Exemplo n.º 1
0
        private void InitializeTableReaders(MemoryBlock metadataTablesMemoryBlock, uint[] compressedRowCounts)
        {
            // Only sizes of tables present in metadata are recorded in rowCountCompressedArray.
            // This array contains a slot for each possible table, not just those that are present in the metadata.
            uint[] rowCounts = new uint[TableIndexExtensions.Count];

            // Size of reference tags in each table.
            int[] referenceSizes = new int[TableIndexExtensions.Count];

            ulong validTables = (ulong)this.MetadataTableHeader.ValidTables;
            int compressedRowCountIndex = 0;
            for (int i = 0; i < TableIndexExtensions.Count; i++)
            {
                bool fitsSmall;

                if ((validTables & 1UL) != 0)
                {
                    uint rowCount = compressedRowCounts[compressedRowCountIndex++];
                    rowCounts[i] = rowCount;
                    fitsSmall = rowCount < MetadataStreamConstants.LargeTableRowCount;
                }
                else
                {
                    fitsSmall = true;
                }

                referenceSizes[i] = (fitsSmall && !IsMinimalDelta) ? SmallIndexSize : LargeIndexSize;
                validTables >>= 1;
            }

            this.TableRowCounts = rowCounts;

            // Compute ref sizes for tables that can have pointer tables for it
            int fieldRefSize = referenceSizes[(int)TableIndex.FieldPtr] > SmallIndexSize ? LargeIndexSize : referenceSizes[(int)TableIndex.Field];
            int methodRefSize = referenceSizes[(int)TableIndex.MethodPtr] > SmallIndexSize ? LargeIndexSize : referenceSizes[(int)TableIndex.MethodDef];
            int paramRefSize = referenceSizes[(int)TableIndex.ParamPtr] > SmallIndexSize ? LargeIndexSize : referenceSizes[(int)TableIndex.Param];
            int eventRefSize = referenceSizes[(int)TableIndex.EventPtr] > SmallIndexSize ? LargeIndexSize : referenceSizes[(int)TableIndex.Event];
            int propertyRefSize = referenceSizes[(int)TableIndex.PropertyPtr] > SmallIndexSize ? LargeIndexSize : referenceSizes[(int)TableIndex.Property];

            // Compute the coded token ref sizes
            int typeDefOrRefRefSize = ComputeCodedTokenSize(TypeDefOrRefTag.LargeRowSize, rowCounts, TypeDefOrRefTag.TablesReferenced);
            int hasConstantRefSize = ComputeCodedTokenSize(HasConstantTag.LargeRowSize, rowCounts, HasConstantTag.TablesReferenced);
            int hasCustomAttributeRefSize = ComputeCodedTokenSize(HasCustomAttributeTag.LargeRowSize, rowCounts, HasCustomAttributeTag.TablesReferenced);
            int hasFieldMarshalRefSize = ComputeCodedTokenSize(HasFieldMarshalTag.LargeRowSize, rowCounts, HasFieldMarshalTag.TablesReferenced);
            int hasDeclSecurityRefSize = ComputeCodedTokenSize(HasDeclSecurityTag.LargeRowSize, rowCounts, HasDeclSecurityTag.TablesReferenced);
            int memberRefParentRefSize = ComputeCodedTokenSize(MemberRefParentTag.LargeRowSize, rowCounts, MemberRefParentTag.TablesReferenced);
            int hasSemanticsRefSize = ComputeCodedTokenSize(HasSemanticsTag.LargeRowSize, rowCounts, HasSemanticsTag.TablesReferenced);
            int methodDefOrRefRefSize = ComputeCodedTokenSize(MethodDefOrRefTag.LargeRowSize, rowCounts, MethodDefOrRefTag.TablesReferenced);
            int memberForwardedRefSize = ComputeCodedTokenSize(MemberForwardedTag.LargeRowSize, rowCounts, MemberForwardedTag.TablesReferenced);
            int implementationRefSize = ComputeCodedTokenSize(ImplementationTag.LargeRowSize, rowCounts, ImplementationTag.TablesReferenced);
            int customAttributeTypeRefSize = ComputeCodedTokenSize(CustomAttributeTypeTag.LargeRowSize, rowCounts, CustomAttributeTypeTag.TablesReferenced);
            int resolutionScopeRefSize = ComputeCodedTokenSize(ResolutionScopeTag.LargeRowSize, rowCounts, ResolutionScopeTag.TablesReferenced);
            int typeOrMethodDefRefSize = ComputeCodedTokenSize(TypeOrMethodDefTag.LargeRowSize, rowCounts, TypeOrMethodDefTag.TablesReferenced);

