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(* ----------------------------------------------------------------------------
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 * SchedMCore - A MultiCore Scheduling Framework
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 * Copyright (C) 2009-2011, ONERA, Toulouse, FRANCE - LIFL, Lille, FRANCE
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 *
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 * This file is part of Prelude
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 *
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 * Prelude is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public License
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 * as published by the Free Software Foundation ; either version 2 of
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 * the License, or (at your option) any later version.
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 *
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 * Prelude is distributed in the hope that it will be useful, but
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 * WITHOUT ANY WARRANTY ; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this program ; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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 * USA
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 *---------------------------------------------------------------------------- *)
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open LustreSpec
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(*
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(** The core language and its ast. *)
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type ident = Utils.ident
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type label = Utils.ident
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type rat = Utils.rat
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type tag = Utils.tag
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type constant =
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  | Const_int of int
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  | Const_real of string
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  | Const_float of float
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  | Const_array of constant list
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  | Const_tag  of label
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  | Const_struct of (label * constant) list
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val dummy_type_dec: type_dec
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type type_dec = LustreSpec.type_dec
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type clock_dec = LustreSpec.clock_dec
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val dummy_clock_dec: clock_dec
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type var_decl = LustreSpec.var_decl
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type expr =
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  {expr_tag: tag; (* Unique identifier *)
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   expr_desc: expr_desc;
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   mutable expr_type: Types.type_expr;
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   mutable expr_clock: Clocks.clock_expr;
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   mutable expr_delay: Delay.delay_expr; (* Used for the initialisation check *)
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   mutable expr_annot: LustreSpec.expr_annot option; (* Spec *)
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   expr_loc: Location.t}
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and expr_desc =
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| Expr_const of constant
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| Expr_ident of ident
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| Expr_tuple of expr list
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| Expr_ite   of expr * expr * expr
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| Expr_arrow of expr * expr
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| Expr_fby of expr * expr
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(*
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| Expr_struct of (label * expr) list
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| Expr_field of expr * label
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| Expr_update of expr * (label * expr)
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*)
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| Expr_array of expr list
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| Expr_access of expr * Dimension.dim_expr (* acces(e,i) is the i-th element 
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					      of array epxression e *)
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| Expr_power of expr * Dimension.dim_expr (* power(e,n) is the array of 
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					     size n filled with expression e *)
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| Expr_pre of expr
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| Expr_when of expr * ident * label
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| Expr_merge of ident * (label * expr) list
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| Expr_appl of call_t
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| Expr_uclock of expr * int
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| Expr_dclock of expr * int
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| Expr_phclock of expr * rat
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and call_t = ident * expr * (ident * label) option (* The third part denotes the reseting clock label and value *)
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type assert_t = 
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    {
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      assert_expr: expr;
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      assert_loc: Location.t
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    } 
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type eq =
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    {eq_lhs: ident list;
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     eq_rhs: expr;
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     eq_loc: Location.t}
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type node_desc =
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    {node_id: ident;
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     mutable node_type: Types.type_expr;
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     mutable node_clock: Clocks.clock_expr;
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     node_inputs: var_decl list;
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     node_outputs: var_decl list;
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     node_locals: var_decl list;
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     mutable node_gencalls: expr list;
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     mutable node_checks: Dimension.dim_expr list;
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     node_asserts: assert_t list; 
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     node_eqs: eq list;
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     mutable node_dec_stateless: bool;
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     mutable node_stateless: bool option;
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     node_spec: LustreSpec.node_annot option;
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     node_annot: LustreSpec.expr_annot option;}
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type imported_node_desc =
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    {nodei_id: ident;
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     mutable nodei_type: Types.type_expr;
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     mutable nodei_clock: Clocks.clock_expr;
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     nodei_inputs: var_decl list;
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     nodei_outputs: var_decl list;
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     nodei_stateless: bool;
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     nodei_spec: LustreSpec.node_annot option;
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     nodei_prototype: string option;
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     nodei_in_lib: string option;
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}
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(*
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type imported_fun_desc =
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    {fun_id: ident;
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     mutable fun_type: Types.type_expr;
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     fun_inputs: var_decl list;
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     fun_outputs: var_decl list;
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     fun_spec: LustreSpec.node_annot option;}
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*)
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type const_desc = 
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    {const_id: ident; 
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     const_loc: Location.t; 
