1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
/*
Copyright (C) 2009-2011 Jeroen Frijters
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
Jeroen Frijters
jeroen@frijters.net
*/
using System;
using System.Collections.Generic;
using System.Runtime.CompilerServices;
using IKVM.Reflection.Metadata;
using IKVM.Reflection.Writer;
namespace IKVM.Reflection.Emit
{
public sealed class EventBuilder : EventInfo
{
private readonly TypeBuilder typeBuilder;
private readonly string name;
private EventAttributes attributes;
private readonly int eventtype;
private MethodBuilder addOnMethod;
private MethodBuilder removeOnMethod;
private MethodBuilder fireMethod;
private readonly List<Accessor> accessors = new List<Accessor>();
private int lazyPseudoToken;
private struct Accessor
{
internal short Semantics;
internal MethodBuilder Method;
}
internal EventBuilder(TypeBuilder typeBuilder, string name, EventAttributes attributes, Type eventtype)
{
this.typeBuilder = typeBuilder;
this.name = name;
this.attributes = attributes;
this.eventtype = typeBuilder.ModuleBuilder.GetTypeTokenForMemberRef(eventtype);
}
public void SetAddOnMethod(MethodBuilder mdBuilder)
{
addOnMethod = mdBuilder;
Accessor acc;
acc.Semantics = MethodSemanticsTable.AddOn;
acc.Method = mdBuilder;
accessors.Add(acc);
}
public void SetRemoveOnMethod(MethodBuilder mdBuilder)
{
removeOnMethod = mdBuilder;
Accessor acc;
acc.Semantics = MethodSemanticsTable.RemoveOn;
acc.Method = mdBuilder;
accessors.Add(acc);
}
public void SetRaiseMethod(MethodBuilder mdBuilder)
{
fireMethod = mdBuilder;
Accessor acc;
acc.Semantics = MethodSemanticsTable.Fire;
acc.Method = mdBuilder;
accessors.Add(acc);
}
public void AddOtherMethod(MethodBuilder mdBuilder)
{
Accessor acc;
acc.Semantics = MethodSemanticsTable.Other;
acc.Method = mdBuilder;
accessors.Add(acc);
}
public void SetCustomAttribute(ConstructorInfo con, byte[] binaryAttribute)
{
SetCustomAttribute(new CustomAttributeBuilder(con, binaryAttribute));
}
public void SetCustomAttribute(CustomAttributeBuilder customBuilder)
{
Universe u = typeBuilder.ModuleBuilder.universe;
if (customBuilder.Constructor.DeclaringType == u.System_Runtime_CompilerServices_SpecialNameAttribute)
{
attributes |= EventAttributes.SpecialName;
}
else
{
if (lazyPseudoToken == 0)
{
lazyPseudoToken = typeBuilder.ModuleBuilder.AllocPseudoToken();
}
typeBuilder.ModuleBuilder.SetCustomAttribute(lazyPseudoToken, customBuilder);
}
}
public override EventAttributes Attributes
{
get { return attributes; }
}
public override MethodInfo GetAddMethod(bool nonPublic)
{
return nonPublic || (addOnMethod != null && addOnMethod.IsPublic) ? addOnMethod : null;
}
public override MethodInfo GetRemoveMethod(bool nonPublic)
{
return nonPublic || (removeOnMethod != null && removeOnMethod.IsPublic) ? removeOnMethod : null;
}
public override MethodInfo GetRaiseMethod(bool nonPublic)
{
return nonPublic || (fireMethod != null && fireMethod.IsPublic) ? fireMethod : null;
}
public override MethodInfo[] GetOtherMethods(bool nonPublic)
{
List<MethodInfo> list = new List<MethodInfo>();
foreach (Accessor acc in accessors)
{
if (acc.Semantics == MethodSemanticsTable.Other && (nonPublic || acc.Method.IsPublic))
{
list.Add(acc.Method);
}
}
return list.ToArray();
}
public override MethodInfo[] __GetMethods()
{
List<MethodInfo> list = new List<MethodInfo>();
foreach (Accessor acc in accessors)
{
list.Add(acc.Method);
}
return list.ToArray();
}
public override Type DeclaringType
{
get { return typeBuilder; }
}
public override string Name
{
get { return name; }
}
public override Module Module
{
get { return typeBuilder.ModuleBuilder; }
}
public EventToken GetEventToken()
{
if (lazyPseudoToken == 0)
{
lazyPseudoToken = typeBuilder.ModuleBuilder.AllocPseudoToken();
}
return new EventToken(lazyPseudoToken);
}
public override Type EventHandlerType
{
get { return typeBuilder.ModuleBuilder.ResolveType(eventtype); }
}
internal void Bake()
{
EventTable.Record rec = new EventTable.Record();
rec.EventFlags = (short)attributes;
rec.Name = typeBuilder.ModuleBuilder.Strings.Add(name);
rec.EventType = eventtype;
int token = 0x14000000 | typeBuilder.ModuleBuilder.Event.AddRecord(rec);
if (lazyPseudoToken != 0)
{
typeBuilder.ModuleBuilder.RegisterTokenFixup(lazyPseudoToken, token);
}
foreach (Accessor acc in accessors)
{
AddMethodSemantics(acc.Semantics, acc.Method.MetadataToken, token);
}
}
private void AddMethodSemantics(short semantics, int methodToken, int propertyToken)
{
MethodSemanticsTable.Record rec = new MethodSemanticsTable.Record();
rec.Semantics = semantics;
rec.Method = methodToken;
rec.Association = propertyToken;
typeBuilder.ModuleBuilder.MethodSemantics.AddRecord(rec);
}
internal override bool IsPublic
{
get
{
foreach (Accessor acc in accessors)
{
if (acc.Method.IsPublic)
{
return true;
}
}
return false;
}
}
internal override bool IsStatic
{
get
{
foreach (Accessor acc in accessors)
{
if (acc.Method.IsStatic)
{
return true;
}
}
return false;
}
}
}
}
|