            // Compute HeapRef Sizes
            int stringHeapRefSize = (this.MetadataTableHeader.HeapSizeFlags & HeapSizeFlag.StringHeapLarge) == HeapSizeFlag.StringHeapLarge ? LargeIndexSize : SmallIndexSize;
            int guidHeapRefSize = (this.MetadataTableHeader.HeapSizeFlags & HeapSizeFlag.GuidHeapLarge) == HeapSizeFlag.GuidHeapLarge ? LargeIndexSize : SmallIndexSize;
            int blobHeapRefSize = (this.MetadataTableHeader.HeapSizeFlags & HeapSizeFlag.BlobHeapLarge) == HeapSizeFlag.BlobHeapLarge ? LargeIndexSize : SmallIndexSize;

            // Populate the Table blocks
            int totalRequiredSize = 0;
            this.ModuleTable = new ModuleTableReader(rowCounts[(int)TableIndex.Module], stringHeapRefSize, guidHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ModuleTable.Block.Length;

            this.TypeRefTable = new TypeRefTableReader(rowCounts[(int)TableIndex.TypeRef], resolutionScopeRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.TypeRefTable.Block.Length;

            this.TypeDefTable = new TypeDefTableReader(rowCounts[(int)TableIndex.TypeDef], fieldRefSize, methodRefSize, typeDefOrRefRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.TypeDefTable.Block.Length;

            this.FieldPtrTable = new FieldPtrTableReader(rowCounts[(int)TableIndex.FieldPtr], referenceSizes[(int)TableIndex.Field], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FieldPtrTable.Block.Length;

            this.FieldTable = new FieldTableReader(rowCounts[(int)TableIndex.Field], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FieldTable.Block.Length;

            this.MethodPtrTable = new MethodPtrTableReader(rowCounts[(int)TableIndex.MethodPtr], referenceSizes[(int)TableIndex.MethodDef], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodPtrTable.Block.Length;

            this.MethodDefTable = new MethodTableReader(rowCounts[(int)TableIndex.MethodDef], paramRefSize, stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodDefTable.Block.Length;

            this.ParamPtrTable = new ParamPtrTableReader(rowCounts[(int)TableIndex.ParamPtr], referenceSizes[(int)TableIndex.Param], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ParamPtrTable.Block.Length;

            this.ParamTable = new ParamTableReader(rowCounts[(int)TableIndex.Param], stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ParamTable.Block.Length;

            this.InterfaceImplTable = new InterfaceImplTableReader(rowCounts[(int)TableIndex.InterfaceImpl], IsDeclaredSorted(TableMask.InterfaceImpl), referenceSizes[(int)TableIndex.TypeDef], typeDefOrRefRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.InterfaceImplTable.Block.Length;

            this.MemberRefTable = new MemberRefTableReader(rowCounts[(int)TableIndex.MemberRef], memberRefParentRefSize, stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MemberRefTable.Block.Length;

            this.ConstantTable = new ConstantTableReader(rowCounts[(int)TableIndex.Constant], IsDeclaredSorted(TableMask.Constant), hasConstantRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ConstantTable.Block.Length;

            this.CustomAttributeTable = new CustomAttributeTableReader(rowCounts[(int)TableIndex.CustomAttribute],
                                                                       IsDeclaredSorted(TableMask.CustomAttribute),
                                                                       hasCustomAttributeRefSize,
                                                                       customAttributeTypeRefSize,
                                                                       blobHeapRefSize,
                                                                       metadataTablesMemoryBlock,
                                                                       totalRequiredSize);
            totalRequiredSize += this.CustomAttributeTable.Block.Length;

