| | | 1 | | // Licensed to the .NET Foundation under one or more agreements. |
| | | 2 | | // The .NET Foundation licenses this file to you under the MIT license. |
| | | 3 | | |
| | | 4 | | using System.Reflection.Internal; |
| | | 5 | | |
| | | 6 | | namespace System.Reflection.Metadata.Ecma335 |
| | | 7 | | { |
| | | 8 | | internal readonly struct DocumentTableReader |
| | | 9 | | { |
| | | 10 | | internal readonly int NumberOfRows; |
| | | 11 | | |
| | | 12 | | private readonly bool _isGuidHeapRefSizeSmall; |
| | | 13 | | private readonly bool _isBlobHeapRefSizeSmall; |
| | | 14 | | |
| | | 15 | | private const int NameOffset = 0; |
| | | 16 | | private readonly int _hashAlgorithmOffset; |
| | | 17 | | private readonly int _hashOffset; |
| | | 18 | | private readonly int _languageOffset; |
| | | 19 | | |
| | | 20 | | internal readonly int RowSize; |
| | | 21 | | internal readonly MemoryBlock Block; |
| | | 22 | | |
| | | 23 | | internal DocumentTableReader( |
| | | 24 | | int numberOfRows, |
| | | 25 | | int guidHeapRefSize, |
| | | 26 | | int blobHeapRefSize, |
| | | 27 | | MemoryBlock containingBlock, |
| | | 28 | | int containingBlockOffset) |
| | | 29 | | { |
| | | 30 | | NumberOfRows = numberOfRows; |
| | | 31 | | _isGuidHeapRefSizeSmall = guidHeapRefSize == 2; |
| | | 32 | | _isBlobHeapRefSizeSmall = blobHeapRefSize == 2; |
| | | 33 | | |
| | | 34 | | _hashAlgorithmOffset = NameOffset + blobHeapRefSize; |
| | | 35 | | _hashOffset = _hashAlgorithmOffset + guidHeapRefSize; |
| | | 36 | | _languageOffset = _hashOffset + blobHeapRefSize; |
| | | 37 | | RowSize = _languageOffset + guidHeapRefSize; |
| | | 38 | | |
| | | 39 | | Block = containingBlock.GetMemoryBlockAt(containingBlockOffset, RowSize * numberOfRows); |
| | | 40 | | } |
| | | 41 | | |
| | | 42 | | internal DocumentNameBlobHandle GetName(DocumentHandle handle) |
| | | 43 | | { |
| | | 44 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 45 | | return DocumentNameBlobHandle.FromOffset(Block.PeekHeapReference(rowOffset + NameOffset, _isBlobHeapRefSizeS |
| | | 46 | | } |
| | | 47 | | |
| | | 48 | | internal GuidHandle GetHashAlgorithm(DocumentHandle handle) |
| | | 49 | | { |
| | | 50 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 51 | | return GuidHandle.FromIndex(Block.PeekHeapReference(rowOffset + _hashAlgorithmOffset, _isGuidHeapRefSizeSmal |
| | | 52 | | } |
| | | 53 | | |
| | | 54 | | internal BlobHandle GetHash(DocumentHandle handle) |
| | | 55 | | { |
| | | 56 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 57 | | return BlobHandle.FromOffset(Block.PeekHeapReference(rowOffset + _hashOffset, _isBlobHeapRefSizeSmall)); |
| | | 58 | | } |
| | | 59 | | |
| | | 60 | | internal GuidHandle GetLanguage(DocumentHandle handle) |
| | | 61 | | { |
| | | 62 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 63 | | return GuidHandle.FromIndex(Block.PeekHeapReference(rowOffset + _languageOffset, _isGuidHeapRefSizeSmall)); |
| | | 64 | | } |
| | | 65 | | } |
| | | 66 | | |
| | | 67 | | internal readonly struct MethodDebugInformationTableReader |
| | | 68 | | { |
| | | 69 | | internal readonly int NumberOfRows; |
| | | 70 | | |
