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Java > Open Source Codes > com > caucho > quercus > program > CompiledMethod_4


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 4 args
41  */
42 abstract public class CompiledMethod_4 extends CompiledMethod {
43   private static final Logger JavaDoc log
44     = Logger.getLogger(CompiledMethod_4.class.getName());
45   private static final L10N L = new L10N(CompiledMethod_4.class);
46
47   private String JavaDoc _name;
48   private Expr _default_0;
49   private Expr _default_1;
50   private Expr _default_2;
51   private Expr _default_3;
52
53   public CompiledMethod_4(String JavaDoc name,
54               Expr default_0,
55               Expr default_1,
56               Expr default_2,
57               Expr default_3)
58   {
59     _name = name;
60     _default_0 = default_0;
61     _default_1 = default_1;
62     _default_2 = default_2;
63     _default_3 = default_3;
64   }
65   
66   /**
67    * Binds the user's arguments to the actual arguments.
68    *
69    * @param args the user's arguments
70    * @return the user arguments augmented by any defaults
71    */
72   public Expr []bindArguments(Env env, Expr fun, Expr []args)
73   {
74     if (args.length != 4)
75       env.warning(L.l("incorrect"));
76
77     return args;
78   }
79
80   /**
81    * Evaluates the method with the given variable arguments.
82    */
83   public Value callMethod(Env env, Value obj, Value []argValues)
84   {
85     switch (argValues.length) {
86     case 0:
87       return callMethod(env,
88             obj,
89             _default_0.eval(env),
90             _default_1.eval(env),
91             _default_2.eval(env),
92             _default_3.eval(env));
93     case 1:
94       return callMethod(env,
95             obj,
96             argValues[0],
97             _default_1.eval(env),
98             _default_2.eval(env),
99             _default_3.eval(env));
100     case 2:
101       return callMethod(env,
102             obj,
103             argValues[0],
104             argValues[1],
105             _default_2.eval(env),
106             _default_3.eval(env));
107     case 3:
108       return callMethod(env,
109             obj,
110             argValues[0],
111             argValues[1],
112             argValues[2],
113             _default_3.eval(env));
114     case 4:
115     default:
116       return callMethod(env,
117             obj,
118             argValues[0],
119             argValues[1],
120             argValues[2],
121             argValues[3]);
122     }
123   }
124
125   abstract public Value callMethod(Env env,
126                    Value obj,
127                    Value a1,
128                    Value a2,
129                    Value a3,
130                    Value a4);
131   
132   public String JavaDoc toString()
133   {
134     return "CompiledMethod_4[" + _name + "]";
135   }
136 }
137
138
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