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Viewing changes to external/mono-addins/Mono.Addins.CecilReflector/Mono.Cecil/Mono.Cecil/AssemblyWriter.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

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external/mono-addins/Mono.Addins.CecilReflector/Mono.Cecil/Mono.Cecil/AssemblyWriter.cs
 
1
//
 
2
// AssemblyWriter.cs
 
3
//
 
4
// Author:
 
5
//   Jb Evain (jbevain@gmail.com)
 
6
//
 
7
// Copyright (c) 2008 - 2010 Jb Evain
 
8
//
 
9
// Permission is hereby granted, free of charge, to any person obtaining
 
10
// a copy of this software and associated documentation files (the
 
11
// "Software"), to deal in the Software without restriction, including
 
12
// without limitation the rights to use, copy, modify, merge, publish,
 
13
// distribute, sublicense, and/or sell copies of the Software, and to
 
14
// permit persons to whom the Software is furnished to do so, subject to
 
15
// the following conditions:
 
16
//
 
17
// The above copyright notice and this permission notice shall be
 
18
// included in all copies or substantial portions of the Software.
 
19
//
 
20
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 
21
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 
22
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 
23
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 
24
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 
25
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 
26
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
27
//
 
28
 
 
29
using System;
 
30
using System.Collections.Generic;
 
31
using System.IO;
 
32
using System.Text;
 
33
 
 
34
using Mono.Collections.Generic;
 
35
using Mono.Cecil.Cil;
 
36
using Mono.Cecil.Metadata;
 
37
using Mono.Cecil.PE;
 
38
 
 
39
using RVA = System.UInt32;
 
40
using RID = System.UInt32;
 
41
using CodedRID = System.UInt32;
 
42
using StringIndex = System.UInt32;
 
43
using BlobIndex = System.UInt32;
 
44
 
 
45
namespace Mono.Cecil {
 
46
 
 
47
#if !READ_ONLY
 
48
 
 
49
        using TypeRefRow     = Row<CodedRID, StringIndex, StringIndex>;
 
50
        using TypeDefRow     = Row<TypeAttributes, StringIndex, StringIndex, CodedRID, RID, RID>;
 
51
        using FieldRow       = Row<FieldAttributes, StringIndex, BlobIndex>;
 
52
        using MethodRow      = Row<RVA, MethodImplAttributes, MethodAttributes, StringIndex, BlobIndex, RID>;
 
53
        using ParamRow       = Row<ParameterAttributes, ushort, StringIndex>;
 
54
        using InterfaceImplRow = Row<uint, CodedRID>;
 
55
        using MemberRefRow   = Row<CodedRID, StringIndex, BlobIndex>;
 
56
        using ConstantRow    = Row<ElementType, CodedRID, BlobIndex>;
 
57
        using CustomAttributeRow = Row<CodedRID, CodedRID, BlobIndex>;
 
58
        using FieldMarshalRow = Row<CodedRID, BlobIndex>;
 
59
        using DeclSecurityRow = Row<SecurityAction, CodedRID, BlobIndex>;
 
60
        using ClassLayoutRow = Row<ushort, uint, RID>;
 
61
        using FieldLayoutRow = Row<uint, RID>;
 
62
        using EventMapRow    = Row<RID, RID>;
 
63
        using EventRow       = Row<EventAttributes, StringIndex, CodedRID>;
 
64
        using PropertyMapRow = Row<RID, RID>;
 
65
        using PropertyRow    = Row<PropertyAttributes, StringIndex, BlobIndex>;
 
66
        using MethodSemanticsRow = Row<MethodSemanticsAttributes, RID, CodedRID>;
 
67
        using MethodImplRow  = Row<RID, CodedRID, CodedRID>;
 
68
        using ImplMapRow     = Row<PInvokeAttributes, CodedRID, StringIndex, RID>;
 
69
        using FieldRVARow    = Row<RVA, RID>;
 
70
        using AssemblyRow    = Row<AssemblyHashAlgorithm, ushort, ushort, ushort, ushort, AssemblyAttributes, uint, uint, uint>;
 
71
        using AssemblyRefRow = Row<ushort, ushort, ushort, ushort, AssemblyAttributes, uint, uint, uint, uint>;
 
72
        using FileRow        = Row<FileAttributes, StringIndex, BlobIndex>;
 
73
        using ExportedTypeRow = Row<TypeAttributes, uint, StringIndex, StringIndex, CodedRID>;
 
74
        using ManifestResourceRow = Row<uint, ManifestResourceAttributes, StringIndex, CodedRID>;
 
75
        using NestedClassRow = Row<RID, RID>;
 
76
        using GenericParamRow = Row<ushort, GenericParameterAttributes, CodedRID, StringIndex>;
 
77
        using MethodSpecRow = Row<CodedRID, BlobIndex>;
 
78
        using GenericParamConstraintRow = Row<RID, CodedRID>;
 
79
 
 
80
        static class ModuleWriter {
 
81
 
 
82
                public static void WriteModuleTo (ModuleDefinition module, Stream stream, WriterParameters parameters)
 
83
                {
 
84
                        if ((module.Attributes & ModuleAttributes.ILOnly) == 0)
 
85
                                throw new ArgumentException ();
 
86
 
 
87
                        if (module.HasImage && module.ReadingMode == ReadingMode.Deferred)
 
88
                                ImmediateModuleReader.ReadModule (module);
 
89
 
 
90
                        module.MetadataSystem.Clear ();
 
91
 
 
92
                        var name = module.assembly != null ? module.assembly.Name : null;
 
93
                        var fq_name = stream.GetFullyQualifiedName ();
 
94
                        var symbol_writer_provider = parameters.SymbolWriterProvider;
 
95
                        if (symbol_writer_provider == null && parameters.WriteSymbols)
 
96
                                symbol_writer_provider = SymbolProvider.GetPlatformWriterProvider ();
 
97
                        var symbol_writer = GetSymbolWriter (module, fq_name, symbol_writer_provider);
 
98
 
 
99
#if !SILVERLIGHT && !CF
 
100
                        if (parameters.StrongNameKeyPair != null && name != null)
 
101
                                name.PublicKey = parameters.StrongNameKeyPair.PublicKey;
 
102
#endif
 
103
 
 
104
                        if (name != null && name.HasPublicKey)
 
105
                                module.Attributes |= ModuleAttributes.StrongNameSigned;
 
106
 
 
107
                        var metadata = new MetadataBuilder (module, fq_name,
 
108
                                symbol_writer_provider, symbol_writer);
 
109
 
 
110
                        BuildMetadata (module, metadata);
 
111
 
 
112
                        if (module.SymbolReader != null)
 
113
                                module.SymbolReader.Dispose ();
 
114
 
 
115
                        var writer = ImageWriter.CreateWriter (module, metadata, stream);
 
116
 
 
117
                        writer.WriteImage ();
 
118
 
 
119
#if !SILVERLIGHT && !CF
 
120
                        if (parameters.StrongNameKeyPair != null)
 
121
                                CryptoService.StrongName (stream, writer, parameters.StrongNameKeyPair);
 
122
#endif
 
123
                        if (symbol_writer != null)
 
124
                                symbol_writer.Dispose ();
 
125
                }
 
126
 
 
127
                static void BuildMetadata (ModuleDefinition module, MetadataBuilder metadata)
 
128
                {
 
129
                        if (!module.HasImage) {
 
130
                                metadata.BuildMetadata ();
 
131
                                return;
 
132
                        }
 
133
 
 
134
                        module.Read (metadata, (builder, _) => {
 
135
                                builder.BuildMetadata ();
 
136
                                return builder;
 
137
                        });
 
138
                }
 
139
 
 
140
                static ISymbolWriter GetSymbolWriter (ModuleDefinition module, string fq_name, ISymbolWriterProvider symbol_writer_provider)
 
141
                {
 
142
                        if (symbol_writer_provider == null)
 
143
                                return null;
 
144
 
 
145
                        return symbol_writer_provider.GetSymbolWriter (module, fq_name);
 
146
                }
 
147
        }
 
148
 
 
149
        abstract class MetadataTable {
 
150
 
 
151
                public abstract int Length { get; }
 
152
 
 
153
                public bool IsLarge {
 
154
                        get { return Length > 65535; }
 
155
                }
 
156
 
 
157
                public abstract void Write (TableHeapBuffer buffer);
 
158
                public abstract void Sort ();
 
159
        }
 
160
 
 
161
        abstract class OneRowTable<TRow> : MetadataTable where TRow : struct {
 
162
 
 
163
                internal TRow row;
 
164
 
 
165
                public sealed override int Length {
 
166
                        get { return 1; }
 
167
                }
 
168
 
 
169
                public sealed override void Sort ()
 
170
                {
 
171
                }
 
172
        }
 
173
 
 
174
        abstract class MetadataTable<TRow> : MetadataTable where TRow : struct {
 
175
 
 
176
                internal TRow [] rows = new TRow [2];
 
177
                internal int length;
 
178
 
 
179
                public sealed override int Length {
 
180
                        get { return length; }
 
181
                }
 
182
 
 
183
                public int AddRow (TRow row)
 
184
                {
 
185
                        if (rows.Length == length)
 
186
                                Grow ();
 
187
 
 
188
                        rows [length++] = row;
 
189
                        return length;
 
190
                }
 
191
 
 
192
                void Grow ()
 
193
                {
 
194
                        var rows = new TRow [this.rows.Length * 2];
 
195
                        Array.Copy (this.rows, rows, this.rows.Length);
 
196
                        this.rows = rows;
 
197
                }
 
198
 
 
199
                public override void Sort ()
 
200
                {
 
201
                }
 
202
        }
 
203
 
 
204
        abstract class SortedTable<TRow> : MetadataTable<TRow>, IComparer<TRow> where TRow : struct {
 
205
 
 
206
                public sealed override void Sort ()
 
207
                {
 
208
                        Array.Sort (rows, 0, length, this);
 
209
                }
 
210
 
 
211
                protected int Compare (uint x, uint y)
 
212
                {
 
213
                        return x == y ? 0 : x > y ? 1 : -1;
 
214
                }
 
215
 
 
216
                public abstract int Compare (TRow x, TRow y);
 
217
        }
 
218
 
 
219
        sealed class ModuleTable : OneRowTable<uint> {
 
220
 
 
221
                public override void Write (TableHeapBuffer buffer)
 
222
                {
 
223
                        buffer.WriteUInt16 (0);         // Generation
 
224
                        buffer.WriteString (row);       // Name
 
225
                        buffer.WriteUInt16 (1);         // Mvid
 
226
                        buffer.WriteUInt16 (0);         // EncId
 
227
                        buffer.WriteUInt16 (0);         // EncBaseId
 
228
                }
 
229
        }
 
230
 
 
231
        sealed class TypeRefTable : MetadataTable<TypeRefRow> {
 
232
 
 
233
                public override void Write (TableHeapBuffer buffer)
 
234
                {
 
235
                        for (int i = 0; i < length; i++) {
 
236
                                buffer.WriteCodedRID (
 
237
                                        rows [i].Col1, CodedIndex.ResolutionScope);     // Scope
 
238
                                buffer.WriteString (rows [i].Col2);                     // Name
 
239
                                buffer.WriteString (rows [i].Col3);                     // Namespace
 
240
                        }
 
241
                }
 
242
        }
 
243
 
 
244
        sealed class TypeDefTable : MetadataTable<TypeDefRow> {
 
245
 
 
246
                public override void Write (TableHeapBuffer buffer)
 
247
                {
 
248
                        for (int i = 0; i < length; i++) {
 
249
                                buffer.WriteUInt32 ((uint) rows [i].Col1);      // Attributes
 
250
                                buffer.WriteString (rows [i].Col2);                     // Name
 
251
                                buffer.WriteString (rows [i].Col3);                     // Namespace
 
252
                                buffer.WriteCodedRID (
 
253
                                        rows [i].Col4, CodedIndex.TypeDefOrRef);        // Extends
 
254
                                buffer.WriteRID (rows [i].Col5, Table.Field);   // FieldList
 
255
                                buffer.WriteRID (rows [i].Col6, Table.Method);  // MethodList
 
256
                        }
 
257
                }
 
258
        }
 
259
 
 
260
        sealed class FieldTable : MetadataTable<FieldRow> {
 
261
 
 
262
                public override void Write (TableHeapBuffer buffer)
 
263
                {
 
264
                        for (int i = 0; i < length; i++) {
 
265
                                buffer.WriteUInt16 ((ushort) rows [i].Col1);    // Attributes
 
266
                                buffer.WriteString (rows [i].Col2);                     // Name
 
267
                                buffer.WriteBlob (rows [i].Col3);                       // Signature
 
268
                        }
 
269
                }
 
270
        }
 
271
 
 
272
        sealed class MethodTable : MetadataTable<MethodRow> {
 
273
 
 
274
                public override void Write (TableHeapBuffer buffer)
 
275
                {
 
276
                        for (int i = 0; i < length; i++) {
 
277
                                buffer.WriteUInt32 (rows [i].Col1);             // RVA
 
278
                                buffer.WriteUInt16 ((ushort) rows [i].Col2);    // ImplFlags
 
279
                                buffer.WriteUInt16 ((ushort) rows [i].Col3);    // Flags
 
280
                                buffer.WriteString (rows [i].Col4);             // Name
 
281
                                buffer.WriteBlob (rows [i].Col5);               // Signature
 
282
                                buffer.WriteRID (rows [i].Col6, Table.Param);   // ParamList
 
283
                        }
 
284
                }
 
285
        }
 
286
 
 
287
        sealed class ParamTable : MetadataTable<ParamRow> {
 
288
 
 
289
                public override void Write (TableHeapBuffer buffer)
 
290
                {
 
291
                        for (int i = 0; i < length; i++) {
 
292
                                buffer.WriteUInt16 ((ushort) rows [i].Col1);    // Attributes
 
293
                                buffer.WriteUInt16 (rows [i].Col2);             // Sequence
 
294
                                buffer.WriteString (rows [i].Col3);             // Name
 
295
                        }
 
296
                }
 
297
        }
 
298
 
 
299
        sealed class InterfaceImplTable : MetadataTable<InterfaceImplRow> {
 
300
 
 
301
                public override void Write (TableHeapBuffer buffer)
 