| | | 71 | | private readonly bool _isDocumentRefSmall; |
| | | 72 | | private readonly bool _isBlobHeapRefSizeSmall; |
| | | 73 | | |
| | | 74 | | private const int DocumentOffset = 0; |
| | | 75 | | private readonly int _sequencePointsOffset; |
| | | 76 | | |
| | | 77 | | internal readonly int RowSize; |
| | | 78 | | internal readonly MemoryBlock Block; |
| | | 79 | | |
| | | 80 | | internal MethodDebugInformationTableReader( |
| | | 81 | | int numberOfRows, |
| | | 82 | | int documentRefSize, |
| | | 83 | | int blobHeapRefSize, |
| | | 84 | | MemoryBlock containingBlock, |
| | | 85 | | int containingBlockOffset) |
| | | 86 | | { |
| | | 87 | | NumberOfRows = numberOfRows; |
| | | 88 | | _isDocumentRefSmall = documentRefSize == 2; |
| | | 89 | | _isBlobHeapRefSizeSmall = blobHeapRefSize == 2; |
| | | 90 | | |
| | | 91 | | _sequencePointsOffset = DocumentOffset + documentRefSize; |
| | | 92 | | RowSize = _sequencePointsOffset + blobHeapRefSize; |
| | | 93 | | |
| | | 94 | | Block = containingBlock.GetMemoryBlockAt(containingBlockOffset, RowSize * numberOfRows); |
| | | 95 | | } |
| | | 96 | | |
| | | 97 | | internal DocumentHandle GetDocument(MethodDebugInformationHandle handle) |
| | | 98 | | { |
| | | 99 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 100 | | return DocumentHandle.FromRowId(Block.PeekReference(rowOffset + DocumentOffset, _isDocumentRefSmall)); |
| | | 101 | | } |
| | | 102 | | |
| | | 103 | | internal BlobHandle GetSequencePoints(MethodDebugInformationHandle handle) |
| | | 104 | | { |
| | | 105 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 106 | | return BlobHandle.FromOffset(Block.PeekHeapReference(rowOffset + _sequencePointsOffset, _isBlobHeapRefSizeSm |
| | | 107 | | } |
| | | 108 | | } |
| | | 109 | | |
| | | 110 | | internal readonly struct LocalScopeTableReader |
| | | 111 | | { |
| | | 112 | | internal readonly int NumberOfRows; |
| | | 113 | | |
| | | 114 | | private readonly bool _isMethodRefSmall; |
| | | 115 | | private readonly bool _isImportScopeRefSmall; |
| | | 116 | | private readonly bool _isLocalConstantRefSmall; |
| | | 117 | | private readonly bool _isLocalVariableRefSmall; |
| | | 118 | | |
| | | 119 | | private const int MethodOffset = 0; |
| | | 120 | | private readonly int _importScopeOffset; |
| | | 121 | | private readonly int _variableListOffset; |
| | | 122 | | private readonly int _constantListOffset; |
| | | 123 | | private readonly int _startOffsetOffset; |
| | | 124 | | private readonly int _lengthOffset; |
| | | 125 | | |
| | | 126 | | internal readonly int RowSize; |
| | | 127 | | internal readonly MemoryBlock Block; |
| | | 128 | | |
| | | 129 | | internal LocalScopeTableReader( |
| | | 130 | | int numberOfRows, |
| | | 131 | | bool declaredSorted, |
| | | 132 | | int methodRefSize, |
| | | 133 | | int importScopeRefSize, |
| | | 134 | | int localVariableRefSize, |
| | | 135 | | int localConstantRefSize, |
| | | 136 | | MemoryBlock containingBlock, |
| | | 137 | | int containingBlockOffset) |
| | | 138 | | { |
| | | 139 | | NumberOfRows = numberOfRows; |
| | | 140 | | _isMethodRefSmall = methodRefSize == 2; |
| | | 141 | | _isImportScopeRefSmall = importScopeRefSize == 2; |