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     const_value: constant;      
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     mutable const_type: Types.type_expr;
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    }
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(* type sensor_desc = *)
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(*     {sensor_id: ident; *)
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(*      sensor_wcet: int} *)
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(* type actuator_desc = *)
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(*     {actuator_id: ident; *)
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(*      actuator_wcet: int} *)
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type top_decl_desc =
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  | Node of node_desc
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  | Consts of const_desc list
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  | ImportedNode of imported_node_desc
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  (* | ImportedFun of imported_fun_desc *)
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  (* | SensorDecl of sensor_desc *)
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  (* | ActuatorDecl of actuator_desc *)
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  | Open of bool * string
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type top_decl =
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    {top_decl_desc: top_decl_desc;
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     top_decl_loc: Location.t}
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type program = top_decl list
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type error =
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    Main_not_found
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  | Main_wrong_kind
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  | No_main_specified
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  | Unbound_symbol of ident
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  | Already_bound_symbol of ident
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*)
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exception Error of Location.t * error
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val dummy_type_dec: type_dec
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val dummy_clock_dec: clock_dec
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val mktyp: Location.t -> type_dec_desc -> type_dec
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val mkclock: Location.t -> clock_dec_desc -> clock_dec
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val mkvar_decl: Location.t -> ident * type_dec * clock_dec * bool (* is const *) -> var_decl
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val var_decl_of_const: const_desc -> var_decl
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val mkexpr: Location.t ->  expr_desc -> expr
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val mkeq: Location.t -> ident list * expr -> eq
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val mkassert: Location.t -> expr -> assert_t
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val mktop_decl: Location.t -> top_decl_desc -> top_decl
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val mkpredef_call: Location.t -> ident -> expr list -> expr
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val mk_new_name: var_decl list -> ident -> ident
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val node_table : (ident, top_decl) Hashtbl.t
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val node_name: top_decl -> ident
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val node_inputs: top_decl -> var_decl list
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val node_from_name: ident -> top_decl
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val is_generic_node: top_decl -> bool
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val is_imported_node: top_decl -> bool
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val consts_table: (ident, const_desc) Hashtbl.t
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val type_table: (type_dec_desc, type_dec_desc) Hashtbl.t
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val get_repr_type: type_dec_desc -> type_dec_desc
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val is_user_type: type_dec_desc -> bool
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val tag_true: label
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val tag_false: label
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val tag_table: (label, type_dec_desc) Hashtbl.t
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val field_table: (label, type_dec_desc) Hashtbl.t
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val get_enum_type_tags: type_dec_desc -> label list
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val get_struct_type_fields: type_dec_desc -> (label * type_dec_desc) list
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val const_of_bool: bool -> constant
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val const_is_bool: constant -> bool
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val const_negation: constant -> constant
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val const_or: constant -> constant -> constant
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val const_and: constant -> constant -> constant
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val const_xor: constant -> constant -> constant
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val const_impl: constant -> constant -> constant
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val get_node_vars: node_desc -> var_decl list
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val get_node_var: ident -> node_desc -> var_decl
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val get_node_eq: ident -> node_desc -> eq
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(* val get_const: ident -> constant *)
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val sort_handlers : (label * 'a) list -> (label * 'a) list
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val is_eq_expr: expr -> expr -> bool
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val pp_error :  Format.formatter -> error -> unit
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(* Caution, returns an untyped, unclocked, etc, expression *)
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val is_tuple_expr : expr -> bool
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val ident_of_expr : expr -> ident
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val expr_of_ident : ident -> Location.t -> expr
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val expr_list_of_expr : expr -> expr list
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val expr_of_expr_list : Location.t -> expr list -> expr
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val call_of_expr: expr -> (ident * expr list * (ident * label) option)
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val expr_of_dimension: Dimension.dim_expr -> expr
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val dimension_of_expr: expr -> Dimension.dim_expr
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val dimension_of_const: Location.t -> constant -> Dimension.dim_expr
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(* REMOVED, pushed in utils.ml   val new_tag : unit -> tag *)
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val add_internal_funs: unit -> unit
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val pp_prog_type : Format.formatter -> program -> unit
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val pp_prog_clock : Format.formatter -> program -> unit
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val get_nodes : program -> node_desc list
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 val get_consts : program -> const_desc list 
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(* val prog_unfold_consts: program -> program *)
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val expr_replace_var: (ident -> ident) -> expr -> expr
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val eq_replace_rhs_var: (ident -> bool) -> (ident -> ident) -> eq -> eq
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(** rename_prog f_node f_var f_const prog *)
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val rename_prog: (ident -> ident) -> (ident -> ident) -> (ident -> ident) -> program -> program
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val update_expr_annot: expr -> LustreSpec.expr_annot -> expr
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(** Annotation expression related functions *)
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val mkeexpr: Location.t ->  expr -> eexpr
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val merge_node_annot: node_annot -> node_annot -> node_annot 
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val extend_eexpr: (quantifier_type * var_decl list) list -> eexpr -> eexpr
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val update_expr_annot: expr -> expr_annot -> expr
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(* val mkpredef_call: Location.t -> ident -> eexpr list -> eexpr*)
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(* Local Variables: *)
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(* compile-command:"make -C .." *)
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(* End: *)