heptagon/compiler/main/hept2mls.ml

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(***********************************************************************)
(* *)
(* Heptagon *)
(* *)
(* Gwenael Delaval, LIG/INRIA, UJF *)
(* Leonard Gerard, Parkas, ENS *)
(* Adrien Guatto, Parkas, ENS *)
(* Cedric Pasteur, Parkas, ENS *)
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(* Marc Pouzet, Parkas, ENS *)
(* *)
(* Copyright 2012 ENS, INRIA, UJF *)
(* *)
(* This file is part of the Heptagon compiler. *)
(* *)
(* Heptagon is free software: you can redistribute it and/or modify it *)
(* under the terms of the GNU General Public License as published by *)
(* the Free Software Foundation, either version 3 of the License, or *)
(* (at your option) any later version. *)
(* *)
(* Heptagon is distributed in the hope that it will be useful, *)
(* but WITHOUT ANY WARRANTY; without even the implied warranty of *)
(* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *)
(* GNU General Public License for more details. *)
(* *)
(* You should have received a copy of the GNU General Public License *)
(* along with Heptagon. If not, see <http://www.gnu.org/licenses/> *)
(* *)
(***********************************************************************)
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(* removing switch statements and translation into Minils *)
open Location
open Misc
open Names
open Idents
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open Static
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open Types
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open Clocks
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open Format
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open Minils
open Mls_utils
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open Signature
module Error =
struct
type error =
| Ereset_not_var
| Eunsupported_language_construct
| Enormalization
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let message loc kind =
begin match kind with
| Ereset_not_var ->
eprintf "%aOnly variables can be used for resets.@."
print_location loc
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| Eunsupported_language_construct ->
eprintf "%aThis construct is not supported by MiniLS.@."
print_location loc
| Enormalization ->
eprintf "%aThis construct should have been normalized.@."
print_location loc
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end;
raise Errors.Error
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end
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let fresh = Idents.gen_fresh "hept2mls"
(function Heptagon.Enode f -> (shortname f)
| _ -> "n")
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let translate_var { Heptagon.v_ident = n; Heptagon.v_type = ty; Heptagon.v_linearity = linearity;
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Heptagon.v_loc = loc; Heptagon.v_clock = ck } =
mk_var_dec ~loc:loc n ty linearity ck
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let translate_reset = function
| Some { Heptagon.e_desc = Heptagon.Evar n } -> Some n
| Some re -> Error.message re.Heptagon.e_loc Error.Ereset_not_var
| None -> None
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let translate_iterator_type = function
| Heptagon.Imap -> Imap
| Heptagon.Imapi -> Imapi
| Heptagon.Ifold -> Ifold
| Heptagon.Ifoldi -> Ifoldi
| Heptagon.Imapfold -> Imapfold
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let rec translate_op = function
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| Heptagon.Eifthenelse -> Eifthenelse
| Heptagon.Efun f -> Efun f
| Heptagon.Enode f -> Enode f
| Heptagon.Efield -> assert false
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| Heptagon.Efield_update -> Efield_update
| Heptagon.Earray_fill -> Earray_fill
| Heptagon.Eselect -> Eselect
| Heptagon.Eselect_dyn -> Eselect_dyn
| Heptagon.Eupdate -> Eupdate
| Heptagon.Eselect_slice -> Eselect_slice
| Heptagon.Eselect_trunc -> Eselect_trunc
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| Heptagon.Econcat -> Econcat
| Heptagon.Earray -> Earray
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| Heptagon.Etuple -> Misc.internal_error "hept2mls Etuple"
| Heptagon.Earrow -> assert false
