public static void WhereNull(XArray left, bool isValue, BitVector vector)
{
bool[] leftArray = (bool[])left.NullRows;
if (leftArray == null)
{
if (isValue == false)
{
vector.All(left.Count);
}
return;
}
// Check how the arrays are configured and run the fastest loop possible for the configuration.
if (left.Selector.Indices != null)
{
// Slow Path: Look up indices on both sides. ~55ms for 16M
for (int i = 0; i < left.Count; ++i)
{
if (leftArray[left.Index(i)] == isValue)
{
vector.Set(i);
}
}
}
else if (!left.Selector.IsSingleValue)
{
// Fastest Path: Contiguous Array to constant. ~15ms for 16M
int zeroOffset = left.Selector.StartIndexInclusive;
if (s_WhereSingleNative != null)
{
s_WhereSingleNative(leftArray, left.Selector.StartIndexInclusive, left.Selector.Count, (byte)CompareOperator.Equal, isValue, (byte)BooleanOperator.Or, vector.Array, 0);
}
else
{
for (int i = left.Selector.StartIndexInclusive; i < left.Selector.EndIndexExclusive; ++i)
{
if (leftArray[i] == isValue)
{
vector.Set(i - zeroOffset);
}
}
}
}
else
{
// Single Static comparison. ~0.7ms for 16M [called every 10,240 rows]
if (leftArray[left.Selector.StartIndexInclusive] == isValue)
{
vector.All(left.Count);
}
else
{
vector.None();
}
}
}
public void BitVector_Basics()
{
BitVector set = new BitVector(999);
// Verify Count, All, None
Assert.AreEqual(0, set.Count, "Set should start empty");
set.All(999);
Assert.AreEqual(999, set.Count, "All should set through length only.");
set.ClearAbove(900);
Assert.AreEqual(900, set.Count, "ClearAbove should clear past length only.");
set.None();
Assert.AreEqual(0, set.Count, "None should clear");
// Verify individual set and get
byte[] values = new byte[999];
for (int i = 0; i < 999; ++i)
{
// Set only 'i' via setter and verify
set.None();
set[i] = true;
AssertOnly(set, 999, i);
}
}
public void Evaluate(BitVector vector)
{
Allocator.AllocateToSize(ref _termVector, vector.Capacity);
vector.All(vector.Capacity);
foreach (IExpression term in _terms)
{
_termVector.None();
term.Evaluate(_termVector);
vector.And(_termVector);
}
}
public void Evaluate(XArray left, XArray unused, BitVector vector)
{
byte[] leftArray = (byte[])left.Array;
// Check how the arrays are configured and run the fastest loop possible for the configuration.
if (left.HasNulls)
{
// Slowest Path: Null checks and look up indices on both sides
for (int i = 0; i < left.Count; ++i)
{
int leftIndex = left.Index(i);
if (left.NullRows[leftIndex])
{
continue;
}
if (_array[leftArray[leftIndex]])
{
vector.Set(i);
}
}
}
else if (left.Selector.Indices != null)
{
// Slow Path: Look up indices on both sides.
for (int i = 0; i < left.Count; ++i)
{
if (_array[leftArray[left.Index(i)]])
{
vector.Set(i);
}
}
}
else if (!left.Selector.IsSingleValue)
{
// Fastest Path: Contiguous Array to constant.
int zeroOffset = left.Selector.StartIndexInclusive;
for (int i = left.Selector.StartIndexInclusive; i < left.Selector.EndIndexExclusive; ++i)
{
if (_array[leftArray[i]])
{
vector.Set(i - zeroOffset);
}
}
}
else
{
// Single Static comparison.
if (_array[leftArray[left.Selector.StartIndexInclusive]])
{
vector.All(left.Count);
}
}
}
public void WhereGreaterThanOrEqual(XArray left, XArray right, BitVector vector)
{
short[] leftArray = (short[])left.Array;
short[] rightArray = (short[])right.Array;
// Check how the XArrays are configured and run the fastest loop possible for the configuration.
if (left.Selector.Indices != null || right.Selector.Indices != null)
{
// Slow Path: Look up indices on both sides. ~55ms for 16M
for (int i = 0; i < left.Count; ++i)
{
if (leftArray[left.Index(i)] >= rightArray[right.Index(i)])
{
vector.Set(i);
}
}
}
else if (!right.Selector.IsSingleValue)
{
// Faster Path: Compare contiguous arrays. ~20ms for 16M
if (s_WhereNative != null)
{
s_WhereNative(leftArray, left.Selector.StartIndexInclusive, (byte)CompareOperator.GreaterThanOrEqual, rightArray, right.Selector.StartIndexInclusive, left.Selector.Count, (byte)BooleanOperator.Or, vector.Array, 0);
}
else
{
int zeroOffset = left.Selector.StartIndexInclusive;
int leftIndexToRightIndex = right.Selector.StartIndexInclusive - left.Selector.StartIndexInclusive;
for (int i = left.Selector.StartIndexInclusive; i < left.Selector.EndIndexExclusive; ++i)
{
if (leftArray[i] >= rightArray[i + leftIndexToRightIndex])
{
vector.Set(i - zeroOffset);
}
}
}
}
else if (!left.Selector.IsSingleValue)
{
// Fastest Path: Contiguous Array to constant. ~15ms for 16M
int zeroOffset = left.Selector.StartIndexInclusive;
short rightValue = rightArray[0];
if (s_WhereSingleNative != null)
{
s_WhereSingleNative(leftArray, left.Selector.StartIndexInclusive, left.Selector.Count, (byte)CompareOperator.GreaterThanOrEqual, rightValue, (byte)BooleanOperator.Or, vector.Array, 0);
}
else
{
for (int i = left.Selector.StartIndexInclusive; i < left.Selector.EndIndexExclusive; ++i)
{
if (leftArray[i] >= rightValue)
{
vector.Set(i - zeroOffset);
}
}
}
}
else
{
// Single Static comparison. ~0.7ms for 16M [called every 10,240 rows]
if (leftArray[left.Selector.StartIndexInclusive] >= rightArray[right.Selector.StartIndexInclusive])
{
vector.All(left.Count);
}
}
// Remove nulls from matches
BoolComparer.AndNotNull(left, vector);
BoolComparer.AndNotNull(right, vector);
}
public static void All(XArray left, XArray unused, BitVector vector)
{
vector.All(left.Count);
}