302
                {
 
303
                        for (int i = 0; i < length; i++) {
 
304
                                buffer.WriteRID (rows [i].Col1, Table.TypeDef);         // Class
 
305
                                buffer.WriteCodedRID (rows [i].Col2, CodedIndex.TypeDefOrRef);  // Interface
 
306
                        }
 
307
                }
 
308
 
 
309
                /*public override int Compare (InterfaceImplRow x, InterfaceImplRow y)
 
310
                {
 
311
                        return (int) (x.Col1 == y.Col1 ? y.Col2 - x.Col2 : x.Col1 - y.Col1);
 
312
                }*/
 
313
        }
 
314
 
 
315
        sealed class MemberRefTable : MetadataTable<MemberRefRow> {
 
316
 
 
317
                public override void Write (TableHeapBuffer buffer)
 
318
                {
 
319
                        for (int i = 0; i < length; i++) {
 
320
                                buffer.WriteCodedRID (rows [i].Col1, CodedIndex.MemberRefParent);
 
321
                                buffer.WriteString (rows [i].Col2);
 
322
                                buffer.WriteBlob (rows [i].Col3);
 
323
                        }
 
324
                }
 
325
        }
 
326
 
 
327
        sealed class ConstantTable : SortedTable<ConstantRow> {
 
328
 
 
329
                public override void Write (TableHeapBuffer buffer)
 
330
                {
 
331
                        for (int i = 0; i < length; i++) {
 
332
                                buffer.WriteUInt16 ((ushort) rows [i].Col1);
 
333
                                buffer.WriteCodedRID (rows [i].Col2, CodedIndex.HasConstant);
 
334
                                buffer.WriteBlob (rows [i].Col3);
 
335
                        }
 
336
                }
 
337
 
 
338
                public override int Compare (ConstantRow x, ConstantRow y)
 
339
                {
 
340
                        return Compare (x.Col2, y.Col2);
 
341
                }
 
342
        }
 
343
 
 
344
        sealed class CustomAttributeTable : SortedTable<CustomAttributeRow> {
 
345
 
 
346
                public override void Write (TableHeapBuffer buffer)
 
347
                {
 
348
                        for (int i = 0; i < length; i++) {
 
349
                                buffer.WriteCodedRID (rows [i].Col1, CodedIndex.HasCustomAttribute);    // Parent
 
350
                                buffer.WriteCodedRID (rows [i].Col2, CodedIndex.CustomAttributeType);   // Type
 
351
                                buffer.WriteBlob (rows [i].Col3);
 
352
                        }
 
353
                }
 
354
 
 
355
                public override int Compare (CustomAttributeRow x, CustomAttributeRow y)
 
356
                {
 
357
                        return Compare (x.Col1, y.Col1);
 
358
                }
 
359
        }
 
360
 
 
361
        sealed class FieldMarshalTable : SortedTable<FieldMarshalRow> {
 
362
 
 
363
                public override void Write (TableHeapBuffer buffer)
 
364
                {
 
365
                        for (int i = 0; i < length; i++) {
 
366
                                buffer.WriteCodedRID (rows [i].Col1, CodedIndex.HasFieldMarshal);
 
367
                                buffer.WriteBlob (rows [i].Col2);
 
368
                        }
 
369
                }
 
370
 
 
371
                public override int Compare (FieldMarshalRow x, FieldMarshalRow y)
 
372
                {
 
373
                        return Compare (x.Col1, y.Col1);
 
374
                }
 
375
        }
 
376
 
 
377
        sealed class DeclSecurityTable : SortedTable<DeclSecurityRow> {
 
378
 
 
379
                public override void Write (TableHeapBuffer buffer)
 
380
                {
 
381
                        for (int i = 0; i < length; i++) {
 
382
                                buffer.WriteUInt16 ((ushort) rows [i].Col1);
 
383
                                buffer.WriteCodedRID (rows [i].Col2, CodedIndex.HasDeclSecurity);
 
384
                                buffer.WriteBlob (rows [i].Col3);
 
385
                        }
 
386
                }
 
387
 
 
388
                public override int Compare (DeclSecurityRow x, DeclSecurityRow y)
 
389
                {
 
390
                        return Compare (x.Col2, y.Col2);
 
391
                }
 
392
        }
 
393
 
 
394
        sealed class ClassLayoutTable : SortedTable<ClassLayoutRow> {
 
395
 
 
396
                public override void Write (TableHeapBuffer buffer)
 
397
                {
 
398
                        for (int i = 0; i < length; i++) {
 
399
                                buffer.WriteUInt16 (rows [i].Col1);             // PackingSize
 
400
                                buffer.WriteUInt32 (rows [i].Col2);             // ClassSize
 
401
                                buffer.WriteRID (rows [i].Col3, Table.TypeDef); // Parent
 
402
                        }
 
403
                }
 
404
 
 
405
                public override int Compare (ClassLayoutRow x, ClassLayoutRow y)
 
406
                {
 
407
                        return Compare (x.Col3, y.Col3);
 
408
                }
 
409
        }
 
410
 
 
411
        sealed class FieldLayoutTable : SortedTable<FieldLayoutRow> {
 
412
 
 
413
                public override void Write (TableHeapBuffer buffer)
 
414
                {
 
415
                        for (int i = 0; i < length; i++) {
 
416
                                buffer.WriteUInt32 (rows [i].Col1);             // Offset
 
417
                                buffer.WriteRID (rows [i].Col2, Table.Field);   // Parent
 
418
                        }
 
419
                }
 
420
 
 
421
                public override int Compare (FieldLayoutRow x, FieldLayoutRow y)
 
422
                {
 
423
                        return Compare (x.Col2, y.Col2);
 
424
                }
 
425
        }
 
426
 
 
427
        sealed class StandAloneSigTable : MetadataTable<uint> {
 
428
 
 
429
                public override void Write (TableHeapBuffer buffer)
 
430
                {
 
431
                        for (int i = 0; i < length; i++)
 
432
                                buffer.WriteBlob (rows [i]);
 
433
                }
 
434
        }
 
435
 
 
436
        sealed class EventMapTable : MetadataTable<EventMapRow> {
 
437
 
 
438
                public override void Write (TableHeapBuffer buffer)
 
439
                {
 
440
                        for (int i = 0; i < length; i++) {
 
441
                                buffer.WriteRID (rows [i].Col1, Table.TypeDef);         // Parent
 
442
                                buffer.WriteRID (rows [i].Col2, Table.Event);           // EventList
 
443
                        }
 
444
                }
 
445
        }
 
446
 
 
447
        sealed class EventTable : MetadataTable<EventRow> {
 
448
 
 
449
                public override void Write (TableHeapBuffer buffer)
 
450
                {
 
451
                        for (int i = 0; i < length; i++) {
 
452
                                buffer.WriteUInt16 ((ushort) rows [i].Col1);    // Flags
 
453
                                buffer.WriteString (rows [i].Col2);             // Name
 
454
                                buffer.WriteCodedRID (rows [i].Col3, CodedIndex.TypeDefOrRef);  // EventType
 
455
                        }
 
456
                }
 
457
        }
 
458
 
 
459
        sealed class PropertyMapTable : MetadataTable<PropertyMapRow> {
 
460
 
 
461
                public override void Write (TableHeapBuffer buffer)
 
462
                {
 
463
                        for (int i = 0; i < length; i++) {
 
464
                                buffer.WriteRID (rows [i].Col1, Table.TypeDef);         // Parent
 
465
                                buffer.WriteRID (rows [i].Col2, Table.Property);        // PropertyList
 
466
                        }
 
467
                }
 
468
        }
 
469
 
 
470
        sealed class PropertyTable : MetadataTable<PropertyRow> {
 
471
 
 
472
                public override void Write (TableHeapBuffer buffer)
 
473
                {
 
474
                        for (int i = 0; i < length; i++) {
 
475
                                buffer.WriteUInt16 ((ushort) rows [i].Col1);    // Flags
 
476
                                buffer.WriteString (rows [i].Col2);             // Name
 
477
                                buffer.WriteBlob (rows [i].Col3);               // Type
 
478
                        }
 
479
                }
 
480
        }
 
481
 
 
482
        sealed class MethodSemanticsTable : SortedTable<MethodSemanticsRow> {
 
483
 
 
484
                public override void Write (TableHeapBuffer buffer)
 
485
                {
 
486
                        for (int i = 0; i < length; i++) {
 
487
                                buffer.WriteUInt16 ((ushort) rows [i].Col1);    // Flags
 
488
                                buffer.WriteRID (rows [i].Col2, Table.Method);  // Method
 
489
                                buffer.WriteCodedRID (rows [i].Col3, CodedIndex.HasSemantics);  // Association
 
490
                        }
 
491
                }
 
492
 
 
493
                public override int Compare (MethodSemanticsRow x, MethodSemanticsRow y)
 
494
                {
 
495
                        return Compare (x.Col3, y.Col3);
 
496
                }
 
497
        }
 
498
 
 
499
        sealed class MethodImplTable : MetadataTable<MethodImplRow> {
 
500
 
 
501
                public override void Write (TableHeapBuffer buffer)
 
502
                {
 
503
                        for (int i = 0; i < length; i++) {
 
504
                                buffer.WriteRID (rows [i].Col1, Table.TypeDef); // Class
 
505
                                buffer.WriteCodedRID (rows [i].Col2, CodedIndex.MethodDefOrRef);        // MethodBody
 
506
                                buffer.WriteCodedRID (rows [i].Col3, CodedIndex.MethodDefOrRef);        // MethodDeclaration
 
507
                        }
 
508
                }
 
509
        }
 
510
 
 
511
        sealed class ModuleRefTable : MetadataTable<uint> {
 
512
 
 
513
                public override void Write (TableHeapBuffer buffer)
 
514
                {
 
515
                        for (int i = 0; i < length; i++)
 
516
                                buffer.WriteString (rows [i]);  // Name
 
517
                }
 
518
        }
 
519
 
 
520
        sealed class TypeSpecTable : MetadataTable<uint> {
 
521
 
 
522
                public override void Write (TableHeapBuffer buffer)
 
523
                {
 
524
                        for (int i = 0; i < length; i++)
 
525
                                buffer.WriteBlob (rows [i]);    // Signature
 
526
                }
 
527
        }
 
528
 
 
529
        sealed class ImplMapTable : SortedTable<ImplMapRow> {
 
530
 
 
531
                public override void Write (TableHeapBuffer buffer)
 
532
                {
 
533
                        for (int i = 0; i < length; i++) {
 
534
                                buffer.WriteUInt16 ((ushort) rows [i].Col1);    // Flags
 
535
                                buffer.WriteCodedRID (rows [i].Col2, CodedIndex.MemberForwarded);       // MemberForwarded
 
536
                                buffer.WriteString (rows [i].Col3);             // ImportName
 
537
                                buffer.WriteRID (rows [i].Col4, Table.ModuleRef);       // ImportScope
 
538
                        }
 
539
                }
 
540
 
 
541
                public override int Compare (ImplMapRow x, ImplMapRow y)
 
542
                {
 
543
                        return Compare (x.Col2, y.Col2);
 
544
                }
 
545
        }
 
546
 
 
547
        sealed class FieldRVATable : SortedTable<FieldRVARow> {
 
548
 
 
549
                internal int position;
 
550
 
 
551
                public override void Write (TableHeapBuffer buffer)
 
552
                {
 
553
                        position = buffer.position;
 
554
                        for (int i = 0; i < length; i++) {
 
555
                                buffer.WriteUInt32 (rows [i].Col1);             // RVA
 
556
                                buffer.WriteRID (rows [i].Col2, Table.Field);   // Field
 
557
                        }
 
558
                }
 
559
 
 
560
                public override int Compare (FieldRVARow x, FieldRVARow y)
 
561
                {
 
562
                        return Compare (x.Col2, y.Col2);
 
563
                }
 
564
        }
 
565
 
 
566
        sealed class AssemblyTable : OneRowTable<AssemblyRow> {
 
567
 
 
568
                public override void Write (TableHeapBuffer buffer)
 
569
                {
 
570
                        buffer.WriteUInt32 ((uint) row.Col1);   // AssemblyHashAlgorithm
 
571
                        buffer.WriteUInt16 (row.Col2);                  // MajorVersion
 
572
                        buffer.WriteUInt16 (row.Col3);                  // MinorVersion
 
573
                        buffer.WriteUInt16 (row.Col4);                  // Build
 
574
                        buffer.WriteUInt16 (row.Col5);                  // Revision
 
575
                        buffer.WriteUInt32 ((uint) row.Col6);   // Flags
 
576
                        buffer.WriteBlob (row.Col7);                    // PublicKey
 
577
                        buffer.WriteString (row.Col8);                  // Name
 
578
                        buffer.WriteString (row.Col9);                  // Culture
 
579
                }
 
580
        }
 
581
 
 
582
        sealed class AssemblyRefTable : MetadataTable<AssemblyRefRow> {
 
583
 
 
584
                public override void Write (TableHeapBuffer buffer)
 
585
                {
 
586
                        for (int i = 0; i < length; i++) {
 
587
                                buffer.WriteUInt16 (rows [i].Col1);             // MajorVersion
 
588
                                buffer.WriteUInt16 (rows [i].Col2);             // MinorVersion
 
589
                                buffer.WriteUInt16 (rows [i].Col3);             // Build
 
590
                                buffer.WriteUInt16 (rows [i].Col4);             // Revision
 
591
                                buffer.WriteUInt32 ((uint) rows [i].Col5);      // Flags
 
592
                                buffer.WriteBlob (rows [i].Col6);               // PublicKeyOrToken
 
593
                                buffer.WriteString (rows [i].Col7);             // Name
 
594
                                buffer.WriteString (rows [i].Col8);             // Culture
 
595
                                buffer.WriteBlob (rows [i].Col9);               // Hash
 
596
                        }
 
597
                }
 
598
        }
 
599
 
 
600
        sealed class FileTable : MetadataTable<FileRow> {
 
601
 
 
602
                public override void Write (TableHeapBuffer buffer)
 
603
                {
 
604
                        for (int i = 0; i < length; i++) {
 
605
                                buffer.WriteUInt32 ((uint) rows [i].Col1);
 
