/// <summary>
/// Returns a filter that is the logical AND of the two specified filters.
/// </summary>
/// <param name="pA"></param>
/// <param name="pB"></param>
/// <returns></returns>
public static cFilter operator &(cFilter pA, cFilter pB)
{
if (pA == null)
{
throw new ArgumentNullException(nameof(pA));
}
if (pB == null)
{
throw new ArgumentNullException(nameof(pB));
}
if (pA is cFilterFlagsContain lFCA && pB is cFilterFlagsContain lFCB)
{
cFetchableFlagList lFlags = new cFetchableFlagList();
lFlags.Add(lFCA.Flags);
lFlags.Add(lFCB.Flags);
return(new cFilterFlagsContain(lFlags));
}
List <cFilter> lItems = new List <cFilter>();
if (pA is cFilterAnd lAA)
{
lItems.AddRange(lAA.Terms);
}
else
{
lItems.Add(pA);
}
if (pB is cFilterAnd lAB)
{
lItems.AddRange(lAB.Terms);
}
else
{
lItems.Add(pB);
}
return(new cFilterAnd(lItems));
}