| | | 142 | | _isLocalVariableRefSmall = localVariableRefSize == 2; |
| | | 143 | | _isLocalConstantRefSmall = localConstantRefSize == 2; |
| | | 144 | | |
| | | 145 | | _importScopeOffset = MethodOffset + methodRefSize; |
| | | 146 | | _variableListOffset = _importScopeOffset + importScopeRefSize; |
| | | 147 | | _constantListOffset = _variableListOffset + localVariableRefSize; |
| | | 148 | | _startOffsetOffset = _constantListOffset + localConstantRefSize; |
| | | 149 | | _lengthOffset = _startOffsetOffset + sizeof(uint); |
| | | 150 | | RowSize = _lengthOffset + sizeof(uint); |
| | | 151 | | |
| | | 152 | | Block = containingBlock.GetMemoryBlockAt(containingBlockOffset, RowSize * numberOfRows); |
| | | 153 | | |
| | | 154 | | if (numberOfRows > 0 && !declaredSorted) |
| | | 155 | | { |
| | | 156 | | Throw.TableNotSorted(TableIndex.LocalScope); |
| | | 157 | | } |
| | | 158 | | } |
| | | 159 | | |
| | | 160 | | internal MethodDefinitionHandle GetMethod(int rowId) |
| | | 161 | | { |
| | | 162 | | int rowOffset = (rowId - 1) * RowSize; |
| | | 163 | | return MethodDefinitionHandle.FromRowId(Block.PeekReference(rowOffset + MethodOffset, _isMethodRefSmall)); |
| | | 164 | | } |
| | | 165 | | |
| | | 166 | | internal ImportScopeHandle GetImportScope(LocalScopeHandle handle) |
| | | 167 | | { |
| | | 168 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 169 | | return ImportScopeHandle.FromRowId(Block.PeekReference(rowOffset + _importScopeOffset, _isImportScopeRefSmal |
| | | 170 | | } |
| | | 171 | | |
| | | 172 | | internal int GetVariableStart(int rowId) |
| | | 173 | | { |
| | | 174 | | int rowOffset = (rowId - 1) * RowSize; |
| | | 175 | | return Block.PeekReference(rowOffset + _variableListOffset, _isLocalVariableRefSmall); |
| | | 176 | | } |
| | | 177 | | |
| | | 178 | | internal int GetConstantStart(int rowId) |
| | | 179 | | { |
| | | 180 | | int rowOffset = (rowId - 1) * RowSize; |
| | | 181 | | return Block.PeekReference(rowOffset + _constantListOffset, _isLocalConstantRefSmall); |
| | | 182 | | } |
| | | 183 | | |
| | | 184 | | internal int GetStartOffset(int rowId) |
| | | 185 | | { |
| | | 186 | | int rowOffset = (rowId - 1) * RowSize; |
| | | 187 | | return Block.PeekInt32(rowOffset + _startOffsetOffset); |
| | | 188 | | } |
| | | 189 | | |
| | | 190 | | internal int GetLength(int rowId) |
| | | 191 | | { |
| | | 192 | | int rowOffset = (rowId - 1) * RowSize; |
| | | 193 | | return Block.PeekInt32(rowOffset + _lengthOffset); |
| | | 194 | | } |
| | | 195 | | |
| | | 196 | | internal int GetEndOffset(int rowId) |
| | | 197 | | { |
| | | 198 | | int rowOffset = (rowId - 1) * RowSize; |
| | | 199 | | |
| | | 200 | | long result = |
| | | 201 | | Block.PeekUInt32(rowOffset + _startOffsetOffset) + |
| | | 202 | | Block.PeekUInt32(rowOffset + _lengthOffset); |
| | | 203 | | |
| | | 204 | | if (unchecked((int)result) != result) |
| | | 205 | | { |
| | | 206 | | Throw.ValueOverflow(); |
| | | 207 | | } |
| | | 208 | | |
| | | 209 | | return (int)result; |
| | | 210 | | } |
| | | 211 | | |
| | | 212 | | internal void GetLocalScopeRange(int methodDefRid, out int firstScopeRowId, out int lastScopeRowId) |
| | | 213 | | { |
