mcs/ilasm/codegen/FieldDef.cs

   1 //
   2 // Mono.ILASM.FieldDef
   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
  13 namespace Mono.ILASM {
  14
  15         public class FieldDef {
  16
  17                 private string name;
  18                 private ITypeRef type;
  19                 private PEAPI.FieldAttr attr;
  20                 private PEAPI.FieldDef field_def;
  21
  22                 private bool offset_set;
  23                 private bool datavalue_set;
  24                 private bool value_set;
  25
  26                 private bool is_resolved;
  27
  28                 private uint offset;
  29                 private PEAPI.Constant constant;
  30
  31                 public FieldDef (PEAPI.FieldAttr attr, string name,
  32                                 ITypeRef type)
  33                 {
  34                         this.attr = attr;
  35                         this.name = name;
  36                         this.type = type;
  37
  38                         offset_set = false;
  39                         datavalue_set = false;
  40                         value_set = false;
  41
  42                         is_resolved = false;
  43                 }
  44
  45                 public string Name {
  46                         get { return name; }
  47                 }
  48
  49                 public PEAPI.FieldDef PeapiFieldDef {
  50                         get { return field_def; }
  51                 }
  52
  53                 public void SetOffset (uint val)
  54                 {
  55                         offset_set = true;
  56                         offset = val;
  57                 }
  58
  59                 public void SetValue (PEAPI.Constant constant)
  60                 {
  61                         value_set = true;
  62                         this.constant = constant;
  63                 }
  64
  65                 public PEAPI.FieldDef Resolve (CodeGen code_gen)
  66                 {
  67                         if (is_resolved)
  68                                 return field_def;
  69
  70                         type.Resolve (code_gen);
  71                         field_def = code_gen.PEFile.AddField (attr, name, type.PeapiType);
  72
  73                         is_resolved = true;
  74
  75                         return field_def;
  76                 }
  77
  78                 public PEAPI.FieldDef Resolve (CodeGen code_gen, PEAPI.ClassDef classdef)
  79                 {
  80                         if (is_resolved)
  81                                 return field_def;
  82
  83                         type.Resolve (code_gen);
  84                         field_def = classdef.AddField (attr, name, type.PeapiType);
  85
  86                         is_resolved = true;
  87
  88                         return field_def;
  89                 }
  90
  91                 /// <summary>
  92                 ///  Define a global field
  93                 /// </summary>
  94                 public void Define (CodeGen code_gen)
  95                 {
  96                         Resolve (code_gen);
  97                         WriteCode (field_def);
  98                 }
  99
 100                 /// <summary>
 101                 ///  Define a field member of the specified class
 102                 /// </summary>
 103                 public void Define (CodeGen code_gen, PEAPI.ClassDef class_def)
 104                 {
 105                         Resolve (code_gen, class_def);
 106                         WriteCode (field_def);
 107                 }
 108
 109                 protected void WriteCode (PEAPI.FieldDef field_def)
 110                 {
 111                         if (offset_set)
 112                                 field_def.SetOffset (offset);
 113
 114                         if (value_set)
 115                                 field_def.AddValue (constant);
 116                 }
 117         }
 118
 119 }
 120