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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(* Certification of Imperative Programs / Jean-Christophe Filliâtre *)
(* $Id: penv.mli 5920 2004-07-16 20:01:26Z herbelin $ *)
open Ptype
open Past
open Names
open Libnames
open Term
(* Environment for imperative programs.
*
* Here we manage the global environment, which is imperative,
* and we provide a functional local environment.
*
* The most important functions, is_in_env, type_in_env and fold_all
* first look in the local environment then in the global one.
*)
(* local environments *)
type local_env
val empty : local_env
val add : (identifier * type_v) -> local_env -> local_env
val add_set : identifier -> local_env -> local_env
val is_local : local_env -> identifier -> bool
val is_local_set : local_env -> identifier -> bool
(* typed programs *)
type typing_info = {
env : local_env;
kappa : constr ml_type_c
}
type typed_program = (typing_info, constr) t
(* global environment *)
val add_global : identifier -> type_v -> typed_program option -> object_name
val add_global_set : identifier -> object_name
val is_global : identifier -> bool
val is_global_set : identifier -> bool
val lookup_global : identifier -> type_v
val all_vars : unit -> identifier list
val all_refs : unit -> identifier list
(* a table keeps the program (for extraction) *)
val find_pgm : identifier -> typed_program option
(* a table keeps the initializations of mutable objects *)
val initialize : identifier -> constr -> unit
val find_init : identifier -> constr
(* access in env (local then global) *)
val type_in_env : local_env -> identifier -> type_v
val is_in_env : local_env -> identifier -> bool
type type_info = Set | TypeV of type_v
val fold_all : (identifier * type_info -> 'a -> 'a) -> local_env -> 'a -> 'a
(* local environnements also contains a list of recursive functions
* with the associated variant *)
val add_recursion : identifier * (identifier*variant) -> local_env -> local_env
val find_recursion : identifier -> local_env -> identifier * variant
(* We also maintain a table of the currently edited proofs of programs
* in order to add them in the environnement when the user does Save *)
val new_edited : identifier -> type_v * typed_program -> unit
val is_edited : identifier -> bool
val register : identifier -> identifier -> unit
|
