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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/bootstrapper.h" | 7 #include "src/bootstrapper.h" |
8 #include "src/debug.h" | 8 #include "src/debug.h" |
9 #include "src/scopeinfo.h" | 9 #include "src/scopeinfo.h" |
10 | 10 |
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135 (context->IsFunctionContext() && context->has_extension())) { | 135 (context->IsFunctionContext() && context->has_extension())) { |
136 Handle<JSReceiver> object( | 136 Handle<JSReceiver> object( |
137 JSReceiver::cast(context->extension()), isolate); | 137 JSReceiver::cast(context->extension()), isolate); |
138 // Context extension objects needs to behave as if they have no | 138 // Context extension objects needs to behave as if they have no |
139 // prototype. So even if we want to follow prototype chains, we need | 139 // prototype. So even if we want to follow prototype chains, we need |
140 // to only do a local lookup for context extension objects. | 140 // to only do a local lookup for context extension objects. |
141 Maybe<PropertyAttributes> maybe; | 141 Maybe<PropertyAttributes> maybe; |
142 if ((flags & FOLLOW_PROTOTYPE_CHAIN) == 0 || | 142 if ((flags & FOLLOW_PROTOTYPE_CHAIN) == 0 || |
143 object->IsJSContextExtensionObject()) { | 143 object->IsJSContextExtensionObject()) { |
144 maybe = JSReceiver::GetOwnPropertyAttributes(object, name); | 144 maybe = JSReceiver::GetOwnPropertyAttributes(object, name); |
145 } else if (context->IsWithContext()) { | 145 } else if (FLAG_harmony_unscopables && context->IsWithContext()) { |
146 LookupIterator it(object, name); | 146 LookupIterator it(object, name); |
147 maybe = UnscopableLookup(&it); | 147 maybe = UnscopableLookup(&it); |
148 } else { | 148 } else { |
149 maybe = JSReceiver::GetPropertyAttributes(object, name); | 149 maybe = JSReceiver::GetPropertyAttributes(object, name); |
150 } | 150 } |
151 | 151 |
152 if (!maybe.has_value) return Handle<Object>(); | 152 if (!maybe.has_value) return Handle<Object>(); |
153 DCHECK(!isolate->has_pending_exception()); | 153 DCHECK(!isolate->has_pending_exception()); |
154 *attributes = maybe.value; | 154 *attributes = maybe.value; |
155 | 155 |
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409 bool Context::IsBootstrappingOrGlobalObject(Isolate* isolate, Object* object) { | 409 bool Context::IsBootstrappingOrGlobalObject(Isolate* isolate, Object* object) { |
410 // During bootstrapping we allow all objects to pass as global | 410 // During bootstrapping we allow all objects to pass as global |
411 // objects. This is necessary to fix circular dependencies. | 411 // objects. This is necessary to fix circular dependencies. |
412 return isolate->heap()->gc_state() != Heap::NOT_IN_GC || | 412 return isolate->heap()->gc_state() != Heap::NOT_IN_GC || |
413 isolate->bootstrapper()->IsActive() || | 413 isolate->bootstrapper()->IsActive() || |
414 object->IsGlobalObject(); | 414 object->IsGlobalObject(); |
415 } | 415 } |
416 #endif | 416 #endif |
417 | 417 |
418 } } // namespace v8::internal | 418 } } // namespace v8::internal |
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