aqua Aaa

import "builtin.aqua"

export structuralTypingTest

data WideData:
  s: string
  n: u32

data ExactData:
  s: string

ability ExactAbility:
  s: string
  arr(s: string, s2: string, s3: string, s4: string) -> string
  exact: ExactData

ability WideAbility:
  s: string
  arr(s: string, s2: string, s3: string, s4: string) -> string
  g: string
  exact: WideData

func ss(s1: string, s2: string, s3: string, s4: string) -> string:
  <- Op.concat_strings(Op.concat_strings(Op.concat_strings(s1, s2), s3), s4)

func main{ExactAbility}(someData: ExactData, secondData: ExactData) -> string:
    <- ExactAbility.arr(someData.s, ExactAbility.exact.s, secondData.s, ExactAbility.s)

func structuralTypingTest() -> string:
  wd = WideData(s = "some_string", n = 32)

  WAbility = WideAbility(s = "ab_string", g = "", arr = ss, exact = wd)
  <- main{WAbility}(wd, WAbility.exact)