/// <summary>
/// Reduce an <see cref="OrCriteria" /> that might contain a <see cref="ConstantCriteria" />.
/// </summary>
/// <param name="orCriteria"><see cref="OrCriteria" /> to be reduced.</param>
/// <returns>Reduced criteria.</returns>
/// <remarks>
/// Falses will be removed, trues will replace the entire Or with a true.
/// </remarks>
static ICriteria Reduce(OrCriteria orCriteria)
{
if (orCriteria.Criteria.Any(c => c == ConstantCriteria.True))
{
return(ConstantCriteria.True);
}
return(OrCriteria
.Combine(orCriteria
.Criteria
.Select(Reduce)
.Where(c => c != ConstantCriteria.False && c != null)
.ToArray()));
}
