90 lines
3.5 KiB
Java
90 lines
3.5 KiB
Java
/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Rhino code, released
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* May 6, 1999.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1997-2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* the GNU General Public License Version 2 or later (the "GPL"), in which
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* case the provisions of the GPL are applicable instead of those above. If
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* you wish to allow use of your version of this file only under the terms of
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* the GPL and not to allow others to use your version of this file under the
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* MPL, indicate your decision by deleting the provisions above and replacing
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* them with the notice and other provisions required by the GPL. If you do
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* not delete the provisions above, a recipient may use your version of this
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* file under either the MPL or the GPL.
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*
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* ***** END LICENSE BLOCK ***** */
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package org.mozilla.javascript.jdk15;
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import java.lang.reflect.Member;
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import java.lang.reflect.Method;
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import java.lang.reflect.Constructor;
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import java.util.Iterator;
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import org.mozilla.javascript.*;
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public class VMBridge_jdk15 extends org.mozilla.javascript.jdk13.VMBridge_jdk13
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{
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public VMBridge_jdk15() throws SecurityException, InstantiationException {
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try {
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// Just try and see if we can access the isVarArgs method.
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// We want to fail loading if the method does not exist
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// so that we can load a bridge to an older JDK instead.
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Method.class.getMethod("isVarArgs", (Class[]) null);
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} catch (NoSuchMethodException e) {
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// Throw a fitting exception that is handled by
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// org.mozilla.javascript.Kit.newInstanceOrNull:
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throw new InstantiationException(e.getMessage());
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}
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}
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@Override
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public boolean isVarArgs(Member member) {
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if (member instanceof Method)
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return ((Method) member).isVarArgs();
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else if (member instanceof Constructor)
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return ((Constructor<?>) member).isVarArgs();
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else
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return false;
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}
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/**
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* If "obj" is a java.util.Iterator or a java.lang.Iterable, return a
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* wrapping as a JavaScript Iterator. Otherwise, return null.
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* This method is in VMBridge since Iterable is a JDK 1.5 addition.
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*/
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@Override
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public Iterator<?> getJavaIterator(Context cx, Scriptable scope, Object obj) {
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if (obj instanceof Wrapper) {
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Object unwrapped = ((Wrapper) obj).unwrap();
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Iterator<?> iterator = null;
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if (unwrapped instanceof Iterator)
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iterator = (Iterator<?>) unwrapped;
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if (unwrapped instanceof Iterable)
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iterator = ((Iterable<?>)unwrapped).iterator();
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return iterator;
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}
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return null;
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}
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}
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