Hello, please, explain why autocasting not workin...

# announcements

[egordeev1]

Hello,
please, explain why autocasting not working.
i have the code:
if (fragment is SearchFragment?) {
(fragment as SearchFragment?)?.setOnlineNumber(online_number)
}
but if i write:
if (fragment is SearchFragment?) {
(fragment)?.setOnlineNumber(online_number)
}
it tells me "Unresolved reference: setOnlineNumber"

[altavir]

You should at least use ``` to separate code from text. Otherwise it is not readable. In your second sample round brackets are not needed, but I do not think it affects the result.

[Czar]

Hm... it works for me...

https://kek.gg/i/3m9JyD.png▾

[karelpeeters]

I fragment a local variable?

[agrosner]

What version of kotlin? Also if var it will not smart cast if it's a mutable property

[Czar]

@agrosner actually it should smart-cast even for var if it's local and isn't modified between assignment and the check.

[agrosner]

yeah mutable property i meant of class

[karelpeeters]

Well an immutable one from another class is also not autocasted, since the getter might not always return the same thing.

[karelpeeters]

And even if it did for now the behavior might change with binary compatibility.

[agrosner]

if its a computed property it autocasts. if it has a custom getter than no