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 using System;
  11 using System.Collections;
  12 using System.Text;
  13
  14 namespace Mono.ILASM {
  15
  16         public class GenericArguments {
  17                 ArrayList type_list;
  18                 string type_str;
  19                 BaseTypeRef [] type_arr;
  20                 bool is_resolved;
  21                 PEAPI.Type [] p_type_list;
  22
  23                 public GenericArguments ()
  24                 {
  25                         type_list = null;
  26                         type_arr = null;
  27                         type_str = null;
  28                         is_resolved = false;
  29                         p_type_list = null;
  30                 }
  31
  32                 public int Count {
  33                         get { return type_list.Count; }
  34                 }
  35
  36                 public void Add (BaseTypeRef type)
  37                 {
  38                         if (type == null)
  39                                 throw new InternalErrorException ();
  40
  41                         if (type_list == null)
  42                                 type_list = new ArrayList ();
  43                         type_list.Add (type);
  44                         type_str = null;
  45                         type_arr = null;
  46                 }
  47
  48                 public BaseTypeRef [] ToArray ()
  49                 {
  50                         if (type_list == null)
  51                                 return null;
  52                         if (type_arr == null)
  53                                 type_arr = (BaseTypeRef []) type_list.ToArray (typeof (BaseTypeRef));
  54
  55                         return type_arr;
  56                 }
  57
  58                 public PEAPI.Type [] Resolve (CodeGen code_gen)
  59                 {
  60                         if (is_resolved)
  61                                 return p_type_list;
  62
  63                         int i = 0;
  64                         p_type_list = new PEAPI.Type [type_list.Count];
  65                         foreach (BaseTypeRef type in type_list) {
  66                                 type.Resolve (code_gen);
  67                                 p_type_list [i ++] = type.PeapiType;
  68                         }
  69                         is_resolved = true;
  70                         type_str = null;
  71                         return p_type_list;
  72                 }
  73
  74                 public void Resolve (GenericParameters type_gen_params, GenericParameters method_gen_params)
  75                 {
  76                         foreach (BaseTypeRef type in type_list) {
  77                                 BaseGenericTypeRef gtr = type as BaseGenericTypeRef;
  78                                 if (gtr != null)
  79                                         gtr.Resolve (type_gen_params, method_gen_params);
  80                         }
  81                         /* Reset, might have changed (think GenericParamRef) */
  82                         type_str = null;
  83                 }
  84
  85                 private void MakeString ()
  86                 {
  87                         //Build full_name (foo < , >)
  88                         StringBuilder sb = new StringBuilder ();
  89                         sb.Append ("<");
  90                         foreach (BaseTypeRef tr in type_list)
  91                                 sb.AppendFormat ("{0}, ", tr.FullName);
  92                         //Remove the extra ', ' at the end
  93                         sb.Length -= 2;
  94                         sb.Append (">");
  95                         type_str = sb.ToString ();
  96                 }
  97
  98                 public override string ToString ()
  99                 {
 100                         if (type_str == null)
 101                                 MakeString ();
 102                         return type_str;
 103                 }
 104         }
 105
 106 }
 107