public TableInitInfo(Table table, byte column1, BlobDataKind kind1, sbyte column2, BlobDataKind kind2)
{
Table = table;
Column1 = column1;
Kind1 = kind1;
Column2 = column2;
Kind2 = kind2;
}
public TableInitInfo(Table table, byte column1, BlobDataKind kind1)
{
Table = table;
Column1 = column1;
Kind1 = kind1;
Column2 = -1;
Kind2 = BlobDataKind.None;
}
public BlobDataInfoPosition(HexPosition position, BlobDataKind kind)
{
Position = position;
Tokens = new List <uint>();
Kind = kind;
}
public BlobDataInfo(HexSpan span, uint[] tokens, BlobDataKind kind)
{
Span = span;
Tokens = new ReadOnlyCollection <uint>(tokens);
Kind = kind;
}
void Add(Dictionary <uint, BlobDataInfoPosition> dict, MDTable mdTable, int column1, BlobDataKind kind1, int column2, BlobDataKind kind2)
{
var heapStart = Span.Span.Start;
var heapEnd = Span.Span.End;
var buffer = Span.Buffer;
var recPos = mdTable.Span.Start;
var rows = mdTable.Rows;
var colInfo1 = mdTable.Columns[column1];
var colInfo2 = mdTable.Columns[column2];
Debug.Assert(colInfo1.ColumnSize == ColumnSize.Blob);
Debug.Assert(colInfo2.ColumnSize == ColumnSize.Blob);
uint recSize = mdTable.RowSize;
bool bigBlob = colInfo1.Size == 4;
uint tokenBase = new MDToken(mdTable.Table, 0).Raw;
for (uint rid = 1; rid <= rows; rid++, recPos += recSize)
{
uint offs1 = bigBlob ? buffer.ReadUInt32(recPos + colInfo1.Offset) : buffer.ReadUInt16(recPos + colInfo1.Offset);
uint offs2 = bigBlob ? buffer.ReadUInt32(recPos + colInfo2.Offset) : buffer.ReadUInt16(recPos + colInfo2.Offset);
{
List <uint>?tokens;
if (offs1 == 0)
{
tokens = null;
}
else if (dict.TryGetValue(offs1, out var info))
{
tokens = info.Tokens;
}
else
{
var pos = heapStart + offs1;
if (pos < heapEnd)
{
dict[offs1] = info = new BlobDataInfoPosition(pos, kind1);
tokens = info.Tokens;
}
else
{
tokens = null;
}
}
tokens?.Add(tokenBase + rid);
}
{
List <uint>?tokens;
if (offs2 == 0)
{
tokens = null;
}
else if (dict.TryGetValue(offs2, out var info))
{
tokens = info.Tokens;
}
else
{
var pos = heapStart + offs2;
if (pos < heapEnd)
{
dict[offs2] = info = new BlobDataInfoPosition(pos, kind2);
tokens = info.Tokens;
}
else
{
tokens = null;
}
}
tokens?.Add(tokenBase + rid);
}
}
}