            this.FieldMarshalTable = new FieldMarshalTableReader(rowCounts[(int)TableIndex.FieldMarshal], IsDeclaredSorted(TableMask.FieldMarshal), hasFieldMarshalRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FieldMarshalTable.Block.Length;

            this.DeclSecurityTable = new DeclSecurityTableReader(rowCounts[(int)TableIndex.DeclSecurity], IsDeclaredSorted(TableMask.DeclSecurity), hasDeclSecurityRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.DeclSecurityTable.Block.Length;

            this.ClassLayoutTable = new ClassLayoutTableReader(rowCounts[(int)TableIndex.ClassLayout], IsDeclaredSorted(TableMask.ClassLayout), referenceSizes[(int)TableIndex.TypeDef], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ClassLayoutTable.Block.Length;

            this.FieldLayoutTable = new FieldLayoutTableReader(rowCounts[(int)TableIndex.FieldLayout], IsDeclaredSorted(TableMask.FieldLayout), referenceSizes[(int)TableIndex.Field], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FieldLayoutTable.Block.Length;

            this.StandAloneSigTable = new StandAloneSigTableReader(rowCounts[(int)TableIndex.StandAloneSig], blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.StandAloneSigTable.Block.Length;

            this.EventMapTable = new EventMapTableReader(rowCounts[(int)TableIndex.EventMap], referenceSizes[(int)TableIndex.TypeDef], eventRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.EventMapTable.Block.Length;

            this.EventPtrTable = new EventPtrTableReader(rowCounts[(int)TableIndex.EventPtr], referenceSizes[(int)TableIndex.Event], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.EventPtrTable.Block.Length;

            this.EventTable = new EventTableReader(rowCounts[(int)TableIndex.Event], typeDefOrRefRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.EventTable.Block.Length;

            this.PropertyMapTable = new PropertyMapTableReader(rowCounts[(int)TableIndex.PropertyMap], referenceSizes[(int)TableIndex.TypeDef], propertyRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.PropertyMapTable.Block.Length;

            this.PropertyPtrTable = new PropertyPtrTableReader(rowCounts[(int)TableIndex.PropertyPtr], referenceSizes[(int)TableIndex.Property], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.PropertyPtrTable.Block.Length;

            this.PropertyTable = new PropertyTableReader(rowCounts[(int)TableIndex.Property], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.PropertyTable.Block.Length;

            this.MethodSemanticsTable = new MethodSemanticsTableReader(rowCounts[(int)TableIndex.MethodSemantics], IsDeclaredSorted(TableMask.MethodSemantics), referenceSizes[(int)TableIndex.MethodDef], hasSemanticsRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodSemanticsTable.Block.Length;

            this.MethodImplTable = new MethodImplTableReader(rowCounts[(int)TableIndex.MethodImpl], IsDeclaredSorted(TableMask.MethodImpl), referenceSizes[(int)TableIndex.TypeDef], methodDefOrRefRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodImplTable.Block.Length;

            this.ModuleRefTable = new ModuleRefTableReader(rowCounts[(int)TableIndex.ModuleRef], stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ModuleRefTable.Block.Length;

            this.TypeSpecTable = new TypeSpecTableReader(rowCounts[(int)TableIndex.TypeSpec], blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.TypeSpecTable.Block.Length;

            this.ImplMapTable = new ImplMapTableReader(rowCounts[(int)TableIndex.ImplMap], IsDeclaredSorted(TableMask.ImplMap), referenceSizes[(int)TableIndex.ModuleRef], memberForwardedRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ImplMapTable.Block.Length;

            this.FieldRvaTable = new FieldRVATableReader(rowCounts[(int)TableIndex.FieldRva], IsDeclaredSorted(TableMask.FieldRva), referenceSizes[(int)TableIndex.Field], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FieldRvaTable.Block.Length;

            this.EncLogTable = new EnCLogTableReader(rowCounts[(int)TableIndex.EncLog], metadataTablesMemoryBlock, totalRequiredSize, this.metadataStreamKind);
            totalRequiredSize += this.EncLogTable.Block.Length;

            this.EncMapTable = new EnCMapTableReader(rowCounts[(int)TableIndex.EncMap], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.EncMapTable.Block.Length;