606
                                buffer.WriteString (rows [i].Col2);
 
607
                                buffer.WriteBlob (rows [i].Col3);
 
608
                        }
 
609
                }
 
610
        }
 
611
 
 
612
        sealed class ExportedTypeTable : MetadataTable<ExportedTypeRow> {
 
613
 
 
614
                public override void Write (TableHeapBuffer buffer)
 
615
                {
 
616
                        for (int i = 0; i < length; i++) {
 
617
                                buffer.WriteUInt32 ((uint) rows [i].Col1);
 
618
                                buffer.WriteUInt32 (rows [i].Col2);
 
619
                                buffer.WriteString (rows [i].Col3);
 
620
                                buffer.WriteString (rows [i].Col4);
 
621
                                buffer.WriteCodedRID (rows [i].Col5, CodedIndex.Implementation);
 
622
                        }
 
623
                }
 
624
        }
 
625
 
 
626
        sealed class ManifestResourceTable : MetadataTable<ManifestResourceRow> {
 
627
 
 
628
                public override void Write (TableHeapBuffer buffer)
 
629
                {
 
630
                        for (int i = 0; i < length; i++) {
 
631
                                buffer.WriteUInt32 (rows [i].Col1);
 
632
                                buffer.WriteUInt32 ((uint) rows [i].Col2);
 
633
                                buffer.WriteString (rows [i].Col3);
 
634
                                buffer.WriteCodedRID (rows [i].Col4, CodedIndex.Implementation);
 
635
                        }
 
636
                }
 
637
        }
 
638
 
 
639
        sealed class NestedClassTable : SortedTable<NestedClassRow> {
 
640
 
 
641
                public override void Write (TableHeapBuffer buffer)
 
642
                {
 
643
                        for (int i = 0; i < length; i++) {
 
644
                                buffer.WriteRID (rows [i].Col1, Table.TypeDef);         // NestedClass
 
645
                                buffer.WriteRID (rows [i].Col2, Table.TypeDef);         // EnclosingClass
 
646
                        }
 
647
                }
 
648
 
 
649
                public override int Compare (NestedClassRow x, NestedClassRow y)
 
650
                {
 
651
                        return Compare (x.Col1, y.Col1);
 
652
                }
 
653
        }
 
654
 
 
655
        sealed class GenericParamTable : MetadataTable<GenericParamRow> {
 
656
 
 
657
                public override void Write (TableHeapBuffer buffer)
 
658
                {
 
659
                        for (int i = 0; i < length; i++) {
 
660
                                buffer.WriteUInt16 (rows [i].Col1);             // Number
 
661
                                buffer.WriteUInt16 ((ushort) rows [i].Col2);    // Flags
 
662
                                buffer.WriteCodedRID (rows [i].Col3, CodedIndex.TypeOrMethodDef);       // Owner
 
663
                                buffer.WriteString (rows [i].Col4);             // Name
 
664
                        }
 
665
                }
 
666
        }
 
667
 
 
668
        sealed class MethodSpecTable : MetadataTable<MethodSpecRow> {
 
669
 
 
670
                public override void Write (TableHeapBuffer buffer)
 
671
                {
 
672
                        for (int i = 0; i < length; i++) {
 
673
                                buffer.WriteCodedRID (rows [i].Col1, CodedIndex.MethodDefOrRef);        // Method
 
674
                                buffer.WriteBlob (rows [i].Col2);       // Instantiation
 
675
                        }
 
676
                }
 
677
        }
 
678
 
 
679
        sealed class GenericParamConstraintTable : MetadataTable<GenericParamConstraintRow> {
 
680
 
 
681
                public override void Write (TableHeapBuffer buffer)
 
682
                {
 
683
                        for (int i = 0; i < length; i++) {
 
684
                                buffer.WriteRID (rows [i].Col1, Table.GenericParam);    // Owner
 
685
                                buffer.WriteCodedRID (rows [i].Col2, CodedIndex.TypeDefOrRef);  // Constraint
 
686
                        }
 
687
                }
 
688
        }
 
689
 
 
690
        sealed class MetadataBuilder {
 
691
 
 
692
                readonly internal ModuleDefinition module;
 
693
                readonly internal ISymbolWriterProvider symbol_writer_provider;
 
694
                readonly internal ISymbolWriter symbol_writer;
 
695
                readonly internal TextMap text_map;
 
696
                readonly internal string fq_name;
 
697
 
 
698
                readonly Dictionary<TypeRefRow, MetadataToken> type_ref_map;
 
699
                readonly Dictionary<uint, MetadataToken> type_spec_map;
 
700
                readonly Dictionary<MemberRefRow, MetadataToken> member_ref_map;
 
701
                readonly Dictionary<MethodSpecRow, MetadataToken> method_spec_map;
 
702
                readonly Collection<GenericParameter> generic_parameters;
 
703
                readonly Dictionary<MetadataToken, MetadataToken> method_def_map;
 
704
 
 
705
                readonly internal CodeWriter code;
 
706
                readonly internal DataBuffer data;
 
707
                readonly internal ResourceBuffer resources;
 
708
                readonly internal StringHeapBuffer string_heap;
 
709
                readonly internal UserStringHeapBuffer user_string_heap;
 
710
                readonly internal BlobHeapBuffer blob_heap;
 
711
                readonly internal TableHeapBuffer table_heap;
 
712
 
 
713
                internal MetadataToken entry_point;
 
714
 
 
715
                RID type_rid = 1;
 
716
                RID field_rid = 1;
 
717
                RID method_rid = 1;
 
718
                RID param_rid = 1;
 
719
                RID property_rid = 1;
 
720
                RID event_rid = 1;
 
721
 
 
722
                readonly TypeRefTable type_ref_table;
 
723
                readonly TypeDefTable type_def_table;
 
724
                readonly FieldTable field_table;
 
725
                readonly MethodTable method_table;
 
726
                readonly ParamTable param_table;
 
727
                readonly InterfaceImplTable iface_impl_table;
 
728
                readonly MemberRefTable member_ref_table;
 
729
                readonly ConstantTable constant_table;
 
730
                readonly CustomAttributeTable custom_attribute_table;
 
731
                readonly DeclSecurityTable declsec_table;
 
732
                readonly StandAloneSigTable standalone_sig_table;
 
733
                readonly EventMapTable event_map_table;
 
734
                readonly EventTable event_table;
 
735
                readonly PropertyMapTable property_map_table;
 
736
                readonly PropertyTable property_table;
 
737
                readonly TypeSpecTable typespec_table;
 
738
                readonly MethodSpecTable method_spec_table;
 
739
 
 
740
                readonly internal bool write_symbols;
 
741
 
 
742
                public MetadataBuilder (ModuleDefinition module, string fq_name, ISymbolWriterProvider symbol_writer_provider, ISymbolWriter symbol_writer)
 
743
                {
 
744
                        this.module = module;
 
745
                        this.text_map = CreateTextMap ();
 
746
                        this.fq_name = fq_name;
 
747
                        this.symbol_writer_provider = symbol_writer_provider;
 
748
                        this.symbol_writer = symbol_writer;
 
749
                        this.write_symbols = symbol_writer != null;
 
750
                        this.code = new CodeWriter (this);
 
751
                        this.data = new DataBuffer ();
 
752
                        this.resources = new ResourceBuffer ();
 
753
                        this.string_heap = new StringHeapBuffer ();
 
754
                        this.user_string_heap = new UserStringHeapBuffer ();
 
755
                        this.blob_heap = new BlobHeapBuffer ();
 
756
                        this.table_heap = new TableHeapBuffer (module, this);
 
757
 
 
758
                        this.type_ref_table = GetTable<TypeRefTable> (Table.TypeRef);
 
759
                        this.type_def_table = GetTable<TypeDefTable> (Table.TypeDef);
 
760
                        this.field_table = GetTable<FieldTable> (Table.Field);
 
761
                        this.method_table = GetTable<MethodTable> (Table.Method);
 
762
                        this.param_table = GetTable<ParamTable> (Table.Param);
 
763
                        this.iface_impl_table = GetTable<InterfaceImplTable> (Table.InterfaceImpl);
 
764
                        this.member_ref_table = GetTable<MemberRefTable> (Table.MemberRef);
 
765
                        this.constant_table = GetTable<ConstantTable> (Table.Constant);
 
766
                        this.custom_attribute_table = GetTable<CustomAttributeTable> (Table.CustomAttribute);
 
767
                        this.declsec_table = GetTable<DeclSecurityTable> (Table.DeclSecurity);
 
768
                        this.standalone_sig_table = GetTable<StandAloneSigTable> (Table.StandAloneSig);
 
769
                        this.event_map_table = GetTable<EventMapTable> (Table.EventMap);
 
770
                        this.event_table = GetTable<EventTable> (Table.Event);
 
771
                        this.property_map_table = GetTable<PropertyMapTable> (Table.PropertyMap);
 
772
                        this.property_table = GetTable<PropertyTable> (Table.Property);
 
773
                        this.typespec_table = GetTable<TypeSpecTable> (Table.TypeSpec);
 
774
                        this.method_spec_table = GetTable<MethodSpecTable> (Table.MethodSpec);
 
775
 
 
776
                        var row_equality_comparer = new RowEqualityComparer ();
 
777
                        type_ref_map = new Dictionary<TypeRefRow, MetadataToken> (row_equality_comparer);
 
778
                        type_spec_map = new Dictionary<uint, MetadataToken> ();
 
779
                        member_ref_map = new Dictionary<MemberRefRow, MetadataToken> (row_equality_comparer);
 
780
                        method_spec_map = new Dictionary<MethodSpecRow, MetadataToken> (row_equality_comparer);
 
781
                        generic_parameters = new Collection<GenericParameter> ();
 
782
                        if (write_symbols)
 
783
                                method_def_map = new Dictionary<MetadataToken, MetadataToken> ();
 
784
                }
 
785
 
 
786
                TextMap CreateTextMap ()
 
787
                {
 
788
                        var map = new TextMap ();
 
789
                        map.AddMap (TextSegment.ImportAddressTable, module.Architecture == TargetArchitecture.I386 ? 8 : 16);
 
790
                        map.AddMap (TextSegment.CLIHeader, 0x48, 8);
 
791
                        return map;
 
792
                }
 
793
 
 
794
                TTable GetTable<TTable> (Table table) where TTable : MetadataTable, new ()
 
795
                {
 
796
                        return table_heap.GetTable<TTable> (table);
 
797
                }
 
798
 
 
799
                uint GetStringIndex (string @string)
 
800
                {
 
801
                        if (string.IsNullOrEmpty (@string))
 
802
                                return 0;
 
803
 
 
804
                        return string_heap.GetStringIndex (@string);
 
805
                }
 
806
 
 
807
                uint GetBlobIndex (ByteBuffer blob)
 
808
                {
 
809
                        if (blob.length == 0)
 
810
                                return 0;
 
811
 
 
812
                        return blob_heap.GetBlobIndex (blob);
 
813
                }
 
814
 
 
815
                uint GetBlobIndex (byte [] blob)
 
816
                {
 
817
                        if (blob.IsNullOrEmpty ())
 
818
                                return 0;
 
819
 
 
820
                        return GetBlobIndex (new ByteBuffer (blob));
 
821
                }
 
822
 
 
823
                public void BuildMetadata ()
 
824
                {
 
825
                        BuildModule ();
 
826
 
 
827
                        table_heap.WriteTableHeap ();
 
828
                }
 
829
 
 
830
                void BuildModule ()
 
831
                {
 
832
                        var table = GetTable<ModuleTable> (Table.Module);
 
833
                        table.row = GetStringIndex (module.Name);
 
834
 
 
835
                        var assembly = module.Assembly;
 
836
 
 
837
                        if (assembly != null)
 
838
                                BuildAssembly ();
 
839
 
 
840
                        if (module.HasAssemblyReferences)
 
841
                                AddAssemblyReferences ();
 
842
 
 
843
                        if (module.HasModuleReferences)
 
844
                                AddModuleReferences ();
 
845
 
 
846
                        if (module.HasResources)
 
847
                                AddResources ();
 
848
 
 
849
                        if (module.HasExportedTypes)
 
850
                                AddExportedTypes ();
 
851
 
 
852
                        BuildTypes ();
 
853
 
 
854
                        if (assembly != null) {
 
855
                                if (assembly.HasCustomAttributes)
 
856
                                        AddCustomAttributes (assembly);
 
857
 
 
858
                                if (assembly.HasSecurityDeclarations)
 
859
                                        AddSecurityDeclarations (assembly);
 
860
                        }
 
861
 
 
862
                        if (module.HasCustomAttributes)
 
863
                                AddCustomAttributes (module);
 
864
 
 
865
                        if (module.EntryPoint != null)
 
866
                                entry_point = LookupToken (module.EntryPoint);
 
867
                }
 
868
 
 
869
                void BuildAssembly ()
 
870
                {
 
871
                        var assembly = module.Assembly;
 
872
                        var name = assembly.Name;
 
873
 
 
874
                        var table = GetTable<AssemblyTable> (Table.Assembly);
 
875
 
 
876
                        table.row = new AssemblyRow (
 
877
                                name.HashAlgorithm,
 
878
                                (ushort) name.Version.Major,
 
879
                                (ushort) name.Version.Minor,
 
880
                                (ushort) name.Version.Build,
 
881
                                (ushort) name.Version.Revision,
 
882
                                name.Attributes,
 
883
                                GetBlobIndex (name.PublicKey),
 
884
                                GetStringIndex (name.Name),
 
885
                                GetStringIndex (name.Culture));
 
886
 
 
887
                        if (assembly.Modules.Count > 1)
 
888
                                BuildModules ();
 
889
                }
 
890
 
 
891
                void BuildModules ()
 
892
                {
 
893
                        var modules = this.module.Assembly.Modules;
 
894
                        var table = GetTable<FileTable> (Table.File);
 
895
 
 
896
                        for (int i = 0; i < modules.Count; i++) {
 
897
                                var module = modules [i];
 
898
                                if (module.IsMain)
 
899
                                        continue;
 
900
 
 
901
                                var parameters = new WriterParameters {
 
902
                                        SymbolWriterProvider = symbol_writer_provider,
 
903
                                };
 
