Encode Class, SEL and Objective-C objects.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@43540 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 18 insertions, 0 deletions

diff --git a/include/clang/AST/ASTContext.h b/include/clang/AST/ASTContext.h
index dda0490f24..043ffb30c9 100644
--- a/include/clang/AST/ASTContext.h
+++ b/include/clang/AST/ASTContext.h
@@ -59,6 +59,10 @@ class ASTContext {
   /// ObjcProtoType - another psuedo built-in typedef type (set by Sema).
   QualType ObjcProtoType;
   const RecordType *ProtoStructType;
+
+  /// ObjcClassType - another psuedo built-in typedef type (set by Sema).
+  QualType ObjcClassType;
+  const RecordType *ClassStructType;
   
   QualType ObjcConstantStringType;
   RecordDecl *CFConstantStringTypeDecl;
@@ -196,6 +200,9 @@ public:
   void setObjcProtoType(TypedefDecl *Decl);
   QualType getObjcProtoType() const { return ObjcProtoType; }
   
+  void setObjcClassType(TypedefDecl *Decl);
+  QualType getObjcClassType() const { return ObjcClassType; }
+  
   void setBuiltinVaListType(QualType T);
   QualType getBuiltinVaListType() const { return BuiltinVaListType; }
     
@@ -264,6 +271,15 @@ public:
     assert(IdStructType && "isObjcIdType used before 'id' type is built");
     return T->getAsStructureType() == IdStructType;
   }
+  bool isObjcClassType(QualType T) const {
+    assert(ClassStructType && "isObjcClassType used before 'Class' type is built");
+    return T->getAsStructureType() == ClassStructType;
+  }
+  bool isObjcSelType(QualType T) const {
+    assert(SelStructType && "isObjcSelType used before 'SEL' type is built");
+    return T->getAsStructureType() == SelStructType;
+  }
+
 private:
   ASTContext(const ASTContext&); // DO NOT IMPLEMENT
   void operator=(const ASTContext&); // DO NOT IMPLEMENT
diff --git a/include/clang/Basic/DiagnosticKinds.def b/include/clang/Basic/DiagnosticKinds.def
index bbdb6bc517..8a65b7310e 100644
--- a/include/clang/Basic/DiagnosticKinds.def
+++ b/include/clang/Basic/DiagnosticKinds.def
@@ -450,6 +450,8 @@ DIAG(err_missing_id_definition, ERROR,
      "cannot find definition of 'id'")
 DIAG(err_missing_proto_definition, ERROR,
      "cannot find definition of 'Protocol'")
+DIAG(err_missing_class_definition, ERROR,
+     "cannot find definition of 'Class'")
 DIAG(warn_previous_alias_decl, WARNING,
      "previously declared alias is ignored")
 DIAG(warn_previous_declaration, WARNING,