            this.AssemblyTable = new AssemblyTableReader(rowCounts[(int)TableIndex.Assembly], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.AssemblyTable.Block.Length;

            this.AssemblyProcessorTable = new AssemblyProcessorTableReader(rowCounts[(int)TableIndex.AssemblyProcessor], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.AssemblyProcessorTable.Block.Length;

            this.AssemblyOSTable = new AssemblyOSTableReader(rowCounts[(int)TableIndex.AssemblyOS], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.AssemblyOSTable.Block.Length;

            this.AssemblyRefTable = new AssemblyRefTableReader((int)rowCounts[(int)TableIndex.AssemblyRef], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize, this.metadataKind);
            totalRequiredSize += this.AssemblyRefTable.Block.Length;

            this.AssemblyRefProcessorTable = new AssemblyRefProcessorTableReader(rowCounts[(int)TableIndex.AssemblyRefProcessor], referenceSizes[(int)TableIndex.AssemblyRef], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.AssemblyRefProcessorTable.Block.Length;

            this.AssemblyRefOSTable = new AssemblyRefOSTableReader(rowCounts[(int)TableIndex.AssemblyRefOS], referenceSizes[(int)TableIndex.AssemblyRef], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.AssemblyRefOSTable.Block.Length;

            this.FileTable = new FileTableReader(rowCounts[(int)TableIndex.File], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FileTable.Block.Length;

            this.ExportedTypeTable = new ExportedTypeTableReader(rowCounts[(int)TableIndex.ExportedType], implementationRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ExportedTypeTable.Block.Length;

            this.ManifestResourceTable = new ManifestResourceTableReader(rowCounts[(int)TableIndex.ManifestResource], implementationRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ManifestResourceTable.Block.Length;

            this.NestedClassTable = new NestedClassTableReader(rowCounts[(int)TableIndex.NestedClass], IsDeclaredSorted(TableMask.NestedClass), referenceSizes[(int)TableIndex.TypeDef], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.NestedClassTable.Block.Length;

            this.GenericParamTable = new GenericParamTableReader(rowCounts[(int)TableIndex.GenericParam], IsDeclaredSorted(TableMask.GenericParam), typeOrMethodDefRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.GenericParamTable.Block.Length;

            this.MethodSpecTable = new MethodSpecTableReader(rowCounts[(int)TableIndex.MethodSpec], methodDefOrRefRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodSpecTable.Block.Length;

            this.GenericParamConstraintTable = new GenericParamConstraintTableReader(rowCounts[(int)TableIndex.GenericParamConstraint], IsDeclaredSorted(TableMask.GenericParamConstraint), referenceSizes[(int)TableIndex.GenericParam], typeDefOrRefRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.GenericParamConstraintTable.Block.Length;

            if (totalRequiredSize > metadataTablesMemoryBlock.Length)
            {
                throw new BadImageFormatException(MetadataResources.MetadataTablesTooSmall);
            }
        }
Exemplo n.º 2
0
        private void InitializeTableReaders(MemoryBlock metadataTablesMemoryBlock, HeapSizes heapSizes, int[] rowCounts, int[] externalRowCountsOpt)
        {
            // Size of reference tags in each table.
            this.TableRowCounts = rowCounts;

            // TODO (https://github.com/dotnet/corefx/issues/2061): 
            // Shouldn't XxxPtr table be always the same size or smaller than the corresponding Xxx table?

            // Compute ref sizes for tables that can have pointer tables
            int fieldRefSizeSorted = GetReferenceSize(rowCounts, TableIndex.FieldPtr) > SmallIndexSize ? LargeIndexSize : GetReferenceSize(rowCounts, TableIndex.Field);
            int methodRefSizeSorted = GetReferenceSize(rowCounts, TableIndex.MethodPtr) > SmallIndexSize ? LargeIndexSize : GetReferenceSize(rowCounts, TableIndex.MethodDef);
            int paramRefSizeSorted = GetReferenceSize(rowCounts, TableIndex.ParamPtr) > SmallIndexSize ? LargeIndexSize : GetReferenceSize(rowCounts, TableIndex.Param);
            int eventRefSizeSorted = GetReferenceSize(rowCounts, TableIndex.EventPtr) > SmallIndexSize ? LargeIndexSize : GetReferenceSize(rowCounts, TableIndex.Event);
            int propertyRefSizeSorted = GetReferenceSize(rowCounts, TableIndex.PropertyPtr) > SmallIndexSize ? LargeIndexSize : GetReferenceSize(rowCounts, TableIndex.Property);