904
 
 
905
                                var file_name = GetModuleFileName (module.Name);
 
906
                                module.Write (file_name, parameters);
 
907
 
 
908
                                var hash = CryptoService.ComputeHash (file_name);
 
909
 
 
910
                                table.AddRow (new FileRow (
 
911
                                        FileAttributes.ContainsMetaData,
 
912
                                        GetStringIndex (module.Name),
 
913
                                        GetBlobIndex (hash)));
 
914
                        }
 
915
                }
 
916
 
 
917
                string GetModuleFileName (string name)
 
918
                {
 
919
                        if (string.IsNullOrEmpty (name))
 
920
                                throw new NotSupportedException ();
 
921
 
 
922
                        var path = Path.GetDirectoryName (fq_name);
 
923
                        return Path.Combine (path, name);
 
924
                }
 
925
 
 
926
                void AddAssemblyReferences ()
 
927
                {
 
928
                        var references = module.AssemblyReferences;
 
929
                        var table = GetTable<AssemblyRefTable> (Table.AssemblyRef);
 
930
 
 
931
                        for (int i = 0; i < references.Count; i++) {
 
932
                                var reference = references [i];
 
933
 
 
934
                                var key_or_token = reference.PublicKey.IsNullOrEmpty ()
 
935
                                        ? reference.PublicKeyToken
 
936
                                        : reference.PublicKey;
 
937
 
 
938
                                var rid = table.AddRow (new AssemblyRefRow (
 
939
                                        (ushort) reference.Version.Major,
 
940
                                        (ushort) reference.Version.Minor,
 
941
                                        (ushort) reference.Version.Build,
 
942
                                        (ushort) reference.Version.Revision,
 
943
                                        reference.Attributes,
 
944
                                        GetBlobIndex (key_or_token),
 
945
                                        GetStringIndex (reference.Name),
 
946
                                        GetStringIndex (reference.Culture),
 
947
                                        GetBlobIndex (reference.Hash)));
 
948
 
 
949
                                reference.token = new MetadataToken (TokenType.AssemblyRef, rid);
 
950
                        }
 
951
                }
 
952
 
 
953
                void AddModuleReferences ()
 
954
                {
 
955
                        var references = module.ModuleReferences;
 
956
                        var table = GetTable<ModuleRefTable> (Table.ModuleRef);
 
957
 
 
958
                        for (int i = 0; i < references.Count; i++) {
 
959
                                var reference = references [i];
 
960
 
 
961
                                reference.token = new MetadataToken (
 
962
                                        TokenType.ModuleRef,
 
963
                                        table.AddRow (GetStringIndex (reference.Name)));
 
964
                        }
 
965
                }
 
966
 
 
967
                void AddResources ()
 
968
                {
 
969
                        var resources = module.Resources;
 
970
                        var table = GetTable<ManifestResourceTable> (Table.ManifestResource);
 
971
 
 
972
                        for (int i = 0; i < resources.Count; i++) {
 
973
                                var resource = resources [i];
 
974
 
 
975
                                var row = new ManifestResourceRow (
 
976
                                        0,
 
977
                                        resource.Attributes,
 
978
                                        GetStringIndex (resource.Name),
 
979
                                        0);
 
980
 
 
981
                                switch (resource.ResourceType) {
 
982
                                case ResourceType.Embedded:
 
983
                                        row.Col1 = AddEmbeddedResource ((EmbeddedResource) resource);
 
984
                                        break;
 
985
                                case ResourceType.Linked:
 
986
                                        row.Col4 = CodedIndex.Implementation.CompressMetadataToken (
 
987
                                                new MetadataToken (
 
988
                                                        TokenType.File,
 
989
                                                        AddLinkedResource ((LinkedResource) resource)));
 
990
                                        break;
 
991
                                case ResourceType.AssemblyLinked:
 
992
                                        row.Col4 = CodedIndex.Implementation.CompressMetadataToken (
 
993
                                                ((AssemblyLinkedResource) resource).Assembly.MetadataToken);
 
994
                                        break;
 
995
                                default:
 
996
                                        throw new NotSupportedException ();
 
997
                                }
 
998
 
 
999
                                table.AddRow (row);
 
1000
                        }
 
1001
                }
 
1002
 
 
1003
                uint AddLinkedResource (LinkedResource resource)
 
1004
                {
 
1005
                        var table = GetTable<FileTable> (Table.File);
 
1006
 
 
1007
                        var hash = resource.Hash.IsNullOrEmpty ()
 
1008
                                ? CryptoService.ComputeHash (resource.File)
 
1009
                                : resource.Hash;
 
1010
 
 
1011
                        return (uint) table.AddRow (new FileRow (
 
1012
                                FileAttributes.ContainsNoMetaData,
 
1013
                                GetStringIndex (resource.File),
 
1014
                                GetBlobIndex (hash)));
 
1015
                }
 
1016
 
 
1017
                uint AddEmbeddedResource (EmbeddedResource resource)
 
1018
                {
 
1019
                        return resources.AddResource (resource.GetResourceData ());
 
1020
                }
 
1021
 
 
1022
                void AddExportedTypes ()
 
1023
                {
 
1024
                        var exported_types = module.ExportedTypes;
 
1025
                        var table = GetTable<ExportedTypeTable> (Table.ExportedType);
 
1026
 
 
1027
                        for (int i = 0; i < exported_types.Count; i++) {
 
1028
                                var exported_type = exported_types [i];
 
1029
 
 
1030
                                var rid = table.AddRow (new ExportedTypeRow (
 
1031
                                        exported_type.Attributes,
 
1032
                                        (uint) exported_type.Identifier,
 
1033
                                        GetStringIndex (exported_type.Name),
 
1034
                                        GetStringIndex (exported_type.Namespace),
 
1035
                                        MakeCodedRID (GetExportedTypeScope (exported_type), CodedIndex.Implementation)));
 
1036
 
 
1037
                                exported_type.token = new MetadataToken (TokenType.ExportedType, rid);
 
1038
                        }
 
1039
                }
 
1040
 
 
1041
                MetadataToken GetExportedTypeScope (ExportedType exported_type)
 
1042
                {
 
1043
                        if (exported_type.DeclaringType != null)
 
1044
                                return exported_type.DeclaringType.MetadataToken;
 
1045
 
 
1046
                        var scope = exported_type.Scope;
 
1047
                        switch (scope.MetadataToken.TokenType) {
 
1048
                        case TokenType.AssemblyRef:
 
1049
                                return scope.MetadataToken;
 
1050
                        case TokenType.ModuleRef:
 
1051
                                var file_table = GetTable<FileTable> (Table.File);
 
1052
                                for (int i = 0; i < file_table.length; i++)
 
1053
                                        if (file_table.rows [i].Col2 == GetStringIndex (scope.Name))
 
1054
                                                return new MetadataToken (TokenType.File, i + 1);
 
1055
 
 
1056
                                break;
 
1057
                        }
 
1058
 
 
1059
                        throw new NotSupportedException ();
 
1060
                }
 
1061
 
 
1062
                void BuildTypes ()
 
1063
                {
 
1064
                        if (!module.HasTypes)
 
1065
                                return;
 
1066
 
 
1067
                        AttachTokens ();
 
1068
                        AddTypeDefs ();
 
1069
                        AddGenericParameters ();
 
1070
                }
 
1071
 
 
1072
                void AttachTokens ()
 
1073
                {
 
1074
                        var types = module.Types;
 
1075
 
 
1076
                        for (int i = 0; i < types.Count; i++)
 
1077
                                AttachTypeDefToken (types [i]);
 
1078
                }
 
1079
 
 
1080
                void AttachTypeDefToken (TypeDefinition type)
 
1081
                {
 
1082
                        type.token = new MetadataToken (TokenType.TypeDef, type_rid++);
 
1083
                        type.fields_range.Start = field_rid;
 
1084
                        type.methods_range.Start = method_rid;
 
1085
 
 
1086
                        if (type.HasFields)
 
1087
                                AttachFieldsDefToken (type);
 
1088
 
 
1089
                        if (type.HasMethods)
 
1090
                                AttachMethodsDefToken (type);
 
1091
 
 
1092
                        if (type.HasNestedTypes)
 
1093
                                AttachNestedTypesDefToken (type);
 
1094
                }
 
1095
 
 
1096
                void AttachNestedTypesDefToken (TypeDefinition type)
 
1097
                {
 
1098
                        var nested_types = type.NestedTypes;
 
1099
                        for (int i = 0; i < nested_types.Count; i++)
 
1100
                                AttachTypeDefToken (nested_types [i]);
 
1101
                }
 
1102
 
 
1103
                void AttachFieldsDefToken (TypeDefinition type)
 
1104
                {
 
1105
                        var fields = type.Fields;
 
1106
                        type.fields_range.Length = (uint) fields.Count;
 
1107
                        for (int i = 0; i < fields.Count; i++)
 
1108
                                fields [i].token = new MetadataToken (TokenType.Field, field_rid++);
 
1109
                }
 
1110
 
 
1111
                void AttachMethodsDefToken (TypeDefinition type)
 
1112
                {
 
1113
                        var methods = type.Methods;
 
1114
                        type.methods_range.Length = (uint) methods.Count;
 
1115
                        for (int i = 0; i < methods.Count; i++) {
 
1116
                                var method = methods [i];
 
1117
                                var new_token = new MetadataToken (TokenType.Method, method_rid++);
 
1118
 
 
1119
                                if (write_symbols && method.token != MetadataToken.Zero)
 
1120
                                        method_def_map.Add (new_token, method.token);
 
1121
 
 
1122
                                method.token = new_token;
 
1123
                        }
 
1124
                }
 
1125
 
 
1126
                public bool TryGetOriginalMethodToken (MetadataToken new_token, out MetadataToken original)
 
1127
                {
 
1128
                        return method_def_map.TryGetValue (new_token, out original);
 
1129
                }
 
1130
 
 
1131
                MetadataToken GetTypeToken (TypeReference type)
 
1132
                {
 
1133
                        if (type == null)
 
1134
                                return MetadataToken.Zero;
 
1135
 
 
1136
                        if (type.IsDefinition)
 
1137
                                return type.token;
 
1138
 
 
1139
                        if (type.IsTypeSpecification ())
 
1140
                                return GetTypeSpecToken (type);
 
1141
 
 
1142
                        return GetTypeRefToken (type);
 
1143
                }
 
1144
 
 
1145
                MetadataToken GetTypeSpecToken (TypeReference type)
 
1146
                {
 
1147
                        var row = GetBlobIndex (GetTypeSpecSignature (type));
 
1148
 
 
1149
                        MetadataToken token;
 
1150
                        if (type_spec_map.TryGetValue (row, out token))
 
1151
                                return token;
 
1152
 
 
1153
                        return AddTypeSpecification (type, row);
 
1154
                }
 
1155
 
 
1156
                MetadataToken AddTypeSpecification (TypeReference type, uint row)
 
1157
                {
 
1158
                        type.token = new MetadataToken (TokenType.TypeSpec, typespec_table.AddRow (row));
 
1159
 
 
1160
                        var token = type.token;
 
1161
                        type_spec_map.Add (row, token);
 
1162
                        return token;
 
1163
                }
 
1164
 
 
1165
                MetadataToken GetTypeRefToken (TypeReference type)
 
1166
                {
 
1167
                        var row = CreateTypeRefRow (type);
 
1168
 
 
1169
                        MetadataToken token;
 
1170
                        if (type_ref_map.TryGetValue (row, out token))
 
1171
                                return token;
 
1172
 
 
1173
                        return AddTypeReference (type, row);
 
1174
                }
 
1175
 
 
1176
                TypeRefRow CreateTypeRefRow (TypeReference type)
 
1177
                {
 
1178
                        var scope_token = type.IsNested
 
1179
                                ? GetTypeRefToken (type.DeclaringType)
 
1180
                                : type.Scope.MetadataToken;
 
1181
 
 
1182
                        return new TypeRefRow (
 
1183
                                MakeCodedRID (scope_token, CodedIndex.ResolutionScope),
 
1184
                                GetStringIndex (type.Name),
 
1185
                                GetStringIndex (type.Namespace));
 
1186
                }
 
1187
 
 
1188
                static CodedRID MakeCodedRID (IMetadataTokenProvider provider, CodedIndex index)
 
1189
                {
 
1190
                        return MakeCodedRID (provider.MetadataToken, index);
 
1191
                }
 
1192
 
 
1193
                static CodedRID MakeCodedRID (MetadataToken token, CodedIndex index)
 
1194
                {
 
1195
                        return index.CompressMetadataToken (token);
 
1196
                }
 
1197
 
 
1198
                MetadataToken AddTypeReference (TypeReference type, TypeRefRow row)
 
1199
                {
 
1200
                        type.token = new MetadataToken (TokenType.TypeRef, type_ref_table.AddRow (row));
 
1201
 
 
1202
                        var token = type.token;
 
1203
                        type_ref_map.Add (row, token);
 
1204
                        return token;
 
1205
                }
 
1206
 
 
1207
                void AddTypeDefs ()
 
1208
                {
 
1209
                        var types = module.Types;
 
1210
 
 
1211
                        for (int i = 0; i < types.Count; i++)
 
1212
                                AddType (types [i]);
 
1213
                }
 
1214
 
 
1215
                void AddType (TypeDefinition type)
 
1216
                {
 
1217
                        type_def_table.AddRow (new TypeDefRow (
 
1218
                                type.Attributes,
 
1219
                                GetStringIndex (type.Name),
 
1220
                                GetStringIndex (type.Namespace),
 
1221
                                MakeCodedRID (GetTypeToken (type.BaseType), CodedIndex.TypeDefOrRef),
 
1222
                                type.fields_range.Start,
 
1223
                                type.methods_range.Start));
 
1224
 
 
1225
                        if (type.HasGenericParameters)
 
1226
                                AddGenericParameters (type);
 
1227
 
 
1228
                        if (type.HasInterfaces)
 
1229
                                AddInterfaces (type);
 
1230
 
 
1231
                        if (type.HasLayoutInfo)
 
1232
                                AddLayoutInfo (type);
 
1233
 
 
1234
                        if (type.HasFields)
 