| Heptagon.Ereinit -> assert false
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let translate_app app =
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mk_app ~params:app.Heptagon.a_params
~unsafe:app.Heptagon.a_unsafe
~id:(Some (fresh app.Heptagon.a_op))
(translate_op app.Heptagon.a_op)
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let mk_extvalue e w =
let clock = match e.Heptagon.e_ct_annot with
| None -> fresh_clock ()
| Some ct -> assert_1 (unprod ct)
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in
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mk_extvalue ~loc:e.Heptagon.e_loc ~linearity:e.Heptagon.e_linearity
~ty:e.Heptagon.e_ty ~clock:clock w
let rec translate_extvalue e =
match e.Heptagon.e_desc with
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| Heptagon.Econst c -> mk_extvalue e (Wconst c)
| Heptagon.Evar x -> mk_extvalue e (Wvar x)
| Heptagon.Ewhen (e', c, x) ->
mk_extvalue e (Wwhen (translate_extvalue e', c, x))
| Heptagon.Eapp({ Heptagon.a_op = Heptagon.Efield;
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Heptagon.a_params = params }, e_list, _) ->
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let e' = assert_1 e_list in
let f = assert_1 params in
let fn = match f.se_desc with Sfield fn -> fn | _ -> assert false in
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mk_extvalue e (Wfield (translate_extvalue e', fn))
| Heptagon.Eapp({ Heptagon.a_op = Heptagon.Ereinit }, e_list, _) ->
let e1, e2 = assert_2 e_list in
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mk_extvalue e (Wreinit (translate_extvalue e1, translate_extvalue e2))
| _ -> Error.message e.Heptagon.e_loc Error.Enormalization
let rec translate ({ Heptagon.e_desc = desc; Heptagon.e_ty = ty;
Heptagon.e_level_ck = b_ck; Heptagon.e_linearity = linearity;
Heptagon.e_ct_annot = a_ct; Heptagon.e_loc = loc; } as e) =
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let desc = match desc with
| Heptagon.Econst _
| Heptagon.Evar _
| Heptagon.Eapp({ Heptagon.a_op = Heptagon.Efield | Heptagon.Ereinit }, _, _) ->
let w = translate_extvalue e in
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Eextvalue w
| Heptagon.Ewhen (e,c,x) -> Ewhen (translate e, c, x)
| Heptagon.Epre(None, e) ->
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Efby(None, translate_extvalue e)
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| Heptagon.Epre(Some c, e) ->
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Efby(Some c, translate_extvalue e)
| Heptagon.Efby ({ Heptagon.e_desc = Heptagon.Econst c }, e) ->
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Efby(Some c, translate_extvalue e)
| Heptagon.Estruct f_e_list ->
let f_e_list = List.map
(fun (f, e) -> (f, translate_extvalue e)) f_e_list in
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Estruct f_e_list
| Heptagon.Eapp({ Heptagon.a_op = Heptagon.Earrow }, _, _) ->
Error.message loc Error.Eunsupported_language_construct
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| Heptagon.Eapp(app, e_list, reset) ->
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Eapp (translate_app app, List.map translate_extvalue e_list, translate_reset reset)
| Heptagon.Eiterator(it, app, n, pe_list, e_list, reset) ->
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Eiterator (translate_iterator_type it,
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translate_app app, n,
List.map translate_extvalue pe_list,
List.map translate_extvalue e_list,
translate_reset reset)
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| Heptagon.Efby _ | Heptagon.Esplit _
| Heptagon.Elast _ ->
Error.message loc Error.Eunsupported_language_construct
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| Heptagon.Emerge (x, c_e_list) ->
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Emerge (x, List.map (fun (c,e)-> c, translate_extvalue e) c_e_list)
in
match a_ct with
| None -> mk_exp b_ck ty ~loc:loc ~linearity:linearity desc
| Some ct -> mk_exp b_ck ty ~ct:ct ~loc:loc ~linearity:linearity desc
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let rec translate_pat = function
| Heptagon.Evarpat(n) -> Evarpat n
| Heptagon.Etuplepat(l) -> Etuplepat (List.map translate_pat l)