            // Compute the coded token ref sizes
            int typeDefOrRefRefSize = ComputeCodedTokenSize(TypeDefOrRefTag.LargeRowSize, rowCounts, TypeDefOrRefTag.TablesReferenced);
            int hasConstantRefSize = ComputeCodedTokenSize(HasConstantTag.LargeRowSize, rowCounts, HasConstantTag.TablesReferenced);
            int hasCustomAttributeRefSize = ComputeCodedTokenSize(HasCustomAttributeTag.LargeRowSize, rowCounts, HasCustomAttributeTag.TablesReferenced);
            int hasFieldMarshalRefSize = ComputeCodedTokenSize(HasFieldMarshalTag.LargeRowSize, rowCounts, HasFieldMarshalTag.TablesReferenced);
            int hasDeclSecurityRefSize = ComputeCodedTokenSize(HasDeclSecurityTag.LargeRowSize, rowCounts, HasDeclSecurityTag.TablesReferenced);
            int memberRefParentRefSize = ComputeCodedTokenSize(MemberRefParentTag.LargeRowSize, rowCounts, MemberRefParentTag.TablesReferenced);
            int hasSemanticsRefSize = ComputeCodedTokenSize(HasSemanticsTag.LargeRowSize, rowCounts, HasSemanticsTag.TablesReferenced);
            int methodDefOrRefRefSize = ComputeCodedTokenSize(MethodDefOrRefTag.LargeRowSize, rowCounts, MethodDefOrRefTag.TablesReferenced);
            int memberForwardedRefSize = ComputeCodedTokenSize(MemberForwardedTag.LargeRowSize, rowCounts, MemberForwardedTag.TablesReferenced);
            int implementationRefSize = ComputeCodedTokenSize(ImplementationTag.LargeRowSize, rowCounts, ImplementationTag.TablesReferenced);
            int customAttributeTypeRefSize = ComputeCodedTokenSize(CustomAttributeTypeTag.LargeRowSize, rowCounts, CustomAttributeTypeTag.TablesReferenced);
            int resolutionScopeRefSize = ComputeCodedTokenSize(ResolutionScopeTag.LargeRowSize, rowCounts, ResolutionScopeTag.TablesReferenced);
            int typeOrMethodDefRefSize = ComputeCodedTokenSize(TypeOrMethodDefTag.LargeRowSize, rowCounts, TypeOrMethodDefTag.TablesReferenced);

            // Compute HeapRef Sizes
            int stringHeapRefSize = (heapSizes & HeapSizes.StringHeapLarge) == HeapSizes.StringHeapLarge ? LargeIndexSize : SmallIndexSize;
            int guidHeapRefSize = (heapSizes & HeapSizes.GuidHeapLarge) == HeapSizes.GuidHeapLarge ? LargeIndexSize : SmallIndexSize;
            int blobHeapRefSize = (heapSizes & HeapSizes.BlobHeapLarge) == HeapSizes.BlobHeapLarge ? LargeIndexSize : SmallIndexSize;

            // Populate the Table blocks
            int totalRequiredSize = 0;
            this.ModuleTable = new ModuleTableReader(rowCounts[(int)TableIndex.Module], stringHeapRefSize, guidHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ModuleTable.Block.Length;

            this.TypeRefTable = new TypeRefTableReader(rowCounts[(int)TableIndex.TypeRef], resolutionScopeRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.TypeRefTable.Block.Length;

            this.TypeDefTable = new TypeDefTableReader(rowCounts[(int)TableIndex.TypeDef], fieldRefSizeSorted, methodRefSizeSorted, typeDefOrRefRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.TypeDefTable.Block.Length;

            this.FieldPtrTable = new FieldPtrTableReader(rowCounts[(int)TableIndex.FieldPtr], GetReferenceSize(rowCounts, TableIndex.Field), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FieldPtrTable.Block.Length;

