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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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2806 return context->extension()->ReferencesObject(obj); | 2806 return context->extension()->ReferencesObject(obj); |
2807 } | 2807 } |
2808 } | 2808 } |
2809 | 2809 |
2810 // No references to object. | 2810 // No references to object. |
2811 return false; | 2811 return false; |
2812 } | 2812 } |
2813 | 2813 |
2814 | 2814 |
2815 MaybeObject* JSObject::PreventExtensions() { | 2815 MaybeObject* JSObject::PreventExtensions() { |
| 2816 if (IsAccessCheckNeeded() && |
| 2817 !Top::MayNamedAccess(this, Heap::undefined_value(), v8::ACCESS_KEYS)) { |
| 2818 Top::ReportFailedAccessCheck(this, v8::ACCESS_KEYS); |
| 2819 return Heap::false_value(); |
| 2820 } |
| 2821 |
2816 if (IsJSGlobalProxy()) { | 2822 if (IsJSGlobalProxy()) { |
2817 Object* proto = GetPrototype(); | 2823 Object* proto = GetPrototype(); |
2818 if (proto->IsNull()) return this; | 2824 if (proto->IsNull()) return this; |
2819 ASSERT(proto->IsJSGlobalObject()); | 2825 ASSERT(proto->IsJSGlobalObject()); |
2820 return JSObject::cast(proto)->PreventExtensions(); | 2826 return JSObject::cast(proto)->PreventExtensions(); |
2821 } | 2827 } |
2822 | 2828 |
2823 // If there are fast elements we normalize. | 2829 // If there are fast elements we normalize. |
2824 if (HasFastElements()) { | 2830 if (HasFastElements()) { |
2825 Object* ok; | 2831 Object* ok; |
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9985 if (break_point_objects()->IsUndefined()) return 0; | 9991 if (break_point_objects()->IsUndefined()) return 0; |
9986 // Single beak point. | 9992 // Single beak point. |
9987 if (!break_point_objects()->IsFixedArray()) return 1; | 9993 if (!break_point_objects()->IsFixedArray()) return 1; |
9988 // Multiple break points. | 9994 // Multiple break points. |
9989 return FixedArray::cast(break_point_objects())->length(); | 9995 return FixedArray::cast(break_point_objects())->length(); |
9990 } | 9996 } |
9991 #endif | 9997 #endif |
9992 | 9998 |
9993 | 9999 |
9994 } } // namespace v8::internal | 10000 } } // namespace v8::internal |
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