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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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| 207 if (CalledAsConstructor(isolate)) { | 207 if (CalledAsConstructor(isolate)) { |
| 208 array = JSArray::cast((*args)[0]); | 208 array = JSArray::cast((*args)[0]); |
| 209 // Initialize elements and length in case later allocations fail so that the | 209 // Initialize elements and length in case later allocations fail so that the |
| 210 // array object is initialized in a valid state. | 210 // array object is initialized in a valid state. |
| 211 MaybeObject* maybe_array = array->Initialize(0); | 211 MaybeObject* maybe_array = array->Initialize(0); |
| 212 if (maybe_array->IsFailure()) return maybe_array; | 212 if (maybe_array->IsFailure()) return maybe_array; |
| 213 | 213 |
| 214 AllocationSiteInfo* info = AllocationSiteInfo::FindForJSObject(array); | 214 AllocationSiteInfo* info = AllocationSiteInfo::FindForJSObject(array); |
| 215 if (info != NULL && info->IsValid()) { | 215 if (info != NULL && info->IsValid()) { |
| 216 AllocationSite* site = info->GetAllocationSite(); | 216 AllocationSite* site = info->GetAllocationSite(); |
| 217 ElementsKind to_kind = site->GetElementsKindPayload(); | 217 ElementsKind to_kind = site->GetElementsKind(); |
| 218 if (IsMoreGeneralElementsKindTransition(array->GetElementsKind(), | 218 if (IsMoreGeneralElementsKindTransition(array->GetElementsKind(), |
| 219 to_kind)) { | 219 to_kind)) { |
| 220 // We have advice that we should change the elements kind | 220 // We have advice that we should change the elements kind |
| 221 if (FLAG_trace_track_allocation_sites) { | 221 if (FLAG_trace_track_allocation_sites) { |
| 222 PrintF("AllocationSiteInfo: pre-transitioning array %p(%s->%s)\n", | 222 PrintF("AllocationSiteInfo: pre-transitioning array %p(%s->%s)\n", |
| 223 reinterpret_cast<void*>(array), | 223 reinterpret_cast<void*>(array), |
| 224 ElementsKindToString(array->GetElementsKind()), | 224 ElementsKindToString(array->GetElementsKind()), |
| 225 ElementsKindToString(to_kind)); | 225 ElementsKindToString(to_kind)); |
| 226 } | 226 } |
| 227 | 227 |
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| 1835 return Handle<Code>(code_address); \ | 1835 return Handle<Code>(code_address); \ |
| 1836 } | 1836 } |
| 1837 BUILTIN_LIST_C(DEFINE_BUILTIN_ACCESSOR_C) | 1837 BUILTIN_LIST_C(DEFINE_BUILTIN_ACCESSOR_C) |
| 1838 BUILTIN_LIST_A(DEFINE_BUILTIN_ACCESSOR_A) | 1838 BUILTIN_LIST_A(DEFINE_BUILTIN_ACCESSOR_A) |
| 1839 BUILTIN_LIST_DEBUG_A(DEFINE_BUILTIN_ACCESSOR_A) | 1839 BUILTIN_LIST_DEBUG_A(DEFINE_BUILTIN_ACCESSOR_A) |
| 1840 #undef DEFINE_BUILTIN_ACCESSOR_C | 1840 #undef DEFINE_BUILTIN_ACCESSOR_C |
| 1841 #undef DEFINE_BUILTIN_ACCESSOR_A | 1841 #undef DEFINE_BUILTIN_ACCESSOR_A |
| 1842 | 1842 |
| 1843 | 1843 |
| 1844 } } // namespace v8::internal | 1844 } } // namespace v8::internal |
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