| | | 214 | | int startRowNumber, endRowNumber; |
| | | 215 | | Block.BinarySearchReferenceRange( |
| | | 216 | | NumberOfRows, |
| | | 217 | | RowSize, |
| | | 218 | | MethodOffset, |
| | | 219 | | (uint)methodDefRid, |
| | | 220 | | _isMethodRefSmall, |
| | | 221 | | out startRowNumber, |
| | | 222 | | out endRowNumber |
| | | 223 | | ); |
| | | 224 | | |
| | | 225 | | if (startRowNumber == -1) |
| | | 226 | | { |
| | | 227 | | firstScopeRowId = 1; |
| | | 228 | | lastScopeRowId = 0; |
| | | 229 | | } |
| | | 230 | | else |
| | | 231 | | { |
| | | 232 | | firstScopeRowId = startRowNumber + 1; |
| | | 233 | | lastScopeRowId = endRowNumber + 1; |
| | | 234 | | } |
| | | 235 | | } |
| | | 236 | | } |
| | | 237 | | |
| | | 238 | | internal readonly struct LocalVariableTableReader |
| | | 239 | | { |
| | | 240 | | internal readonly int NumberOfRows; |
| | | 241 | | private readonly bool _isStringHeapRefSizeSmall; |
| | | 242 | | private readonly int _attributesOffset; |
| | | 243 | | private readonly int _indexOffset; |
| | | 244 | | private readonly int _nameOffset; |
| | | 245 | | internal readonly int RowSize; |
| | | 246 | | internal readonly MemoryBlock Block; |
| | | 247 | | |
| | | 248 | | internal LocalVariableTableReader( |
| | | 249 | | int numberOfRows, |
| | | 250 | | int stringHeapRefSize, |
| | | 251 | | MemoryBlock containingBlock, |
| | | 252 | | int containingBlockOffset |
| | | 253 | | ) |
| | | 254 | | { |
| | | 255 | | NumberOfRows = numberOfRows; |
| | | 256 | | _isStringHeapRefSizeSmall = stringHeapRefSize == 2; |
| | | 257 | | |
| | | 258 | | _attributesOffset = 0; |
| | | 259 | | _indexOffset = _attributesOffset + sizeof(ushort); |
| | | 260 | | _nameOffset = _indexOffset + sizeof(ushort); |
| | | 261 | | RowSize = _nameOffset + stringHeapRefSize; |
| | | 262 | | |
| | | 263 | | Block = containingBlock.GetMemoryBlockAt(containingBlockOffset, RowSize * numberOfRows); |
| | | 264 | | } |
| | | 265 | | |
| | | 266 | | internal LocalVariableAttributes GetAttributes(LocalVariableHandle handle) |
| | | 267 | | { |
| | | 268 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 269 | | return (LocalVariableAttributes)Block.PeekUInt16(rowOffset + _attributesOffset); |
| | | 270 | | } |
| | | 271 | | |
| | | 272 | | internal ushort GetIndex(LocalVariableHandle handle) |
| | | 273 | | { |
| | | 274 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 275 | | return Block.PeekUInt16(rowOffset + _indexOffset); |
| | | 276 | | } |
| | | 277 | | |
| | | 278 | | internal StringHandle GetName(LocalVariableHandle handle) |
| | | 279 | | { |
| | | 280 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 281 | | return StringHandle.FromOffset(Block.PeekHeapReference(rowOffset + _nameOffset, _isStringHeapRefSizeSmall)); |
| | | 282 | | } |
| | | 283 | | } |
| | | 284 | | |
| | | 285 | | internal readonly struct LocalConstantTableReader |
| | | 286 | | { |
| | | 287 | | internal readonly int NumberOfRows; |
| | | 288 | | private readonly bool _isStringHeapRefSizeSmall; |
| | | 289 | | private readonly bool _isBlobHeapRefSizeSmall; |
| | | 290 | | |
| | | 291 | | private const int NameOffset = 0; |
| | | 292 | | private readonly int _signatureOffset; |
