Add libclang capabilities to retriete template arguments from specializations.

Includes Python bindings.

Reviewed in http://reviews.llvm.org/D5621
Patch by Rob Springer

llvm-svn: 219529

1 files changed, 29 insertions, 2 deletions

diff --git a/clang/tools/c-index-test/c-index-test.c b/clang/tools/c-index-test/c-index-test.c
index d7c28dd..56e4101 100644
--- a/clang/tools/c-index-test/c-index-test.c
+++ b/clang/tools/c-index-test/c-index-test.c
@@ -796,15 +796,42 @@ static void PrintCursor(CXCursor Cursor, const char *CommentSchemaFile) {
       printf(" [access=%s isVirtual=%s]", accessStr,
              isVirtual ? "true" : "false");
     }
-    
+
     SpecializationOf = clang_getSpecializedCursorTemplate(Cursor);
     if (!clang_equalCursors(SpecializationOf, clang_getNullCursor())) {
       CXSourceLocation Loc = clang_getCursorLocation(SpecializationOf);
       CXString Name = clang_getCursorSpelling(SpecializationOf);
       clang_getSpellingLocation(Loc, 0, &line, &column, 0);
-      printf(" [Specialization of %s:%d:%d]", 
+      printf(" [Specialization of %s:%d:%d]",
              clang_getCString(Name), line, column);
       clang_disposeString(Name);
+
+      if (Cursor.kind == CXCursor_FunctionDecl) {
+        /* Collect the template parameter kinds from the base template. */
+        unsigned NumTemplateArgs = clang_Cursor_getNumTemplateArguments(Cursor);
+        unsigned I;
+        for (I = 0; I < NumTemplateArgs; I++) {
+          enum CXTemplateArgumentKind TAK =
+              clang_Cursor_getTemplateArgumentKind(Cursor, I);
+          switch(TAK) {
+            case CXTemplateArgumentKind_Type:
+              {
+                CXType T = clang_Cursor_getTemplateArgumentType(Cursor, I);
+                CXString S = clang_getTypeSpelling(T);
+                printf(" [Template arg %d: kind: %d, type: %s]",
+                       I, TAK, clang_getCString(S));
+                clang_disposeString(S);
+              }
+              break;
+            case CXTemplateArgumentKind_Integral:
+              printf(" [Template arg %d: kind: %d, intval: %lld]",
+                     I, TAK, clang_Cursor_getTemplateArgumentValue(Cursor, I));
+              break;
+            default:
+              printf(" [Template arg %d: kind: %d]\n", I, TAK);
+          }
+        }
+      }
     }
 
     clang_getOverriddenCursors(Cursor, &overridden, &num_overridden);