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      1 /*
      2  * Copyright (C) 2010 Google 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  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 [
     27     Custom=Wrap,
     28     CustomConstructor(ArrayBuffer buffer, optional unsigned long byteOffset, optional unsigned long byteLength),
     29     Exposed=(Window,Worker),
     30     TypeChecking=Interface,
     31 ] interface DataView : ArrayBufferView {
     32     // All these methods raise an exception if they would read or write beyond the end of the view.
     33 
     34     [RaisesException] byte getInt8(unsigned long byteOffset);
     35     [RaisesException] octet getUint8(unsigned long byteOffset);
     36 
     37     [RaisesException] short getInt16(unsigned long byteOffset, optional boolean littleEndian);
     38     [RaisesException] unsigned short getUint16(unsigned long byteOffset, optional boolean littleEndian);
     39     [RaisesException] long getInt32(unsigned long byteOffset, optional boolean littleEndian);
     40     [RaisesException] unsigned long getUint32(unsigned long byteOffset, optional boolean littleEndian);
     41 
     42     // Use custom code to handle NaN case for JSC.
     43     [RaisesException] float getFloat32(unsigned long byteOffset, optional boolean littleEndian);
     44     [RaisesException] double getFloat64(unsigned long byteOffset, optional boolean littleEndian);
     45 
     46     [RaisesException] void setInt8(unsigned long byteOffset, byte value);
     47     [RaisesException] void setUint8(unsigned long byteOffset, octet value);
     48 
     49     [RaisesException] void setInt16(unsigned long byteOffset, short value, optional boolean littleEndian);
     50     [RaisesException] void setUint16(unsigned long byteOffset, unsigned short value, optional boolean littleEndian);
     51     [RaisesException] void setInt32(unsigned long byteOffset, long value, optional boolean littleEndian);
     52     [RaisesException] void setUint32(unsigned long byteOffset, unsigned long value, optional boolean littleEndian);
     53     [RaisesException] void setFloat32(unsigned long byteOffset, float value, optional boolean littleEndian);
     54     [RaisesException] void setFloat64(unsigned long byteOffset, double value, optional boolean littleEndian);
     55 };
     56