mcs/ilasm/codegen/GenericArguments.cs

   1 //
   2 // Mono.ILASM.GenericArguments
   3 //
   4 // Author(s):
   5 //  Ankit Jain  <jankit@novell.com>
   6 //
   7 // Copyright 2005 Novell, Inc (http://www.novell.com)
   8 //
   9
  10 //Note: This is shared by modified types of the same generic instance
  11 //      Eg. foo`1<int32> and foo`1<int32> [] would share their GenericArguments
  12
  13 using System;
  14 using System.Collections;
  15 using System.Text;
  16
  17 namespace Mono.ILASM {
  18
  19         public class GenericArguments {
  20                 ArrayList type_list;
  21                 string type_str;
  22                 ITypeRef [] type_arr;
  23
  24                 public GenericArguments ()
  25                 {
  26                         type_list = null;
  27                         type_arr = null;
  28                         type_str = null;
  29                 }
  30
  31                 public int Count {
  32                         get { return type_list.Count; }
  33                 }
  34
  35                 public void Add (ITypeRef type)
  36                 {
  37                         if (type == null)
  38                                 throw new ArgumentException ("type");
  39
  40                         if (type_list == null)
  41                                 type_list = new ArrayList ();
  42                         type_list.Add (type);
  43                         type_str = null;
  44                         type_arr = null;
  45                 }
  46
  47                 public ITypeRef [] ToArray ()
  48                 {
  49                         if (type_list == null)
  50                                 return null;
  51                         if (type_arr == null)
  52                                 type_arr = (ITypeRef []) type_list.ToArray (typeof (ITypeRef));
  53
  54                         return type_arr;
  55                 }
  56
  57                 public PEAPI.Type [] Resolve (CodeGen code_gen)
  58                 {
  59                         int i = 0;
  60                         PEAPI.Type [] p_type_list = new PEAPI.Type [type_list.Count];
  61                         foreach (ITypeRef type in type_list) {
  62                                 type.Resolve (code_gen);
  63                                 p_type_list [i ++] = type.PeapiType;
  64                         }
  65
  66                         return p_type_list;
  67                 }
  68
  69                 private void MakeString ()
  70                 {
  71                         //Build full_name (foo < , >)
  72                         StringBuilder sb = new StringBuilder ();
  73                         sb.Append ("<");
  74                         foreach (ITypeRef tr in type_list)
  75                                 sb.AppendFormat ("{0}, ", tr.FullName);
  76                         //Remove the extra ', ' at the end
  77                         sb.Length -= 2;
  78                         sb.Append (">");
  79                         type_str = sb.ToString ();
  80                 }
  81
  82                 public override string ToString ()
  83                 {
  84                         if (type_str == null)
  85                                 MakeString ();
  86                         return type_str;
  87                 }
  88         }
  89
  90 }
  91