CXCursor_CXXBaseSpecifier)
+    return 0;
+  
+  CXXBaseSpecifier *B = getCursorCXXBaseSpecifier(C);
+  return B->isVirtual();
+}
+
+enum CX_CXXAccessSpecifier clang_getCXXAccessSpecifier(CXCursor C) {
+  if (C.kind != CXCursor_CXXBaseSpecifier)
+    return CX_CXXInvalidAccessSpecifier;
+  
+  CXXBaseSpecifier *B = getCursorCXXBaseSpecifier(C);
+  switch (B->getAccessSpecifier()) {
+    case AS_public: return CX_CXXPublic;
+    case AS_protected: return CX_CXXProtected;
+    case AS_private: return CX_CXXPrivate;
+    case AS_none: return CX_CXXInvalidAccessSpecifier;
+  }
+  
+  // FIXME: Clang currently thinks this is reachable.
+  return CX_CXXInvalidAccessSpecifier;
+}
+
+enum CXCursorKind clang_getTemplateCursorKind(CXCursor C) {
+  using namespace clang::cxcursor;
+  
+  switch (C.kind) {
+  case CXCursor_ClassTemplate: 
+  case CXCursor_FunctionTemplate:
+    if (TemplateDecl *Template
+                           = dyn_cast_or_null<TemplateDecl>(getCursorDecl(C)))
+      return MakeCXCursor(Template->getTemplatedDecl(), 
+                          getCursorASTUnit(C)).kind;
+    break;
+      
+  case CXCursor_ClassTemplatePartialSpecialization:
+    if (ClassTemplateSpecializationDecl *PartialSpec
+          = dyn_cast_or_null<ClassTemplatePartialSpecializationDecl>(
+                                                            getCursorDecl(C))) {
+      switch (PartialSpec->getTagKind()) {
+      case TTK_Class: return CXCursor_ClassDecl;
+      case TTK_Struct: return CXCursor_StructDecl;
+      case TTK_Union: return CXCursor_UnionDecl;
+      case TTK_Enum: return CXCursor_NoDeclFound;
+      }
+    }
+    break;
+      
+  default:
+    break;
+  }
+  
+  return CXCursor_NoDeclFound;
+}
+
+CXCursor clang_getSpecializedCursorTemplate(CXCursor C) {
+  if (!clang_isDeclaration(C.kind))
+    return clang_getNullCursor();
+    
+  Decl *D = getCursorDecl(C);
+  if (!D)
+    return clang_getNullCursor();
+  
+  Decl *Template = 0;
+  if (CXXRecordDecl *CXXRecord = dyn_cast<CXXRecordDecl>(D)) {
+    if (ClassTemplatePartialSpecializationDecl *PartialSpec
+          = dyn_cast<ClassTemplatePartialSpecializationDecl>(CXXRecord))
+      Template = PartialSpec->getSpecializedTemplate();
+    else if (ClassTemplateSpecializationDecl *ClassSpec 
+               = dyn_cast<ClassTemplateSpecializationDecl>(CXXRecord)) {
+      llvm::PointerUnion<ClassTemplateDecl *,
+                         ClassTemplatePartialSpecializationDecl *> Result
+        = ClassSpec->getSpecializedTemplateOrPartial();
+      if (Result.is<ClassTemplateDecl *>())
+        Template = Result.get<ClassTemplateDecl *>();
+      else
+        Template = Result.get<ClassTemplatePartialSpecializationDecl *>();
+      
+    } else 
+      Template = CXXRecord->getInstantiatedFromMemberClass();
+  } else if (FunctionDecl *Function = dyn_cast<FunctionDecl>(D)) {
+    Template = Function->getPrimaryTemplate();
+    if (!Template)
+      Template = Function->getInstantiatedFromMemberFunction();
+  } else if (VarDecl *Var = dyn_cast<VarDecl>(D)) {
+    if (Var->isStaticDataMember())
+      Template = Var->getInstantiatedFromStaticDataMember();
+  } else if (RedeclarableTemplateDecl *Tmpl
+                                        = dyn_cast<RedeclarableTemplateDecl>(D))
+    Template = Tmpl->getInstantiatedFromMemberTemplate();
+  
+  if (!Template)
+    return clang_getNullCursor();
+  
+  return MakeCXCursor(Template, getCursorASTUnit(C));
+}
+  
+} // end extern "C"