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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium 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 "config.h" | 5 #include "config.h" |
6 #include "core/dom/DOMDataView.h" | 6 #include "core/dom/DOMDataView.h" |
7 | 7 |
8 #include "bindings/core/v8/DOMDataStore.h" | 8 #include "bindings/core/v8/DOMDataStore.h" |
9 #include "bindings/core/v8/V8ArrayBuffer.h" | 9 #include "bindings/core/v8/V8ArrayBuffer.h" |
10 #include "platform/CheckedInt.h" | 10 #include "platform/CheckedInt.h" |
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57 v8::Local<v8::Object> DOMDataView::wrap(v8::Isolate* isolate, v8::Local<v8::Obje
ct> creationContext) | 57 v8::Local<v8::Object> DOMDataView::wrap(v8::Isolate* isolate, v8::Local<v8::Obje
ct> creationContext) |
58 { | 58 { |
59 // It's possible that no one except for the new wrapper owns this object at | 59 // It's possible that no one except for the new wrapper owns this object at |
60 // this moment, so we have to prevent GC to collect this object until the | 60 // this moment, so we have to prevent GC to collect this object until the |
61 // object gets associated with the wrapper. | 61 // object gets associated with the wrapper. |
62 RefPtr<DOMDataView> protect(this); | 62 RefPtr<DOMDataView> protect(this); |
63 | 63 |
64 ASSERT(!DOMDataStore::containsWrapper(this, isolate)); | 64 ASSERT(!DOMDataStore::containsWrapper(this, isolate)); |
65 | 65 |
66 const WrapperTypeInfo* wrapperTypeInfo = this->wrapperTypeInfo(); | 66 const WrapperTypeInfo* wrapperTypeInfo = this->wrapperTypeInfo(); |
67 v8::Local<v8::Value> v8Buffer = toV8(buffer(), creationContext, isolate); | 67 v8::Local<v8::Value> v8Buffer = toV8(bufferOrNull(), creationContext, isolat
e); |
68 if (v8Buffer.IsEmpty()) | 68 if (v8Buffer.IsEmpty()) |
69 return v8::Local<v8::Object>(); | 69 return v8::Local<v8::Object>(); |
70 ASSERT(v8Buffer->IsArrayBuffer()); | 70 ASSERT(v8Buffer->IsArrayBuffer()); |
71 | 71 |
72 v8::Local<v8::Object> wrapper = v8::DataView::New(v8Buffer.As<v8::ArrayBuffe
r>(), byteOffset(), byteLength()); | 72 v8::Local<v8::Object> wrapper = v8::DataView::New(v8Buffer.As<v8::ArrayBuffe
r>(), byteOffset(), byteLength()); |
73 | 73 |
74 return associateWithWrapper(isolate, wrapperTypeInfo, wrapper); | 74 return associateWithWrapper(isolate, wrapperTypeInfo, wrapper); |
75 } | 75 } |
76 | 76 |
77 } // namespace blink | 77 } // namespace blink |
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