1235
                                AddFields (type);
 
1236
 
 
1237
                        if (type.HasMethods)
 
1238
                                AddMethods (type);
 
1239
 
 
1240
                        if (type.HasProperties)
 
1241
                                AddProperties (type);
 
1242
 
 
1243
                        if (type.HasEvents)
 
1244
                                AddEvents (type);
 
1245
 
 
1246
                        if (type.HasCustomAttributes)
 
1247
                                AddCustomAttributes (type);
 
1248
 
 
1249
                        if (type.HasSecurityDeclarations)
 
1250
                                AddSecurityDeclarations (type);
 
1251
 
 
1252
                        if (type.HasNestedTypes)
 
1253
                                AddNestedTypes (type);
 
1254
                }
 
1255
 
 
1256
                void AddGenericParameters (IGenericParameterProvider owner)
 
1257
                {
 
1258
                        var parameters = owner.GenericParameters;
 
1259
 
 
1260
                        for (int i = 0; i < parameters.Count; i++)
 
1261
                                generic_parameters.Add (parameters [i]);
 
1262
                }
 
1263
 
 
1264
                sealed class GenericParameterComparer : IComparer<GenericParameter> {
 
1265
 
 
1266
                        public int Compare (GenericParameter a, GenericParameter b)
 
1267
                        {
 
1268
                                var a_owner = MakeCodedRID (a.Owner, CodedIndex.TypeOrMethodDef);
 
1269
                                var b_owner = MakeCodedRID (b.Owner, CodedIndex.TypeOrMethodDef);
 
1270
                                if (a_owner == b_owner) {
 
1271
                                        var a_pos = a.Position;
 
1272
                                        var b_pos = b.Position;
 
1273
                                        return a_pos == b_pos ? 0 : a_pos > b_pos ? 1 : -1;
 
1274
                                }
 
1275
 
 
1276
                                return a_owner > b_owner ? 1 : -1;
 
1277
                        }
 
1278
                }
 
1279
 
 
1280
                void AddGenericParameters ()
 
1281
                {
 
1282
                        var items = this.generic_parameters.items;
 
1283
                        var size = this.generic_parameters.size;
 
1284
                        Array.Sort (items, 0, size, new GenericParameterComparer ());
 
1285
 
 
1286
                        var generic_param_table = GetTable<GenericParamTable> (Table.GenericParam);
 
1287
                        var generic_param_constraint_table = GetTable<GenericParamConstraintTable> (Table.GenericParamConstraint);
 
1288
 
 
1289
                        for (int i = 0; i < size; i++) {
 
1290
                                var generic_parameter = items [i];
 
1291
 
 
1292
                                var rid = generic_param_table.AddRow (new GenericParamRow (
 
1293
                                        (ushort) generic_parameter.Position,
 
1294
                                        generic_parameter.Attributes,
 
1295
                                        MakeCodedRID (generic_parameter.Owner, CodedIndex.TypeOrMethodDef),
 
1296
                                        GetStringIndex (generic_parameter.Name)));
 
1297
 
 
1298
                                generic_parameter.token = new MetadataToken (TokenType.GenericParam, rid);
 
1299
 
 
1300
                                if (generic_parameter.HasConstraints)
 
1301
                                        AddConstraints (generic_parameter, generic_param_constraint_table);
 
1302
 
 
1303
                                if (generic_parameter.HasCustomAttributes)
 
1304
                                        AddCustomAttributes (generic_parameter);
 
1305
                        }
 
1306
                }
 
1307
 
 
1308
                void AddConstraints (GenericParameter generic_parameter, GenericParamConstraintTable table)
 
1309
                {
 
1310
                        var constraints = generic_parameter.Constraints;
 
1311
 
 
1312
                        var rid = generic_parameter.token.RID;
 
1313
 
 
1314
                        for (int i = 0; i < constraints.Count; i++)
 
1315
                                table.AddRow (new GenericParamConstraintRow (
 
1316
                                        rid,
 
1317
                                        MakeCodedRID (GetTypeToken (constraints [i]), CodedIndex.TypeDefOrRef)));
 
1318
                }
 
1319
 
 
1320
                void AddInterfaces (TypeDefinition type)
 
1321
                {
 
1322
                        var interfaces = type.Interfaces;
 
1323
                        var type_rid = type.token.RID;
 
1324
 
 
1325
                        for (int i = 0; i < interfaces.Count; i++)
 
1326
                                iface_impl_table.AddRow (new InterfaceImplRow (
 
1327
                                        type_rid,
 
1328
                                        MakeCodedRID (GetTypeToken (interfaces [i]), CodedIndex.TypeDefOrRef)));
 
1329
                }
 
1330
 
 
1331
                void AddLayoutInfo (TypeDefinition type)
 
1332
                {
 
1333
                        var table = GetTable<ClassLayoutTable> (Table.ClassLayout);
 
1334
 
 
1335
                        table.AddRow (new ClassLayoutRow (
 
1336
                                (ushort) type.PackingSize,
 
1337
                                (uint) type.ClassSize,
 
1338
                                type.token.RID));
 
1339
                }
 
1340
 
 
1341
                void AddNestedTypes (TypeDefinition type)
 
1342
                {
 
1343
                        var nested_types = type.NestedTypes;
 
1344
                        var nested_table = GetTable<NestedClassTable> (Table.NestedClass);
 
1345
 
 
1346
                        for (int i = 0; i < nested_types.Count; i++) {
 
1347
                                var nested = nested_types [i];
 
1348
                                AddType (nested);
 
1349
                                nested_table.AddRow (new NestedClassRow (nested.token.RID, type.token.RID));
 
1350
                        }
 
1351
                }
 
1352
 
 
1353
                void AddFields (TypeDefinition type)
 
1354
                {
 
1355
                        var fields = type.Fields;
 
1356
 
 
1357
                        for (int i = 0; i < fields.Count; i++)
 
1358
                                AddField (fields [i]);
 
1359
                }
 
1360
 
 
1361
                void AddField (FieldDefinition field)
 
1362
                {
 
1363
                        field_table.AddRow (new FieldRow (
 
1364
                                field.Attributes,
 
1365
                                GetStringIndex (field.Name),
 
1366
                                GetBlobIndex (GetFieldSignature (field))));
 
1367
 
 
1368
                        if (!field.InitialValue.IsNullOrEmpty ())
 
1369
                                AddFieldRVA (field);
 
1370
 
 
1371
                        if (field.HasLayoutInfo)
 
1372
                                AddFieldLayout (field);
 
1373
 
 
1374
                        if (field.HasCustomAttributes)
 
1375
                                AddCustomAttributes (field);
 
1376
 
 
1377
                        if (field.HasConstant)
 
1378
                                AddConstant (field, field.FieldType);
 
1379
 
 
1380
                        if (field.HasMarshalInfo)
 
1381
                                AddMarshalInfo (field);
 
1382
                }
 
1383
 
 
1384
                void AddFieldRVA (FieldDefinition field)
 
1385
                {
 
1386
                        var table = GetTable<FieldRVATable> (Table.FieldRVA);
 
1387
                        table.AddRow (new FieldRVARow (
 
1388
                                data.AddData (field.InitialValue),
 
1389
                                field.token.RID));
 
1390
                }
 
1391
 
 
1392
                void AddFieldLayout (FieldDefinition field)
 
1393
                {
 
1394
                        var table = GetTable<FieldLayoutTable> (Table.FieldLayout);
 
1395
                        table.AddRow (new FieldLayoutRow ((uint) field.Offset, field.token.RID));
 
1396
                }
 
1397
 
 
1398
                void AddMethods (TypeDefinition type)
 
1399
                {
 
1400
                        var methods = type.Methods;
 
1401
 
 
1402
                        for (int i = 0; i < methods.Count; i++)
 
1403
                                AddMethod (methods [i]);
 
1404
                }
 
1405
 
 
1406
                void AddMethod (MethodDefinition method)
 
1407
                {
 
1408
                        method_table.AddRow (new MethodRow (
 
1409
                                method.HasBody ? code.WriteMethodBody (method) : 0,
 
1410
                                method.ImplAttributes,
 
1411
                                method.Attributes,
 
1412
                                GetStringIndex (method.Name),
 
1413
                                GetBlobIndex (GetMethodSignature (method)),
 
1414
                                param_rid));
 
1415
 
 
1416
                        AddParameters (method);
 
1417
 
 
1418
                        if (method.HasGenericParameters)
 
1419
                                AddGenericParameters (method);
 
1420
 
 
1421
                        if (method.IsPInvokeImpl)
 
1422
                                AddPInvokeInfo (method);
 
1423
 
 
1424
                        if (method.HasCustomAttributes)
 
1425
                                AddCustomAttributes (method);
 
1426
 
 
1427
                        if (method.HasSecurityDeclarations)
 
1428
                                AddSecurityDeclarations (method);
 
1429
 
 
1430
                        if (method.HasOverrides)
 
1431
                                AddOverrides (method);
 
1432
                }
 
1433
 
 
1434
                void AddParameters (MethodDefinition method)
 
1435
                {
 
1436
                        var return_parameter = method.MethodReturnType.parameter;
 
1437
 
 
1438
                        if (return_parameter != null && RequiresParameterRow (return_parameter))
 
1439
                                AddParameter (0, return_parameter, param_table);
 
1440
 
 
1441
                        if (!method.HasParameters)
 
1442
                                return;
 
1443
 
 
1444
                        var parameters = method.Parameters;
 
1445
 
 
1446
                        for (int i = 0; i < parameters.Count; i++) {
 
1447
                                var parameter = parameters [i];
 
1448
                                if (!RequiresParameterRow (parameter))
 
1449
                                        continue;
 
1450
 
 
1451
                                AddParameter ((ushort) (i + 1), parameter, param_table);
 
1452
                        }
 
1453
                }
 
1454
 
 
1455
                void AddPInvokeInfo (MethodDefinition method)
 
1456
                {
 
1457
                        var pinvoke = method.PInvokeInfo;
 
1458
                        if (pinvoke == null)
 
1459
                                throw new ArgumentException ();
 
1460
 
 
1461
                        var table = GetTable<ImplMapTable> (Table.ImplMap);
 
1462
                        table.AddRow (new ImplMapRow (
 
1463
                                pinvoke.Attributes,
 
1464
                                MakeCodedRID (method, CodedIndex.MemberForwarded),
 
1465
                                GetStringIndex (pinvoke.EntryPoint),
 
1466
                                pinvoke.Module.MetadataToken.RID));
 
1467
                }
 
1468
 
 
1469
                void AddOverrides (MethodDefinition method)
 
1470
                {
 
1471
                        var overrides = method.Overrides;
 
1472
                        var table = GetTable<MethodImplTable> (Table.MethodImpl);
 
1473
 
 
1474
                        for (int i = 0; i < overrides.Count; i++) {
 
1475
                                table.AddRow (new MethodImplRow (
 
1476
                                        method.DeclaringType.token.RID,
 
1477
                                        MakeCodedRID (method, CodedIndex.MethodDefOrRef),
 
1478
                                        MakeCodedRID (LookupToken (overrides [i]), CodedIndex.MethodDefOrRef)));
 
1479
                        }
 
1480
                }
 
1481
 
 
1482
                static bool RequiresParameterRow (ParameterDefinition parameter)
 
1483
                {
 
1484
                        return !string.IsNullOrEmpty (parameter.Name)
 
1485
                                || parameter.Attributes != ParameterAttributes.None
 
1486
                                || parameter.HasMarshalInfo
 
1487
                                || parameter.HasConstant
 
1488
                                || parameter.HasCustomAttributes;
 
1489
                }
 
1490
 
 
1491
                void AddParameter (ushort sequence, ParameterDefinition parameter, ParamTable table)
 
1492
                {
 
1493
                        table.AddRow (new ParamRow (
 
1494
                                parameter.Attributes,
 
1495
                                sequence,
 
1496
                                GetStringIndex (parameter.Name)));
 
1497
 
 
1498
                        parameter.token = new MetadataToken (TokenType.Param, param_rid++);
 
1499
 
 
1500
                        if (parameter.HasCustomAttributes)
 
1501
                                AddCustomAttributes (parameter);
 
1502
 
 
1503
                        if (parameter.HasConstant)
 
1504
                                AddConstant (parameter, parameter.ParameterType);
 
1505
 
 
1506
                        if (parameter.HasMarshalInfo)
 
1507
                                AddMarshalInfo (parameter);
 
1508
                }
 
1509
 
 
1510
                void AddMarshalInfo (IMarshalInfoProvider owner)
 
1511
                {
 
1512
                        var table = GetTable<FieldMarshalTable> (Table.FieldMarshal);
 
1513
 
 
1514
                        table.AddRow (new FieldMarshalRow (
 
1515
                                MakeCodedRID (owner, CodedIndex.HasFieldMarshal),
 
1516
                                GetBlobIndex (GetMarshalInfoSignature (owner))));
 
1517
                }
 
1518
 
 
1519
                void AddProperties (TypeDefinition type)
 
1520
                {
 
1521
                        var properties = type.Properties;
 
1522
 
 
1523
                        property_map_table.AddRow (new PropertyMapRow (type.token.RID, property_rid));
 
1524
 
 
1525
                        for (int i = 0; i < properties.Count; i++)
 
1526
                                AddProperty (properties [i]);
 
1527
                }
 
1528
 
 
1529
                void AddProperty (PropertyDefinition property)
 
1530
                {
 
1531
                        property_table.AddRow (new PropertyRow (
 
1532
                                property.Attributes,
 
1533
                                GetStringIndex (property.Name),
 
1534
                                GetBlobIndex (GetPropertySignature (property))));
 
1535
                        property.token = new MetadataToken (TokenType.Property, property_rid++);
 
1536
 
 
1537
                        var method = property.GetMethod;
 
1538
                        if (method != null)
 
1539
                                AddSemantic (MethodSemanticsAttributes.Getter, property, method);
 
1540
 
 
1541
                        method = property.SetMethod;
 
1542
                        if (method != null)
 
1543
                                AddSemantic (MethodSemanticsAttributes.Setter, property, method);
 
1544
 
 
1545
                        if (property.HasOtherMethods)
 
1546
                                AddOtherSemantic (property, property.OtherMethods);
 
1547
 
 
1548
                        if (property.HasCustomAttributes)
 
