1/* 2 * Copyright (C) 2008 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 COMPUTER, 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 COMPUTER, 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 OpaqueJSString_h 27#define OpaqueJSString_h 28 29#include <wtf/ThreadSafeRefCounted.h> 30#include <wtf/text/WTFString.h> 31 32namespace JSC { 33 class Identifier; 34 class VM; 35} 36 37struct OpaqueJSString : public ThreadSafeRefCounted<OpaqueJSString> { 38 39 static PassRefPtr<OpaqueJSString> create() // null 40 { 41 return adoptRef(new OpaqueJSString); 42 } 43 44 static PassRefPtr<OpaqueJSString> create(const LChar* characters, unsigned length) 45 { 46 return adoptRef(new OpaqueJSString(characters, length)); 47 } 48 49 static PassRefPtr<OpaqueJSString> create(const UChar* characters, unsigned length) 50 { 51 return adoptRef(new OpaqueJSString(characters, length)); 52 } 53 54 JS_EXPORT_PRIVATE static PassRefPtr<OpaqueJSString> create(const String&); 55 56 const UChar* characters() { return !!this ? m_string.characters() : 0; } 57 unsigned length() { return !!this ? m_string.length() : 0; } 58 59 JS_EXPORT_PRIVATE String string() const; 60 JSC::Identifier identifier(JSC::VM*) const; 61#if PLATFORM(QT) 62 QString qString() const { return m_string; } 63#endif 64 65private: 66 friend class WTF::ThreadSafeRefCounted<OpaqueJSString>; 67 68 OpaqueJSString() 69 { 70 } 71 72 OpaqueJSString(const String& string) 73 : m_string(string.isolatedCopy()) 74 { 75 } 76 77 OpaqueJSString(const LChar* characters, unsigned length) 78 { 79 m_string = String(characters, length); 80 } 81 82 OpaqueJSString(const UChar* characters, unsigned length) 83 { 84 m_string = String(characters, length); 85 } 86 87 String m_string; 88}; 89 90#endif 91