## lustrec / src / lustreSpec.ml @ 9ae027f8

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(********************************************************************) |
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(* *) |

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(* The LustreC compiler toolset / The LustreC Development Team *) |

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(* Copyright 2012 - -- ONERA - CNRS - INPT *) |

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(* *) |

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(* LustreC is free software, distributed WITHOUT ANY WARRANTY *) |

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(* under the terms of the GNU Lesser General Public License *) |

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(* version 2.1. *) |

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(* *) |

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(********************************************************************) |

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type ident = Utils.ident |

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type rat = Utils.rat |

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type tag = Utils.tag |

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type label = Utils.ident |

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type type_dec = |

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{ty_dec_desc: type_dec_desc; |

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ty_dec_loc: Location.t} |

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and type_dec_desc = |

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| Tydec_any |

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| Tydec_int |

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| Tydec_real |

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(* | Tydec_float *) |

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| Tydec_bool |

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| Tydec_clock of type_dec_desc |

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| Tydec_const of ident |

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| Tydec_enum of ident list |

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| Tydec_struct of (ident * type_dec_desc) list |

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| Tydec_array of Dimension.dim_expr * type_dec_desc |

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type typedec_desc = |

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{tydec_id: ident} |

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type typedef_desc = |

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{tydef_id: ident; |

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tydef_desc: type_dec_desc} |

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type clock_dec = |

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{ck_dec_desc: clock_dec_desc; |

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ck_dec_loc: Location.t} |

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and clock_dec_desc = |

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| Ckdec_any |

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| Ckdec_bool of (ident * ident) list |

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type constant = |

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| Const_int of int |

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| Const_real of Num.num * int * string (* (a, b, c) means a * 10^-b. c is the original string *) |

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| Const_array of constant list |

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| Const_tag of label |

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| Const_string of string (* used only for annotations *) |

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| Const_struct of (label * constant) list |

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type quantifier_type = Exists | Forall |

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type var_decl = |

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{var_id: ident; |

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var_orig:bool; |

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var_dec_type: type_dec; |

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var_dec_clock: clock_dec; |

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var_dec_const: bool; |

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var_dec_value: expr option; |

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mutable var_type: Types.type_expr; |

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mutable var_clock: Clocks.clock_expr; |

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var_loc: Location.t} |

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(** The core language and its ast. Every element of the ast contains its |

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location in the program text. The type and clock of an ast element |

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is mutable (and initialized to dummy values). This avoids to have to |

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duplicate ast structures (e.g. ast, typed_ast, clocked_ast). *) |

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(* The tag of an expression is a unique identifier used to distinguish |

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different instances of the same node *) |

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and expr = |

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{expr_tag: tag; |

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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; |

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mutable expr_annot: expr_annot option; |

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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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| Expr_array of expr list |

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| Expr_access of expr * Dimension.dim_expr |

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| Expr_power of expr * Dimension.dim_expr |

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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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and call_t = ident * expr * expr option |

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(* The third part denotes the boolean condition for resetting *) |

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and 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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(* The tag of an expression is a unique identifier used to distinguish |

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different instances of the same node *) |

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and eexpr = |

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{eexpr_tag: tag; |

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eexpr_qfexpr: expr; |

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eexpr_quantifiers: (quantifier_type * var_decl list) list; |

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mutable eexpr_type: Types.type_expr; |

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mutable eexpr_clock: Clocks.clock_expr; |

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mutable eexpr_normalized: (var_decl * eq list * var_decl list) option; |

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eexpr_loc: Location.t} |

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and expr_annot = |

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{annots: (string list * eexpr) list; |

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annot_loc: Location.t} |

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type node_annot = { |

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requires: eexpr list; |

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ensures: eexpr list; |

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behaviors: (string * eexpr list * eexpr list * Location.t) list; |

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spec_loc: Location.t; |

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} |

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type offset = |

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| Index of Dimension.dim_expr |

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| Field of label |

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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 statement = |

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| Eq of eq |

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| Aut of automata_desc |

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and automata_desc = |

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{aut_id : ident; |

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aut_handlers: handler_desc list; |

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aut_loc: Location.t} |

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and handler_desc = |

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{hand_state: ident; |

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hand_unless: (Location.t * expr * bool * ident) list; |

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hand_until: (Location.t * expr * bool * ident) list; |

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hand_locals: var_decl list; |

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hand_stmts: statement list; |

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hand_asserts: assert_t list; |

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hand_annots: expr_annot list; |

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hand_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_stmts: statement 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: node_annot option; |

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node_annot: expr_annot list; |

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} |

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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: node_annot option; |

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nodei_prototype: string option; |

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nodei_in_lib: string list; |

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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 top_decl_desc = |

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| Node of node_desc |

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| Const of const_desc |

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| ImportedNode of imported_node_desc |

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| Open of bool * string (* the boolean set to true denotes a local |

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lusi vs a lusi installed at system level *) |

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| TypeDef of typedef_desc |

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type top_decl = |

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{top_decl_desc: top_decl_desc; (* description of the symbol *) |

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top_decl_owner: Location.filename; (* the module where it is defined *) |

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top_decl_itf: bool; (* header or source file ? *) |

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top_decl_loc: Location.t} (* the location where it is defined *) |

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type program = top_decl list |

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type dep_t = Dep of |

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bool |

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* ident |

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* (top_decl list) |

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* bool (* is stateful *) |

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(************ Machine code types *************) |

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type value_t = |

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{ |

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value_desc: value_t_desc; |

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value_type: Types.type_expr; |

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value_annot: expr_annot option |

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} |

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and value_t_desc = |

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| Cst of constant |

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| LocalVar of var_decl |

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| StateVar of var_decl |

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| Fun of ident * value_t list |

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| Array of value_t list |

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| Access of value_t * value_t |

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| Power of value_t * value_t |

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type instr_t = |

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{ |

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instr_desc: instr_t_desc; (* main data: the content *) |

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(* lustre_expr: expr option; (* possible representation as a lustre expression *) *) |

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lustre_eq: eq option; (* possible representation as a lustre flow equation *) |

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} |

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and instr_t_desc = |

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| MLocalAssign of var_decl * value_t |

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| MStateAssign of var_decl * value_t |

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| MReset of ident |

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| MNoReset of ident |

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| MStep of var_decl list * ident * value_t list |

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| MBranch of value_t * (label * instr_t list) list |

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| MComment of string |

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(* Local Variables: *) |

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(* compile-command:"make -C .." *) |

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(* End: *) |