KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > jruby > ast > CallNode


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) 2001 Alan Moore <alan_moore@gmx.net>
15  * Copyright (C) 2001-2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
16  * Copyright (C) 2001-2002 Benoit Cerrina <b.cerrina@wanadoo.fr>
17  * Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
18  * Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
19  *
20  * Alternatively, the contents of this file may be used under the terms of
21  * either of the GNU General Public License Version 2 or later (the "GPL"),
22  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
23  * in which case the provisions of the GPL or the LGPL are applicable instead
24  * of those above. If you wish to allow use of your version of this file only
25  * under the terms of either the GPL or the LGPL, and not to allow others to
26  * use your version of this file under the terms of the CPL, indicate your
27  * decision by deleting the provisions above and replace them with the notice
28  * and other provisions required by the GPL or the LGPL. If you do not delete
29  * the provisions above, a recipient may use your version of this file under
30  * the terms of any one of the CPL, the GPL or the LGPL.
31  ***** END LICENSE BLOCK *****/
32 package org.jruby.ast;
33
34 import java.io.IOException JavaDoc;
35 import java.util.List JavaDoc;
36
37 import org.jruby.ast.types.INameNode;
38 import org.jruby.ast.visitor.NodeVisitor;
39 import org.jruby.evaluator.Instruction;
40 import org.jruby.lexer.yacc.ISourcePosition;
41 import org.jruby.runtime.MethodIndex;
42
43 /**
44  * A method or operator call.
45  *
46  * @author jpetersen
47  */
48 public final class CallNode extends Node implements INameNode, IArgumentNode, BlockAcceptingNode {
49     static final long serialVersionUID = -1993752395320088525L;
50
51     private final Node receiverNode;
52     private String JavaDoc name;
53     private Node argsNode;
54     private Node iterNode;
55     public final int index;
56
57     public CallNode(ISourcePosition position, Node receiverNode, String JavaDoc name, Node argsNode) {
58         this(position, receiverNode, name, argsNode, null);
59     }
60     
61     public CallNode(ISourcePosition position, Node receiverNode, String JavaDoc name, Node argsNode,
62             Node iterNode) {
63         super(position, NodeTypes.CALLNODE);
64         this.receiverNode = receiverNode;
65         this.name = name.intern();
66         this.argsNode = argsNode;
67         this.iterNode = iterNode;
68         this.index = MethodIndex.getIndex(this.name);
69     }
70     
71     private void readObject(java.io.ObjectInputStream JavaDoc in) throws IOException JavaDoc, ClassNotFoundException JavaDoc {
72         in.defaultReadObject();
73         
74         // deserialized strings are not interned; intern it now
75 name = name.intern();
76     }
77
78     /**
79      * Accept for the visitor pattern.
80      * @param iVisitor the visitor
81      **/
82     public Instruction accept(NodeVisitor iVisitor) {
83         return iVisitor.visitCallNode(this);
84     }
85     
86     public Node getIterNode() {
87         return iterNode;
88     }
89     
90     public void setIterNode(Node iterNode) {
91         this.iterNode = iterNode;
92     }
93
94     /**
95      * Gets the argsNode representing the method's arguments' value for this call.
96      * @return argsNode
97      */
98     public Node getArgsNode() {
99         return argsNode;
100     }
101
102     /**
103      * Set the argsNode
104      *
105      * @param argsNode set the arguments for this node.
106      */
107     public void setArgsNode(Node argsNode) {
108         this.argsNode = argsNode;
109     }
110
111     /**
112      * Gets the name.
113      * name is the name of the method called
114      * @return name
115      */
116     public String JavaDoc getName() {
117         return name;
118     }
119
120     /**
121      * Gets the receiverNode.
122      * receiverNode is the object on which the method is being called
123      * @return receiverNode
124      */
125     public Node getReceiverNode() {
126         return receiverNode;
127     }
128     
129     public List JavaDoc childNodes() {
130         return Node.createList(receiverNode, argsNode, iterNode);
131     }
132     
133     public String JavaDoc toString() {
134         return "CallNode: " + getName();
135     }
136 }
137
Popular Tags