let rec translate_eq { Heptagon.eq_desc = desc; Heptagon.eq_loc = loc } =
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match desc with
| Heptagon.Eeq(p, e) ->
begin match e.Heptagon.e_desc with
| Heptagon.Eapp({ Heptagon.a_unsafe = unsafe },_,_)
| Heptagon.Eiterator(_,{ Heptagon.a_unsafe = unsafe},_,_,_,_) ->
mk_equation ~loc:loc unsafe (translate_pat p) (translate e)
| _ -> mk_equation ~loc:loc false (translate_pat p) (translate e)
end
| Heptagon.Eblock _ | Heptagon.Eswitch _
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| Heptagon.Epresent _ | Heptagon.Eautomaton _ | Heptagon.Ereset _ ->
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Error.message loc Error.Eunsupported_language_construct
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let translate_contract contract =
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match contract with
| None -> None
| Some { Heptagon.c_block = { Heptagon.b_local = v;
Heptagon.b_equs = eq_list };
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Heptagon.c_assume = e_a;
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Heptagon.c_enforce = e_g;
Heptagon.c_assume_loc = e_a_loc;
Heptagon.c_enforce_loc = e_g_loc;
Heptagon.c_controllables = l_c } ->
Some { c_local = List.map translate_var v;
c_eq = List.map translate_eq eq_list;
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c_assume = translate_extvalue e_a;
c_enforce = translate_extvalue e_g;
c_assume_loc = translate_extvalue e_a_loc;
c_enforce_loc = translate_extvalue e_g_loc;
c_controllables = List.map translate_var l_c }
let node n =
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enter_node n.Heptagon.n_name;
{ n_name = n.Heptagon.n_name;
n_stateful = n.Heptagon.n_stateful;
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n_unsafe = n.Heptagon.n_unsafe;
n_input = List.map translate_var n.Heptagon.n_input;
n_output = List.map translate_var n.Heptagon.n_output;
n_contract = translate_contract n.Heptagon.n_contract;
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n_controller_call = ([],[]);
n_local = List.map translate_var n.Heptagon.n_block.Heptagon.b_local;
n_equs = List.map translate_eq n.Heptagon.n_block.Heptagon.b_equs;
n_loc = n.Heptagon.n_loc ;
n_params = n.Heptagon.n_params;
n_param_constraints = n.Heptagon.n_param_constraints;
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n_mem_alloc = [] }
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let typedec
{Heptagon.t_name = n; Heptagon.t_desc = tdesc; Heptagon.t_loc = loc} =
let onetype = function
| Heptagon.Type_abs -> Type_abs
| Heptagon.Type_alias ln -> Type_alias ln
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| Heptagon.Type_enum tag_list -> Type_enum tag_list
| Heptagon.Type_struct field_ty_list -> Type_struct field_ty_list
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in
{ t_name = n; t_desc = onetype tdesc; t_loc = loc }
let const_dec cd =
{ Minils.c_name = cd.Heptagon.c_name;
Minils.c_value = cd.Heptagon.c_value;
Minils.c_type = cd.Heptagon.c_type;
Minils.c_loc = cd.Heptagon.c_loc; }
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let program_desc pd = match pd with
| Heptagon.Ptype td -> Ptype (typedec td)
| Heptagon.Pnode nd -> Pnode (node nd)
| Heptagon.Pconst cd -> Pconst (const_dec cd)
let program
{ Heptagon.p_modname = modname;
Heptagon.p_opened = modules;
Heptagon.p_desc = desc_list } =
{ p_modname = modname;
p_format_version = minils_format_version;
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p_opened = modules;
p_desc = List.map program_desc desc_list }
let signature s =
{ sig_name = s.Heptagon.sig_name;
sig_inputs = s.Heptagon.sig_inputs;
sig_stateful = s.Heptagon.sig_stateful;
sig_outputs = s.Heptagon.sig_outputs;
sig_params = s.Heptagon.sig_params;
sig_param_constraints = s.Heptagon.sig_param_constraints;
sig_external = s.Heptagon.sig_external;
sig_loc = s.Heptagon.sig_loc }
let interface i =
let interface_decl id = match id with
| Heptagon.Itypedef td -> Itypedef (typedec td)
| Heptagon.Iconstdef cd -> Iconstdef (const_dec cd)
| Heptagon.Isignature s -> Isignature (signature s)
in
{ i_modname = i.Heptagon.i_modname;
i_opened = i.Heptagon.i_opened;
i_desc = List.map interface_decl i.Heptagon.i_desc }