diff -r 9308d52205a0 -r bab29bcec7fe src/Types.cpp
--- a/src/Types.cpp	Sun Sep 16 19:02:23 2012 -0700
+++ b/src/Types.cpp	Sun Sep 16 21:34:10 2012 -0700
@@ -104,6 +104,29 @@
 }
 
 Type *
+Type::NewExternalArray(Zone *zone, Handle<Type> contained)
+{
+    Local<Type> type(zone, Type::cast(zone->allocate(MapKind_Type, sizeof(Type), Heap::Tenure_Old)));
+    if (!type)
+        return NULL;
+
+    assert(contained->isPrimitive());
+
+    type->kind_ = EXTERNAL_ARRAY;
+    type->name_ = NULL;
+    type->contained_ = contained;
+    type->returnType_ = NULL;
+    type->parameters_ = NULL;
+    type->defaults_ = NULL;
+    type->fields_ = NULL;
+    type->newMap_ = NULL;
+    type->elements_ = DYNAMIC_ARRAY_SIZE;
+    type->levels_ = 1;
+    type->const_ = false;
+    return type;
+}
+
+Type *
 Type::NewReference(Zone *zone, Handle<Type> contained, bool isConst)
 {
     Local<Type> type(zone, Type::cast(zone->allocate(MapKind_Type, sizeof(Type), Heap::Tenure_Old)));