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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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1603 | 1603 |
1604 void FixedArray::set(int index, Object* value) { | 1604 void FixedArray::set(int index, Object* value) { |
1605 ASSERT(map() != HEAP->fixed_cow_array_map()); | 1605 ASSERT(map() != HEAP->fixed_cow_array_map()); |
1606 ASSERT(index >= 0 && index < this->length()); | 1606 ASSERT(index >= 0 && index < this->length()); |
1607 int offset = kHeaderSize + index * kPointerSize; | 1607 int offset = kHeaderSize + index * kPointerSize; |
1608 WRITE_FIELD(this, offset, value); | 1608 WRITE_FIELD(this, offset, value); |
1609 WRITE_BARRIER(this, offset); | 1609 WRITE_BARRIER(this, offset); |
1610 } | 1610 } |
1611 | 1611 |
1612 | 1612 |
| 1613 inline bool FixedDoubleArray::is_the_hole_nan(double value) { |
| 1614 return BitCast<uint64_t, double>(value) == kHoleNanInt64; |
| 1615 } |
| 1616 |
| 1617 |
| 1618 inline double FixedDoubleArray::hole_nan_as_double() { |
| 1619 return BitCast<double, uint64_t>(kHoleNanInt64); |
| 1620 } |
| 1621 |
| 1622 |
| 1623 inline double FixedDoubleArray::canonical_not_the_hole_nan_as_double() { |
| 1624 return BitCast<double, uint64_t>(kCanonicalNonHoleNanInt64); |
| 1625 } |
| 1626 |
| 1627 |
1613 double FixedDoubleArray::get(int index) { | 1628 double FixedDoubleArray::get(int index) { |
1614 ASSERT(map() != HEAP->fixed_cow_array_map() && | 1629 ASSERT(map() != HEAP->fixed_cow_array_map() && |
1615 map() != HEAP->fixed_array_map()); | 1630 map() != HEAP->fixed_array_map()); |
1616 ASSERT(index >= 0 && index < this->length()); | 1631 ASSERT(index >= 0 && index < this->length()); |
1617 double result = READ_DOUBLE_FIELD(this, kHeaderSize + index * kDoubleSize); | 1632 double result = READ_DOUBLE_FIELD(this, kHeaderSize + index * kDoubleSize); |
1618 ASSERT(!is_the_hole_nan(result)); | 1633 ASSERT(!is_the_hole_nan(result)); |
1619 return result; | 1634 return result; |
1620 } | 1635 } |
1621 | 1636 |
1622 | 1637 |
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4446 #undef WRITE_INT_FIELD | 4461 #undef WRITE_INT_FIELD |
4447 #undef READ_SHORT_FIELD | 4462 #undef READ_SHORT_FIELD |
4448 #undef WRITE_SHORT_FIELD | 4463 #undef WRITE_SHORT_FIELD |
4449 #undef READ_BYTE_FIELD | 4464 #undef READ_BYTE_FIELD |
4450 #undef WRITE_BYTE_FIELD | 4465 #undef WRITE_BYTE_FIELD |
4451 | 4466 |
4452 | 4467 |
4453 } } // namespace v8::internal | 4468 } } // namespace v8::internal |
4454 | 4469 |
4455 #endif // V8_OBJECTS_INL_H_ | 4470 #endif // V8_OBJECTS_INL_H_ |
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