mcs/ilasm/codegen/ParamDef.cs

   1 //
   2 // Mono.ILASM.ParamDef
   3 //
   4 // Author(s):
   5 //  Jackson Harper (Jackson@LatitudeGeo.com)
   6 //
   7 // (C) 2003 Jackson Harper, All rights reserved
   8 //
   9
  10
  11 using System;
  12 using System.Collections;
  13
  14
  15 namespace Mono.ILASM {
  16
  17         /// <summary>
  18         ///  Definition of a parameter passed to a method
  19         /// </summary>
  20         public class ParamDef : ICustomAttrTarget {
  21
  22                 private PEAPI.ParamAttr attr;
  23                 private string name;
  24                 private BaseTypeRef typeref;
  25                 private bool is_defined;
  26                 private PEAPI.Param peapi_param;
  27                 private PEAPI.Constant defval;
  28                 private ArrayList customattr_list;
  29                 private PEAPI.NativeType native_type;
  30
  31                 public static readonly ParamDef Ellipsis = new ParamDef (new PEAPI.ParamAttr (), "ELLIPSIS", null);
  32
  33                 public ParamDef (PEAPI.ParamAttr attr, string name,
  34                                 BaseTypeRef typeref) {
  35                         this.attr = attr;
  36                         this.name = name;
  37                         this.typeref = typeref;
  38                         is_defined = false;
  39                         defval = null;
  40                 }
  41
  42                 public void AddDefaultValue (PEAPI.Constant cVal)
  43                 {
  44                         defval = cVal;
  45                 }
  46
  47                 public void AddCustomAttribute (CustomAttr customattr)
  48                 {
  49                         if (customattr_list == null)
  50                                 customattr_list = new ArrayList ();
  51
  52                         customattr_list.Add (customattr);
  53                 }
  54
  55                 public void AddMarshalInfo (PEAPI.NativeType native_type)
  56                 {
  57                         this.native_type = native_type;
  58                 }
  59
  60                 public BaseTypeRef Type {
  61                         get { return typeref; }
  62                 }
  63
  64                 public string TypeName {
  65                         get { return typeref.FullName; }
  66                 }
  67
  68                 public string Name {
  69                         get { return name; }
  70                 }
  71
  72                 public PEAPI.Param PeapiParam {
  73                         get { return peapi_param; }
  74                 }
  75
  76                 public bool IsSentinel ()
  77                 {
  78                         return (typeref is SentinelTypeRef && this != Ellipsis);
  79                 }
  80
  81                 public void Define (CodeGen code_gen)
  82                 {
  83                         if (is_defined)
  84                                 return;
  85
  86                         typeref.Resolve (code_gen);
  87
  88                         peapi_param = new PEAPI.Param (attr,
  89                                         name, typeref.PeapiType);
  90                         if (defval != null) {
  91                                 peapi_param.AddDefaultValue (defval);
  92                         }
  93
  94                         if (customattr_list != null)
  95                                 foreach (CustomAttr customattr in customattr_list)
  96                                         customattr.AddTo (code_gen, peapi_param);
  97
  98                         if (native_type != null)
  99                                 peapi_param.AddMarshallInfo (native_type);
 100
 101                         is_defined = true;
 102                 }
 103         }
 104
 105 }
 106