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Java > Open Source Codes > com > caucho > quercus > expr > VarMethodCallExpr


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.expr;
31
32 import com.caucho.quercus.Location;
33 import com.caucho.quercus.env.Env;
34 import com.caucho.quercus.env.Value;
35 import com.caucho.quercus.program.AbstractFunction;
36 import com.caucho.util.L10N;
37
38 import java.util.ArrayList JavaDoc;
39
40 /**
41  * Represents a PHP function expression.
42  */
43 public class VarMethodCallExpr extends Expr {
44   private static final L10N L = new L10N(VarMethodCallExpr.class);
45
46   protected final Expr _objExpr;
47   
48   protected final Expr _name;
49   protected final Expr []_args;
50
51   protected Expr []_fullArgs;
52
53   private AbstractFunction _fun;
54
55   public VarMethodCallExpr(Location location, Expr objExpr, Expr name, ArrayList JavaDoc<Expr> args)
56   {
57     super(location);
58     _objExpr = objExpr;
59     
60     _name = name;
61
62     _args = new Expr[args.size()];
63     args.toArray(_args);
64   }
65
66   public VarMethodCallExpr(Location location, Expr objExpr, Expr name, Expr []args)
67   {
68     super(location);
69     _objExpr = objExpr;
70     
71     _name = name;
72
73     _args = args;
74   }
75
76   public VarMethodCallExpr(Expr objExpr, Expr name, ArrayList JavaDoc<Expr> args)
77   {
78     this(Location.UNKNOWN, objExpr, name, args);
79   }
80
81   public VarMethodCallExpr(Expr objExpr, Expr name, Expr []args)
82   {
83     this(Location.UNKNOWN, objExpr, name, args);
84   }
85   
86   /**
87    * Evaluates the expression.
88    *
89    * @param env the calling environment.
90    *
91    * @return the expression value.
92    */
93   public Value eval(Env env)
94   {
95     Value []values = new Value[_args.length];
96
97     for (int i = 0; i < values.length; i++) {
98       values[i] = _args[i].evalArg(env);
99     }
100     
101     return _objExpr.eval(env).callMethod(env, _name.evalString(env), values);
102   }
103   
104   public String JavaDoc toString()
105   {
106     return _objExpr + "->" + _name + "()";
107   }
108 }
109
110
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