then I guess rather pass "this" ?

Please use threads 😉

??

Hehe 😛

class Derp {
    fun foo() = bar()
}

fun Derp.bar() = 5

should just work.

yes but If I want to give a specific instance as receiver, I need to use "with" I think

Derp().bar()

works too.

with(receiver){myfunc()}

That works too.

Just learned this one class MyThis { fun OtherClass.method() = println(this) } fun that( block: MyThis.() -> Unit ) = MyThis().block() that { OtherClass().method() } Calls --> MyThis.method() with this == MyThis