            this.FieldTable = new FieldTableReader(rowCounts[(int)TableIndex.Field], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FieldTable.Block.Length;

            this.MethodPtrTable = new MethodPtrTableReader(rowCounts[(int)TableIndex.MethodPtr], GetReferenceSize(rowCounts, TableIndex.MethodDef), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodPtrTable.Block.Length;

            this.MethodDefTable = new MethodTableReader(rowCounts[(int)TableIndex.MethodDef], paramRefSizeSorted, stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodDefTable.Block.Length;

            this.ParamPtrTable = new ParamPtrTableReader(rowCounts[(int)TableIndex.ParamPtr], GetReferenceSize(rowCounts, TableIndex.Param), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ParamPtrTable.Block.Length;

            this.ParamTable = new ParamTableReader(rowCounts[(int)TableIndex.Param], stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ParamTable.Block.Length;

            this.InterfaceImplTable = new InterfaceImplTableReader(rowCounts[(int)TableIndex.InterfaceImpl], IsDeclaredSorted(TableMask.InterfaceImpl), GetReferenceSize(rowCounts, TableIndex.TypeDef), typeDefOrRefRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.InterfaceImplTable.Block.Length;

            this.MemberRefTable = new MemberRefTableReader(rowCounts[(int)TableIndex.MemberRef], memberRefParentRefSize, stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MemberRefTable.Block.Length;

            this.ConstantTable = new ConstantTableReader(rowCounts[(int)TableIndex.Constant], IsDeclaredSorted(TableMask.Constant), hasConstantRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ConstantTable.Block.Length;

            this.CustomAttributeTable = new CustomAttributeTableReader(rowCounts[(int)TableIndex.CustomAttribute],
                                                                       IsDeclaredSorted(TableMask.CustomAttribute),
                                                                       hasCustomAttributeRefSize,
                                                                       customAttributeTypeRefSize,
                                                                       blobHeapRefSize,
                                                                       metadataTablesMemoryBlock,
                                                                       totalRequiredSize);
            totalRequiredSize += this.CustomAttributeTable.Block.Length;

            this.FieldMarshalTable = new FieldMarshalTableReader(rowCounts[(int)TableIndex.FieldMarshal], IsDeclaredSorted(TableMask.FieldMarshal), hasFieldMarshalRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FieldMarshalTable.Block.Length;

            this.DeclSecurityTable = new DeclSecurityTableReader(rowCounts[(int)TableIndex.DeclSecurity], IsDeclaredSorted(TableMask.DeclSecurity), hasDeclSecurityRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.DeclSecurityTable.Block.Length;

            this.ClassLayoutTable = new ClassLayoutTableReader(rowCounts[(int)TableIndex.ClassLayout], IsDeclaredSorted(TableMask.ClassLayout), GetReferenceSize(rowCounts, TableIndex.TypeDef), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ClassLayoutTable.Block.Length;

            this.FieldLayoutTable = new FieldLayoutTableReader(rowCounts[(int)TableIndex.FieldLayout], IsDeclaredSorted(TableMask.FieldLayout), GetReferenceSize(rowCounts, TableIndex.Field), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FieldLayoutTable.Block.Length;

            this.StandAloneSigTable = new StandAloneSigTableReader(rowCounts[(int)TableIndex.StandAloneSig], blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.StandAloneSigTable.Block.Length;

            this.EventMapTable = new EventMapTableReader(rowCounts[(int)TableIndex.EventMap], GetReferenceSize(rowCounts, TableIndex.TypeDef), eventRefSizeSorted, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.EventMapTable.Block.Length;

            this.EventPtrTable = new EventPtrTableReader(rowCounts[(int)TableIndex.EventPtr], GetReferenceSize(rowCounts, TableIndex.Event), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.EventPtrTable.Block.Length;

            this.EventTable = new EventTableReader(rowCounts[(int)TableIndex.Event], typeDefOrRefRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.EventTable.Block.Length;

