Hi. Can someone help me understanding why IntelliJ...

# intellij

[herlevsen]

Hi. Can someone help me understanding why IntelliJ does not show the names of the parameters when calling a lambda returned from another function? In this instance i would expect the intellisense to say “country: String” instead of just "String”

[Mike]

The Lambda only has a type as it’s a functional interface. At least I think that’s what is happening here. It can only show names for ‘real’ function calls, and not calls to a Lambda interface.

I suspect it doesn’t carry parameter names around because the fact you called it country in your usage isn’t required. By default, it would just be it.

[herlevsen]

@Mike aren’t you confusing it with a function/lambda that is passed as a parameter?

[herlevsen]

If i give the returned function two parameters, intellisense says “String, String”

[Alowaniak]

I'm pretty sure he isn't confusing it.
You also don't get the hint if you declare a lambda yourself

[Alowaniak]

I think you can specify the type with parameters though @herlevsen

[Alowaniak]

So yea, it's just that it could only infer the return type to be (String) -> Unit

[herlevsen]

It was more the point of it being “it” by default

[herlevsen]

Well yeah, can’t argue with that, but I don’t understand why though. Would it be Kotlin or IntelliJ that cannot infer it? Then I might submit a feature request

[Alowaniak]

I think kotlin, but I don't know