/*

 * Copyright (C) 2006, 2007 Apple Computer, Inc.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#include "config.h"

#include "JSStringRefCF.h"

#include "APICast.h"

#include "InitializeThreading.h"

#include "JSStringRef.h"

#include "OpaqueJSString.h"

#include <runtime/UString.h>

#include <runtime/JSValue.h>

#include <wtf/OwnArrayPtr.h>

JSStringRef JSStringCreateWithCFString(CFStringRef string)

{

    JSC::initializeThreading();

    // We cannot use CFIndex here since CFStringGetLength can return values larger than

    // it can hold.  (<rdar://problem/6806478>)

    size_t length = CFStringGetLength(string);

    if (length) {

        OwnArrayPtr<UniChar> buffer(new UniChar[length]);

        CFStringGetCharacters(string, CFRangeMake(0, length), buffer.get());

        COMPILE_ASSERT(sizeof(UniChar) == sizeof(UChar), unichar_and_uchar_must_be_same_size);

        return OpaqueJSString::create(reinterpret_cast<UChar*>(buffer.get()), length).releaseRef();

    } else {

        return OpaqueJSString::create(0, 0).releaseRef();

    }

}

CFStringRef JSStringCopyCFString(CFAllocatorRef alloc, JSStringRef string)

{

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

}