            this.PropertyMapTable = new PropertyMapTableReader(rowCounts[(int)TableIndex.PropertyMap], GetReferenceSize(rowCounts, TableIndex.TypeDef), propertyRefSizeSorted, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.PropertyMapTable.Block.Length;

            this.PropertyPtrTable = new PropertyPtrTableReader(rowCounts[(int)TableIndex.PropertyPtr], GetReferenceSize(rowCounts, TableIndex.Property), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.PropertyPtrTable.Block.Length;

            this.PropertyTable = new PropertyTableReader(rowCounts[(int)TableIndex.Property], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.PropertyTable.Block.Length;

            this.MethodSemanticsTable = new MethodSemanticsTableReader(rowCounts[(int)TableIndex.MethodSemantics], IsDeclaredSorted(TableMask.MethodSemantics), GetReferenceSize(rowCounts, TableIndex.MethodDef), hasSemanticsRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodSemanticsTable.Block.Length;

            this.MethodImplTable = new MethodImplTableReader(rowCounts[(int)TableIndex.MethodImpl], IsDeclaredSorted(TableMask.MethodImpl), GetReferenceSize(rowCounts, TableIndex.TypeDef), methodDefOrRefRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodImplTable.Block.Length;

            this.ModuleRefTable = new ModuleRefTableReader(rowCounts[(int)TableIndex.ModuleRef], stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ModuleRefTable.Block.Length;

            this.TypeSpecTable = new TypeSpecTableReader(rowCounts[(int)TableIndex.TypeSpec], blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.TypeSpecTable.Block.Length;

            this.ImplMapTable = new ImplMapTableReader(rowCounts[(int)TableIndex.ImplMap], IsDeclaredSorted(TableMask.ImplMap), GetReferenceSize(rowCounts, TableIndex.ModuleRef), memberForwardedRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ImplMapTable.Block.Length;

            this.FieldRvaTable = new FieldRVATableReader(rowCounts[(int)TableIndex.FieldRva], IsDeclaredSorted(TableMask.FieldRva), GetReferenceSize(rowCounts, TableIndex.Field), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FieldRvaTable.Block.Length;

            this.EncLogTable = new EnCLogTableReader(rowCounts[(int)TableIndex.EncLog], metadataTablesMemoryBlock, totalRequiredSize, _metadataStreamKind);
            totalRequiredSize += this.EncLogTable.Block.Length;

            this.EncMapTable = new EnCMapTableReader(rowCounts[(int)TableIndex.EncMap], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.EncMapTable.Block.Length;

            this.AssemblyTable = new AssemblyTableReader(rowCounts[(int)TableIndex.Assembly], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.AssemblyTable.Block.Length;

            this.AssemblyProcessorTable = new AssemblyProcessorTableReader(rowCounts[(int)TableIndex.AssemblyProcessor], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.AssemblyProcessorTable.Block.Length;

            this.AssemblyOSTable = new AssemblyOSTableReader(rowCounts[(int)TableIndex.AssemblyOS], metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.AssemblyOSTable.Block.Length;

            this.AssemblyRefTable = new AssemblyRefTableReader(rowCounts[(int)TableIndex.AssemblyRef], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize, _metadataKind);
            totalRequiredSize += this.AssemblyRefTable.Block.Length;

            this.AssemblyRefProcessorTable = new AssemblyRefProcessorTableReader(rowCounts[(int)TableIndex.AssemblyRefProcessor], GetReferenceSize(rowCounts, TableIndex.AssemblyRef), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.AssemblyRefProcessorTable.Block.Length;

            this.AssemblyRefOSTable = new AssemblyRefOSTableReader(rowCounts[(int)TableIndex.AssemblyRefOS], GetReferenceSize(rowCounts, TableIndex.AssemblyRef), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.AssemblyRefOSTable.Block.Length;

            this.FileTable = new FileTableReader(rowCounts[(int)TableIndex.File], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.FileTable.Block.Length;

            this.ExportedTypeTable = new ExportedTypeTableReader(rowCounts[(int)TableIndex.ExportedType], implementationRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ExportedTypeTable.Block.Length;

            this.ManifestResourceTable = new ManifestResourceTableReader(rowCounts[(int)TableIndex.ManifestResource], implementationRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ManifestResourceTable.Block.Length;

