private GuidStream GetGuidStream(FileChecksumSubsection checksum, PdbStringTable namesStream, PdbFile pdb)
{
string name = namesStream.Dictionary[checksum.NameIndex];
int guidStreamIndex;
if (pdb.InfoStream.NamedStreamMap.Streams.TryGetValue("/src/files/" + name, out guidStreamIndex) ||
pdb.InfoStream.NamedStreamMap.StreamsUppercase.TryGetValue("/SRC/FILES/" + name.ToUpperInvariant(), out guidStreamIndex))
{
return(new GuidStream(pdb.Streams[guidStreamIndex]));
}
return(null);
}
/// <summary>
/// Reads debug subsections from references for the specified index.
/// </summary>
/// <param name="index">Index of the debug subsection.</param>
private DebugSubsection GetDebugSubsection(int index)
{
// Since DictionaryCache is allowing only single thread to call this function, we don't need to lock reader here.
DebugSubsectionReference reference = references[index];
Reader.Position = reference.DataOffset;
switch (reference.Kind)
{
case DebugSubsectionKind.Lines:
return(LinesSubsection.Read(Reader, reference.Kind, reference.DataLen));
case DebugSubsectionKind.FileChecksums:
return(FileChecksumSubsection.Read(Reader, reference.Kind));
default:
#if DEBUG
throw new NotImplementedException($"Unknown reference kind: {reference.Kind}");
#else
return(null);
#endif
}
}
/// <summary>
/// Initializes a new instance of the <see cref="PdbSource"/> class.
/// </summary>
/// <param name="pdbFile">Portable PDB file reader.</param>
/// <param name="checksum">File checksum subsection.</param>
internal PdbSource(PdbFile pdbFile, FileChecksumSubsection checksum)
{
PdbFile = pdbFile;
Checksum = checksum;
hashCache = SimpleCache.CreateStruct(() => GuidStream?.ChecksumReader.ReadAllBytes() ?? Checksum.HashReader.ReadAllBytes());
nameCache = SimpleCache.CreateStruct(() => PdbFile.NamesStream.Dictionary[checksum.NameIndex]);
guidStreamCache = SimpleCache.CreateStruct(() =>
{
int guidStreamIndex;
if (PdbFile.Reader.InfoStream.NamedStreamMap.Streams.TryGetValue("/src/files/" + Name, out guidStreamIndex) ||
PdbFile.Reader.InfoStream.NamedStreamMap.StreamsUppercase.TryGetValue("/SRC/FILES/" + Name.ToUpperInvariant(), out guidStreamIndex))
{
PdbStream guidStream = PdbFile.Reader.GetStream(guidStreamIndex);
if (guidStream != null)
{
return(new GuidStream(guidStream));
}
}
return(null);
});
}
internal PdbSource this[FileChecksumSubsection checksum] => sourcesCache[checksum];
