ObjectiveC++: support for passing C++11 style initialized temporaries to

objc++ properties using property-dot syntax.
// rdar://14654207


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@192819 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/Sema/SemaPseudoObject.cpp b/lib/Sema/SemaPseudoObject.cpp
index 106250fe0f..af74f0d4a3 100644
--- a/lib/Sema/SemaPseudoObject.cpp
+++ b/lib/Sema/SemaPseudoObject.cpp
@@ -730,6 +730,16 @@ ExprResult ObjCPropertyOpBuilder::buildSet(Expr *op, SourceLocation opcLoc,
       op = opResult.take();
       assert(op && "successful assignment left argument invalid?");
     }
+    else if (OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(op)) {
+      Expr *Initializer = OVE->getSourceExpr();
+      // passing C++11 style initialized temporaries to objc++ properties
+      // requires special treatment by removing OpaqueValueExpr so type
+      // conversion takes place and adding the OpaqueValueExpr later on.
+      if (isa<InitListExpr>(Initializer) &&
+          Initializer->getType()->isVoidType()) {
+        op = Initializer;
+      }
+    }
   }
 
   // Arguments.