--- /dev/null
+
+type index = int;;
+
+type time = int;;
+
+type basic = N of int
+ | R of float
+ | Vec of vector
+ | Zero
+ | Error
+and vector = < size : int; nth : (index -> basic) >;;
+
+class type vector_type =
+ object
+ method size : int
+ method nth : index -> basic
+ end;;
+
+class type value_type =
+ object
+ method get : basic
+ method to_int : int
+ method to_float : float
+ method to_float_array : float array
+ method of_float_array : float array -> value_type
+ method to_string : string
+ method normalize : unit
+ method add : value_type -> value_type
+ method neg : value_type
+ method sub : value_type -> value_type
+ method mul : value_type -> value_type
+ method recip : value_type
+ method div : value_type -> value_type
+ method power : value_type -> value_type
+ method _and : value_type -> value_type
+ method _or : value_type -> value_type
+ method _xor : value_type -> value_type
+ method zero : value_type
+ method floor : value_type
+ method ceil : value_type
+ method rint : value_type
+ method int : value_type
+ method float : value_type
+ method sin : value_type
+ method asin : value_type
+ method cos : value_type
+ method acos : value_type
+ method tan : value_type
+ method atan : value_type
+ method atan2 : value_type -> value_type
+ method exp : value_type
+ method sqrt : value_type
+ method ln : value_type
+ method lg : value_type
+ method abs : value_type
+ method fmod : value_type -> value_type
+ method _mod : value_type -> value_type
+ method remainder : value_type -> value_type
+ method gt : value_type -> value_type
+ method lt : value_type -> value_type
+ method geq : value_type -> value_type
+ method leq : value_type -> value_type
+ method eq : value_type -> value_type
+ method neq : value_type -> value_type
+ method shl : value_type -> value_type
+ method shr : value_type -> value_type
+ method max : value_type -> value_type
+ method min : value_type -> value_type
+ end;;
+
+
+type symbol = Add
+ | Sub
+ | Mul
+ | Div
+ | Power
+ | Pass
+ | Stop
+ | And
+ | Or
+ | Xor
+ | Mem
+ | Delay
+ | Floor
+ | Ceil
+ | Rint
+ | Int
+ | Float
+ | Sin
+ | Asin
+ | Cos
+ | Acos
+ | Tan
+ | Atan
+ | Atan2
+ | Exp
+ | Sqrt
+ | Ln
+ | Lg
+ | Abs
+ | Fmod
+ | Mod
+ | Remainder
+ | Vectorize
+ | Vconcat
+ | Vpick
+ | Serialize
+ | Gt
+ | Lt
+ | Geq
+ | Leq
+ | Eq
+ | Neq
+ | Shl
+ | Shr
+ | Max
+ | Min
+ | Prefix
+ | Select2
+ | Select3
+ | Rdtable
+ | Rwtable
+
+type faust_exp =
+ Const of basic
+ | Ident of symbol
+ | Par of faust_exp * faust_exp
+ | Seq of faust_exp * faust_exp
+ | Rec of faust_exp * faust_exp
+ | Split of faust_exp * faust_exp
+ | Merge of faust_exp * faust_exp
+
+
+class type rate_type =
+ object
+ method to_int : int
+ method to_float : float
+ method to_string : string
+ method num : int
+ method denom : int
+ method equal : rate_type -> bool
+ method mul : int -> rate_type
+ method div : int -> rate_type
+ end
+
+class type signal_type =
+ object
+ method frequency : rate_type
+ method at : time -> value_type
+ method add_memory : int -> unit
+ method add : signal_type -> signal_type
+ method neg : signal_type
+ method sub : signal_type -> signal_type
+ method mul : signal_type -> signal_type
+ method div : signal_type -> signal_type
+ method power : signal_type -> signal_type
+ method _and : signal_type -> signal_type
+ method _or : signal_type -> signal_type
+ method _xor : signal_type -> signal_type
+ method delay : signal_type -> signal_type
+ method mem : signal_type
+ method vectorize : signal_type -> signal_type
+ method serialize : signal_type
+ method vconcat : signal_type -> signal_type
+ method vpick : signal_type -> signal_type
+ method floor : signal_type
+ method ceil : signal_type
+ method rint : signal_type
+ method int : signal_type
+ method float : signal_type
+ method sin : signal_type
+ method asin : signal_type
+ method cos : signal_type
+ method acos : signal_type
+ method tan : signal_type
+ method atan : signal_type
+ method atan2 : signal_type -> signal_type
+ method exp : signal_type
+ method sqrt : signal_type
+ method ln : signal_type
+ method lg : signal_type
+ method abs : signal_type
+ method fmod : signal_type -> signal_type
+ method _mod : signal_type -> signal_type
+ method remainder : signal_type -> signal_type
+ method gt : signal_type -> signal_type
+ method lt : signal_type -> signal_type
+ method geq : signal_type -> signal_type
+ method leq : signal_type -> signal_type
+ method eq : signal_type -> signal_type
+ method neq : signal_type -> signal_type
+ method shl : signal_type -> signal_type
+ method shr : signal_type -> signal_type
+ method max : signal_type -> signal_type
+ method min : signal_type -> signal_type
+ method rdtable : signal_type -> signal_type -> signal_type
+ method rwtable : signal_type -> signal_type ->
+ signal_type -> signal_type -> signal_type
+ method select2 : signal_type -> signal_type -> signal_type
+ method select3 : signal_type -> signal_type -> signal_type -> signal_type
+ method prefix : signal_type -> signal_type
+ end;;
+
+type matrix = float array array;;
+
+type data = float array array array;;
+
+class type beam_type =
+ object
+ method get : signal_type array
+ method width : int
+ method sub : int -> int -> beam_type
+ method cut : int -> beam_type * beam_type
+ method append : beam_type -> beam_type
+ method matching : int -> beam_type
+ method at : time -> value_type array
+ method output : int -> data
+ method frequency : rate_type array
+ end;;
+
+
+class type dimension_type =
+ object
+ method input : int
+ method output : int
+ method par : dimension_type -> dimension_type
+ method seq : dimension_type -> dimension_type
+ method split : dimension_type -> dimension_type
+ method merge : dimension_type -> dimension_type
+ method _rec : dimension_type -> dimension_type
+ end;;
+
+
+class type process_type =
+ object
+ method exp : faust_exp
+ method dim : dimension_type
+ method delay : int
+ method eval : beam_type -> beam_type
+ end;;
+
+
+class type io_type =
+ object
+ method set : string -> string -> unit
+ method read : string array -> beam_type
+ method write : rate_type array -> data -> string array
+ end;;