| | | 293 | | |
| | | 294 | | internal readonly int RowSize; |
| | | 295 | | internal readonly MemoryBlock Block; |
| | | 296 | | |
| | | 297 | | internal LocalConstantTableReader( |
| | | 298 | | int numberOfRows, |
| | | 299 | | int stringHeapRefSize, |
| | | 300 | | int blobHeapRefSize, |
| | | 301 | | MemoryBlock containingBlock, |
| | | 302 | | int containingBlockOffset) |
| | | 303 | | { |
| | | 304 | | NumberOfRows = numberOfRows; |
| | | 305 | | _isStringHeapRefSizeSmall = stringHeapRefSize == 2; |
| | | 306 | | _isBlobHeapRefSizeSmall = blobHeapRefSize == 2; |
| | | 307 | | |
| | | 308 | | _signatureOffset = NameOffset + stringHeapRefSize; |
| | | 309 | | RowSize = _signatureOffset + blobHeapRefSize; |
| | | 310 | | |
| | | 311 | | Block = containingBlock.GetMemoryBlockAt(containingBlockOffset, RowSize * numberOfRows); |
| | | 312 | | } |
| | | 313 | | |
| | | 314 | | internal StringHandle GetName(LocalConstantHandle handle) |
| | | 315 | | { |
| | | 316 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 317 | | return StringHandle.FromOffset(Block.PeekHeapReference(rowOffset + NameOffset, _isStringHeapRefSizeSmall)); |
| | | 318 | | } |
| | | 319 | | |
| | | 320 | | internal BlobHandle GetSignature(LocalConstantHandle handle) |
| | | 321 | | { |
| | | 322 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 323 | | return BlobHandle.FromOffset(Block.PeekHeapReference(rowOffset + _signatureOffset, _isBlobHeapRefSizeSmall)) |
| | | 324 | | } |
| | | 325 | | } |
| | | 326 | | |
| | | 327 | | internal readonly struct StateMachineMethodTableReader |
| | | 328 | | { |
| | | 329 | | internal readonly int NumberOfRows; |
| | | 330 | | |
| | | 331 | | private readonly bool _isMethodRefSizeSmall; |
| | | 332 | | |
| | | 333 | | private const int MoveNextMethodOffset = 0; |
| | | 334 | | private readonly int _kickoffMethodOffset; |
| | | 335 | | |
| | | 336 | | internal readonly int RowSize; |
| | | 337 | | internal readonly MemoryBlock Block; |
| | | 338 | | |
| | | 339 | | internal StateMachineMethodTableReader( |
| | | 340 | | int numberOfRows, |
| | | 341 | | bool declaredSorted, |
| | | 342 | | int methodRefSize, |
| | | 343 | | MemoryBlock containingBlock, |
| | | 344 | | int containingBlockOffset) |
| | 0 | 345 | | { |
| | 0 | 346 | | NumberOfRows = numberOfRows; |
| | 0 | 347 | | _isMethodRefSizeSmall = methodRefSize == 2; |
| | | 348 | | |
| | 0 | 349 | | _kickoffMethodOffset = methodRefSize; |
| | 0 | 350 | | RowSize = _kickoffMethodOffset + methodRefSize; |
| | | 351 | | |
| | 0 | 352 | | Block = containingBlock.GetMemoryBlockAt(containingBlockOffset, RowSize * numberOfRows); |
| | | 353 | | |
| | 0 | 354 | | if (numberOfRows > 0 && !declaredSorted) |
| | 0 | 355 | | { |
| | 0 | 356 | | Throw.TableNotSorted(TableIndex.StateMachineMethod); |
| | | 357 | | } |
| | 0 | 358 | | } |
| | | 359 | | |
| | | 360 | | internal MethodDefinitionHandle FindKickoffMethod(int moveNextMethodRowId) |
| | 0 | 361 | | { |
| | 0 | 362 | | int foundRowNumber = |
| | 0 | 363 | | this.Block.BinarySearchReference( |
| | 0 | 364 | | this.NumberOfRows, |
| | 0 | 365 | | this.RowSize, |
| | 0 | 366 | | MoveNextMethodOffset, |
