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Java > Open Source Codes > com > caucho > quercus > program > CompiledMethod_3


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 method with 3 args
41  */
42 abstract public class CompiledMethod_3 extends CompiledMethod {
43   private static final Logger JavaDoc log
44     = Logger.getLogger(CompiledMethod_3.class.getName());
45   private static final L10N L = new L10N(CompiledMethod_3.class);
46
47   private String JavaDoc _name;
48   private Expr _default_0;
49   private Expr _default_1;
50   private Expr _default_2;
51
52   public CompiledMethod_3(String JavaDoc name,
53               Expr default_0,
54               Expr default_1,
55               Expr default_2)
56   {
57     _name = name;
58     _default_0 = default_0;
59     _default_1 = default_1;
60     _default_2 = default_2;
61   }
62   
63   /**
64    * Binds the user's arguments to the actual arguments.
65    *
66    * @param args the user's arguments
67    * @return the user arguments augmented by any defaults
68    */
69   public Expr []bindArguments(Env env, Expr fun, Expr []args)
70   {
71     if (args.length != 3)
72       env.warning(L.l("incorrect"));
73
74     return args;
75   }
76
77   /**
78    * Evaluates the method with the given variable arguments.
79    */
80   public Value callMethod(Env env, Value obj, Value []argValues)
81   {
82     switch (argValues.length) {
83     case 0:
84       return callMethod(env,
85             obj,
86             _default_0.eval(env),
87             _default_1.eval(env),
88             _default_2.eval(env));
89     case 1:
90       return callMethod(env,
91             obj,
92             argValues[0],
93             _default_1.eval(env),
94             _default_2.eval(env));
95     case 2:
96       return callMethod(env,
97             obj,
98             argValues[0],
99             argValues[1],
100             _default_2.eval(env));
101     case 3:
102     default:
103       return callMethod(env,
104             obj,
105             argValues[0],
106             argValues[1],
107             argValues[2]);
108     }
109   }
110   
111   public Value callMethod(Env env, Value obj, Value a1, Value a2)
112   {
113     return callMethod(env, obj, a1, a2, _default_2.eval(env));
114   }
115
116   abstract public Value callMethod(Env env,
117                    Value obj,
118                    Value a1,
119                    Value a2,
120                    Value a3);
121   
122   public String JavaDoc toString()
123   {
124     return "CompiledMethod_3[" + _name + "]";
125   }
126 }
127
128
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