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+/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Rhino code, released
+ * May 6, 1999.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1997-1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Norris Boyd
+ * Igor Bukanov
+ * Frank Mitchell
+ * Mike Shaver
+ * Kemal Bayram
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * the GNU General Public License Version 2 or later (the "GPL"), in which
+ * case the provisions of the GPL are applicable instead of those above. If
+ * you wish to allow use of your version of this file only under the terms of
+ * the GPL and not to allow others to use your version of this file under the
+ * MPL, indicate your decision by deleting the provisions above and replacing
+ * them with the notice and other provisions required by the GPL. If you do
+ * not delete the provisions above, a recipient may use your version of this
+ * file under either the MPL or the GPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+package org.mozilla.javascript;
+
+import java.lang.reflect.Array;
+
+/**
+ * This class reflects Java arrays into the JavaScript environment.
+ *
+ * @author Mike Shaver
+ * @see NativeJavaClass
+ * @see NativeJavaObject
+ * @see NativeJavaPackage
+ */
+
+public class NativeJavaArray extends NativeJavaObject
+{
+ static final long serialVersionUID = -924022554283675333L;
+
+ public String getClassName() {
+ return "JavaArray";
+ }
+
+ public static NativeJavaArray wrap(Scriptable scope, Object array) {
+ return new NativeJavaArray(scope, array);
+ }
+
+ public Object unwrap() {
+ return array;
+ }
+
+ public NativeJavaArray(Scriptable scope, Object array) {
+ super(scope, null, ScriptRuntime.ObjectClass);
+ Class cl = array.getClass();
+ if (!cl.isArray()) {
+ throw new RuntimeException("Array expected");
+ }
+ this.array = array;
+ this.length = Array.getLength(array);
+ this.cls = cl.getComponentType();
+ }
+
+ public boolean has(String id, Scriptable start) {
+ return id.equals("length") || super.has(id, start);
+ }
+
+ public boolean has(int index, Scriptable start) {
+ return 0 <= index && index < length;
+ }
+
+ public Object get(String id, Scriptable start) {
+ if (id.equals("length"))
+ return new Integer(length);
+ Object result = super.get(id, start);
+ if (result == NOT_FOUND &&
+ !ScriptableObject.hasProperty(getPrototype(), id))
+ {
+ throw Context.reportRuntimeError2(
+ "msg.java.member.not.found", array.getClass().getName(), id);
+ }
+ return result;
+ }
+
+ public Object get(int index, Scriptable start) {
+ if (0 <= index && index < length) {
+ Context cx = Context.getContext();
+ Object obj = Array.get(array, index);
+ return cx.getWrapFactory().wrap(cx, this, obj, cls);
+ }
+ return Undefined.instance;
+ }
+
+ public void put(String id, Scriptable start, Object value) {
+ // Ignore assignments to "length"--it's readonly.
+ if (!id.equals("length"))
+ throw Context.reportRuntimeError1(
+ "msg.java.array.member.not.found", id);
+ }
+
+ public void put(int index, Scriptable start, Object value) {
+ if (0 <= index && index < length) {
+ Array.set(array, index, Context.jsToJava(value, cls));
+ }
+ else {
+ throw Context.reportRuntimeError2(
+ "msg.java.array.index.out.of.bounds", String.valueOf(index),
+ String.valueOf(length - 1));
+ }
+ }
+
+ public Object getDefaultValue(Class hint) {
+ if (hint == null || hint == ScriptRuntime.StringClass)
+ return array.toString();
+ if (hint == ScriptRuntime.BooleanClass)
+ return Boolean.TRUE;
+ if (hint == ScriptRuntime.NumberClass)
+ return ScriptRuntime.NaNobj;
+ return this;
+ }
+
+ public Object[] getIds() {
+ Object[] result = new Object[length];
+ int i = length;
+ while (--i >= 0)
+ result[i] = new Integer(i);
+ return result;
+ }
+
+ public boolean hasInstance(Scriptable value) {
+ if (!(value instanceof Wrapper))
+ return false;
+ Object instance = ((Wrapper)value).unwrap();
+ return cls.isInstance(instance);
+ }
+
+ public Scriptable getPrototype() {
+ if (prototype == null) {
+ prototype =
+ ScriptableObject.getClassPrototype(this.getParentScope(),
+ "Array");
+ }
+ return prototype;
+ }
+
+ Object array;
+ int length;
+ Class cls;
+}