internal void Write()
{
var localDiagnostics = new DiagnosticBag();
ArArchiveFile.UpdateLayout(localDiagnostics);
if (localDiagnostics.HasErrors)
{
throw new ObjectFileException("Invalid ar file", localDiagnostics);
}
// Copy for warnings
localDiagnostics.CopyTo(Diagnostics);
_startStreamOffset = Stream.Position;
Stream.Write(ArArchiveFile.Magic);
Span <byte> entryBuffer = stackalloc byte[ArFile.FileEntrySizeInBytes];
var headers = ArArchiveFile.LongNamesTable;
// Serialize all file entries
for (var i = 0; i < ArArchiveFile.Files.Count; i++)
{
var file = ArArchiveFile.Files[i];
// Serialize the headers at the correct position only if they are required
if (headers != null && headers.Index == i && headers.Size > 0)
{
WriteFileEntry(entryBuffer, headers);
if (Diagnostics.HasErrors)
{
break;
}
}
WriteFileEntry(entryBuffer, file);
if (Diagnostics.HasErrors)
{
break;
}
}
if (Diagnostics.HasErrors)
{
throw new ObjectFileException("Unexpected error while writing ar file", Diagnostics);
}
}
/// <inheritdoc />
public override bool TryUpdateLayout(DiagnosticBag diagnostics)
{
if (diagnostics == null)
{
throw new ArgumentNullException(nameof(diagnostics));
}
// Check first that we have a valid object file
var localDiagnostics = new DiagnosticBag();
Verify(localDiagnostics);
// If we have any any errors
if (localDiagnostics.HasErrors)
{
localDiagnostics.CopyTo(diagnostics);
return(false);
}
if (Kind == ArArchiveKind.GNU)
{
if (LongNamesTable == null)
{
LongNamesTable = new ArLongNamesTable
{
Parent = this
};
}
if (SymbolTable != null && SymbolTable.Index == 0)
{
LongNamesTable.Index = 1;
}
else
{
LongNamesTable.Index = 1;
}
// Reset the calculation of the size of headers
LongNamesTable.SizeKind = ValueKind.Auto;
}
else
{
// Don't use headers
LongNamesTable = null;
}
ulong size = (ulong)Magic.Length;
// Clear the internal names
foreach (var entry in Files)
{
entry.InternalName = null;
}
for (var i = 0; i < Files.Count; i++)
{
var entry = Files[i];
// If we have a GNU headers and they are required, add them to the offset and size
if (LongNamesTable != null && LongNamesTable.Index == i)
{
var headerSize = LongNamesTable.Size;
if (headerSize > 0)
{
LongNamesTable.Offset = size;
size += ArFile.FileEntrySizeInBytes + LongNamesTable.Size;
if ((size & 1) != 0)
{
size++;
}
}
}
entry.Offset = size;
size += ArFile.FileEntrySizeInBytes + entry.Size;
if ((size & 1) != 0)
{
size++;
}
}
return(true);
}
