Implementation for ClosureMirror.findInContext.

runtime/vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 5635 matching lines @@
                      " on field %s was violated.\n",
                      function.ToFullyQualifiedCString(),
                      ToCString());
       }
       function.SwitchToUnoptimizedCode();
     }
   }
 }
 
 
+bool Field::IsUninitialized() const {
+  const Instance& value = Instance::Handle(raw_ptr()->value_);
+  ASSERT(value.raw() != Object::transition_sentinel().raw());
+  return value.raw() == Object::sentinel().raw();
+}
+
+
 void Field::UpdateCid(intptr_t cid) const {
   if (guarded_cid() == kIllegalCid) {
     // Field is assigned first time.
     set_guarded_cid(cid);
     set_is_nullable(cid == kNullCid);
     return;
   }
 
   if ((cid == guarded_cid()) || ((cid == kNullCid) && is_nullable())) {
     // Class id of the assigned value matches expected class id and nullability.
@@ skipping 9499 matching lines @@
   return "_MirrorReference";
 }
 
 
 void MirrorReference::PrintToJSONStream(JSONStream* stream, bool ref) const {
   JSONObject jsobj(stream);
 }
 
 
 }  // namespace dart