internal virtual void Add(IndexPack.UnresolvedDelta d)
{
d.next = head;
head = d;
}
// Read one entire object or delta from the input.
/// <exception cref="System.IO.IOException"></exception>
private void IndexOneObject()
{
long pos = Position();
crc.Reset();
int c = ReadFrom(IndexPack.Source.INPUT);
int typeCode = (c >> 4) & 7;
long sz = c & 15;
int shift = 4;
while ((c & unchecked((int)(0x80))) != 0)
{
c = ReadFrom(IndexPack.Source.INPUT);
sz += (c & unchecked((int)(0x7f))) << shift;
shift += 7;
}
switch (typeCode)
{
case Constants.OBJ_COMMIT:
case Constants.OBJ_TREE:
case Constants.OBJ_BLOB:
case Constants.OBJ_TAG:
{
Whole(typeCode, pos, sz);
break;
}
case Constants.OBJ_OFS_DELTA:
{
c = ReadFrom(IndexPack.Source.INPUT);
long ofs = c & 127;
while ((c & 128) != 0)
{
ofs += 1;
c = ReadFrom(IndexPack.Source.INPUT);
ofs <<= 7;
ofs += (c & 127);
}
long @base = pos - ofs;
IndexPack.UnresolvedDelta n;
InflateAndSkip(IndexPack.Source.INPUT, sz);
n = new IndexPack.UnresolvedDelta(pos, (int)crc.GetValue());
n.next = baseByPos.Put(@base, n);
deltaCount++;
break;
}
case Constants.OBJ_REF_DELTA:
{
c = Fill(IndexPack.Source.INPUT, 20);
crc.Update(buf, c, 20);
ObjectId @base = ObjectId.FromRaw(buf, c);
Use(20);
IndexPack.DeltaChain r = baseById.Get(@base);
if (r == null)
{
r = new IndexPack.DeltaChain(@base);
baseById.Add(r);
}
InflateAndSkip(IndexPack.Source.INPUT, sz);
r.Add(new IndexPack.UnresolvedDelta(pos, (int)crc.GetValue()));
deltaCount++;
break;
}
default:
{
throw new IOException(MessageFormat.Format(JGitText.Get().unknownObjectType, typeCode
));
}
}
}
internal virtual IndexPack.UnresolvedDelta Remove()
{
IndexPack.UnresolvedDelta r = head;
if (r != null)
{
head = null;
}
return r;
}