01: /* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
02: *
03: * ***** BEGIN LICENSE BLOCK *****
04: * Version: MPL 1.1/GPL 2.0
05: *
06: * The contents of this file are subject to the Mozilla Public License Version
07: * 1.1 (the "License"); you may not use this file except in compliance with
08: * the License. You may obtain a copy of the License at
09: * http://www.mozilla.org/MPL/
10: *
11: * Software distributed under the License is distributed on an "AS IS" basis,
12: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13: * for the specific language governing rights and limitations under the
14: * License.
15: *
16: * The Original Code is Rhino code, released
17: * May 6, 1999.
18: *
19: * The Initial Developer of the Original Code is
20: * Netscape Communications Corporation.
21: * Portions created by the Initial Developer are Copyright (C) 1997-2000
22: * the Initial Developer. All Rights Reserved.
23: *
24: * Contributor(s):
25: *
26: * Alternatively, the contents of this file may be used under the terms of
27: * the GNU General Public License Version 2 or later (the "GPL"), in which
28: * case the provisions of the GPL are applicable instead of those above. If
29: * you wish to allow use of your version of this file only under the terms of
30: * the GPL and not to allow others to use your version of this file under the
31: * MPL, indicate your decision by deleting the provisions above and replacing
32: * them with the notice and other provisions required by the GPL. If you do
33: * not delete the provisions above, a recipient may use your version of this
34: * file under either the MPL or the GPL.
35: *
36: * ***** END LICENSE BLOCK ***** */
37:
38: package org.mozilla.javascript.jdk15;
39:
40: import java.lang.reflect.Member;
41: import java.lang.reflect.Method;
42: import java.lang.reflect.Constructor;
43: import java.util.Iterator;
44: import org.mozilla.javascript.*;
45:
46: public class VMBridge_jdk15 extends
47: org.mozilla.javascript.jdk13.VMBridge_jdk13 {
48: public VMBridge_jdk15() throws SecurityException,
49: InstantiationException {
50: try {
51: // Just try and see if we can access the isVarArgs method.
52: // We want to fail loading if the method does not exist
53: // so that we can load a bridge to an older JDK instead.
54: Method.class.getMethod("isVarArgs", (Class[]) null);
55: } catch (NoSuchMethodException e) {
56: // Throw a fitting exception that is handled by
57: // org.mozilla.javascript.Kit.newInstanceOrNull:
58: throw new InstantiationException(e.getMessage());
59: }
60: }
61:
62: public boolean isVarArgs(Member member) {
63: if (member instanceof Method)
64: return ((Method) member).isVarArgs();
65: else if (member instanceof Constructor)
66: return ((Constructor) member).isVarArgs();
67: else
68: return false;
69: }
70:
71: /**
72: * If "obj" is a java.util.Iterator or a java.lang.Iterable, return a
73: * wrapping as a JavaScript Iterator. Otherwise, return null.
74: * This method is in VMBridge since Iterable is a JDK 1.5 addition.
75: */
76: public Iterator getJavaIterator(Context cx, Scriptable scope,
77: Object obj) {
78: if (obj instanceof Wrapper) {
79: Object unwrapped = ((Wrapper) obj).unwrap();
80: Iterator iterator = null;
81: if (unwrapped instanceof Iterator)
82: iterator = (Iterator) unwrapped;
83: if (unwrapped instanceof Iterable)
84: iterator = ((Iterable) unwrapped).iterator();
85: return iterator;
86: }
87: return null;
88: }
89: }
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