runtime/JSArrayBuffer.h

   1 /*
   2  * Copyright (C) 2013 Apple Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef JSArrayBuffer_h
  27 #define JSArrayBuffer_h
  28
  29 #include "ArrayBuffer.h"
  30 #include "JSObject.h"
  31
  32 namespace JSC {
  33
  34 class JSArrayBuffer : public JSNonFinalObject {
  35 public:
  36     typedef JSNonFinalObject Base;
  37
  38 protected:
  39     JSArrayBuffer(VM&, Structure*, PassRefPtr<ArrayBuffer>);
  40     void finishCreation(VM&);
  41
  42 public:
  43     JS_EXPORT_PRIVATE static JSArrayBuffer* create(VM&, Structure*, PassRefPtr<ArrayBuffer>);
  44
  45     ArrayBuffer* impl() const { return m_impl; }
  46
  47     static Structure* createStructure(VM&, JSGlobalObject*, JSValue prototype);
  48
  49     DECLARE_EXPORT_INFO;
  50
  51 protected:
  52     static bool getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&);
  53     static void put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&);
  54     static bool defineOwnProperty(JSObject*, ExecState*, PropertyName, const PropertyDescriptor&, bool shouldThrow);
  55     static bool deleteProperty(JSCell*, ExecState*, PropertyName);
  56
  57     static void getOwnNonIndexPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
  58
  59     static const unsigned StructureFlags = OverridesGetPropertyNames | OverridesGetOwnPropertySlot | Base::StructureFlags;
  60
  61 private:
  62     ArrayBuffer* m_impl;
  63 };
  64
  65 inline ArrayBuffer* toArrayBuffer(JSValue value)
  66 {
  67     JSArrayBuffer* wrapper = jsDynamicCast<JSArrayBuffer*>(value);
  68     if (!wrapper)
  69         return 0;
  70     return wrapper->impl();
  71 }
  72
  73 } // namespace JSC
  74
  75 #endif // JSArrayBuffer_h
  76