[Truffle] Add check if property is undefined for uncached specialization

jruby · Jan 11, 2017 · bd11f6b · bd11f6b
1 parent 7c68ee9
commit bd11f6b
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/truffle/src/main/java/org/jruby/truffle/language/objects/ReadObjectFieldNode.java b/truffle/src/main/java/org/jruby/truffle/language/objects/ReadObjectFieldNode.java
@@ -58,6 +58,9 @@ public Object updateShapeAndRead(DynamicObject object) {
     @TruffleBoundary
     @Specialization(contains = { "readObjectFieldCached", "updateShapeAndRead" })
     protected Object readObjectFieldUncached(DynamicObject receiver) {
+        if(getProperty(receiver.getShape(), name) == null){
+            return defaultValue;
+        }
         return receiver.get(name, defaultValue);
     }