1549
                                AddCustomAttributes (property);
 
1550
 
 
1551
                        if (property.HasConstant)
 
1552
                                AddConstant (property, property.PropertyType);
 
1553
                }
 
1554
 
 
1555
                void AddOtherSemantic (IMetadataTokenProvider owner, Collection<MethodDefinition> others)
 
1556
                {
 
1557
                        for (int i = 0; i < others.Count; i++)
 
1558
                                AddSemantic (MethodSemanticsAttributes.Other, owner, others [i]);
 
1559
                }
 
1560
 
 
1561
                void AddEvents (TypeDefinition type)
 
1562
                {
 
1563
                        var events = type.Events;
 
1564
 
 
1565
                        event_map_table.AddRow (new EventMapRow (type.token.RID, event_rid));
 
1566
 
 
1567
                        for (int i = 0; i < events.Count; i++)
 
1568
                                AddEvent (events [i]);
 
1569
                }
 
1570
 
 
1571
                void AddEvent (EventDefinition @event)
 
1572
                {
 
1573
                        event_table.AddRow (new EventRow (
 
1574
                                @event.Attributes,
 
1575
                                GetStringIndex (@event.Name),
 
1576
                                MakeCodedRID (GetTypeToken (@event.EventType), CodedIndex.TypeDefOrRef)));
 
1577
                        @event.token = new MetadataToken (TokenType.Event, event_rid++);
 
1578
 
 
1579
                        var method = @event.AddMethod;
 
1580
                        if (method != null)
 
1581
                                AddSemantic (MethodSemanticsAttributes.AddOn, @event, method);
 
1582
 
 
1583
                        method = @event.InvokeMethod;
 
1584
                        if (method != null)
 
1585
                                AddSemantic (MethodSemanticsAttributes.Fire, @event, method);
 
1586
 
 
1587
                        method = @event.RemoveMethod;
 
1588
                        if (method != null)
 
1589
                                AddSemantic (MethodSemanticsAttributes.RemoveOn, @event, method);
 
1590
 
 
1591
                        if (@event.HasOtherMethods)
 
1592
                                AddOtherSemantic (@event, @event.OtherMethods);
 
1593
 
 
1594
                        if (@event.HasCustomAttributes)
 
1595
                                AddCustomAttributes (@event);
 
1596
                }
 
1597
 
 
1598
                void AddSemantic (MethodSemanticsAttributes semantics, IMetadataTokenProvider provider, MethodDefinition method)
 
1599
                {
 
1600
                        method.SemanticsAttributes = semantics;
 
1601
                        var table = GetTable<MethodSemanticsTable> (Table.MethodSemantics);
 
1602
 
 
1603
                        table.AddRow (new MethodSemanticsRow (
 
1604
                                semantics,
 
1605
                                method.token.RID,
 
1606
                                MakeCodedRID (provider, CodedIndex.HasSemantics)));
 
1607
                }
 
1608
 
 
1609
                void AddConstant (IConstantProvider owner, TypeReference type)
 
1610
                {
 
1611
                        var constant = owner.Constant;
 
1612
                        var etype = GetConstantType (type, constant);
 
1613
 
 
1614
                        constant_table.AddRow (new ConstantRow (
 
1615
                                etype,
 
1616
                                MakeCodedRID (owner.MetadataToken, CodedIndex.HasConstant),
 
1617
                                GetBlobIndex (GetConstantSignature (etype, constant))));
 
1618
                }
 
1619
 
 
1620
                static ElementType GetConstantType (TypeReference constant_type, object constant)
 
1621
                {
 
1622
                        if (constant == null)
 
1623
                                return ElementType.Class;
 
1624
 
 
1625
                        var etype = constant_type.etype;
 
1626
                        switch (etype) {
 
1627
                        case ElementType.None:
 
1628
                                var type = constant_type.CheckedResolve ();
 
1629
                                if (type.IsEnum)
 
1630
                                        return GetConstantType (type.GetEnumUnderlyingType (), constant);
 
1631
 
 
1632
                                return ElementType.Class;
 
1633
                        case ElementType.String:
 
1634
                                return ElementType.String;
 
1635
                        case ElementType.Object:
 
1636
                                return GetConstantType (constant.GetType ());
 
1637
                        case ElementType.Array:
 
1638
                        case ElementType.SzArray:
 
1639
                        case ElementType.MVar:
 
1640
                        case ElementType.Var:
 
1641
                                return ElementType.Class;
 
1642
                        case ElementType.GenericInst:
 
1643
                        case ElementType.CModOpt:
 
1644
                        case ElementType.CModReqD:
 
1645
                        case ElementType.ByRef:
 
1646
                        case ElementType.Sentinel:
 
1647
                                return GetConstantType (((TypeSpecification) constant_type).ElementType, constant);
 
1648
                        case ElementType.Boolean:
 
1649
                        case ElementType.Char:
 
1650
                        case ElementType.I:
 
1651
                        case ElementType.I1:
 
1652
                        case ElementType.I2:
 
1653
                        case ElementType.I4:
 
1654
                        case ElementType.I8:
 
1655
                        case ElementType.U:
 
1656
                        case ElementType.U1:
 
1657
                        case ElementType.U2:
 
1658
                        case ElementType.U4:
 
1659
                        case ElementType.U8:
 
1660
                        case ElementType.R4:
 
1661
                        case ElementType.R8:
 
1662
                                return GetConstantType (constant.GetType ());
 
1663
                        default:
 
1664
                                return etype;
 
1665
                        }
 
1666
                }
 
1667
 
 
1668
                static ElementType GetConstantType (Type type)
 
1669
                {
 
1670
                        switch (Type.GetTypeCode (type)) {
 
1671
                        case TypeCode.Boolean:
 
1672
                                return ElementType.Boolean;
 
1673
                        case TypeCode.Byte:
 
1674
                                return ElementType.U1;
 
1675
                        case TypeCode.SByte:
 
1676
                                return ElementType.I1;
 
1677
                        case TypeCode.Char:
 
1678
                                return ElementType.Char;
 
1679
                        case TypeCode.Int16:
 
1680
                                return ElementType.I2;
 
1681
                        case TypeCode.UInt16:
 
1682
                                return ElementType.U2;
 
1683
                        case TypeCode.Int32:
 
1684
                                return ElementType.I4;
 
1685
                        case TypeCode.UInt32:
 
1686
                                return ElementType.U4;
 
1687
                        case TypeCode.Int64:
 
1688
                                return ElementType.I8;
 
1689
                        case TypeCode.UInt64:
 
1690
                                return ElementType.U8;
 
1691
                        case TypeCode.Single:
 
1692
                                return ElementType.R4;
 
1693
                        case TypeCode.Double:
 
1694
                                return ElementType.R8;
 
1695
                        case TypeCode.String:
 
1696
                                return ElementType.String;
 
1697
                        default:
 
1698
                                throw new NotSupportedException (type.FullName);
 
1699
                        }
 
1700
                }
 
1701
 
 
1702
                void AddCustomAttributes (ICustomAttributeProvider owner)
 
1703
                {
 
1704
                        var custom_attributes = owner.CustomAttributes;
 
1705
 
 
1706
                        for (int i = 0; i < custom_attributes.Count; i++) {
 
1707
                                var attribute = custom_attributes [i];
 
1708
 
 
1709
                                custom_attribute_table.AddRow (new CustomAttributeRow (
 
1710
                                        MakeCodedRID (owner, CodedIndex.HasCustomAttribute),
 
1711
                                        MakeCodedRID (LookupToken (attribute.Constructor), CodedIndex.CustomAttributeType),
 
1712
                                        GetBlobIndex (GetCustomAttributeSignature (attribute))));
 
1713
                        }
 
1714
                }
 
1715
 
 
1716
                void AddSecurityDeclarations (ISecurityDeclarationProvider owner)
 
1717
                {
 
1718
                        var declarations = owner.SecurityDeclarations;
 
1719
 
 
1720
                        for (int i = 0; i < declarations.Count; i++) {
 
1721
                                var declaration = declarations [i];
 
1722
 
 
1723
                                declsec_table.AddRow (new DeclSecurityRow (
 
1724
                                        declaration.Action,
 
1725
                                        MakeCodedRID (owner, CodedIndex.HasDeclSecurity),
 
1726
                                        GetBlobIndex (GetSecurityDeclarationSignature (declaration))));
 
1727
                        }
 
1728
                }
 
1729
 
 
1730
                MetadataToken GetMemberRefToken (MemberReference member)
 
1731
                {
 
1732
                        var row = CreateMemberRefRow (member);
 
1733
 
 
1734
                        MetadataToken token;
 
1735
                        if (member_ref_map.TryGetValue (row, out token))
 
1736
                                return token;
 
1737
 
 
1738
                        AddMemberReference (member, row);
 
1739
 
 
1740
                        return member.token;
 
1741
                }
 
1742
 
 
1743
                MemberRefRow CreateMemberRefRow (MemberReference member)
 
1744
                {
 
1745
                        return new MemberRefRow (
 
1746
                                MakeCodedRID (GetTypeToken (member.DeclaringType), CodedIndex.MemberRefParent),
 
1747
                                GetStringIndex (member.Name),
 
1748
                                GetBlobIndex (GetMemberRefSignature (member)));
 
1749
                }
 
1750
 
 
1751
                void AddMemberReference (MemberReference member, MemberRefRow row)
 
1752
                {
 
1753
                        member.token = new MetadataToken (TokenType.MemberRef, member_ref_table.AddRow (row));
 
1754
                        member_ref_map.Add (row, member.token);
 
1755
                }
 
1756
 
 
1757
                MetadataToken GetMethodSpecToken (MethodSpecification method_spec)
 
1758
                {
 
1759
                        var row = CreateMethodSpecRow (method_spec);
 
1760
 
 
1761
                        MetadataToken token;
 
1762
                        if (method_spec_map.TryGetValue (row, out token))
 
1763
                                return token;
 
1764
 
 
1765
                        AddMethodSpecification (method_spec, row);
 
1766
 
 
1767
                        return method_spec.token;
 
1768
                }
 
1769
 
 
1770
                void AddMethodSpecification (MethodSpecification method_spec, MethodSpecRow row)
 
1771
                {
 
1772
                        method_spec.token = new MetadataToken (TokenType.MethodSpec, method_spec_table.AddRow (row));
 
1773
                        method_spec_map.Add (row, method_spec.token);
 
1774
                }
 
1775
 
 
1776
                MethodSpecRow CreateMethodSpecRow (MethodSpecification method_spec)
 
1777
                {
 
1778
                        return new MethodSpecRow (
 
1779
                                MakeCodedRID (LookupToken (method_spec.ElementMethod), CodedIndex.MethodDefOrRef),
 
1780
                                GetBlobIndex (GetMethodSpecSignature (method_spec)));
 
1781
                }
 
1782
 
 
1783
                SignatureWriter CreateSignatureWriter ()
 
1784
                {
 
1785
                        return new SignatureWriter (this);
 
1786
                }
 
1787
 
 
1788
                SignatureWriter GetMethodSpecSignature (MethodSpecification method_spec)
 
1789
                {
 
1790
                        if (!method_spec.IsGenericInstance)
 
1791
                                throw new NotSupportedException ();
 
1792
 
 
1793
                        var generic_instance = (GenericInstanceMethod) method_spec;
 
1794
 
 
1795
                        var signature = CreateSignatureWriter ();
 
1796
                        signature.WriteByte (0x0a);
 
1797
 
 
1798
                        signature.WriteGenericInstanceSignature (generic_instance);
 
1799
 
 
1800
                        return signature;
 
1801
                }
 
1802
 
 
1803
                public uint AddStandAloneSignature (uint signature)
 
1804
                {
 
1805
                        return (uint) standalone_sig_table.AddRow (signature);
 
1806
                }
 
1807
 
 
1808
                public uint GetLocalVariableBlobIndex (Collection<VariableDefinition> variables)
 
1809
                {
 
1810
                        return GetBlobIndex (GetVariablesSignature (variables));
 
1811
                }
 
1812
 
 
1813
                public uint GetCallSiteBlobIndex (CallSite call_site)
 
1814
                {
 
1815
                        return GetBlobIndex (GetMethodSignature (call_site));
 
1816
                }
 
1817
 
 
1818
                SignatureWriter GetVariablesSignature (Collection<VariableDefinition> variables)
 
1819
                {
 
1820
                        var signature = CreateSignatureWriter ();
 
1821
                        signature.WriteByte (0x7);
 
1822
                        signature.WriteCompressedUInt32 ((uint) variables.Count);
 
1823
                        for (int i = 0; i < variables.Count; i++)
 
1824
                                signature.WriteTypeSignature (variables [i].VariableType);
 
1825
                        return signature;
 
1826
                }
 
1827
 
 
1828
                SignatureWriter GetFieldSignature (FieldReference field)
 
1829
                {
 
1830
                        var signature = CreateSignatureWriter ();
 
1831
                        signature.WriteByte (0x6);
 
1832
                        signature.WriteTypeSignature (field.FieldType);
 
1833
                        return signature;
 
1834
                }
 
1835
 
 
1836
                SignatureWriter GetMethodSignature (IMethodSignature method)
 
1837
                {
 
1838
                        var signature = CreateSignatureWriter ();
 
1839
                        signature.WriteMethodSignature (method);
 
1840
                        return signature;
 
1841
                }
 
1842
 
 
1843
                SignatureWriter GetMemberRefSignature (MemberReference member)
 
1844
                {
 
1845
                        var field = member as FieldReference;
 
1846
                        if (field != null)
 
1847
                                return GetFieldSignature (field);
 
1848
 
 
1849
                        var method = member as MethodReference;
 
1850
                        if (method != null)
 
1851
                                return GetMethodSignature (method);
 
1852
 
 
1853
                        throw new NotSupportedException ();
 
1854
                }
 
1855
 
 
1856
                SignatureWriter GetPropertySignature (PropertyDefinition property)
 
1857
                {
 
1858
                        var signature = CreateSignatureWriter ();
 
1859
                        byte calling_convention = 0x8;
 
1860
                        if (property.HasThis)
 
1861
                                calling_convention |= 0x20;
 
