| // -*- mode: c++; c-basic-offset: 4 -*- |
| /* |
| * Copyright (C) 2008 Apple 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. |
| */ |
| |
| #ifndef PutPropertySlot_h |
| #define PutPropertySlot_h |
| |
| #include <wtf/Assertions.h> |
| |
| namespace JSC { |
| |
| class JSObject; |
| class JSFunction; |
| |
| class PutPropertySlot { |
| public: |
| enum Type { Uncachable, ExistingProperty, NewProperty }; |
| |
| PutPropertySlot(bool isStrictMode = false) |
| : m_type(Uncachable) |
| , m_base(0) |
| , m_isStrictMode(isStrictMode) |
| { |
| } |
| |
| void setExistingProperty(JSObject* base, PropertyOffset offset) |
| { |
| m_type = ExistingProperty; |
| m_base = base; |
| m_offset = offset; |
| } |
| |
| void setNewProperty(JSObject* base, PropertyOffset offset) |
| { |
| m_type = NewProperty; |
| m_base = base; |
| m_offset = offset; |
| } |
| |
| Type type() const { return m_type; } |
| JSObject* base() const { return m_base; } |
| |
| bool isStrictMode() const { return m_isStrictMode; } |
| bool isCacheable() const { return m_type != Uncachable; } |
| PropertyOffset cachedOffset() const |
| { |
| ASSERT(isCacheable()); |
| return m_offset; |
| } |
| |
| private: |
| Type m_type; |
| JSObject* m_base; |
| PropertyOffset m_offset; |
| bool m_isStrictMode; |
| }; |
| |
| } // namespace JSC |
| |
| #endif // PutPropertySlot_h |
