/// <summary>
/// Creates empty heap objects if they're not present in the metadata
/// </summary>
protected void InitializeNonExistentHeaps()
{
if (stringsStream == null)
{
stringsStream = new StringsStream();
}
if (usStream == null)
{
usStream = new USStream();
}
if (blobStream == null)
{
blobStream = new BlobStream();
}
if (guidStream == null)
{
guidStream = new GuidStream();
}
}
/// <summary>
/// Dispose method
/// </summary>
/// <param name="disposing"><c>true</c> if called by <see cref="Dispose()"/></param>
protected virtual void Dispose(bool disposing)
{
if (!disposing)
{
return;
}
peImage?.Dispose();
stringsStream?.Dispose();
usStream?.Dispose();
blobStream?.Dispose();
guidStream?.Dispose();
tablesStream?.Dispose();
var as2 = allStreams;
if (as2 != null)
{
foreach (var stream in as2)
{
stream?.Dispose();
}
}
mdReaderFactoryToDisposeLater?.Dispose();
peImage = null;
cor20Header = null;
mdHeader = null;
stringsStream = null;
usStream = null;
blobStream = null;
guidStream = null;
tablesStream = null;
allStreams = null;
fieldRidToTypeDefRid = null;
methodRidToTypeDefRid = null;
typeDefRidToNestedClasses = null;
mdReaderFactoryToDisposeLater = null;
}
/// <inheritdoc/>
protected override void InitializeInternal(DataReaderFactory mdReaderFactory, uint metadataBaseOffset)
{
DotNetStream dns = null;
try {
foreach (var sh in mdHeader.StreamHeaders)
{
switch (sh.Name.ToUpperInvariant())
{
case "#STRINGS":
if (stringsStream == null)
{
stringsStream = new StringsStream(mdReaderFactory, metadataBaseOffset, sh);
allStreams.Add(stringsStream);
continue;
}
break;
case "#US":
if (usStream == null)
{
usStream = new USStream(mdReaderFactory, metadataBaseOffset, sh);
allStreams.Add(usStream);
continue;
}
break;
case "#BLOB":
if (blobStream == null)
{
blobStream = new BlobStream(mdReaderFactory, metadataBaseOffset, sh);
allStreams.Add(blobStream);
continue;
}
break;
case "#GUID":
if (guidStream == null)
{
guidStream = new GuidStream(mdReaderFactory, metadataBaseOffset, sh);
allStreams.Add(guidStream);
continue;
}
break;
case "#~": // Only if #Schema is used
case "#-":
if (tablesStream == null)
{
tablesStream = new TablesStream(mdReaderFactory, metadataBaseOffset, sh);
allStreams.Add(tablesStream);
continue;
}
break;
case "#PDB":
// Case sensitive comparison since it's a stream that's not read by the CLR,
// only by other libraries eg. System.Reflection.Metadata.
if (isStandalonePortablePdb && pdbStream == null && sh.Name == "#Pdb")
{
pdbStream = new PdbStream(mdReaderFactory, metadataBaseOffset, sh);
allStreams.Add(pdbStream);
continue;
}
break;
}
dns = new CustomDotNetStream(mdReaderFactory, metadataBaseOffset, sh);
allStreams.Add(dns);
dns = null;
}
}
finally {
dns?.Dispose();
}
if (tablesStream == null)
{
throw new BadImageFormatException("Missing MD stream");
}
if (pdbStream != null)
{
tablesStream.Initialize(pdbStream.TypeSystemTableRows);
}
else
{
tablesStream.Initialize(null);
}
// The pointer tables are used iff row count != 0
hasFieldPtr = !tablesStream.FieldPtrTable.IsEmpty;
hasMethodPtr = !tablesStream.MethodPtrTable.IsEmpty;
hasParamPtr = !tablesStream.ParamPtrTable.IsEmpty;
hasEventPtr = !tablesStream.EventPtrTable.IsEmpty;
hasPropertyPtr = !tablesStream.PropertyPtrTable.IsEmpty;
hasDeletedRows = tablesStream.HasDelete;
}
/// <inheritdoc/>
protected override void InitializeInternal(DataReaderFactory mdReaderFactory, uint metadataBaseOffset)
{
DotNetStream dns = null;
var newAllStreams = new List <DotNetStream>(allStreams);
try {
for (int i = mdHeader.StreamHeaders.Count - 1; i >= 0; i--)
{
var sh = mdHeader.StreamHeaders[i];
switch (sh.Name)
{
case "#Strings":
if (stringsStream == null)
{
stringsStream = new StringsStream(mdReaderFactory, metadataBaseOffset, sh);
newAllStreams.Add(stringsStream);
continue;
}
break;
case "#US":
if (usStream == null)
{
usStream = new USStream(mdReaderFactory, metadataBaseOffset, sh);
newAllStreams.Add(usStream);
continue;
}
break;
case "#Blob":
if (blobStream == null)
{
blobStream = new BlobStream(mdReaderFactory, metadataBaseOffset, sh);
newAllStreams.Add(blobStream);
continue;
}
break;
case "#GUID":
if (guidStream == null)
{
guidStream = new GuidStream(mdReaderFactory, metadataBaseOffset, sh);
newAllStreams.Add(guidStream);
continue;
}
break;
case "#~":
if (tablesStream == null)
{
tablesStream = new TablesStream(mdReaderFactory, metadataBaseOffset, sh);
newAllStreams.Add(tablesStream);
continue;
}
break;
case "#Pdb":
if (isStandalonePortablePdb && pdbStream == null)
{
pdbStream = new PdbStream(mdReaderFactory, metadataBaseOffset, sh);
allStreams.Add(pdbStream);
continue;
}
break;
}
dns = new CustomDotNetStream(mdReaderFactory, metadataBaseOffset, sh);
newAllStreams.Add(dns);
dns = null;
}
}
finally {
dns?.Dispose();
newAllStreams.Reverse();
allStreams = newAllStreams;
}
if (tablesStream == null)
{
throw new BadImageFormatException("Missing MD stream");
}
if (pdbStream != null)
{
tablesStream.Initialize(pdbStream.TypeSystemTableRows);
}
else
{
tablesStream.Initialize(null);
}
}