Let’s say I have, as part of a DSL, the following ...

# announcements

[jbnizet]

Let’s say I have, as part of a DSL, the following class

class ListScope {
    internal val items = mutableListOf<BulletedListItem>()

    operator fun String.unaryMinus() = items.add(BulletedListItem(this))
}

allowing me to use

list {
    - "first item"
    - "second item"
}

Am I right to say that it’s impossible to do the same with an extension function of ListScope?

I.e. something like

class ListScope {
    internal val items = mutableListOf<BulletedListItem>()
}

operator fun ListScope.String.unaryMinus() = items.add(BulletedListItem(this))

[robin]

Yeah, functions with multiple receivers are not supported at the moment. There is an open discussion issue around this feature here: https://youtrack.jetbrains.com/issue/KT-10468