package foo @native class A(val v: String) { fun m(i:Int, s:String): String = noImpl } @native fun A.nativeExt(i:Int, s:String): String = noImpl @native("nativeExt2AnotherName") fun A.nativeExt2(i:Int, s:String): String = noImpl fun bar(a: A, extLambda: A.(Int, String) -> String): String = a.(extLambda)(4, "boo") fun box(): String { val a = A("test") assertEquals("A.m test 4 boo", a.m(4, "boo")) assertEquals("A.m test 4 boo", bar(a, fun A.(i, s) = (A::m)(this, i, s))) assertEquals("nativeExt test 4 boo", a.nativeExt(4, "boo")) assertEquals("nativeExt test 4 boo", bar(a, fun A.(i, s) = (A::nativeExt)(this, i, s))) assertEquals("nativeExt2 test 4 boo", a.nativeExt2(4, "boo")) assertEquals("nativeExt2 test 4 boo", bar(a, fun A.(i, s) = (A::nativeExt2)(this, i, s))) return "OK" }