src/tools/clang/blink_gc_plugin/tests/weak_fields_require_tracing.cpp

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "weak_fields_require_tracing.h"
   6
   7 namespace blink {
   8
   9 void HeapObject::trace(Visitor* visitor)
  10 {
  11     // Missing visitor->trace(m_obj1);
  12     // Missing visitor->trace(m_obj2);
  13     // visitor->trace(m_obj3) in callback.
  14     // Missing visitor->trace(m_set1);
  15     visitor->trace(m_set2);
  16     visitor->registerWeakMembers<HeapObject,
  17                                  &HeapObject::clearWeakMembers>(this);
  18 }
  19
  20 void HeapObject::clearWeakMembers(Visitor* visitor)
  21 {
  22     visitor->trace(m_obj1);  // Does not count.
  23     // Missing visitor->trace(m_obj2);
  24     visitor->trace(m_obj3);  // OK.
  25     visitor->trace(m_set1);  // Does not count.
  26 }
  27
  28 }