heptagon/compiler/global/signature.ml
2011-05-25 09:12:13 +02:00

78 lines
2.4 KiB
OCaml

(**************************************************************************)
(* *)
(* Heptagon *)
(* *)
(* Author : Marc Pouzet *)
(* Organization : Demons, LRI, University of Paris-Sud, Orsay *)
(* *)
(**************************************************************************)
(* global data in the symbol tables *)
open Names
open Types
open Linearity
(** Warning: Whenever these types are modified,
interface_format_version should be incremented. *)
let interface_format_version = "lin1"
(** Node argument *)
type arg = { a_name : name option; a_type : ty; a_linearity : linearity }
(** Node static parameters *)
type param = { p_name : name; p_type : ty }
(** Constraints on size expressions *)
type size_constraint =
| Cequal of static_exp * static_exp (* e1 = e2 *)
| Clequal of static_exp * static_exp (* e1 <= e2 *)
| Cfalse
(** Node signature *)
type node = {
node_inputs : arg list;
node_outputs : arg list;
node_stateful : bool;
node_params : param list;
node_params_constraints : size_constraint list }
type field = { f_name : field_name; f_type : ty }
type structure = field list
type type_def =
| Tabstract
| Talias of ty
| Tenum of constructor_name list
| Tstruct of structure
type const_def = { c_type : ty; c_value : static_exp }
let names_of_arg_list l = List.map (fun ad -> ad.a_name) l
let types_of_arg_list l = List.map (fun ad -> ad.a_type) l
let linearities_of_arg_list l = List.map (fun ad -> ad.a_linearity) l
let mk_arg ?(linearity = Ltop) name ty = { a_type = ty; a_linearity = linearity; a_name = name }
let mk_param name ty = { p_name = name; p_type = ty }
let mk_field n ty = { f_name = n; f_type = ty }
let mk_const_def ty value =
{ c_type = ty; c_value = value }
let mk_node ?(constraints = []) ins outs stateful params =
{ node_inputs = ins;
node_outputs = outs;
node_stateful = stateful;
node_params = params;
node_params_constraints = constraints }
let rec field_assoc f = function
| [] -> raise Not_found
| { f_name = n; f_type = ty }::l ->
if f = n then ty
else field_assoc f l