diff options
Diffstat (limited to 'src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertyDescriptor.cpp')
| -rw-r--r-- | src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertyDescriptor.cpp | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertyDescriptor.cpp b/src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertyDescriptor.cpp deleted file mode 100644 index 558ae28..0000000 --- a/src/3rdparty/javascriptcore/JavaScriptCore/runtime/PropertyDescriptor.cpp +++ /dev/null @@ -1,195 +0,0 @@ -/* - * Copyright (C) 2009 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 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 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 "PropertyDescriptor.h" - -#include "GetterSetter.h" -#include "JSObject.h" -#include "Operations.h" - -namespace JSC { -unsigned PropertyDescriptor::defaultAttributes = (DontDelete << 1) - 1; - -bool PropertyDescriptor::writable() const -{ - ASSERT(!isAccessorDescriptor()); - return !(m_attributes & ReadOnly); -} - -bool PropertyDescriptor::enumerable() const -{ - return !(m_attributes & DontEnum); -} - -bool PropertyDescriptor::configurable() const -{ - return !(m_attributes & DontDelete); -} - -bool PropertyDescriptor::isDataDescriptor() const -{ - return m_value || (m_seenAttributes & WritablePresent); -} - -bool PropertyDescriptor::isGenericDescriptor() const -{ - return !isAccessorDescriptor() && !isDataDescriptor(); -} - -bool PropertyDescriptor::isAccessorDescriptor() const -{ - return m_getter || m_setter; -} - -void PropertyDescriptor::setUndefined() -{ - m_value = jsUndefined(); - m_attributes = ReadOnly | DontDelete | DontEnum; -} - -JSValue PropertyDescriptor::getter() const -{ - ASSERT(isAccessorDescriptor()); - return m_getter; -} - -JSValue PropertyDescriptor::setter() const -{ - ASSERT(isAccessorDescriptor()); - return m_setter; -} - -void PropertyDescriptor::setDescriptor(JSValue value, unsigned attributes) -{ - ASSERT(value); - m_attributes = attributes; - if (attributes & (Getter | Setter)) { - GetterSetter* accessor = asGetterSetter(value); - m_getter = accessor->getter(); - m_setter = accessor->setter(); - ASSERT(m_getter || m_setter); - m_seenAttributes = EnumerablePresent | ConfigurablePresent; - m_attributes &= ~ReadOnly; - } else { - m_value = value; - m_seenAttributes = EnumerablePresent | ConfigurablePresent | WritablePresent; - } -} - -void PropertyDescriptor::setAccessorDescriptor(JSValue getter, JSValue setter, unsigned attributes) -{ - ASSERT(attributes & (Getter | Setter)); - ASSERT(getter || setter); - m_attributes = attributes; - m_getter = getter; - m_setter = setter; - m_attributes &= ~ReadOnly; - m_seenAttributes = EnumerablePresent | ConfigurablePresent; -} - -void PropertyDescriptor::setWritable(bool writable) -{ - if (writable) - m_attributes &= ~ReadOnly; - else - m_attributes |= ReadOnly; - m_seenAttributes |= WritablePresent; -} - -void PropertyDescriptor::setEnumerable(bool enumerable) -{ - if (enumerable) - m_attributes &= ~DontEnum; - else - m_attributes |= DontEnum; - m_seenAttributes |= EnumerablePresent; -} - -void PropertyDescriptor::setConfigurable(bool configurable) -{ - if (configurable) - m_attributes &= ~DontDelete; - else - m_attributes |= DontDelete; - m_seenAttributes |= ConfigurablePresent; -} - -void PropertyDescriptor::setSetter(JSValue setter) -{ - m_setter = setter; - m_attributes |= Setter; - m_attributes &= ~ReadOnly; -} - -void PropertyDescriptor::setGetter(JSValue getter) -{ - m_getter = getter; - m_attributes |= Getter; - m_attributes &= ~ReadOnly; -} - -bool PropertyDescriptor::equalTo(ExecState* exec, const PropertyDescriptor& other) const -{ - if (!other.m_value == m_value || - !other.m_getter == m_getter || - !other.m_setter == m_setter) - return false; - return (!m_value || JSValue::strictEqual(exec, other.m_value, m_value)) && - (!m_getter || JSValue::strictEqual(exec, other.m_getter, m_getter)) && - (!m_setter || JSValue::strictEqual(exec, other.m_setter, m_setter)) && - attributesEqual(other); -} - -bool PropertyDescriptor::attributesEqual(const PropertyDescriptor& other) const -{ - unsigned mismatch = other.m_attributes ^ m_attributes; - unsigned sharedSeen = other.m_seenAttributes & m_seenAttributes; - if (sharedSeen & WritablePresent && mismatch & ReadOnly) - return false; - if (sharedSeen & ConfigurablePresent && mismatch & DontDelete) - return false; - if (sharedSeen & EnumerablePresent && mismatch & DontEnum) - return false; - return true; -} - -unsigned PropertyDescriptor::attributesWithOverride(const PropertyDescriptor& other) const -{ - unsigned mismatch = other.m_attributes ^ m_attributes; - unsigned sharedSeen = other.m_seenAttributes & m_seenAttributes; - unsigned newAttributes = m_attributes & defaultAttributes; - if (sharedSeen & WritablePresent && mismatch & ReadOnly) - newAttributes ^= ReadOnly; - if (sharedSeen & ConfigurablePresent && mismatch & DontDelete) - newAttributes ^= DontDelete; - if (sharedSeen & EnumerablePresent && mismatch & DontEnum) - newAttributes ^= DontEnum; - return newAttributes; -} - -} |