1/*
2 * Copyright (C) 2006, 2007 Apple Computer, 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#include "config.h"
27#include "JSStringRefCF.h"
28
29#include "APICast.h"
30#include "InitializeThreading.h"
31#include "JSStringRef.h"
32#include "OpaqueJSString.h"
33#include <runtime/UString.h>
34#include <runtime/JSValue.h>
35#include <wtf/OwnArrayPtr.h>
36
37JSStringRef JSStringCreateWithCFString(CFStringRef string)
38{
39    JSC::initializeThreading();
40
41    // We cannot use CFIndex here since CFStringGetLength can return values larger than
42    // it can hold.  (<rdar://problem/6806478>)
43    size_t length = CFStringGetLength(string);
44    if (length) {
45        OwnArrayPtr<UniChar> buffer(new UniChar[length]);
46        CFStringGetCharacters(string, CFRangeMake(0, length), buffer.get());
47        COMPILE_ASSERT(sizeof(UniChar) == sizeof(UChar), unichar_and_uchar_must_be_same_size);
48        return OpaqueJSString::create(reinterpret_cast<UChar*>(buffer.get()), length).releaseRef();
49    } else {
50        return OpaqueJSString::create(0, 0).releaseRef();
51    }
52}
53
54CFStringRef JSStringCopyCFString(CFAllocatorRef alloc, JSStringRef string)
55{
56    return CFStringCreateWithCharacters(alloc, reinterpret_cast<const UniChar*>(string->characters()), string->length());
57}
58