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
246
247
|
// **********************************************************************
//
// Copyright (c) 2003-2016 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
using System;
using System.Collections.Generic;
using System.Reflection;
namespace IceInternal
{
public sealed class ParamPatcher<T> where T : Ice.Value
{
public ParamPatcher(string type)
{
_type = type;
}
public void patch(Ice.Value v)
{
if(v != null && !typeof(T).IsAssignableFrom(v.GetType()))
{
Ex.throwUOE(_type, v.ice_id());
}
value = (T)v;
}
public T value;
private string _type;
}
public sealed class CustomSeqPatcher<T> where T : Ice.Value
{
public CustomSeqPatcher(string type, IEnumerable<T> seq, int index)
{
_type = type;
_seq = seq;
_seqType = seq.GetType();
_index = index;
setInvokeInfo(_seqType);
}
public void patch(Ice.Value v)
{
if(v != null && !typeof(T).IsAssignableFrom(v.GetType()))
{
Ex.throwUOE(_type, v.ice_id());
}
InvokeInfo info = getInvokeInfo(_seqType);
int count = info.getCount(_seq);
if(_index >= count) // Need to grow the sequence.
{
for(int i = count; i < _index; i++)
{
info.invokeAdd(_seq, default(T));
}
info.invokeAdd(_seq, (T)v);
}
else
{
info.invokeSet(_seq, _index, (T)v);
}
}
private static InvokeInfo getInvokeInfo(Type t)
{
lock(_methodTable)
{
try
{
return _methodTable[t];
}
catch(KeyNotFoundException)
{
throw new Ice.MarshalException("No invoke record for type " + t.ToString());
}
}
}
private static void setInvokeInfo(Type t)
{
lock(_methodTable)
{
if(_methodTable.ContainsKey(t))
{
return;
}
MethodInfo am = t.GetMethod("Add", _params);
if(am == null)
{
throw new Ice.MarshalException("Cannot patch a collection without an Add() method");
}
PropertyInfo pi = t.GetProperty("Item");
if(pi == null)
{
throw new Ice.MarshalException("Cannot patch a collection without an indexer");
}
MethodInfo sm = pi.GetSetMethod();
if(sm == null)
{
throw new Ice.MarshalException("Cannot patch a collection without an indexer to set a value");
}
pi = t.GetProperty("Count");
if(pi == null)
{
throw new Ice.MarshalException("Cannot patch a collection without a Count property");
}
MethodInfo cm = pi.GetGetMethod();
if(cm == null)
{
throw new Ice.MarshalException("Cannot patch a collection without a readable Count property");
}
_methodTable.Add(t, new InvokeInfo(am, sm, cm));
}
}
private class InvokeInfo
{
public InvokeInfo(MethodInfo am, MethodInfo sm, MethodInfo cm)
{
_addMethod = am;
_setMethod = sm;
_countMethod = cm;
}
internal int getCount(System.Collections.IEnumerable seq)
{
try
{
return (int)_countMethod.Invoke(seq, null);
}
catch(Exception ex)
{
throw new Ice.MarshalException("Could not read Count property during patching", ex);
}
}
internal void invokeAdd(System.Collections.IEnumerable seq, T v)
{
try
{
object[] arg = new object[] { v };
_addMethod.Invoke(seq, arg);
}
catch(Exception ex)
{
throw new Ice.MarshalException("Could not invoke Add method during patching", ex);
}
}
internal void invokeSet(System.Collections.IEnumerable seq, int index, T v)
{
try
{
object[] args = new object[] { index, v };
_setMethod.Invoke(seq, args);
}
catch(Exception ex)
{
throw new Ice.MarshalException("Could not call indexer during patching", ex);
}
}
private MethodInfo _addMethod;
private MethodInfo _setMethod;
private MethodInfo _countMethod;
}
private static Type[] _params = new Type[] { typeof(T) };
private static Dictionary<Type, InvokeInfo> _methodTable = new Dictionary<Type, InvokeInfo>();
private string _type;
private IEnumerable<T> _seq;
private Type _seqType;
private int _index; // The index at which to patch the sequence.
}
public sealed class ArrayPatcher<T> where T : Ice.Value
{
public ArrayPatcher(string type, T[] seq, int index)
{
_type = type;
_seq = seq;
_index = index;
}
public void patch(Ice.Value v)
{
if(v != null && !typeof(T).IsAssignableFrom(v.GetType()))
{
Ex.throwUOE(_type, v.ice_id());
}
_seq[_index] = (T)v;
}
private string _type;
private T[] _seq;
private int _index; // The index at which to patch the array.
}
public sealed class ListPatcher<T> where T : Ice.Value
{
public ListPatcher(string type, List<T> seq, int index)
{
_type = type;
_seq = seq;
_index = index;
}
public void patch(Ice.Value v)
{
if(v != null && !typeof(T).IsAssignableFrom(v.GetType()))
{
Ex.throwUOE(_type, v.ice_id());
}
int count = _seq.Count;
if(_index >= count) // Need to grow the sequence.
{
for(int i = count; i < _index; i++)
{
_seq.Add(default(T));
}
_seq.Add((T)v);
}
else
{
_seq[_index] = (T)v;
}
}
private string _type;
private List<T> _seq;
private int _index; // The index at which to patch the sequence.
}
}
|
