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Java > Open Source Codes > com > caucho > quercus > program > CompiledFunctionRef_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 function with 4 args
41  */
42 abstract public class CompiledFunctionRef_4 extends CompiledFunctionRef {
43   private static final Logger JavaDoc log
44     = Logger.getLogger(CompiledFunctionRef_4.class.getName());
45   private static final L10N L = new L10N(CompiledFunctionRef_4.class);
46
47   private final String JavaDoc _name;
48   private final Expr _default_0;
49   private final Expr _default_1;
50   private final Expr _default_2;
51   private final Expr _default_3;
52
53   public CompiledFunctionRef_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       log.fine(L.l(env.getLocation().getMessagePrefix() + "incorrect number of arguments" + env.getFunctionLocation()));
76
77     return args;
78   }
79
80   public Value callRef(Env env, Value []argValues)
81   {
82     switch (argValues.length) {
83     case 0:
84       return callRef(env,
85                      _default_0.eval(env),
86                      _default_1.eval(env),
87                      _default_2.eval(env),
88                      _default_3.eval(env));
89
90     case 1:
91       return callRef(env,
92                      argValues[0],
93                      _default_1.eval(env),
94                      _default_2.eval(env),
95                      _default_3.eval(env));
96     case 2:
97       return callRef(env,
98                      argValues[0],
99                      argValues[1],
100                      _default_2.eval(env),
101                      _default_3.eval(env));
102     case 3:
103       return callRef(env,
104                      argValues[0],
105                      argValues[1],
106                      argValues[2],
107                      _default_3.eval(env));
108     case 4:
109     default:
110       return callRef(env,
111                      argValues[0],
112                      argValues[1],
113                      argValues[2],
114                      argValues[3]);
115     }
116   }
117
118   /**
119    * Evaluates the function with arguments
120    */
121   abstract public Value callRef(Env env, Value a1, Value a2, Value a3, Value a4);
122
123   public String JavaDoc toString()
124   {
125     return "CompiledFunctionRef_4[" + _name + "]";
126   }
127 }
128
129
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