| /* |
| * Copyright (C) 2008, 2009, 2012 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 "JSNameScope.h" |
| |
| #include "Error.h" |
| |
| namespace JSC { |
| |
| const ClassInfo JSNameScope::s_info = { "NameScope", Base::s_classinfo(), 0, 0, CREATE_METHOD_TABLE(JSNameScope) }; |
| |
| void JSNameScope::visitChildren(JSCell* cell, SlotVisitor& visitor) |
| { |
| JSNameScope* thisObject = jsCast<JSNameScope*>(cell); |
| ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info); |
| COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag); |
| ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren()); |
| |
| Base::visitChildren(thisObject, visitor); |
| visitor.append(&thisObject->m_registerStore); |
| } |
| |
| JSObject* JSNameScope::toThisObject(JSCell*, ExecState* exec) |
| { |
| return exec->globalThisValue(); |
| } |
| |
| void JSNameScope::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot) |
| { |
| JSNameScope* thisObject = jsCast<JSNameScope*>(cell); |
| if (slot.isStrictMode()) { |
| // Double lookup in strict mode, but this only occurs when |
| // a) indirectly writing to an exception slot |
| // b) writing to a function expression name |
| // (a) is unlikely, and (b) is an error. |
| // Also with a single entry the symbol table lookup should simply be |
| // a pointer compare. |
| PropertySlot slot; |
| bool isWritable = true; |
| symbolTableGet(thisObject, propertyName, slot, isWritable); |
| if (!isWritable) { |
| throwError(exec, createTypeError(exec, GetStrictModeReadonlyPropertyWriteError())); |
| return; |
| } |
| } |
| if (symbolTablePut(thisObject, exec, propertyName, value, slot.isStrictMode())) |
| return; |
| |
| ASSERT_NOT_REACHED(); |
| } |
| |
| bool JSNameScope::getOwnPropertySlot(JSCell* cell, ExecState*, PropertyName propertyName, PropertySlot& slot) |
| { |
| return symbolTableGet(jsCast<JSNameScope*>(cell), propertyName, slot); |
| } |
| |
| } // namespace JSC |