public static UnaryOperatorKind WithOverflowChecksIfApplicable(this UnaryOperatorKind kind, bool enabled)
{
if (enabled)
{
// If it's dynamic and we're in a checked context then just mark it as checked,
// regardless of whether it is +x -x !x ~x ++x --x x++ or x--. Let the lowering
// pass sort out what to do with it.
if (kind.IsDynamic())
{
return(kind | UnaryOperatorKind.Checked);
}
if (kind.IsIntegral())
{
switch (kind.Operator())
{
case UnaryOperatorKind.PrefixIncrement:
case UnaryOperatorKind.PostfixIncrement:
case UnaryOperatorKind.PrefixDecrement:
case UnaryOperatorKind.PostfixDecrement:
case UnaryOperatorKind.UnaryMinus:
return(kind | UnaryOperatorKind.Checked);
}
}
return(kind);
}
else
{
return(kind & ~UnaryOperatorKind.Checked);
}
}