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 <runtime/UString.h> 30 31 namespace JSC { 32 class Identifier; 33 class JSGlobalData; 34 } 35 36 struct OpaqueJSString : public ThreadSafeShared<OpaqueJSString> { 37 38 static PassRefPtr<OpaqueJSString> create() // null 39 { 40 return adoptRef(new OpaqueJSString); 41 } 42 43 static PassRefPtr<OpaqueJSString> create(const UChar* characters, unsigned length) 44 { 45 return adoptRef(new OpaqueJSString(characters, length)); 46 } 47 48 static PassRefPtr<OpaqueJSString> create(const JSC::UString&); 49 50 UChar* characters() { return this ? m_characters : 0; } 51 unsigned length() { return this ? m_length : 0; } 52 53 JSC::UString ustring() const; 54 JSC::Identifier identifier(JSC::JSGlobalData*) const; 55 56 private: 57 friend class WTF::ThreadSafeShared<OpaqueJSString>; 58 59 OpaqueJSString() 60 : m_characters(0) 61 , m_length(0) 62 { 63 } 64 65 OpaqueJSString(const UChar* characters, unsigned length) 66 : m_length(length) 67 { 68 m_characters = new UChar[length]; 69 memcpy(m_characters, characters, length * sizeof(UChar)); 70 } 71 72 ~OpaqueJSString() 73 { 74 delete[] m_characters; 75 } 76 77 UChar* m_characters; 78 unsigned m_length; 79 }; 80 81 #endif 82
