Recording array buffer views.

src/runtime.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 669 matching lines @@
     array_buffer->SetInternalField(i, Smi::FromInt(0));
   }
   array_buffer->set_backing_store(data);
   array_buffer->set_flag(Smi::FromInt(0));
   array_buffer->set_is_external(is_external);
 
   Handle<Object> byte_length =
       isolate->factory()->NewNumberFromSize(allocated_length);
   CHECK(byte_length->IsSmi() || byte_length->IsHeapNumber());
   array_buffer->set_byte_length(*byte_length);
+
+  array_buffer->set_weak_next(isolate->heap()->array_buffers_list());
+  isolate->heap()->set_array_buffers_list(*array_buffer);
+  array_buffer->set_weak_first_array(Smi::FromInt(0));
 }
 
 
 bool Runtime::SetupArrayBufferAllocatingData(
     Isolate* isolate,
     Handle<JSArrayBuffer> array_buffer,
     size_t allocated_length) {
   void* data;
   if (allocated_length != 0) {
     data = malloc(allocated_length);
@@ skipping 148 matching lines @@
   holder->set_byte_offset(*byte_offset_object);
   holder->set_byte_length(*byte_length_object);
 
   size_t byte_offset = NumberToSize(isolate, *byte_offset_object);
   size_t byte_length = NumberToSize(isolate, *byte_length_object);
   ASSERT(byte_length % elementSize == 0);
   size_t length = byte_length / elementSize;
 
   Handle<Object> length_obj = isolate->factory()->NewNumberFromSize(length);
   holder->set_length(*length_obj);
+  holder->set_weak_next(buffer->weak_first_array());
+  buffer->set_weak_first_array(*holder);
 
   Handle<ExternalArray> elements =
       isolate->factory()->NewExternalArray(
           static_cast<int>(length), arrayType,
           static_cast<uint8_t*>(buffer->backing_store()) + byte_offset);
   holder->set_elements(*elements);
   return isolate->heap()->undefined_value();
 }
 
 
@@ skipping 12656 matching lines @@
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags,
                                        "Runtime::PerformGC");
   }
 }
 
 
 } }  // namespace v8::internal