| | 0 | 367 | | (uint)moveNextMethodRowId, |
| | 0 | 368 | | _isMethodRefSizeSmall); |
| | | 369 | | |
| | 0 | 370 | | if (foundRowNumber < 0) |
| | 0 | 371 | | { |
| | 0 | 372 | | return default(MethodDefinitionHandle); |
| | | 373 | | } |
| | | 374 | | |
| | 0 | 375 | | return GetKickoffMethod(foundRowNumber + 1); |
| | 0 | 376 | | } |
| | | 377 | | |
| | | 378 | | private MethodDefinitionHandle GetKickoffMethod(int rowId) |
| | 0 | 379 | | { |
| | 0 | 380 | | int rowOffset = (rowId - 1) * RowSize; |
| | 0 | 381 | | return MethodDefinitionHandle.FromRowId(Block.PeekReference(rowOffset + _kickoffMethodOffset, _isMethodRefSi |
| | 0 | 382 | | } |
| | | 383 | | } |
| | | 384 | | |
| | | 385 | | internal readonly struct ImportScopeTableReader |
| | | 386 | | { |
| | | 387 | | internal readonly int NumberOfRows; |
| | | 388 | | |
| | | 389 | | private readonly bool _isImportScopeRefSizeSmall; |
| | | 390 | | private readonly bool _isBlobHeapRefSizeSmall; |
| | | 391 | | |
| | | 392 | | private const int ParentOffset = 0; |
| | | 393 | | private readonly int _importsOffset; |
| | | 394 | | |
| | | 395 | | internal readonly int RowSize; |
| | | 396 | | internal readonly MemoryBlock Block; |
| | | 397 | | |
| | | 398 | | internal ImportScopeTableReader( |
| | | 399 | | int numberOfRows, |
| | | 400 | | int importScopeRefSize, |
| | | 401 | | int blobHeapRefSize, |
| | | 402 | | MemoryBlock containingBlock, |
| | | 403 | | int containingBlockOffset) |
| | | 404 | | { |
| | | 405 | | NumberOfRows = numberOfRows; |
| | | 406 | | _isImportScopeRefSizeSmall = importScopeRefSize == 2; |
| | | 407 | | _isBlobHeapRefSizeSmall = blobHeapRefSize == 2; |
| | | 408 | | |
| | | 409 | | _importsOffset = ParentOffset + importScopeRefSize; |
| | | 410 | | RowSize = _importsOffset + blobHeapRefSize; |
| | | 411 | | |
| | | 412 | | Block = containingBlock.GetMemoryBlockAt(containingBlockOffset, RowSize * numberOfRows); |
| | | 413 | | } |
| | | 414 | | |
| | | 415 | | internal ImportScopeHandle GetParent(ImportScopeHandle handle) |
| | | 416 | | { |
| | | 417 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 418 | | return ImportScopeHandle.FromRowId(Block.PeekReference(rowOffset + ParentOffset, _isImportScopeRefSizeSmall) |
| | | 419 | | } |
| | | 420 | | |
| | | 421 | | internal BlobHandle GetImports(ImportScopeHandle handle) |
| | | 422 | | { |
| | | 423 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 424 | | return BlobHandle.FromOffset(Block.PeekHeapReference(rowOffset + _importsOffset, _isBlobHeapRefSizeSmall)); |
| | | 425 | | } |
| | | 426 | | } |
| | | 427 | | |
| | | 428 | | internal readonly struct CustomDebugInformationTableReader |
| | | 429 | | { |
| | | 430 | | internal readonly int NumberOfRows; |
| | | 431 | | |
| | | 432 | | private readonly bool _isHasCustomDebugInformationRefSizeSmall; |
| | | 433 | | private readonly bool _isGuidHeapRefSizeSmall; |
| | | 434 | | private readonly bool _isBlobHeapRefSizeSmall; |
| | | 435 | | |
| | | 436 | | private const int ParentOffset = 0; |
| | | 437 | | private readonly int _kindOffset; |
| | | 438 | | private readonly int _valueOffset; |
| | | 439 | | |
