Implement instance variable references.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44016 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/AST/Expr.cpp b/AST/Expr.cpp
index 910bdf9..1ef93f5 100644
--- a/AST/Expr.cpp
+++ b/AST/Expr.cpp
@@ -923,6 +923,10 @@
 Stmt::child_iterator DeclRefExpr::child_begin() { return child_iterator(); }
 Stmt::child_iterator DeclRefExpr::child_end() { return child_iterator(); }
 
+// ObjCIvarRefExpr
+Stmt::child_iterator ObjCIvarRefExpr::child_begin() { return child_iterator(); }
+Stmt::child_iterator ObjCIvarRefExpr::child_end() { return child_iterator(); }
+
 // PreDefinedExpr
 Stmt::child_iterator PreDefinedExpr::child_begin() { return child_iterator(); }
 Stmt::child_iterator PreDefinedExpr::child_end() { return child_iterator(); }
diff --git a/AST/StmtPrinter.cpp b/AST/StmtPrinter.cpp
index 7fa553d..ae8bb1a 100644
--- a/AST/StmtPrinter.cpp
+++ b/AST/StmtPrinter.cpp
@@ -382,6 +382,10 @@
   OS << Node->getDecl()->getName();
 }
 
+void StmtPrinter::VisitObjCIvarRefExpr(ObjCIvarRefExpr *Node) {
+  OS << Node->getDecl()->getName();
+}
+
 void StmtPrinter::VisitPreDefinedExpr(PreDefinedExpr *Node) {
   switch (Node->getIdentType()) {
     default:
diff --git a/AST/StmtSerialization.cpp b/AST/StmtSerialization.cpp
index 5ea56c2..a0197f9 100644
--- a/AST/StmtSerialization.cpp
+++ b/AST/StmtSerialization.cpp
@@ -337,6 +337,20 @@
   return dr;
 }
 
+void ObjCIvarRefExpr::directEmit(Serializer& S) const {
+  S.Emit(Loc);
+  S.Emit(getType());
+  S.EmitPtr(getDecl());
+}
+
+ObjCIvarRefExpr* ObjCIvarRefExpr::directMaterialize(Deserializer& D) {
+  SourceLocation Loc = SourceLocation::ReadVal(D);
+  QualType T = QualType::ReadVal(D);
+  ObjCIvarRefExpr* dr = new ObjCIvarRefExpr(NULL,T,Loc);
+  D.ReadPtr(dr->D,false);  
+  return dr;
+}
+
 DeclStmt* DeclStmt::directMaterialize(Deserializer& D) {
   ScopedDecl* decl = cast<ScopedDecl>(D.ReadOwnedPtr<Decl>());
   return new DeclStmt(decl);