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Java > Open Source Codes > com > caucho > quercus > program > CompiledRefMethod_0


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.NullValue;
34 import com.caucho.quercus.env.Value;
35 import com.caucho.quercus.expr.Expr;
36 import com.caucho.util.L10N;
37
38 import java.util.logging.Logger JavaDoc;
39
40 /**
41  * Represents a compiled method with 0 args
42  */
43 abstract public class CompiledRefMethod_0 extends CompiledMethodRef {
44   private static final Logger JavaDoc log
45     = Logger.getLogger(CompiledRefMethod_0.class.getName());
46   private static final L10N L = new L10N(CompiledRefMethod_0.class);
47
48   private String JavaDoc _name;
49
50   public CompiledRefMethod_0(String JavaDoc name)
51   {
52     _name = name;
53   }
54   
55   /**
56    * Binds the user's arguments to the actual arguments.
57    *
58    * @param args the user's arguments
59    * @return the user arguments augmented by any defaults
60    */
61   public Expr []bindArguments(Env env, Expr fun, Expr []args)
62   {
63     if (args.length != 0)
64       env.warning(L.l("too many arguments"));
65
66     return args;
67   }
68
69   public Value callMethod(Env env, Value obj, Value []argValues)
70   {
71     return callMethodRef(env, obj, argValues).copy();
72   }
73
74   /**
75    * Evalautes the method.
76    */
77   public Value callMethodRef(Env env, Value obj, Value []argValues)
78   {
79     if (argValues.length > 0)
80       env.warning(L.l("too many arguments in {0}", _name));
81
82     return callMethodRef(env, obj);
83   }
84
85   /**
86    * Evaluates the method as a static function
87    */
88   public Value call(Env env, Value []argValues)
89   {
90     env.error(L.l("can't call {0} as a static function",
91           _name));
92
93     return NullValue.NULL;
94   }
95
96   /**
97    * Evaluates the method as a static function
98    */
99   public Value callMethod(Env env)
100   {
101     return callMethodRef(env).copy();
102   }
103
104   /**
105    * Evaluates the method as a static function
106    */
107   abstract public Value callMethodRef(Env env);
108   
109   public String JavaDoc toString()
110   {
111     return "CompiledMethod_0[" + _name + "]";
112   }
113 }
114
115
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