private static Value GreaterThan(Comparison comparison)
{
switch (comparison.innerEnumValue)
{
case Comparison.InnerEnum.GREATER_THAN:
return(TRUE);
case Comparison.InnerEnum.GREATER_THAN_AND_EQUAL:
case Comparison.InnerEnum.EQUAL:
case Comparison.InnerEnum.SMALLER_THAN_AND_EQUAL:
case Comparison.InnerEnum.SMALLER_THAN:
return(FALSE);
case Comparison.InnerEnum.UNDEFINED:
return(NO_VALUE);
default:
throw new InternalException(comparison + " is not a known comparison", null);
}
}
private Comparison Cmp(AnyValue v1, AnyValue v2, bool ternary)
{
Debug.Assert(v1 != null && v2 != null, "null values are not supported, use NoValue.NO_VALUE instead");
// NO_VALUE is bigger than all other values, need to check for that up
// front
if (v1 == v2)
{
return(Comparison.Equal);
}
if (v1 == Values.NO_VALUE)
{
return(Comparison.GreaterThan);
}
if (v2 == Values.NO_VALUE)
{
return(Comparison.SmallerThan);
}
// We must handle sequences as a special case, as they can be both storable and virtual
bool isSequence1 = v1.SequenceValue;
bool isSequence2 = v2.SequenceValue;
if (isSequence1 && isSequence2)
{
return(Comparison.from(CompareSequences(( SequenceValue )v1, ( SequenceValue )v2)));
}
else if (isSequence1)
{
return(Comparison.from(CompareSequenceAndNonSequence(( SequenceValue )v1, v2)));
}
else if (isSequence2)
{
return(Comparison.from(-CompareSequenceAndNonSequence(( SequenceValue )v2, v1)));
}
// Handle remaining AnyValues
bool isValue1 = v1 is Value;
bool isValue2 = v2 is Value;
int x = Boolean.compare(isValue1, isValue2);
if (x == 0)
{
//noinspection ConstantConditions
// Do not turn this into ?-operator
if (isValue1)
{
if (ternary)
{
return(_valueComparator.ternaryCompare(( Value )v1, ( Value )v2));
}
else
{
return(Comparison.from(_valueComparator.Compare(( Value )v1, ( Value )v2)));
}
}
else
{
// This returns int
return(Comparison.from(CompareVirtualValues(( VirtualValue )v1, ( VirtualValue )v2)));
}
}
return(Comparison.from(x));
}