| | | 440 | | internal readonly int RowSize; |
| | | 441 | | internal readonly MemoryBlock Block; |
| | | 442 | | |
| | | 443 | | internal CustomDebugInformationTableReader( |
| | | 444 | | int numberOfRows, |
| | | 445 | | bool declaredSorted, |
| | | 446 | | int hasCustomDebugInformationRefSize, |
| | | 447 | | int guidHeapRefSize, |
| | | 448 | | int blobHeapRefSize, |
| | | 449 | | MemoryBlock containingBlock, |
| | | 450 | | int containingBlockOffset) |
| | | 451 | | { |
| | | 452 | | NumberOfRows = numberOfRows; |
| | | 453 | | _isHasCustomDebugInformationRefSizeSmall = hasCustomDebugInformationRefSize == 2; |
| | | 454 | | _isGuidHeapRefSizeSmall = guidHeapRefSize == 2; |
| | | 455 | | _isBlobHeapRefSizeSmall = blobHeapRefSize == 2; |
| | | 456 | | |
| | | 457 | | _kindOffset = ParentOffset + hasCustomDebugInformationRefSize; |
| | | 458 | | _valueOffset = _kindOffset + guidHeapRefSize; |
| | | 459 | | RowSize = _valueOffset + blobHeapRefSize; |
| | | 460 | | |
| | | 461 | | Block = containingBlock.GetMemoryBlockAt(containingBlockOffset, RowSize * numberOfRows); |
| | | 462 | | |
| | | 463 | | if (numberOfRows > 0 && !declaredSorted) |
| | | 464 | | { |
| | | 465 | | Throw.TableNotSorted(TableIndex.CustomDebugInformation); |
| | | 466 | | } |
| | | 467 | | } |
| | | 468 | | |
| | | 469 | | internal EntityHandle GetParent(CustomDebugInformationHandle handle) |
| | | 470 | | { |
| | | 471 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 472 | | return HasCustomDebugInformationTag.ConvertToHandle(Block.PeekTaggedReference(rowOffset + ParentOffset, _isH |
| | | 473 | | } |
| | | 474 | | |
| | | 475 | | internal GuidHandle GetKind(CustomDebugInformationHandle handle) |
| | | 476 | | { |
| | | 477 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 478 | | return GuidHandle.FromIndex(Block.PeekHeapReference(rowOffset + _kindOffset, _isGuidHeapRefSizeSmall)); |
| | | 479 | | } |
| | | 480 | | |
| | | 481 | | internal BlobHandle GetValue(CustomDebugInformationHandle handle) |
| | | 482 | | { |
| | | 483 | | int rowOffset = (handle.RowId - 1) * RowSize; |
| | | 484 | | return BlobHandle.FromOffset(Block.PeekHeapReference(rowOffset + _valueOffset, _isBlobHeapRefSizeSmall)); |
| | | 485 | | } |
| | | 486 | | |
| | | 487 | | internal void GetRange(EntityHandle parentHandle, out int firstImplRowId, out int lastImplRowId) |
| | | 488 | | { |
| | | 489 | | int startRowNumber, endRowNumber; |
| | | 490 | | |
| | | 491 | | Block.BinarySearchReferenceRange( |
| | | 492 | | NumberOfRows, |
| | | 493 | | RowSize, |
| | | 494 | | ParentOffset, |
| | | 495 | | HasCustomDebugInformationTag.ConvertToTag(parentHandle), |
| | | 496 | | _isHasCustomDebugInformationRefSizeSmall, |
| | | 497 | | out startRowNumber, |
| | | 498 | | out endRowNumber |
| | | 499 | | ); |
| | | 500 | | |
| | | 501 | | if (startRowNumber == -1) |
| | | 502 | | { |
| | | 503 | | firstImplRowId = 1; |
| | | 504 | | lastImplRowId = 0; |
| | | 505 | | } |
| | | 506 | | else |
| | | 507 | | { |
| | | 508 | | firstImplRowId = startRowNumber + 1; |
| | | 509 | | lastImplRowId = endRowNumber + 1; |
| | | 510 | | } |
| | | 511 | | } |
| | | 512 | | } |
| | | 513 | | } |
| | | 514 | | |