/*
* Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
package jdk.nashorn.internal.runtime;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import jdk.nashorn.api.scripting.JSObject;
import jdk.nashorn.api.scripting.ScriptObjectMirror;
import jdk.nashorn.internal.objects.Global;
/**
* A {@link ListAdapter} that also implements {@link JSObject}. Named {@code JSONListAdapter} as it is used as a
* {@code JSObject} implementing the {@link List} interface, which is the expected interface to be implemented by
* JSON-parsed arrays when they are handled in Java. We aren't implementing {@link JSObject} on {@link ListAdapter}
* directly since that'd have implications for other uses of list adapter (e.g. interferences of JSObject default
* value calculation vs. List's {@code toString()} etc.)
*/
public final class JSONListAdapter extends ListAdapter implements JSObject {
/**
* Creates a new JSON list adapter.
* @param obj the underlying object being exposed as a list.
* @param global the home global of the underlying object.
*/
public JSONListAdapter(final JSObject obj, final Global global) {
super(obj, global);
}
/**
* Unwraps this adapter into its underlying non-JSObject representative.
* @param homeGlobal the home global for unwrapping
* @return either the unwrapped object or this if it should not be unwrapped in the specified global.
*/
public Object unwrap(final Object homeGlobal) {
final Object unwrapped = ScriptObjectMirror.unwrap(obj, homeGlobal);
return unwrapped != obj ? unwrapped : this;
}
@Override
public Object call(final Object thiz, final Object... args) {
return obj.call(thiz, args);
}
@Override
public Object newObject(final Object... args) {
return obj.newObject(args);
}
@Override
public Object eval(final String s) {
return obj.eval(s);
}
@Override
public Object getMember(final String name) {
return obj.getMember(name);
}
@Override
public Object getSlot(final int index) {
return obj.getSlot(index);
}
@Override
public boolean hasMember(final String name) {
return obj.hasMember(name);
}
@Override
public boolean hasSlot(final int slot) {
return obj.hasSlot(slot);
}
@Override
public void removeMember(final String name) {
obj.removeMember(name);
}
@Override
public void setMember(final String name, final Object value) {
obj.setMember(name, value);
}
@Override
public void setSlot(final int index, final Object value) {
obj.setSlot(index, value);
}
@Override
public Set<String> keySet() {
return obj.keySet();
}
@Override
public Collection<Object> values() {
return obj.values();
}
@Override
public boolean isInstance(final Object instance) {
return obj.isInstance(instance);
}
@Override
public boolean isInstanceOf(final Object clazz) {
return obj.isInstanceOf(clazz);
}
@Override
public String getClassName() {
return obj.getClassName();
}
@Override
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