I’m trying to use dsl marker to allow some methods...

# codereview

[christophsturm]

I’m trying to use dsl marker to allow some methods only on the root , some only on the leaf, and some on both. but it seems to not work.
I cannot call `rootAndLeaf`despite it being in an interface without dsl marker. maybe the dsl marker is inherited?

@DslMarker
annotation class MyDSL

@MyDSL
interface RootOnly {
    fun rootOnly()
}
interface RootAndLeaf : RootOnly {
    fun call(function: Leaf.() -> Unit)
    fun rootAndLeaf()
}
@MyDSL
interface Leaf {
    fun leaf()
}

val block: RootAndLeaf.() -> Unit = {
    call {
        leaf()
        rootAndLeaf() // cannot be called by implicit receiver
    }
}

[Roukanken]

messing with it a bit, it's definitely inherited

when you flip the implicit recievers (eg, Leaf -> RootAndLeaf -> ..., instead of RootAndLeaf -> Leaf -> ..., that you have), then leaf() starts being blocked and rootAndLeaf() works


if you just want to fix it tho, it's easy to just flip the inheritance. eg, Root, Leaf inheriting from RootAndLeaf fixes stuff, and makes more sense to model it like that