/// <summary>
/// Does in-place AND NOT of the bits provided by the
/// iterator.
/// </summary>
public void AndNot(DocIdSetIterator iter)
{
if (iter is OpenBitSetIterator && iter.DocID == -1)
{
OpenBitSetIterator obs = (OpenBitSetIterator)iter;
AndNot(obs.arr, obs.words);
// advance after last doc that would be accepted if standard
// iteration is used (to exhaust it):
obs.Advance(numBits);
}
else if (iter is FixedBitSetIterator && iter.DocID == -1)
{
FixedBitSetIterator fbs = (FixedBitSetIterator)iter;
AndNot(fbs.bits, fbs.numWords);
// advance after last doc that would be accepted if standard
// iteration is used (to exhaust it):
fbs.Advance(numBits);
}
else
{
int doc;
while ((doc = iter.NextDoc()) < numBits)
{
Clear(doc);
}
}
}
/// <summary>
/// Does in-place OR of the bits provided by the
/// iterator.
/// </summary>
public void Or(DocIdSetIterator iter)
{
if (iter is OpenBitSetIterator && iter.DocID() == -1)
{
OpenBitSetIterator obs = (OpenBitSetIterator)iter;
Or(obs.Arr, obs.Words);
// advance after last doc that would be accepted if standard
// iteration is used (to exhaust it):
obs.Advance(NumBits);
}
else if (iter is FixedBitSetIterator && iter.DocID() == -1)
{
FixedBitSetIterator fbs = (FixedBitSetIterator)iter;
Or(fbs.bits, fbs.NumWords);
// advance after last doc that would be accepted if standard
// iteration is used (to exhaust it):
fbs.Advance(NumBits);
}
else
{
int doc;
while ((doc = iter.NextDoc()) < NumBits)
{
Set(doc);
}
}
}
internal virtual void DoIterate2(System.Collections.BitArray a, OpenBitSet b)
{
int aa = -1, bb = -1;
OpenBitSetIterator iterator = new OpenBitSetIterator(b);
do
{
aa = BitSetSupport.NextSetBit(a, aa + 1);
bb = rand.NextDouble() > 0.5 ? iterator.NextDoc(null) : iterator.Advance(bb + 1, null);
Assert.AreEqual(aa == -1?DocIdSetIterator.NO_MORE_DOCS:aa, bb);
}while (aa >= 0);
}
internal virtual void DoIterate2(BitArray a, OpenBitSet b)
{
int aa = -1, bb = -1;
OpenBitSetIterator iterator = new OpenBitSetIterator(b);
do
{
aa = a.NextSetBit(aa + 1);
bb = Random().NextBoolean() ? iterator.NextDoc() : iterator.Advance(bb + 1);
Assert.AreEqual(aa == -1 ? DocIdSetIterator.NO_MORE_DOCS : aa, bb);
} while (aa >= 0);
}
internal virtual void DoIterate1(System.Collections.BitArray a, OpenBitSet b)
{
int aa = - 1, bb = - 1;
OpenBitSetIterator iterator = new OpenBitSetIterator(b);
do
{
aa = SupportClass.BitSetSupport.NextSetBit(a, aa + 1);
bb = rand.NextDouble() > 0.5 ? iterator.NextDoc() : iterator.Advance(bb + 1);
Assert.AreEqual(aa == - 1?DocIdSetIterator.NO_MORE_DOCS:aa, bb);
}
while (aa >= 0);
}
/// <summary>
/// Does in-place AND of the bits provided by the
/// iterator.
/// </summary>
public void And(DocIdSetIterator iter)
{
if (iter is OpenBitSetIterator && iter.DocID == -1)
{
OpenBitSetIterator obs = (OpenBitSetIterator)iter;
And(obs.arr, obs.words);
// advance after last doc that would be accepted if standard
// iteration is used (to exhaust it):
obs.Advance(numBits);
}
else if (iter is FixedBitSetIterator && iter.DocID == -1)
{
FixedBitSetIterator fbs = (FixedBitSetIterator)iter;
And(fbs.bits, fbs.numWords);
// advance after last doc that would be accepted if standard
// iteration is used (to exhaust it):
fbs.Advance(numBits);
}
else
{
if (numBits == 0)
{
return;
}
int disiDoc, bitSetDoc = NextSetBit(0);
while (bitSetDoc != -1 && (disiDoc = iter.Advance(bitSetDoc)) < numBits)
{
Clear(bitSetDoc, disiDoc);
disiDoc++;
bitSetDoc = (disiDoc < numBits) ? NextSetBit(disiDoc) : -1;
}
if (bitSetDoc != -1)
{
Clear(bitSetDoc, numBits);
}
}
}
