What does mean `Cannot use 'CapturedTypeConstructor(out ObjectProperty<Any>)' as reified type ...

# getting-started

[ValV]

What does mean Cannot use 'CapturedTypeConstructor(out ObjectProperty<Any>)' as reified type parameter?

[robin]

Can you show us the code triggering the error?

[ValV]

tableview { column("New", SimpleObjectProperty::class).useTextField() }

there is implementation of the function:

inline fun <S, reified T> TableColumn<S, T?>.useTextField(...) = apply { ... }

I know, it's TornadoFX-specific and, perhaps, misuse of the function

[ValV]

What does mean CapturedTypeConstructor?

[robin]

What's the signature of column?

[ValV]

fun <S, T: Any> TableView<S>.column(String, KClass<T>, TableColumn<S, T>.() -> Unit = {}): TableColumn<S, T>

[ValV]

When useTextField() is used with no arguments it ends up with requireNotNull. But I think useTextField is not even called (in this case)

[robin]

I'm getting another compile error with your code, and if I fix that it compiles fine, so I'm guessing this is more context-specific than I thought. Have you tried asking in #tornadofx ?

[ValV]

How do you fix it?

[robin]

I'm not using TornadoFX myself so I'm running a little dummy setup here:

[robin]

The compile error there is a different one than the one you have, but I can fix that by changing

inline fun <S, reified T> TableColumn<S, T?>.useTextField() = apply { }

to

inline fun <S, reified T> TableColumn<S, T>.useTextField() = apply { }

(Make T non-nullable)

[robin]

And then it compiles fine

[ValV]

Cool, I have the same Require/Found error, when I use .. column(...) { useTextField() } i.e. useTextField() inside the column

[ValV]

I think it's tricky to change TornadoFX sources, but thanks, I can play a bit with overriding useTextField