Add a new libclang function clang_getTemplateCursorKind(), which

determines the kind of declaration that would be generated if the
given template were instantiated. This allows a client to distinguish
among class/struct/union templates and function/member function/static
member function templates.

Also, teach clang_CXXMethod_isStatic() about function templates.

llvm-svn: 112655

4 files changed, 43 insertions, 2 deletions

diff --git a/clang/tools/libclang/CIndex.cpp b/clang/tools/libclang/CIndex.cpp
index 1515ed3c2c6..2a7e6e9b065 100644
--- a/clang/tools/libclang/CIndex.cpp
+++ b/clang/tools/libclang/CIndex.cpp
@@ -3322,8 +3322,14 @@ extern "C" {
 unsigned clang_CXXMethod_isStatic(CXCursor C) {
   if (!clang_isDeclaration(C.kind))
     return 0;
-  CXXMethodDecl *D = dyn_cast<CXXMethodDecl>(cxcursor::getCursorDecl(C));
-  return (D && D->isStatic()) ? 1 : 0;
+  
+  CXXMethodDecl *Method = 0;
+  Decl *D = cxcursor::getCursorDecl(C);
+  if (FunctionTemplateDecl *FunTmpl = dyn_cast_or_null<FunctionTemplateDecl>(D))
+    Method = dyn_cast<CXXMethodDecl>(FunTmpl->getTemplatedDecl());
+  else
+    Method = dyn_cast_or_null<CXXMethodDecl>(D);
+  return (Method && Method->isStatic()) ? 1 : 0;
 }
 
 } // end: extern "C"
diff --git a/clang/tools/libclang/CIndexCXX.cpp b/clang/tools/libclang/CIndexCXX.cpp
index a168f160451..ee83f98722f 100644
--- a/clang/tools/libclang/CIndexCXX.cpp
+++ b/clang/tools/libclang/CIndexCXX.cpp
@@ -15,6 +15,7 @@
 #include "CXCursor.h"
 #include "CXType.h"
 #include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclTemplate.h"
 
 using namespace clang;
 using namespace clang::cxstring;
@@ -45,4 +46,36 @@ enum CX_CXXAccessSpecifier clang_getCXXAccessSpecifier(CXCursor C) {
   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;
+}
+
 } // end extern "C"
diff --git a/clang/tools/libclang/libclang.darwin.exports b/clang/tools/libclang/libclang.darwin.exports
index 0d01dd9b288..289026510f7 100644
--- a/clang/tools/libclang/libclang.darwin.exports
+++ b/clang/tools/libclang/libclang.darwin.exports
@@ -78,6 +78,7 @@ _clang_getRange
 _clang_getRangeEnd
 _clang_getRangeStart
 _clang_getResultType
+_clang_getTemplateCursorKind
 _clang_getTokenExtent
 _clang_getTokenKind
 _clang_getTokenLocation
diff --git a/clang/tools/libclang/libclang.exports b/clang/tools/libclang/libclang.exports
index 60d335299ec..254ba98a73b 100644
--- a/clang/tools/libclang/libclang.exports
+++ b/clang/tools/libclang/libclang.exports
@@ -78,6 +78,7 @@ clang_getRange
 clang_getRangeEnd
 clang_getRangeStart
 clang_getResultType
+clang_getTemplateCursorKind
 clang_getTokenExtent
 clang_getTokenKind
 clang_getTokenLocation