mcs/generic.cs

   1 //
   2 // generic.cs: Support classes for generics
   3 //
   4 // Author:
   5 //   Miguel de Icaza (miguel@ximian.com)
   6 //
   7 // (C) 2003 Ximian, Inc.
   8 //
   9 using System;
  10 using System.Collections;
  11
  12 namespace Mono.CSharp {
  13
  14         //
  15         // Tracks the constraints for a type parameter
  16         //
  17         class Constraints {
  18                 string type_parameter;
  19                 ArrayList constraints;
  20
  21                 //
  22                 // type_parameter is the identifier, constraints is an arraylist of
  23                 // Expressions (with types) or `true' for the constructor constraint.
  24                 //
  25                 public Constraints (string type_parameter, ArrayList constraints)
  26                 {
  27                         this.type_parameter = type_parameter;
  28                         this.constraints = constraints;
  29                 }
  30         }
  31
  32         //
  33         // This type represents a generic type parameter reference.
  34         //
  35         // These expressions are born in a fully resolved state.
  36         //
  37         public class TypeParameterExpr : TypeExpr {
  38                 string type_parameter;
  39
  40                 public TypeParameterExpr (string type_parameter, Location l)
  41                         : base (typeof (object), l)
  42                 {
  43                         this.type_parameter = type_parameter;
  44                 }
  45
  46                 public override string ToString ()
  47                 {
  48                         return "TypeParameter[" + type_parameter + "]";
  49                 }
  50
  51                 public void Error_CannotUseAsUnmanagedType (Location loc)
  52                 {
  53                         Report.Error (-203, loc, "Can not use type parameter as unamanged type");
  54                 }
  55         }
  56 }