[libclang 1/8] Add support for ObjCObjectType

Summary: This patch adds support to the clang-c API for identifying ObjCObjects in CXTypes, enumerating type args and protocols on ObjCObjectTypes, and retrieving the base type of ObjCObjectTypes. Currently only ObjCInterfaceTypes are exposed, which do not have type args or protocols.

Reviewers: yvvan, jbcoe

Reviewed By: yvvan

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D49063

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@338804 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 40 insertions, 1 deletions

diff --git a/include/clang-c/Index.h b/include/clang-c/Index.h
index 5178048bf7..170c658f57 100644
--- a/include/clang-c/Index.h
+++ b/include/clang-c/Index.h
@@ -3265,7 +3265,9 @@ enum CXTypeKind {
   CXType_OCLSampler = 157,
   CXType_OCLEvent = 158,
   CXType_OCLQueue = 159,
-  CXType_OCLReserveID = 160
+  CXType_OCLReserveID = 160,
+
+  CXType_ObjCObject = 161
 };
 
 /**
@@ -3627,6 +3629,43 @@ CINDEX_LINKAGE int clang_getNumArgTypes(CXType T);
 CINDEX_LINKAGE CXType clang_getArgType(CXType T, unsigned i);
 
 /**
+ * Retrieves the base type of the ObjCObjectType.
+ *
+ * If the type is not an ObjC object, an invalid type is returned.
+ */
+CINDEX_LINKAGE CXType clang_Type_getObjCObjectBaseType(CXType T);
+
+/**
+ * Retrieve the number of protocol references associated with an ObjC object/id.
+ *
+ * If the type is not an ObjC object, 0 is returned.
+ */
+CINDEX_LINKAGE unsigned clang_Type_getNumObjCProtocolRefs(CXType T);
+
+/**
+ * Retrieve the decl for a protocol reference for an ObjC object/id.
+ *
+ * If the type is not an ObjC object or there are not enough protocol
+ * references, an invalid cursor is returned.
+ */
+CINDEX_LINKAGE CXCursor clang_Type_getObjCProtocolDecl(CXType T, unsigned i);
+
+/**
+ * Retreive the number of type arguments associated with an ObjC object.
+ *
+ * If the type is not an ObjC object, 0 is returned.
+ */
+CINDEX_LINKAGE unsigned clang_Type_getNumObjCTypeArgs(CXType T);
+
+/**
+ * Retrieve a type argument associated with an ObjC object.
+ *
+ * If the type is not an ObjC or the index is not valid,
+ * an invalid type is returned.
+ */
+CINDEX_LINKAGE CXType clang_Type_getObjCTypeArg(CXType T, unsigned i);
+
+/**
  * Return 1 if the CXType is a variadic function type, and 0 otherwise.
  */
 CINDEX_LINKAGE unsigned clang_isFunctionTypeVariadic(CXType T);