            this.NestedClassTable = new NestedClassTableReader(rowCounts[(int)TableIndex.NestedClass], IsDeclaredSorted(TableMask.NestedClass), GetReferenceSize(rowCounts, TableIndex.TypeDef), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.NestedClassTable.Block.Length;

            this.GenericParamTable = new GenericParamTableReader(rowCounts[(int)TableIndex.GenericParam], IsDeclaredSorted(TableMask.GenericParam), typeOrMethodDefRefSize, stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.GenericParamTable.Block.Length;

            this.MethodSpecTable = new MethodSpecTableReader(rowCounts[(int)TableIndex.MethodSpec], methodDefOrRefRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodSpecTable.Block.Length;

            this.GenericParamConstraintTable = new GenericParamConstraintTableReader(rowCounts[(int)TableIndex.GenericParamConstraint], IsDeclaredSorted(TableMask.GenericParamConstraint), GetReferenceSize(rowCounts, TableIndex.GenericParam), typeDefOrRefRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.GenericParamConstraintTable.Block.Length;

            // debug tables:
            // Type-system metadata tables may be stored in a separate (external) metadata file.
            // We need to use the row counts of the external tables when referencing them.
            // Debug tables are local to the current metadata image and type system metadata tables are external and precede all debug tables.
            var combinedRowCounts = (externalRowCountsOpt != null) ? CombineRowCounts(rowCounts, externalRowCountsOpt, firstLocalTableIndex: TableIndex.Document) : rowCounts;

            int methodRefSizeCombined = GetReferenceSize(combinedRowCounts, TableIndex.MethodDef);
            int hasCustomDebugInformationRefSizeCombined = ComputeCodedTokenSize(HasCustomDebugInformationTag.LargeRowSize, combinedRowCounts, HasCustomDebugInformationTag.TablesReferenced);

            this.DocumentTable = new DocumentTableReader(rowCounts[(int)TableIndex.Document], guidHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.DocumentTable.Block.Length;

            this.MethodDebugInformationTable = new MethodDebugInformationTableReader(rowCounts[(int)TableIndex.MethodDebugInformation], GetReferenceSize(rowCounts, TableIndex.Document), blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.MethodDebugInformationTable.Block.Length;

            this.LocalScopeTable = new LocalScopeTableReader(rowCounts[(int)TableIndex.LocalScope], IsDeclaredSorted(TableMask.LocalScope), methodRefSizeCombined, GetReferenceSize(rowCounts, TableIndex.ImportScope), GetReferenceSize(rowCounts, TableIndex.LocalVariable), GetReferenceSize(rowCounts, TableIndex.LocalConstant), metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.LocalScopeTable.Block.Length;

            this.LocalVariableTable = new LocalVariableTableReader(rowCounts[(int)TableIndex.LocalVariable], stringHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.LocalVariableTable.Block.Length;

            this.LocalConstantTable = new LocalConstantTableReader(rowCounts[(int)TableIndex.LocalConstant], stringHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.LocalConstantTable.Block.Length;

            this.ImportScopeTable = new ImportScopeTableReader(rowCounts[(int)TableIndex.ImportScope], GetReferenceSize(rowCounts, TableIndex.ImportScope), blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.ImportScopeTable.Block.Length;

            this.StateMachineMethodTable = new StateMachineMethodTableReader(rowCounts[(int)TableIndex.StateMachineMethod], IsDeclaredSorted(TableMask.StateMachineMethod), methodRefSizeCombined, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.StateMachineMethodTable.Block.Length;

            this.CustomDebugInformationTable = new CustomDebugInformationTableReader(rowCounts[(int)TableIndex.CustomDebugInformation], IsDeclaredSorted(TableMask.CustomDebugInformation), hasCustomDebugInformationRefSizeCombined, guidHeapRefSize, blobHeapRefSize, metadataTablesMemoryBlock, totalRequiredSize);
            totalRequiredSize += this.CustomDebugInformationTable.Block.Length;

            if (totalRequiredSize > metadataTablesMemoryBlock.Length)
            {
                throw new BadImageFormatException(SR.MetadataTablesTooSmall);
            }
        }