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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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1155 | 1155 |
1156 void DescriptorArray::Swap(int first, int second) { | 1156 void DescriptorArray::Swap(int first, int second) { |
1157 fast_swap(this, ToKeyIndex(first), ToKeyIndex(second)); | 1157 fast_swap(this, ToKeyIndex(first), ToKeyIndex(second)); |
1158 FixedArray* content_array = GetContentArray(); | 1158 FixedArray* content_array = GetContentArray(); |
1159 fast_swap(content_array, ToValueIndex(first), ToValueIndex(second)); | 1159 fast_swap(content_array, ToValueIndex(first), ToValueIndex(second)); |
1160 fast_swap(content_array, ToDetailsIndex(first), ToDetailsIndex(second)); | 1160 fast_swap(content_array, ToDetailsIndex(first), ToDetailsIndex(second)); |
1161 } | 1161 } |
1162 | 1162 |
1163 | 1163 |
1164 bool Dictionary::requires_slow_elements() { | 1164 bool Dictionary::requires_slow_elements() { |
1165 Object* max_index_object = get(kPrefixStartIndex); | 1165 Object* max_index_object = get(kMaxNumberKeyIndex); |
1166 if (!max_index_object->IsSmi()) return false; | 1166 if (!max_index_object->IsSmi()) return false; |
1167 return 0 != | 1167 return 0 != |
1168 (Smi::cast(max_index_object)->value() & kRequiresSlowElementsMask); | 1168 (Smi::cast(max_index_object)->value() & kRequiresSlowElementsMask); |
1169 } | 1169 } |
1170 | 1170 |
1171 | 1171 |
1172 uint32_t Dictionary::max_number_key() { | 1172 uint32_t Dictionary::max_number_key() { |
1173 ASSERT(!requires_slow_elements()); | 1173 ASSERT(!requires_slow_elements()); |
1174 Object* max_index_object = get(kPrefixStartIndex); | 1174 Object* max_index_object = get(kMaxNumberKeyIndex); |
1175 if (!max_index_object->IsSmi()) return 0; | 1175 if (!max_index_object->IsSmi()) return 0; |
1176 uint32_t value = static_cast<uint32_t>(Smi::cast(max_index_object)->value()); | 1176 uint32_t value = static_cast<uint32_t>(Smi::cast(max_index_object)->value()); |
1177 return value >> kRequiresSlowElementsTagSize; | 1177 return value >> kRequiresSlowElementsTagSize; |
1178 } | 1178 } |
1179 | 1179 |
1180 | 1180 |
1181 // ------------------------------------ | 1181 // ------------------------------------ |
1182 // Cast operations | 1182 // Cast operations |
1183 | 1183 |
1184 | 1184 |
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2334 #undef WRITE_INT_FIELD | 2334 #undef WRITE_INT_FIELD |
2335 #undef READ_SHORT_FIELD | 2335 #undef READ_SHORT_FIELD |
2336 #undef WRITE_SHORT_FIELD | 2336 #undef WRITE_SHORT_FIELD |
2337 #undef READ_BYTE_FIELD | 2337 #undef READ_BYTE_FIELD |
2338 #undef WRITE_BYTE_FIELD | 2338 #undef WRITE_BYTE_FIELD |
2339 | 2339 |
2340 | 2340 |
2341 } } // namespace v8::internal | 2341 } } // namespace v8::internal |
2342 | 2342 |
2343 #endif // V8_OBJECTS_INL_H_ | 2343 #endif // V8_OBJECTS_INL_H_ |
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