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Java > Open Source Codes > com > caucho > quercus > program > CompiledFunction_2


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.quercus.program;
31
32 import com.caucho.quercus.env.Env;
33 import com.caucho.quercus.env.Value;
34 import com.caucho.quercus.expr.Expr;
35 import com.caucho.util.L10N;
36
37 import java.util.logging.Logger JavaDoc;
38
39 /**
40  * Represents a compiled function with 2 args
41  */
42 abstract public class CompiledFunction_2 extends CompiledFunction {
43   private static final Logger JavaDoc log
44     = Logger.getLogger(CompiledFunction_2.class.getName());
45   private static final L10N L = new L10N(CompiledFunction_2.class);
46
47   private String JavaDoc _name;
48   private Expr _default_0;
49   private Expr _default_1;
50
51   public CompiledFunction_2(String JavaDoc name, Expr default_0, Expr default_1)
52   {
53     _name = name;
54     _default_0 = default_0;
55     _default_1 = default_1;
56   }
57
58   /**
59    * Binds the user's arguments to the actual arguments.
60    *
61    * @param args the user's arguments
62    * @return the user arguments augmented by any defaults
63    */
64   public Expr []bindArguments(Env env, Expr fun, Expr []args)
65   {
66     if (args.length > 2)
67       log.fine(L.l(env.getLocation().getMessagePrefix() + "incorrect number of arguments" + env.getFunctionLocation()));
68
69     return args;
70   }
71
72   public Value call(Env env, Value []argValues)
73   {
74     switch (argValues.length) {
75     case 0:
76       return call(env, _default_0.eval(env), _default_1.eval(env));
77     case 1:
78       return call(env, argValues[0], _default_1.eval(env));
79     case 2:
80     default:
81       return call(env, argValues[0], argValues[1]);
82     }
83   }
84
85   public Value call(Env env)
86   {
87     return call(env, _default_0.eval(env), _default_1.eval(env));
88   }
89
90   public Value call(Env env, Value a0)
91   {
92     return call(env, a0, _default_1.eval(env));
93   }
94
95   public String JavaDoc toString()
96   {
97     return "CompiledFunction_1[" + _name + "]";
98   }
99 }
100
101
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