Implement basic support for indexing function templates in

libclang. This includes:
  - Cursor kind for function templates, with visitation logic
  - Cursor kinds for template parameters, with visitation logic
  - Visitation logic for template specialization types, qualified type
  locations
  - USR generation for function templates, template specialization
  types, template parameter types.

Also happens to fix PR7804, which I tripped across while testing.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112604 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 16 insertions, 1 deletions

diff --git a/include/clang-c/Index.h b/include/clang-c/Index.h
index e3d10f3fcd..cc00f1835b 100644
--- a/include/clang-c/Index.h
+++ b/include/clang-c/Index.h
@@ -982,8 +982,16 @@ enum CXCursorKind {
   CXCursor_Destructor                    = 25,
   /** \brief A C++ conversion function. */
   CXCursor_ConversionFunction            = 26,
+  /** \brief A C++ template type parameter. */
+  CXCursor_TemplateTypeParameter         = 27,
+  /** \brief A C++ non-type template parameter. */
+  CXCursor_NonTypeTemplateParameter      = 28,
+  /** \brief A C++ template template parameter. */
+  CXCursor_TemplateTemplateParameter     = 29,
+  /** \brief A C++ function template. */
+  CXCursor_FunctionTemplate              = 30,
   CXCursor_FirstDecl                     = CXCursor_UnexposedDecl,
-  CXCursor_LastDecl                      = CXCursor_ConversionFunction,
+  CXCursor_LastDecl                      = CXCursor_FunctionTemplate,
 
   /* References */
   CXCursor_FirstRef                      = 40, /* Decl references */
diff --git a/include/clang/AST/DeclTemplate.h b/include/clang/AST/DeclTemplate.h
index 3861cd9a91..76d474a8cd 100644
--- a/include/clang/AST/DeclTemplate.h
+++ b/include/clang/AST/DeclTemplate.h
@@ -1138,6 +1138,13 @@ public:
     DefaultArgumentWasInherited = false;
   }
 
+  SourceRange getSourceRange() const {
+    SourceLocation End = getLocation();
+    if (hasDefaultArgument() && !defaultArgumentWasInherited())
+      End = getDefaultArgument().getSourceRange().getEnd();
+    return SourceRange(getTemplateParameters()->getTemplateLoc(), End);
+  }
+
   // Implement isa/cast/dyncast/etc.
   static bool classof(const Decl *D) { return classofKind(D->getKind()); }
   static bool classof(const TemplateTemplateParmDecl *D) { return true; }