1862
 
 
1863
                        uint param_count = 0;
 
1864
                        Collection<ParameterDefinition> parameters = null;
 
1865
 
 
1866
                        if (property.HasParameters) {
 
1867
                                parameters = property.Parameters;
 
1868
                                param_count = (uint) parameters.Count;
 
1869
                        }
 
1870
 
 
1871
                        signature.WriteByte (calling_convention);
 
1872
                        signature.WriteCompressedUInt32 (param_count);
 
1873
                        signature.WriteTypeSignature (property.PropertyType);
 
1874
 
 
1875
                        if (param_count == 0)
 
1876
                                return signature;
 
1877
 
 
1878
                        for (int i = 0; i < param_count; i++)
 
1879
                                signature.WriteTypeSignature (parameters [i].ParameterType);
 
1880
 
 
1881
                        return signature;
 
1882
                }
 
1883
 
 
1884
                SignatureWriter GetTypeSpecSignature (TypeReference type)
 
1885
                {
 
1886
                        var signature = CreateSignatureWriter ();
 
1887
                        signature.WriteTypeSignature (type);
 
1888
                        return signature;
 
1889
                }
 
1890
 
 
1891
                SignatureWriter GetConstantSignature (ElementType type, object value)
 
1892
                {
 
1893
                        var signature = CreateSignatureWriter ();
 
1894
 
 
1895
                        switch (type) {
 
1896
                        case ElementType.Array:
 
1897
                        case ElementType.SzArray:
 
1898
                        case ElementType.Class:
 
1899
                        case ElementType.Object:
 
1900
                        case ElementType.Var:
 
1901
                        case ElementType.MVar:
 
1902
                                signature.WriteInt32 (0);
 
1903
                                break;
 
1904
                        case ElementType.String:
 
1905
                                signature.WriteConstantString ((string) value);
 
1906
                                break;
 
1907
                        default:
 
1908
                                signature.WriteConstantPrimitive (value);
 
1909
                                break;
 
1910
                        }
 
1911
 
 
1912
                        return signature;
 
1913
                }
 
1914
 
 
1915
                SignatureWriter GetCustomAttributeSignature (CustomAttribute attribute)
 
1916
                {
 
1917
                        var signature = CreateSignatureWriter ();
 
1918
                        if (!attribute.resolved) {
 
1919
                                signature.WriteBytes (attribute.GetBlob ());
 
1920
                                return signature;
 
1921
                        }
 
1922
 
 
1923
                        signature.WriteUInt16 (0x0001);
 
1924
 
 
1925
                        signature.WriteCustomAttributeConstructorArguments (attribute);
 
1926
 
 
1927
                        signature.WriteCustomAttributeNamedArguments (attribute);
 
1928
 
 
1929
                        return signature;
 
1930
                }
 
1931
 
 
1932
                SignatureWriter GetSecurityDeclarationSignature (SecurityDeclaration declaration)
 
1933
                {
 
1934
                        var signature = CreateSignatureWriter ();
 
1935
                        if (!declaration.resolved) {
 
1936
                                signature.WriteBytes (declaration.GetBlob ());
 
1937
                                return signature;
 
1938
                        }
 
1939
 
 
1940
                        signature.WriteByte ((byte) '.');
 
1941
 
 
1942
                        var attributes = declaration.security_attributes;
 
1943
                        if (attributes == null)
 
1944
                                throw new NotSupportedException ();
 
1945
 
 
1946
                        signature.WriteCompressedUInt32 ((uint) attributes.Count);
 
1947
 
 
1948
                        for (int i = 0; i < attributes.Count; i++)
 
1949
                                signature.WriteSecurityAttribute (attributes [i]);
 
1950
 
 
1951
                        return signature;
 
1952
                }
 
1953
 
 
1954
                SignatureWriter GetMarshalInfoSignature (IMarshalInfoProvider owner)
 
1955
                {
 
1956
                        var signature = CreateSignatureWriter ();
 
1957
 
 
1958
                        signature.WriteMarshalInfo (owner.MarshalInfo);
 
1959
 
 
1960
                        return signature;
 
1961
                }
 
1962
 
 
1963
                static Exception CreateForeignMemberException (MemberReference member)
 
1964
                {
 
1965
                        return new ArgumentException (string.Format ("Member '{0}' is declared in another module and needs to be imported", member));
 
1966
                }
 
1967
 
 
1968
                public MetadataToken LookupToken (IMetadataTokenProvider provider)
 
1969
                {
 
1970
                        if (provider == null)
 
1971
                                throw new ArgumentNullException ();
 
1972
 
 
1973
                        var member = provider as MemberReference;
 
1974
                        if (member == null || member.Module != module)
 
1975
                                throw CreateForeignMemberException (member);
 
1976
 
 
1977
                        var token = provider.MetadataToken;
 
1978
 
 
1979
                        switch (token.TokenType) {
 
1980
                        case TokenType.TypeDef:
 
1981
                        case TokenType.Method:
 
1982
                        case TokenType.Field:
 
1983
                        case TokenType.Event:
 
1984
                        case TokenType.Property:
 
1985
                                return token;
 
1986
                        case TokenType.TypeRef:
 
1987
                        case TokenType.TypeSpec:
 
1988
                        case TokenType.GenericParam:
 
1989
                                return GetTypeToken ((TypeReference) provider);
 
1990
                        case TokenType.MethodSpec:
 
1991
                                return GetMethodSpecToken ((MethodSpecification) provider);
 
1992
                        case TokenType.MemberRef:
 
1993
                                return GetMemberRefToken (member);
 
1994
                        default:
 
1995
                                throw new NotSupportedException ();
 
1996
                        }
 
1997
                }
 
1998
        }
 
1999
 
 
2000
        sealed class SignatureWriter : ByteBuffer {
 
2001
 
 
2002
                readonly MetadataBuilder metadata;
 
2003
 
 
2004
                public SignatureWriter (MetadataBuilder metadata)
 
2005
                        : base (6)
 
2006
                {
 
2007
                        this.metadata = metadata;
 
2008
                }
 
2009
 
 
2010
                public void WriteElementType (ElementType element_type)
 
2011
                {
 
2012
                        WriteByte ((byte) element_type);
 
2013
                }
 
2014
 
 
2015
                public void WriteUTF8String (string @string)
 
2016
                {
 
2017
                        if (@string == null) {
 
2018
                                WriteByte (0xff);
 
2019
                                return;
 
2020
                        }
 
2021
 
 
2022
                        var bytes = Encoding.UTF8.GetBytes (@string);
 
2023
                        WriteCompressedUInt32 ((uint) bytes.Length);
 
2024
                        WriteBytes (bytes);
 
2025
                }
 
2026
 
 
2027
                public void WriteMethodSignature (IMethodSignature method)
 
2028
                {
 
2029
                        byte calling_convention = (byte) method.CallingConvention;
 
2030
                        if (method.HasThis)
 
2031
                                calling_convention |= 0x20;
 
2032
                        if (method.ExplicitThis)
 
2033
                                calling_convention |= 0x40;
 
2034
 
 
2035
                        var generic_provider = method as IGenericParameterProvider;
 
2036
                        var generic_arity = generic_provider != null && generic_provider.HasGenericParameters
 
2037
                                ? generic_provider.GenericParameters.Count
 
2038
                                : 0;
 
2039
 
 
2040
                        if (generic_arity > 0)
 
2041
                                calling_convention |= 0x10;
 
2042
 
 
2043
                        var param_count = method.HasParameters ? method.Parameters.Count : 0;
 
2044
 
 
2045
                        WriteByte (calling_convention);
 
2046
 
 
2047
                        if (generic_arity > 0)
 
2048
                                WriteCompressedUInt32 ((uint) generic_arity);
 
2049
 
 
2050
                        WriteCompressedUInt32 ((uint) param_count);
 
2051
                        WriteTypeSignature (method.ReturnType);
 
2052
 
 
2053
                        if (param_count == 0)
 
2054
                                return;
 
2055
 
 
2056
                        var parameters = method.Parameters;
 
2057
 
 
2058
                        for (int i = 0; i < param_count; i++)
 
2059
                                WriteTypeSignature (parameters [i].ParameterType);
 
2060
                }
 
2061
 
 
2062
                uint MakeTypeDefOrRefCodedRID (TypeReference type)
 
2063
                {
 
2064
                        return CodedIndex.TypeDefOrRef.CompressMetadataToken (metadata.LookupToken (type));
 
2065
                }
 
2066
 
 
2067
                public void WriteTypeSignature (TypeReference type)
 
2068
                {
 
2069
                        if (type == null)
 
2070
                                throw new ArgumentNullException ();
 
2071
 
 
2072
                        var etype = type.etype;
 
2073
 
 
2074
                        switch (etype) {
 
2075
                        case ElementType.MVar:
 
2076
                        case ElementType.Var: {
 
2077
                                var generic_parameter = (GenericParameter) type;
 
2078
 
 
2079
                                WriteElementType (etype);
 
2080
                                var position = generic_parameter.Position;
 
2081
                                if (position == -1)
 
2082
                                        throw new NotSupportedException ();
 
2083
 
 
2084
                                WriteCompressedUInt32 ((uint) position);
 
2085
                                break;
 
2086
                        }
 
2087
 
 
2088
                        case ElementType.GenericInst: {
 
2089
                                var generic_instance = (GenericInstanceType) type;
 
2090
                                WriteElementType (ElementType.GenericInst);
 
2091
                                WriteElementType (generic_instance.IsValueType ? ElementType.ValueType : ElementType.Class);
 
2092
                                WriteCompressedUInt32 (MakeTypeDefOrRefCodedRID (generic_instance.ElementType));
 
2093
 
 
2094
                                WriteGenericInstanceSignature (generic_instance);
 
2095
                                break;
 
2096
                        }
 
2097
 
 
2098
                        case ElementType.Ptr:
 
2099
                        case ElementType.ByRef:
 
2100
                        case ElementType.Pinned:
 
2101
                        case ElementType.Sentinel: {
 
2102
                                var type_spec = (TypeSpecification) type;
 
2103
                                WriteElementType (etype);
 
2104
                                WriteTypeSignature (type_spec.ElementType);
 
2105
                                break;
 
2106
                        }
 
2107
 
 
2108
                        case ElementType.FnPtr: {
 
2109
                                var fptr = (FunctionPointerType) type;
 
2110
                                WriteElementType (ElementType.FnPtr);
 
2111
                                WriteMethodSignature (fptr);
 
2112
                                break;
 
2113
                        }
 
2114
 
 
2115
                        case ElementType.CModOpt:
 
2116
                        case ElementType.CModReqD: {
 
2117
                                var modifier = (IModifierType) type;
 
2118
                                WriteModifierSignature (etype, modifier);
 
2119
                                break;
 
2120
                        }
 
2121
 
 
2122
                        case ElementType.Array: {
 
2123
                                var array = (ArrayType) type;
 
2124
                                if (!array.IsVector) {
 
2125
                                        WriteArrayTypeSignature (array);
 
2126
                                        break;
 
2127
                                }
 
2128
 
 
2129
                                WriteElementType (ElementType.SzArray);
 
2130
                                WriteTypeSignature (array.ElementType);
 
2131
                                break;
 
2132
                        }
 
2133
 
 
2134
                        case ElementType.None: {
 
2135
                                WriteElementType (type.IsValueType ? ElementType.ValueType : ElementType.Class);
 
2136
                                WriteCompressedUInt32 (MakeTypeDefOrRefCodedRID (type));
 
2137
                                break;
 
2138
                        }
 
2139
 
 
2140
                        default:
 
2141
                                if (!TryWriteElementType (type))
 
2142
                                        throw new NotSupportedException ();
 
2143
 
 
2144
                                break;
 
2145
 
 
2146
                        }
 
2147
                }
 
2148
 
 
2149
                void WriteArrayTypeSignature (ArrayType array)
 
2150
                {
 
2151
                        WriteElementType (ElementType.Array);
 
2152
                        WriteTypeSignature (array.ElementType);
 
2153
 
 
2154
                        var dimensions = array.Dimensions;
 
2155
                        var rank = dimensions.Count;
 
2156
 
 
2157
                        WriteCompressedUInt32 ((uint) rank);
 
2158
 
 
2159
                        var sized = 0;
 
2160
                        var lbounds = 0;
 
2161
 
 
2162
                        for (int i = 0; i < rank; i++) {
 
2163
                                var dimension = dimensions [i];
 
2164
 
 
2165
                                if (dimension.UpperBound.HasValue) {
 
2166
                                        sized++;
 
2167
                                        lbounds++;
 
2168
                                } else if (dimension.LowerBound.HasValue)
 
2169
                                        lbounds++;
 
2170
                        }
 
2171
 
 
2172
                        var sizes = new int [sized];
 
2173
                        var low_bounds = new int [lbounds];
 
2174
 
 
2175
                        for (int i = 0; i < lbounds; i++) {
 
2176
                                var dimension = dimensions [i];
 
2177
                                low_bounds [i] = dimension.LowerBound.GetValueOrDefault ();
 
2178
                                if (dimension.UpperBound.HasValue)
 
2179
                                        sizes [i] = dimension.UpperBound.Value - low_bounds [i] + 1;
 
2180
                        }
 
2181
 
 
2182
                        WriteCompressedUInt32 ((uint) sized);
 
2183
                        for (int i = 0; i < sized; i++)
 
2184
                                WriteCompressedUInt32 ((uint) sizes [i]);
 
2185
 
 
2186
                        WriteCompressedUInt32 ((uint) lbounds);
 
2187
                        for (int i = 0; i < lbounds; i++)
 
2188
                                WriteCompressedInt32 (low_bounds [i]);
 
2189
                }
 
2190
 
 
2191
                public void WriteGenericInstanceSignature (IGenericInstance instance)
 
2192
                {
 
2193
                        var generic_arguments = instance.GenericArguments;
 
2194
                        var arity = generic_arguments.Count;
 
2195
 
 
2196
                        WriteCompressedUInt32 ((uint) arity);
 
2197
                        for (int i = 0; i < arity; i++)
 
2198
                                WriteTypeSignature (generic_arguments [i]);
 
2199
                }
 
2200
 
 
2201
                void WriteModifierSignature (ElementType element_type, IModifierType type)
 
