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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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1587 index -= map()->inobject_properties(); | 1587 index -= map()->inobject_properties(); |
1588 ASSERT(index < 0); | 1588 ASSERT(index < 0); |
1589 int offset = map()->instance_size() + (index * kPointerSize); | 1589 int offset = map()->instance_size() + (index * kPointerSize); |
1590 WRITE_FIELD(this, offset, value); | 1590 WRITE_FIELD(this, offset, value); |
1591 CONDITIONAL_WRITE_BARRIER(GetHeap(), this, offset, mode); | 1591 CONDITIONAL_WRITE_BARRIER(GetHeap(), this, offset, mode); |
1592 return value; | 1592 return value; |
1593 } | 1593 } |
1594 | 1594 |
1595 | 1595 |
1596 | 1596 |
1597 void JSObject::InitializeBody(int object_size, Object* value) { | 1597 void JSObject::InitializeBody(Map* map, |
1598 ASSERT(!value->IsHeapObject() || !GetHeap()->InNewSpace(value)); | 1598 Object* pre_allocated_value, |
1599 for (int offset = kHeaderSize; offset < object_size; offset += kPointerSize) { | 1599 Object* filler_value) { |
1600 WRITE_FIELD(this, offset, value); | 1600 ASSERT(!filler_value->IsHeapObject() || |
| 1601 !GetHeap()->InNewSpace(filler_value)); |
| 1602 ASSERT(!pre_allocated_value->IsHeapObject() || |
| 1603 !GetHeap()->InNewSpace(pre_allocated_value)); |
| 1604 int size = map->instance_size(); |
| 1605 int offset = kHeaderSize; |
| 1606 if (filler_value != pre_allocated_value) { |
| 1607 int pre_allocated = map->pre_allocated_property_fields(); |
| 1608 ASSERT(pre_allocated * kPointerSize + kHeaderSize <= size); |
| 1609 for (int i = 0; i < pre_allocated; i++) { |
| 1610 WRITE_FIELD(this, offset, pre_allocated_value); |
| 1611 offset += kPointerSize; |
| 1612 } |
| 1613 } |
| 1614 while (offset < size) { |
| 1615 WRITE_FIELD(this, offset, filler_value); |
| 1616 offset += kPointerSize; |
1601 } | 1617 } |
1602 } | 1618 } |
1603 | 1619 |
1604 | 1620 |
1605 bool JSObject::HasFastProperties() { | 1621 bool JSObject::HasFastProperties() { |
1606 return !properties()->IsDictionary(); | 1622 return !properties()->IsDictionary(); |
1607 } | 1623 } |
1608 | 1624 |
1609 | 1625 |
1610 int JSObject::MaxFastProperties() { | 1626 int JSObject::MaxFastProperties() { |
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4643 #undef WRITE_INT_FIELD | 4659 #undef WRITE_INT_FIELD |
4644 #undef READ_SHORT_FIELD | 4660 #undef READ_SHORT_FIELD |
4645 #undef WRITE_SHORT_FIELD | 4661 #undef WRITE_SHORT_FIELD |
4646 #undef READ_BYTE_FIELD | 4662 #undef READ_BYTE_FIELD |
4647 #undef WRITE_BYTE_FIELD | 4663 #undef WRITE_BYTE_FIELD |
4648 | 4664 |
4649 | 4665 |
4650 } } // namespace v8::internal | 4666 } } // namespace v8::internal |
4651 | 4667 |
4652 #endif // V8_OBJECTS_INL_H_ | 4668 #endif // V8_OBJECTS_INL_H_ |
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