JavaScriptCore-1218.tar.gz

[apple/javascriptcore.git] / runtime / JSSymbolTableObject.cpp

diff --git a/runtime/JSSymbolTableObject.cpp b/runtime/JSSymbolTableObject.cpp
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+/*
+ * Copyright (C) 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. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 "JSSymbolTableObject.h"
+
+#include "JSActivation.h"
+#include "JSGlobalObject.h"
+#include "JSNameScope.h"
+#include "Operations.h"
+#include "PropertyNameArray.h"
+
+namespace JSC {
+
+void JSSymbolTableObject::visitChildren(JSCell* cell, SlotVisitor& visitor)
+{
+    JSSymbolTableObject* thisObject = jsCast<JSSymbolTableObject*>(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_symbolTable);
+}
+
+bool JSSymbolTableObject::deleteProperty(JSCell* cell, ExecState* exec, PropertyName propertyName)
+{
+    JSSymbolTableObject* thisObject = jsCast<JSSymbolTableObject*>(cell);
+    if (thisObject->symbolTable()->contains(propertyName.publicName()))
+        return false;
+
+    return JSObject::deleteProperty(thisObject, exec, propertyName);
+}
+
+void JSSymbolTableObject::getOwnNonIndexPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
+{
+    JSSymbolTableObject* thisObject = jsCast<JSSymbolTableObject*>(object);
+    SymbolTable::const_iterator end = thisObject->symbolTable()->end();
+    for (SymbolTable::const_iterator it = thisObject->symbolTable()->begin(); it != end; ++it) {
+        if (!(it->value.getAttributes() & DontEnum) || (mode == IncludeDontEnumProperties))
+            propertyNames.add(Identifier(exec, it->key.get()));
+    }
+    
+    JSObject::getOwnNonIndexPropertyNames(thisObject, exec, propertyNames, mode);
+}
+
+void JSSymbolTableObject::putDirectVirtual(JSObject*, ExecState*, PropertyName, JSValue, unsigned)
+{
+    RELEASE_ASSERT_NOT_REACHED();
+}
+
+} // namespace JSC