Is there a way to get sealed class smart casting to work when filtering a collection on an `is` pred...

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[wakingrufus]

Is there a way to get sealed class smart casting to work when filtering a collection on an is predicate and then doing operations on the subclass further down the chain?

[spand]

filterIsInstance() ?

[wakingrufus]

hmm

[wakingrufus]

ok

[wakingrufus]

in this case, i am checking something within a pair

[wakingrufus]

but ill try to see if I can change it up a bit to work this out

[wakingrufus]

thanks

[marstran]

That doesn't work because of erasure. I got bitten by that the other day.

[spand]

If its inside a Pair then do a mapNotNull to get it converted to the right type

[spand]

ie. mapNotNull { p -> (p.first as? Class)?.let { it to p.second} }

[wakingrufus]

ok cool.

[wakingrufus]

thanks!