1/* 2 * Copyright (C) 2006, 2007 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#include "config.h" 27#include "JSStringRefCF.h" 28 29#include "APICast.h" 30#include "InitializeThreading.h" 31#include "JSCJSValue.h" 32#include "JSStringRef.h" 33#include "OpaqueJSString.h" 34#include <wtf/StdLibExtras.h> 35 36JSStringRef JSStringCreateWithCFString(CFStringRef string) 37{ 38 JSC::initializeThreading(); 39 40 // We cannot use CFIndex here since CFStringGetLength can return values larger than 41 // it can hold. (<rdar://problem/6806478>) 42 size_t length = CFStringGetLength(string); 43 if (!length) 44 return OpaqueJSString::create(reinterpret_cast<const LChar*>(""), 0).leakRef(); 45 46 Vector<LChar, 1024> lcharBuffer(length); 47 CFIndex usedBufferLength; 48 CFIndex convertedSize = CFStringGetBytes(string, CFRangeMake(0, length), kCFStringEncodingISOLatin1, 0, false, lcharBuffer.data(), length, &usedBufferLength); 49 if (static_cast<size_t>(convertedSize) == length && static_cast<size_t>(usedBufferLength) == length) 50 return OpaqueJSString::create(lcharBuffer.data(), length).leakRef(); 51 52 auto buffer = std::make_unique<UniChar[]>(length); 53 CFStringGetCharacters(string, CFRangeMake(0, length), buffer.get()); 54 static_assert(sizeof(UniChar) == sizeof(UChar), "UniChar and UChar must be same size"); 55 return OpaqueJSString::create(reinterpret_cast<UChar*>(buffer.get()), length).leakRef(); 56} 57 58CFStringRef JSStringCopyCFString(CFAllocatorRef allocator, JSStringRef string) 59{ 60 if (!string->length()) 61 return CFSTR(""); 62 63 if (string->is8Bit()) 64 return CFStringCreateWithBytes(allocator, reinterpret_cast<const UInt8*>(string->characters8()), string->length(), kCFStringEncodingISOLatin1, false); 65 66 return CFStringCreateWithCharacters(allocator, reinterpret_cast<const UniChar*>(string->characters16()), string->length()); 67} 68