KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > jruby > internal > runtime > methods > EvaluateCallable


1 /***** BEGIN LICENSE BLOCK *****
2  * Version: CPL 1.0/GPL 2.0/LGPL 2.1
3  *
4  * The contents of this file are subject to the Common Public
5  * License Version 1.0 (the "License"); you may not use this file
6  * except in compliance with the License. You may obtain a copy of
7  * the License at http://www.eclipse.org/legal/cpl-v10.html
8  *
9  * Software distributed under the License is distributed on an "AS
10  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
11  * implied. See the License for the specific language governing
12  * rights and limitations under the License.
13  *
14  * Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
15  * Copyright (C) 2002-2004 Jan Arne Petersen <jpetersen@uni-bonn.de>
16  * Copyright (C) 2004-2005 Thomas E Enebo <enebo@acm.org>
17  *
18  * Alternatively, the contents of this file may be used under the terms of
19  * either of the GNU General Public License Version 2 or later (the "GPL"),
20  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
21  * in which case the provisions of the GPL or the LGPL are applicable instead
22  * of those above. If you wish to allow use of your version of this file only
23  * under the terms of either the GPL or the LGPL, and not to allow others to
24  * use your version of this file under the terms of the CPL, indicate your
25  * decision by deleting the provisions above and replace them with the notice
26  * and other provisions required by the GPL or the LGPL. If you do not delete
27  * the provisions above, a recipient may use your version of this file under
28  * the terms of any one of the CPL, the GPL or the LGPL.
29  ***** END LICENSE BLOCK *****/
30 package org.jruby.internal.runtime.methods;
31
32 import org.jruby.ast.Node;
33 import org.jruby.evaluator.EvaluationState;
34 import org.jruby.runtime.Arity;
35 import org.jruby.runtime.Block;
36 import org.jruby.runtime.ICallable;
37 import org.jruby.runtime.ThreadContext;
38 import org.jruby.runtime.builtin.IRubyObject;
39
40 /**
41  *
42  * @author jpetersen
43  */
44 public class EvaluateCallable extends AbstractCallable {
45     private final Node node;
46     private final Arity arity;
47
48     private EvaluateCallable(Node node, Arity arity) {
49         this.node = node;
50         this.arity = arity;
51     }
52
53     public EvaluateCallable(Node node, Node vars) {
54         this(node, Arity.procArityOf(vars));
55     }
56
57     public IRubyObject call(ThreadContext context, IRubyObject self, IRubyObject[] args, Block block) {
58         return EvaluationState.eval(context.getRuntime(), context, node, self, block);
59     }
60
61     public Node getNode() {
62         return node;
63     }
64
65     public Arity getArity() {
66         return arity;
67     }
68     
69     public ICallable dup() {
70         return new EvaluateCallable(node, arity);
71     }
72 }
73
Popular Tags