Evaluating null produce reference error

[TheoVC]

Evaluating a simple expression like

null?.Trim()

should return null

but instead is returning an exception "reference not set to an instance of an object"

[TheoVC]

the problem is in the EvaluateVarOrFunc() line 1781 the obj is null

[TheoVC]

changed the line adding the ?:
Type[] inferedGenericsTypes = obj?.GetType().GenericTypeArguments;

and aparently fix the issue... but I'm not an expert

[codingseb]

Hello @TheoVC Thanks to opening this issue. I will look at this bug as soon as possible and pubish a corrective version.

[codingseb]

Your correction is right for this bug.
But I realised that there is an other bug with null conditional operator.
When you evaluate something like :
null?.Trim().Length
It generate a NullReferenceException when evaluating Length In C# it does not because.
Null conditional when null should not evaluate other Sub properties, methods and indexing.
I will also correct this bug before publishing the corrective version.

[codingseb]

OK I just published Version 1.4.10.0 of ExpressionEvaluator that contains corrections for these bugs.
Thanks again to reporting this.