| | 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 | #include "config.h" |
| | 27 | #include "OpaqueJSString.h" |
| | 28 | |
| | 29 | #include <interpreter/CallFrame.h> |
| | 30 | #include <runtime/JSGlobalObject.h> |
| | 31 | #include <runtime/Identifier.h> |
| | 32 | |
| | 33 | using namespace JSC; |
| | 34 | |
| | 35 | PassRefPtr<OpaqueJSString> OpaqueJSString::create(const String& string) |
| | 36 | { |
| | 37 | if (!string.isNull()) |
| | 38 | return adoptRef(new OpaqueJSString(string)); |
| | 39 | return 0; |
| | 40 | } |
| | 41 | |
| | 42 | String OpaqueJSString::string() const |
| | 43 | { |
| | 44 | if (!this) |
| | 45 | return String(); |
| | 46 | |
| | 47 | // Return a copy of the wrapped string, because the caller may make it an Identifier. |
| | 48 | return m_string.isolatedCopy(); |
| | 49 | } |
| | 50 | |
| | 51 | Identifier OpaqueJSString::identifier(VM* vm) const |
| | 52 | { |
| | 53 | if (!this || m_string.isNull()) |
| | 54 | return Identifier(); |
| | 55 | |
| | 56 | if (m_string.isEmpty()) |
| | 57 | return Identifier(Identifier::EmptyIdentifier); |
| | 58 | |
| | 59 | if (m_string.is8Bit()) |
| | 60 | return Identifier(vm, m_string.characters8(), m_string.length()); |
| | 61 | |
| | 62 | return Identifier(vm, m_string.characters16(), m_string.length()); |
| | 63 | } |
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