(use "errno.witx")

(typename $excuse
  (enum u8
     $dog_ate
     $traffic
     $sleeping))

(typename $car_config
  (flags u8
    $automatic
    $awd
    $suv))

(typename $cookie
  (int u64
    (const $start 0)))

(typename $bool
  (enum u8
    $false
    $true))

(typename $pair_ints
  (struct
    (field $first s32)
    (field $second s32)))

(typename $pair_int_ptrs
  (struct
    (field $first (@witx const_pointer s32))
    (field $second (@witx const_pointer s32))))

(typename $named_ptr (@witx pointer f32))
(typename $named_ptr_to_ptr (@witx pointer (@witx pointer f64)))

(typename $const_excuse_array (array (@witx const_pointer $excuse)))
(typename $excuse_array (array (@witx pointer $excuse)))

(module $foo
  (@interface func (export "baz")
    (param $an_excuse $excuse)
    (param $an_excuse_by_reference (@witx pointer $excuse))
    (param $a_lamer_excuse (@witx const_pointer $excuse))
    (param $two_layers_of_excuses (@witx pointer (@witx const_pointer $excuse)))
    (result $error $errno))
  (@interface func (export "bat")
    (param $an_int u32)
    (result $error $errno)
    (result $doubled_it f32))
  (@interface func (export "sum_of_pair")
    (param $an_pair $pair_ints)
    (result $error $errno)
    (result $doubled s64))
  (@interface func (export "sum_of_pair_of_ptrs")
    (param $an_pair $pair_int_ptrs)
    (result $error $errno)
    (result $doubled s64))
  (@interface func (export "reduce_excuses")
    (param $excuses $const_excuse_array)
    (result $error $errno)
    (result $reduced $excuse)
  )
  (@interface func (export "populate_excuses")
    (param $excuses $excuse_array)
    (result $error $errno)
  )
  (@interface func (export "configure_car")
    (param $old_config $car_config)
    (param $old_config_by_ptr (@witx const_pointer $car_config))
    (result $error $errno)
    (result $new_config $car_config)
  )
  (@interface func (export "hello_string")
    (param $a_string string)
    (result $error $errno)
    (result $total_bytes u32)
  )
  (@interface func (export "cookie_cutter")
    (param $init_cookie $cookie)
    (result $error $errno)
    (result $is_start $bool)
  )
)