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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/elements.h" | 5 #include "src/elements.h" |
6 | 6 |
7 #include "src/arguments.h" | 7 #include "src/arguments.h" |
8 #include "src/conversions.h" | 8 #include "src/conversions.h" |
9 #include "src/factory.h" | 9 #include "src/factory.h" |
10 #include "src/isolate-inl.h" | 10 #include "src/isolate-inl.h" |
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2856 *nof_items = count; | 2856 *nof_items = count; |
2857 return Just(true); | 2857 return Just(true); |
2858 } | 2858 } |
2859 | 2859 |
2860 static Object* FillImpl(Isolate* isolate, Handle<JSObject> receiver, | 2860 static Object* FillImpl(Isolate* isolate, Handle<JSObject> receiver, |
2861 Handle<Object> obj_value, uint32_t start, | 2861 Handle<Object> obj_value, uint32_t start, |
2862 uint32_t end) { | 2862 uint32_t end) { |
2863 Handle<JSTypedArray> array = Handle<JSTypedArray>::cast(receiver); | 2863 Handle<JSTypedArray> array = Handle<JSTypedArray>::cast(receiver); |
2864 DCHECK(!array->WasNeutered()); | 2864 DCHECK(!array->WasNeutered()); |
2865 | 2865 |
2866 if (!obj_value->IsNumber()) { | |
2867 return FillNumberSlowPath(isolate, array, obj_value, start, end); | |
2868 } | |
2869 | |
2870 ctype value = 0; | 2866 ctype value = 0; |
2871 if (obj_value->IsSmi()) { | 2867 if (obj_value->IsSmi()) { |
2872 value = BackingStore::from_int(Smi::cast(*obj_value)->value()); | 2868 value = BackingStore::from_int(Smi::cast(*obj_value)->value()); |
2869 } else if (obj_value->IsHeapNumber()) { | |
caitp
2017/03/22 13:11:42
Oh nvm, I thought we had a fast path in CSA. This
Camillo Bruni
2017/03/22 21:26:50
Given that we now perform additional checks, let's
rongjie
2017/03/23 00:01:49
Done.
| |
2870 value = BackingStore::from_double(HeapNumber::cast(*obj_value)->value()); | |
2871 } else if (obj_value->IsUndefined(isolate)) { | |
2872 value = | |
2873 BackingStore::from_double(std::numeric_limits<double>::quiet_NaN()); | |
2874 } else if (obj_value->IsNull(isolate)) { | |
2875 value = static_cast<ctype>(+0.0); | |
2876 } else if (obj_value->IsBoolean()) { | |
2877 value = static_cast<ctype>(obj_value->IsTrue(isolate)); | |
2873 } else { | 2878 } else { |
2874 DCHECK(obj_value->IsHeapNumber()); | 2879 return FillNumberSlowPath(isolate, array, obj_value, start, end); |
2875 value = BackingStore::from_double(HeapNumber::cast(*obj_value)->value()); | |
2876 } | 2880 } |
2877 | 2881 |
2878 // Ensure indexes are within array bounds | 2882 // Ensure indexes are within array bounds |
2879 DCHECK_LE(0, start); | 2883 DCHECK_LE(0, start); |
2880 DCHECK_LE(start, end); | 2884 DCHECK_LE(start, end); |
2881 DCHECK_LE(end, array->length_value()); | 2885 DCHECK_LE(end, array->length_value()); |
2882 | 2886 |
2883 DisallowHeapAllocation no_gc; | 2887 DisallowHeapAllocation no_gc; |
2884 BackingStore* elements = BackingStore::cast(receiver->elements()); | 2888 BackingStore* elements = BackingStore::cast(receiver->elements()); |
2885 ctype* data = static_cast<ctype*>(elements->DataPtr()); | 2889 ctype* data = static_cast<ctype*>(elements->DataPtr()); |
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3976 insertion_index += len; | 3980 insertion_index += len; |
3977 } | 3981 } |
3978 | 3982 |
3979 DCHECK_EQ(insertion_index, result_len); | 3983 DCHECK_EQ(insertion_index, result_len); |
3980 return result_array; | 3984 return result_array; |
3981 } | 3985 } |
3982 | 3986 |
3983 ElementsAccessor** ElementsAccessor::elements_accessors_ = NULL; | 3987 ElementsAccessor** ElementsAccessor::elements_accessors_ = NULL; |
3984 } // namespace internal | 3988 } // namespace internal |
3985 } // namespace v8 | 3989 } // namespace v8 |
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