(************************************************************************) (* * The Rocq Prover / The Rocq Development Team *) (* v * Copyright INRIA, CNRS and contributors *) (* <O___,, * (see version control and CREDITS file for authors & dates) *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) (* * (see LICENSE file for the text of the license) *) (************************************************************************)
open Names open Environ open EConstr open Evd open Mod_subst
(** {6 This is the type of class kinds } *) type cl_typ =
| CL_SORT
| CL_FUN
| CL_SECVAR of variable
| CL_CONST of Constant.t
| CL_IND of inductive
| CL_PROJ of Projection.Repr.t
(** Equality over [cl_typ] *) val cl_typ_eq : cl_typ -> cl_typ -> bool
val subst_cl_typ : env -> substitution -> cl_typ -> cl_typ
(** Comparison of [cl_typ] *) val cl_typ_ord : cl_typ -> cl_typ -> int
(** This is the type of coercion kinds *) type coe_typ = GlobRef.t
(** This is the type of infos for declared coercions *) type coe_info_typ = {
coe_value : GlobRef.t;
coe_local : bool;
coe_reversible : bool;
coe_is_identity : bool;
coe_is_projection : Projection.Repr.t option;
coe_source : cl_typ;
coe_target : cl_typ;
coe_param : int;
}
(** This is the type of paths from a class to another *) type inheritance_path = coe_info_typ list
(** {6 Access to classes infos } *)
val class_exists : cl_typ -> bool
(** @raise Not_found if this type is not a class *) val class_nparams : cl_typ -> int
(** [find_class_type env sigma c] returns the head reference of [c],
its universe instance and its arguments *) val find_class_type : env -> evar_map -> types -> cl_typ * EInstance.t * constr list
val find_class_glob_type : 'a Glob_term.glob_constr_g -> cl_typ
(** raises [Not_found] if not convertible to a class *) val class_of : env -> evar_map -> types -> types * cl_typ
val class_args_of : env -> evar_map -> types -> constr list
val subst_coercion : substitution -> coe_info_typ -> coe_info_typ
(** Set [update] to update an already declared coercion (default [false]). *) val declare_coercion : env -> evar_map -> ?update:bool -> coe_info_typ -> unit
(** {6 Access to coercions infos } *) val coercion_exists : coe_typ -> bool
(** @raise Not_found in the following functions when no path exists *)
(** given one (or two) types these function also return the class (classes)
of the type and its class_args_of *)
val lookup_path_between_class : cl_typ * cl_typ -> inheritance_path val lookup_path_between : env -> evar_map -> src:types -> tgt:types ->
inheritance_path val lookup_path_to_fun_from : env -> evar_map -> types -> inheritance_path val lookup_path_to_sort_from : env -> evar_map -> types -> inheritance_path val lookup_pattern_path_between :
env -> inductive * inductive -> (constructor * int) list
val path_is_reversible : inheritance_path -> bool
(**/**) (* Crade *) val install_path_printer :
((cl_typ * cl_typ) * inheritance_path -> Pp.t) -> unit val install_path_comparator :
(env -> evar_map -> cl_typ -> inheritance_path -> inheritance_path -> bool) -> unit (**/**)
(** {6 This is for printing purpose } *) val string_of_class : cl_typ -> string val pr_class : cl_typ -> Pp.t val inheritance_graph : unit -> ((cl_typ * cl_typ) * inheritance_path) list val classes : unit -> cl_typ list val coercions : unit -> coe_info_typ list
(** [hide_coercion] returns the number of params to skip if the coercion must
be hidden, [None] otherwise; it raises [Not_found] if not a coercion *) val hide_coercion : coe_typ -> int option
module ClTypSet : CSet.ExtS withtype elt = cl_typ
val reachable_from : cl_typ -> ClTypSet.t
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