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 

    37 JSStringRef 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 

    54 CFStringRef JSStringCopyCFString(CFAllocatorRef alloc, JSStringRef string)

    55 {

    56     return CFStringCreateWithCharacters(alloc, reinterpret_cast<const UniChar*>(string->characters()), string->length());

    57 }