func Main()
  t.4 = HeapAllocZ(8)
  [t.4+0] = :functable_A
  t.3 = t.4
  t.3 = t.3
  t.6 = [t.3+0]
  t.7 = [t.6+0]
  t.5 = call t.7(t.3 )
  t.8 = t.5
  PrintIntS(t.8)
  ret

const functable_A
   :A_set

func A_set(this )
  [this+4] = 3
  t.0 = 1
  ret t.0

const functable_B
   :B_get
   :A_set

func B_get(this )
  [this+8] = 12
  t.0 = [this+8]
  ret t.0

func AllocArray(size)
  bytes = MulS(size 4)
  bytes = Add(bytes 4)
  v = HeapAllocZ(bytes)
  [v] = size
  ret v