gistfile1.nim

type tb_cell = distinct int
 
proc tb_put_cell(x: cuint; y: cuint; cell: ptr tb_cell) =
  echo "Hey"
 
proc put_cell*(x, y: cuint; cell: var tb_cell) =
  tb_put_cell(x, y, cell.addr)
 
# In application
 
proc put*(cell: var tb_cell; x, y: int):
  tb_put_cell(x.cuint, y.cuint, cell)

# kofish.nim(12, 13) Error: type mismatch: got (cuint, cuint, tb_cell)
# but expected one of: 
# kofish.tb_put_cell(x: cuint, y: cuint, cell: ptr tb_cell)