2202
                {
 
2203
                        WriteElementType (element_type);
 
2204
                        WriteCompressedUInt32 (MakeTypeDefOrRefCodedRID (type.ModifierType));
 
2205
                        WriteTypeSignature (type.ElementType);
 
2206
                }
 
2207
 
 
2208
                bool TryWriteElementType (TypeReference type)
 
2209
                {
 
2210
                        var element = type.etype;
 
2211
 
 
2212
                        if (element == ElementType.None)
 
2213
                                return false;
 
2214
 
 
2215
                        WriteElementType (element);
 
2216
                        return true;
 
2217
                }
 
2218
 
 
2219
                public void WriteConstantString (string value)
 
2220
                {
 
2221
                        WriteBytes (Encoding.Unicode.GetBytes (value));
 
2222
                }
 
2223
 
 
2224
                public void WriteConstantPrimitive (object value)
 
2225
                {
 
2226
                        WritePrimitiveValue (value);
 
2227
                }
 
2228
 
 
2229
                public void WriteCustomAttributeConstructorArguments (CustomAttribute attribute)
 
2230
                {
 
2231
                        if (!attribute.HasConstructorArguments)
 
2232
                                return;
 
2233
 
 
2234
                        var arguments = attribute.ConstructorArguments;
 
2235
                        var parameters = attribute.Constructor.Parameters;
 
2236
 
 
2237
                        if (parameters.Count != arguments.Count)
 
2238
                                throw new InvalidOperationException ();
 
2239
 
 
2240
                        for (int i = 0; i < arguments.Count; i++)
 
2241
                                WriteCustomAttributeFixedArgument (parameters [i].ParameterType, arguments [i]);
 
2242
                }
 
2243
 
 
2244
                void WriteCustomAttributeFixedArgument (TypeReference type, CustomAttributeArgument argument)
 
2245
                {
 
2246
                        if (type.IsArray) {
 
2247
                                WriteCustomAttributeFixedArrayArgument ((ArrayType) type, argument);
 
2248
                                return;
 
2249
                        }
 
2250
 
 
2251
                        WriteCustomAttributeElement (type, argument);
 
2252
                }
 
2253
 
 
2254
                void WriteCustomAttributeFixedArrayArgument (ArrayType type, CustomAttributeArgument argument)
 
2255
                {
 
2256
                        var values = argument.Value as CustomAttributeArgument [];
 
2257
 
 
2258
                        if (values == null) {
 
2259
                                WriteUInt32 (0xffffffff);
 
2260
                                return;
 
2261
                        }
 
2262
 
 
2263
                        WriteInt32 (values.Length);
 
2264
 
 
2265
                        if (values.Length == 0)
 
2266
                                return;
 
2267
 
 
2268
                        var element_type = type.ElementType;
 
2269
 
 
2270
                        for (int i = 0; i < values.Length; i++)
 
2271
                                WriteCustomAttributeElement (element_type, values [i]);
 
2272
                }
 
2273
 
 
2274
                void WriteCustomAttributeElement (TypeReference type, CustomAttributeArgument argument)
 
2275
                {
 
2276
                        if (type.IsArray) {
 
2277
                                WriteCustomAttributeFixedArrayArgument ((ArrayType) type, argument);
 
2278
                                return;
 
2279
                        }
 
2280
 
 
2281
                        if (type.etype == ElementType.Object) {
 
2282
                                WriteCustomAttributeFieldOrPropType (argument.Type);
 
2283
                                WriteCustomAttributeElement (argument.Type, argument);
 
2284
                                return;
 
2285
                        }
 
2286
 
 
2287
                        WriteCustomAttributeValue (type, argument.Value);
 
2288
                }
 
2289
 
 
2290
                void WriteCustomAttributeValue (TypeReference type, object value)
 
2291
                {
 
2292
                        var etype = type.etype;
 
2293
 
 
2294
                        switch (etype) {
 
2295
                        case ElementType.String:
 
2296
                                var @string = (string) value;
 
2297
                                if (@string == null)
 
2298
                                        WriteByte (0xff);
 
2299
                                else
 
2300
                                        WriteUTF8String (@string);
 
2301
                                break;
 
2302
                        case ElementType.None:
 
2303
                                if (type.IsTypeOf ("System", "Type"))
 
2304
                                        WriteTypeReference ((TypeReference) value);
 
2305
                                else
 
2306
                                        WriteCustomAttributeEnumValue (type, value);
 
2307
                                break;
 
2308
                        default:
 
2309
                                WritePrimitiveValue (value);
 
2310
                                break;
 
2311
                        }
 
2312
                }
 
2313
 
 
2314
                void WritePrimitiveValue (object value)
 
2315
                {
 
2316
                        if (value == null)
 
2317
                                throw new ArgumentNullException ();
 
2318
 
 
2319
                        switch (Type.GetTypeCode (value.GetType ())) {
 
2320
                        case TypeCode.Boolean:
 
2321
                                WriteByte ((byte) (((bool) value) ? 1 : 0));
 
2322
                                break;
 
2323
                        case TypeCode.Byte:
 
2324
                                WriteByte ((byte) value);
 
2325
                                break;
 
2326
                        case TypeCode.SByte:
 
2327
                                WriteSByte ((sbyte) value);
 
2328
                                break;
 
2329
                        case TypeCode.Int16:
 
2330
                                WriteInt16 ((short) value);
 
2331
                                break;
 
2332
                        case TypeCode.UInt16:
 
2333
                                WriteUInt16 ((ushort) value);
 
2334
                                break;
 
2335
                        case TypeCode.Char:
 
2336
                                WriteInt16 ((short) (char) value);
 
2337
                                break;
 
2338
                        case TypeCode.Int32:
 
2339
                                WriteInt32 ((int) value);
 
2340
                                break;
 
2341
                        case TypeCode.UInt32:
 
2342
                                WriteUInt32 ((uint) value);
 
2343
                                break;
 
2344
                        case TypeCode.Single:
 
2345
                                WriteSingle ((float) value);
 
2346
                                break;
 
2347
                        case TypeCode.Int64:
 
2348
                                WriteInt64 ((long) value);
 
2349
                                break;
 
2350
                        case TypeCode.UInt64:
 
2351
                                WriteUInt64 ((ulong) value);
 
2352
                                break;
 
2353
                        case TypeCode.Double:
 
2354
                                WriteDouble ((double) value);
 
2355
                                break;
 
2356
                        default:
 
2357
                                throw new NotSupportedException (value.GetType ().FullName);
 
2358
                        }
 
2359
                }
 
2360
 
 
2361
                void WriteCustomAttributeEnumValue (TypeReference enum_type, object value)
 
2362
                {
 
2363
                        var type = enum_type.CheckedResolve ();
 
2364
                        if (!type.IsEnum)
 
2365
                                throw new ArgumentException ();
 
2366
 
 
2367
                        WriteCustomAttributeValue (type.GetEnumUnderlyingType (), value);
 
2368
                }
 
2369
 
 
2370
                void WriteCustomAttributeFieldOrPropType (TypeReference type)
 
2371
                {
 
2372
                        if (type.IsArray) {
 
2373
                                var array = (ArrayType) type;
 
2374
                                WriteElementType (ElementType.SzArray);
 
2375
                                WriteCustomAttributeFieldOrPropType (array.ElementType);
 
2376
                                return;
 
2377
                        }
 
2378
 
 
2379
                        var etype = type.etype;
 
2380
 
 
2381
                        switch (etype) {
 
2382
                        case ElementType.Object:
 
2383
                                WriteElementType (ElementType.Boxed);
 
2384
                                return;
 
2385
                        case ElementType.None:
 
2386
                                if (type.IsTypeOf ("System", "Type"))
 
2387
                                        WriteElementType (ElementType.Type);
 
2388
                                else {
 
2389
                                        WriteElementType (ElementType.Enum);
 
2390
                                        WriteTypeReference (type);
 
2391
                                }
 
2392
                                return;
 
2393
                        default:
 
2394
                                WriteElementType (etype);
 
2395
                                return;
 
2396
                        }
 
2397
                }
 
2398
 
 
2399
                public void WriteCustomAttributeNamedArguments (CustomAttribute attribute)
 
2400
                {
 
2401
                        var count = GetNamedArgumentCount (attribute);
 
2402
 
 
2403
                        WriteUInt16 ((ushort) count);
 
2404
 
 
2405
                        if (count == 0)
 
2406
                                return;
 
2407
 
 
2408
                        WriteICustomAttributeNamedArguments (attribute);
 
2409
                }
 
2410
 
 
2411
                static int GetNamedArgumentCount (ICustomAttribute attribute)
 
2412
                {
 
2413
                        int count = 0;
 
2414
 
 
2415
                        if (attribute.HasFields)
 
2416
                                count += attribute.Fields.Count;
 
2417
 
 
2418
                        if (attribute.HasProperties)
 
2419
                                count += attribute.Properties.Count;
 
2420
 
 
2421
                        return count;
 
2422
                }
 
2423
 
 
2424
                void WriteICustomAttributeNamedArguments (ICustomAttribute attribute)
 
2425
                {
 
2426
                        if (attribute.HasFields)
 
2427
                                WriteCustomAttributeNamedArguments (0x53, attribute.Fields);
 
2428
 
 
2429
                        if (attribute.HasProperties)
 
2430
                                WriteCustomAttributeNamedArguments (0x54, attribute.Properties);
 
2431
                }
 
2432
 
 
2433
                void WriteCustomAttributeNamedArguments (byte kind, Collection<CustomAttributeNamedArgument> named_arguments)
 
2434
                {
 
2435
                        for (int i = 0; i < named_arguments.Count; i++)
 
2436
                                WriteCustomAttributeNamedArgument (kind, named_arguments [i]);
 
2437
                }
 
2438
 
 
2439
                void WriteCustomAttributeNamedArgument (byte kind, CustomAttributeNamedArgument named_argument)
 
2440
                {
 
2441
                        var argument = named_argument.Argument;
 
2442
 
 
2443
                        WriteByte (kind);
 
2444
                        WriteCustomAttributeFieldOrPropType (argument.Type);
 
2445
                        WriteUTF8String (named_argument.Name);
 
2446
                        WriteCustomAttributeFixedArgument (argument.Type, argument);
 
2447
                }
 
2448
 
 
2449
                public void WriteSecurityAttribute (SecurityAttribute attribute)
 
2450
                {
 
2451
                        WriteTypeReference (attribute.AttributeType);
 
2452
 
 
2453
                        var count = GetNamedArgumentCount (attribute);
 
2454
 
 
2455
                        if (count == 0) {
 
2456
                                WriteCompressedUInt32 (0); // length
 
2457
                                WriteCompressedUInt32 (0); // count
 
2458
                                return;
 
2459
                        }
 
2460
 
 
2461
            var buffer = new SignatureWriter (metadata);
 
2462
                        buffer.WriteCompressedUInt32 ((uint) count);
 
2463
                        buffer.WriteICustomAttributeNamedArguments (attribute);
 
2464
 
 
2465
                        WriteCompressedUInt32 ((uint) buffer.length);
 
2466
                        WriteBytes (buffer);
 
2467
                }
 
2468
 
 
2469
                void WriteTypeReference (TypeReference type)
 
2470
                {
 
2471
                        WriteUTF8String (TypeParser.ToParseable (type));
 
2472
                }
 
2473
 
 
2474
                public void WriteMarshalInfo (MarshalInfo marshal_info)
 
2475
                {
 
2476
                        WriteNativeType (marshal_info.native);
 
2477
 
 
2478
                        switch (marshal_info.native) {
 
2479
                        case NativeType.Array: {
 
2480
                                var array = (ArrayMarshalInfo) marshal_info;
 
2481
                                if (array.element_type != NativeType.None)
 
2482
                                        WriteNativeType (array.element_type);
 
2483
                                if (array.size_parameter_index > -1)
 
2484
                                        WriteCompressedUInt32 ((uint) array.size_parameter_index);
 
2485
                                if (array.size > -1)
 
2486
                                        WriteCompressedUInt32 ((uint) array.size);
 
2487
                                if (array.size_parameter_multiplier > -1)
 
2488
                                        WriteCompressedUInt32 ((uint) array.size_parameter_multiplier);
 
2489
                                return;
 
2490
                        }
 
2491
                        case NativeType.SafeArray: {
 
2492
                                var array = (SafeArrayMarshalInfo) marshal_info;
 
2493
                                if (array.element_type != VariantType.None)
 
2494
                                        WriteVariantType (array.element_type);
 
2495
                                return;
 
2496
                        }
 
2497
                        case NativeType.FixedArray: {
 
2498
                                var array = (FixedArrayMarshalInfo) marshal_info;
 
2499
                                if (array.size > -1)
 
2500
                                        WriteCompressedUInt32 ((uint) array.size);
 
2501
                                if (array.element_type != NativeType.None)
 
2502
                                        WriteNativeType (array.element_type);
 
2503
                                return;
 
2504
                        }
 
2505
                        case NativeType.FixedSysString:
 
2506
                                var sys_string = (FixedSysStringMarshalInfo) marshal_info;
 
2507
                                if (sys_string.size > -1)
 
2508
                                        WriteCompressedUInt32 ((uint) sys_string.size);
 
2509
                                return;
 
2510
                        case NativeType.CustomMarshaler:
 
2511
                                var marshaler = (CustomMarshalInfo) marshal_info;
 
2512
                                WriteUTF8String (marshaler.guid != Guid.Empty ? marshaler.guid.ToString () : string.Empty);
 
2513
                                WriteUTF8String (marshaler.unmanaged_type);
 
2514
                                WriteTypeReference (marshaler.managed_type);
 
2515
                                WriteUTF8String (marshaler.cookie);
 
2516
                                return;
 
2517
                        }
 
2518
                }
 
2519
 
 
2520
                void WriteNativeType (NativeType native)
 
2521
                {
 
2522
                        WriteByte ((byte) native);
 
2523
                }
 
2524
 
 
2525
                void WriteVariantType (VariantType variant)
 
2526
                {
 
2527
                        WriteByte ((byte) variant);
 
2528
                }
 
2529
        }
 
2530
 
 
2531
#endif
 
2532
 
 
2533
}