mcs/class/Microsoft.JScript/Microsoft.JScript/FunctionObject.cs

   1 //
   2 // FunctionObject.cs:
   3 //
   4 // Author:
   5 //      Cesar Octavio Lopez Nataren
   6 //
   7 // (C) 2003, Cesar Octavio Lopez Nataren, <cesar@ciencias.unam.mx>
   8 //
   9
  10 using System;
  11 using System.Text;
  12 using System.Reflection;
  13 using System.Collections;
  14
  15 namespace Microsoft.JScript {
  16
  17         public class FunctionObject : ScriptFunction {
  18
  19                 internal MethodAttributes attr;
  20                 internal string name;
  21                 internal string type_annot;
  22                 internal Type return_type;
  23                 internal FormalParameterList parameters;
  24                 internal Block body;
  25                 internal AST parent;
  26
  27                 internal FunctionObject (AST parent, string name,
  28                                          FormalParameterList p,
  29                                          string ret_type, Block body)
  30                 {
  31                         //
  32                         // FIXME:
  33                         // 1) Must collect the attributes given.
  34                         // 2) Check if they are semantically correct.
  35                         // 3) Assign those values to 'attr'.
  36                         //
  37                         this.attr = MethodAttributes.Public | MethodAttributes.Static;
  38
  39                         this.parent = parent;
  40                         this.name = name;
  41                         this.parameters = p;
  42
  43                         this.type_annot = ret_type;
  44                         //
  45                         // FIXME: Must check that return_type it's a valid type,
  46                         // and assign that to 'return_type' field.
  47                         //
  48                         this.return_type = typeof (void);
  49
  50                         this.body = body;
  51                 }
  52
  53                 internal FunctionObject ()
  54                 {
  55                         this.parameters = new FormalParameterList ();
  56                         this.body = new Block (parent);
  57                 }
  58
  59                 public override string ToString ()
  60                 {
  61                         StringBuilder sb = new StringBuilder ();
  62
  63                         sb.Append ("function ");
  64                         sb.Append (name + " ");
  65                         sb.Append ("(");
  66
  67                         if (parameters != null)
  68                                 sb.Append (this.parameters.ToString ());
  69
  70                         sb.Append (")");
  71                         sb.Append (" : " + return_type);
  72                         sb.Append ("{");
  73
  74                         if (body != null)
  75                                 sb.Append (body.ToString ());
  76
  77                         sb.Append ("}");
  78
  79                         return sb.ToString ();
  80                 }
  81
  82                 internal Type [] params_types ()
  83                 {
  84                         if (parameters == null)
  85                                 return
  86                                         new Type [] {typeof (Object), typeof (Microsoft.JScript.Vsa.VsaEngine)};
  87                         else {
  88                                 int i, size;
  89                                 ArrayList p = parameters.ids;
  90
  91                                 size = p.Count + 2;
  92
  93                                 Type [] types = new Type [size];
  94
  95                                 types [0] = typeof (Object);
  96                                 types [1] = typeof (Microsoft.JScript.Vsa.VsaEngine);
  97
  98                                 for (i = 2; i < size; i++)
  99                                         types [i] = ((FormalParam) p [i - 2]).type;
 100
 101                                 return types;
 102                         }
 103                 }
 104         }
 105 }