92 lines
2.7 KiB
OCaml
92 lines
2.7 KiB
OCaml
(**************************************************************************)
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(* *)
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(* Heptagon *)
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(* *)
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(* Author : Marc Pouzet *)
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(* Organization : Demons, LRI, University of Paris-Sud, Orsay *)
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(* *)
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(**************************************************************************)
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(* global data in the symbol tables *)
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open Names
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open Types
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(** Warning: Whenever these types are modified,
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interface_format_version should be incremented. *)
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let interface_format_version = "30"
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type ck =
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| Cbase
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| Con of ck * constructor_name * name
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(** Node argument : inputs and outputs *)
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type arg = {
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a_name : name option;
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a_type : ty;
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a_clock : ck; (** [a_clock] set to [Cbase] means at the node activation clock *)
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}
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(** Node static parameters *)
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type param = { p_name : name; p_type : ty }
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(** Constraints on size expressions *)
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type size_constraint =
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| Cequal of static_exp * static_exp (* e1 = e2 *)
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| Clequal of static_exp * static_exp (* e1 <= e2 *)
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| Cfalse
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(** Node signature *)
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type node = {
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node_inputs : arg list;
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node_outputs : arg list;
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node_stateful : bool;
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node_params : param list;
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node_params_constraints : size_constraint list }
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type field = { f_name : field_name; f_type : ty }
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type structure = field list
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type type_def =
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| Tabstract
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| Talias of ty
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| Tenum of constructor_name list
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| Tstruct of structure
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type const_def = { c_type : ty; c_value : static_exp }
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let rec ck_to_sck ck =
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let ck = Clocks.ck_repr ck in
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match ck with
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| Clocks.Cbase -> Cbase
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| Clocks.Con (ck,c,x) -> Con(ck_to_sck ck, c, Idents.source_name x)
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| _ -> Misc.internal_error "Signature couldn't translate ck" 1
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let names_of_arg_list l = List.map (fun ad -> ad.a_name) l
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let types_of_arg_list l = List.map (fun ad -> ad.a_type) l
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let mk_arg name ty ck = { a_type = ty; a_name = name; a_clock = ck }
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let mk_param name ty = { p_name = name; p_type = ty }
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let mk_field n ty = { f_name = n; f_type = ty }
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let mk_const_def ty value =
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{ c_type = ty; c_value = value }
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let mk_node ?(constraints = []) ins outs stateful params =
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{ node_inputs = ins;
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node_outputs = outs;
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node_stateful = stateful;
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node_params = params;
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node_params_constraints = constraints }
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let rec field_assoc f = function
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| [] -> raise Not_found
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| { f_name = n; f_type = ty }::l ->
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if f = n then ty
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else field_assoc f l
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