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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 *)
(************************************************************************)
(*i $Id$ i*)
(*i*)
open Names
open Term
open Environ
open Evd
open Reductionops
open Closure
open Rawterm
open Termops
(*i*)
type reduction_tactic_error =
InvalidAbstraction of env * constr * (env * Type_errors.type_error)
exception ReductionTacticError of reduction_tactic_error
(*s Reduction functions associated to tactics. \label{tacred} *)
val is_evaluable : env -> evaluable_global_reference -> bool
exception Redelimination
(* Red (raise user error if nothing reducible) *)
val red_product : reduction_function
(* Red (raise Redelimination if nothing reducible) *)
val try_red_product : reduction_function
(* Simpl *)
val simpl : reduction_function
(* Simpl only at the head *)
val whd_simpl : reduction_function
(* Hnf: like whd_simpl but force delta-reduction of constants that do
not immediately hide a non reducible fix or cofix *)
val hnf_constr : reduction_function
(* Unfold *)
val unfoldn :
(occurrences * evaluable_global_reference) list -> reduction_function
(* Fold *)
val fold_commands : constr list -> reduction_function
(* Pattern *)
val pattern_occs : (occurrences * constr) list -> reduction_function
(* Rem: Lazy strategies are defined in Reduction *)
(* Call by value strategy (uses Closures) *)
val cbv_norm_flags : Closure.RedFlags.reds -> reduction_function
val cbv_beta : local_reduction_function
val cbv_betaiota : local_reduction_function
val cbv_betadeltaiota : reduction_function
val compute : reduction_function (* = [cbv_betadeltaiota] *)
(* [reduce_to_atomic_ind env sigma t] puts [t] in the form [t'=(I args)]
with [I] an inductive definition;
returns [I] and [t'] or fails with a user error *)
val reduce_to_atomic_ind : env -> evar_map -> types -> inductive * types
(* [reduce_to_quantified_ind env sigma t] puts [t] in the form
[t'=(x1:A1)..(xn:An)(I args)] with [I] an inductive definition;
returns [I] and [t'] or fails with a user error *)
val reduce_to_quantified_ind : env -> evar_map -> types -> inductive * types
(* [reduce_to_quantified_ref env sigma ref t] try to put [t] in the form
[t'=(x1:A1)..(xn:An)(ref args)] and raise [Not_found] if not possible *)
val reduce_to_quantified_ref :
env -> evar_map -> Libnames.global_reference -> types -> types
val reduce_to_atomic_ref :
env -> evar_map -> Libnames.global_reference -> types -> types
val contextually : bool -> occurrences * constr -> reduction_function
-> reduction_function
(* Compatibility *)
(* use [simpl] instead of [nf] *)
val nf : reduction_function
|
