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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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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1729 return FastPropertyAtPut(result->GetFieldIndex(), value); | 1729 return FastPropertyAtPut(result->GetFieldIndex(), value); |
1730 case MAP_TRANSITION: | 1730 case MAP_TRANSITION: |
1731 if (attributes == result->GetAttributes()) { | 1731 if (attributes == result->GetAttributes()) { |
1732 // Only use map transition if the attributes match. | 1732 // Only use map transition if the attributes match. |
1733 return AddFastPropertyUsingMap(result->GetTransitionMap(), | 1733 return AddFastPropertyUsingMap(result->GetTransitionMap(), |
1734 name, | 1734 name, |
1735 value); | 1735 value); |
1736 } | 1736 } |
1737 return ConvertDescriptorToField(name, value, attributes); | 1737 return ConvertDescriptorToField(name, value, attributes); |
1738 case CONSTANT_FUNCTION: | 1738 case CONSTANT_FUNCTION: |
| 1739 // Only replace the function if necessary. |
1739 if (value == result->GetConstantFunction()) return value; | 1740 if (value == result->GetConstantFunction()) return value; |
1740 // Only replace the function if necessary. | 1741 // Preserve the attributes of this existing property. |
| 1742 attributes = result->GetAttributes(); |
1741 return ConvertDescriptorToFieldAndMapTransition(name, value, attributes); | 1743 return ConvertDescriptorToFieldAndMapTransition(name, value, attributes); |
1742 case CALLBACKS: | 1744 case CALLBACKS: |
1743 return SetPropertyWithCallback(result->GetCallbackObject(), | 1745 return SetPropertyWithCallback(result->GetCallbackObject(), |
1744 name, | 1746 name, |
1745 value, | 1747 value, |
1746 result->holder()); | 1748 result->holder()); |
1747 case INTERCEPTOR: | 1749 case INTERCEPTOR: |
1748 return SetPropertyWithInterceptor(name, value, attributes); | 1750 return SetPropertyWithInterceptor(name, value, attributes); |
1749 case CONSTANT_TRANSITION: | 1751 case CONSTANT_TRANSITION: |
1750 // Replace with a MAP_TRANSITION to a new map with a FIELD, even | 1752 // Replace with a MAP_TRANSITION to a new map with a FIELD, even |
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1810 return FastPropertyAtPut(result->GetFieldIndex(), value); | 1812 return FastPropertyAtPut(result->GetFieldIndex(), value); |
1811 case MAP_TRANSITION: | 1813 case MAP_TRANSITION: |
1812 if (attributes == result->GetAttributes()) { | 1814 if (attributes == result->GetAttributes()) { |
1813 // Only use map transition if the attributes match. | 1815 // Only use map transition if the attributes match. |
1814 return AddFastPropertyUsingMap(result->GetTransitionMap(), | 1816 return AddFastPropertyUsingMap(result->GetTransitionMap(), |
1815 name, | 1817 name, |
1816 value); | 1818 value); |
1817 } | 1819 } |
1818 return ConvertDescriptorToField(name, value, attributes); | 1820 return ConvertDescriptorToField(name, value, attributes); |
1819 case CONSTANT_FUNCTION: | 1821 case CONSTANT_FUNCTION: |
| 1822 // Only replace the function if necessary. |
1820 if (value == result->GetConstantFunction()) return value; | 1823 if (value == result->GetConstantFunction()) return value; |
1821 // Only replace the function if necessary. | 1824 // Preserve the attributes of this existing property. |
| 1825 attributes = result->GetAttributes(); |
1822 return ConvertDescriptorToFieldAndMapTransition(name, value, attributes); | 1826 return ConvertDescriptorToFieldAndMapTransition(name, value, attributes); |
1823 case CALLBACKS: | 1827 case CALLBACKS: |
1824 case INTERCEPTOR: | 1828 case INTERCEPTOR: |
1825 // Override callback in clone | 1829 // Override callback in clone |
1826 return ConvertDescriptorToField(name, value, attributes); | 1830 return ConvertDescriptorToField(name, value, attributes); |
1827 case CONSTANT_TRANSITION: | 1831 case CONSTANT_TRANSITION: |
1828 // Replace with a MAP_TRANSITION to a new map with a FIELD, even | 1832 // Replace with a MAP_TRANSITION to a new map with a FIELD, even |
1829 // if the value is a function. | 1833 // if the value is a function. |
1830 return ConvertDescriptorToFieldAndMapTransition(name, value, attributes); | 1834 return ConvertDescriptorToFieldAndMapTransition(name, value, attributes); |
1831 case NULL_DESCRIPTOR: | 1835 case NULL_DESCRIPTOR: |
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7501 // No break point. | 7505 // No break point. |
7502 if (break_point_objects()->IsUndefined()) return 0; | 7506 if (break_point_objects()->IsUndefined()) return 0; |
7503 // Single beak point. | 7507 // Single beak point. |
7504 if (!break_point_objects()->IsFixedArray()) return 1; | 7508 if (!break_point_objects()->IsFixedArray()) return 1; |
7505 // Multiple break points. | 7509 // Multiple break points. |
7506 return FixedArray::cast(break_point_objects())->length(); | 7510 return FixedArray::cast(break_point_objects())->length(); |
7507 } | 7511 } |
7508 #endif | 7512 #endif |
7509 | 7513 |
7510 } } // namespace v8::internal | 7514 } } // namespace v8::internal |
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