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Java > Open Source Codes > com > caucho > quercus > program > CompiledMethodRef_1


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 1 arg
42  */
43 abstract public class CompiledMethodRef_1 extends CompiledMethodRef {
44   private static final Logger JavaDoc log
45     = Logger.getLogger(CompiledMethodRef_1.class.getName());
46   private static final L10N L = new L10N(CompiledMethodRef_1.class);
47
48   private String JavaDoc _name;
49   private Expr _default_0;
50
51   public CompiledMethodRef_1(String JavaDoc name, Expr default_0)
52   {
53     _name = name;
54     _default_0 = default_0;
55   }
56   
57   /**
58    * Binds the user's arguments to the actual arguments.
59    *
60    * @param args the user's arguments
61    * @return the user arguments augmented by any defaults
62    */
63   public Expr []bindArguments(Env env, Expr fun, Expr []args)
64   {
65     if (args.length != 1)
66       env.warning(L.l("incorrect"));
67
68     return args;
69   }
70
71   /**
72    * Evaluates the method with the given variable arguments.
73    */
74   public Value callMethodRef(Env env, Value obj, Value []argValues)
75   {
76     switch (argValues.length) {
77     case 0:
78       return callMethodRef(env, obj, _default_0.eval(env));
79     case 1:
80     default:
81       return callMethodRef(env, obj, argValues[0]);
82     }
83   }
84
85   abstract public Value callMethodRef(Env env, Value obj, Value a1);
86
87   /**
88    * Evaluates the method as a static function
89    */
90   public Value call(Env env, Value []argValues)
91   {
92     env.warning(L.l("can't call '{0}' as a static function", _name));
93
94     return NullValue.NULL;
95   }
96   
97   public String JavaDoc toString()
98   {
99     return "CompiledFunction_1[" + _name + "]";
100   }
101 }
102
103
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