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|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
open Term
open Environ
open Evd
type unify_flags = {
modulo_conv_on_closed_terms : Names.transparent_state option;
use_metas_eagerly_in_conv_on_closed_terms : bool;
modulo_delta : Names.transparent_state;
modulo_delta_types : Names.transparent_state;
check_applied_meta_types : bool;
resolve_evars : bool;
use_pattern_unification : bool;
use_meta_bound_pattern_unification : bool;
frozen_evars : ExistentialSet.t;
restrict_conv_on_strict_subterms : bool;
modulo_betaiota : bool;
modulo_eta : bool;
allow_K_in_toplevel_higher_order_unification : bool
}
val default_unify_flags : unify_flags
val default_no_delta_unify_flags : unify_flags
val elim_flags : unify_flags
val elim_no_delta_flags : unify_flags
(** The "unique" unification fonction *)
val w_unify :
env -> evar_map -> conv_pb -> ?flags:unify_flags -> constr -> constr -> evar_map
(** [w_unify_to_subterm env (c,t) m] performs unification of [c] with a
subterm of [t]. Constraints are added to [m] and the matched
subterm of [t] is also returned. *)
val w_unify_to_subterm :
env -> evar_map -> ?flags:unify_flags -> constr * constr -> evar_map * constr
val w_unify_to_subterm_all :
env -> evar_map -> ?flags:unify_flags -> constr * constr -> (evar_map * constr) list
val w_unify_meta_types : env -> ?flags:unify_flags -> evar_map -> evar_map
(** [w_coerce_to_type env evd c ctyp typ] tries to coerce [c] of type
[ctyp] so that its gets type [typ]; [typ] may contain metavariables *)
val w_coerce_to_type : env -> evar_map -> constr -> types -> types ->
evar_map * constr
(*i This should be in another module i*)
(** [abstract_list_all env evd t c l]
abstracts the terms in l over c to get a term of type t
(exported for inv.ml) *)
val abstract_list_all :
env -> evar_map -> constr -> constr -> constr list -> constr
(* For tracing *)
val w_merge : env -> bool -> unify_flags -> evar_map *
(metavariable * constr * (instance_constraint * instance_typing_status)) list *
(env * types pexistential * types) list -> evar_map
val unify_0 : Environ.env ->
Evd.evar_map ->
Evd.conv_pb ->
unify_flags ->
Term.types ->
Term.types ->
Evd.evar_map * Evd.metabinding list *
(Environ.env * Term.types Term.pexistential * Term.constr) list
|
