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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 // | 4 // |
| 5 // The intrinsic code below is executed before a method has built its frame. | 5 // The intrinsic code below is executed before a method has built its frame. |
| 6 // The return address is on the stack and the arguments below it. | 6 // The return address is on the stack and the arguments below it. |
| 7 // Registers EDX (arguments descriptor) and ECX (function) must be preserved. | 7 // Registers EDX (arguments descriptor) and ECX (function) must be preserved. |
| 8 // Each intrinsification method returns true if the corresponding | 8 // Each intrinsification method returns true if the corresponding |
| 9 // Dart method was intrinsified. | 9 // Dart method was intrinsified. |
| 10 | 10 |
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| 1595 | 1595 |
| 1596 | 1596 |
| 1597 static const char* kFixedSizeArrayIteratorClassName = "_FixedSizeArrayIterator"; | 1597 static const char* kFixedSizeArrayIteratorClassName = "_FixedSizeArrayIterator"; |
| 1598 | 1598 |
| 1599 | 1599 |
| 1600 // Class 'FixedSizeArrayIterator': | 1600 // Class 'FixedSizeArrayIterator': |
| 1601 // T next() { | 1601 // T next() { |
| 1602 // return _array[_pos++]; | 1602 // return _array[_pos++]; |
| 1603 // } | 1603 // } |
| 1604 // Intrinsify: return _array[_pos++]; | 1604 // Intrinsify: return _array[_pos++]; |
| 1605 // TODO(srdjan): Throw a 'NoMoreElementsException' exception if the iterator | 1605 // TODO(srdjan): Throw a 'StateError' exception if the iterator |
| 1606 // has no more elements. | 1606 // has no more elements. |
| 1607 bool Intrinsifier::FixedSizeArrayIterator_next(Assembler* assembler) { | 1607 bool Intrinsifier::FixedSizeArrayIterator_next(Assembler* assembler) { |
| 1608 Label fall_through; | 1608 Label fall_through; |
| 1609 intptr_t array_offset = | 1609 intptr_t array_offset = |
| 1610 GetOffsetForField(kFixedSizeArrayIteratorClassName, "_array"); | 1610 GetOffsetForField(kFixedSizeArrayIteratorClassName, "_array"); |
| 1611 intptr_t pos_offset = | 1611 intptr_t pos_offset = |
| 1612 GetOffsetForField(kFixedSizeArrayIteratorClassName, "_pos"); | 1612 GetOffsetForField(kFixedSizeArrayIteratorClassName, "_pos"); |
| 1613 ASSERT(array_offset >= 0 && pos_offset >= 0); | 1613 ASSERT(array_offset >= 0 && pos_offset >= 0); |
| 1614 // Receiver is not NULL. | 1614 // Receiver is not NULL. |
| 1615 __ movl(EAX, Address(ESP, + 1 * kWordSize)); // Receiver. | 1615 __ movl(EAX, Address(ESP, + 1 * kWordSize)); // Receiver. |
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| 1732 __ Bind(&is_true); | 1732 __ Bind(&is_true); |
| 1733 __ LoadObject(EAX, bool_true); | 1733 __ LoadObject(EAX, bool_true); |
| 1734 __ ret(); | 1734 __ ret(); |
| 1735 return true; | 1735 return true; |
| 1736 } | 1736 } |
| 1737 | 1737 |
| 1738 #undef __ | 1738 #undef __ |
| 1739 } // namespace dart | 1739 } // namespace dart |
| 1740 | 1740 |
| 1741 #endif // defined TARGET_ARCH_IA32 | 1741 #endif // defined TARGET_ARCH_IA32 |
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