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redexpr.mli
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redexpr.mli
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(************************************************************************)
(* * The Coq Proof Assistant / The Coq 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) *)
(************************************************************************)
(** Interpretation layer of redexprs such as hnf, cbv, etc. *)
open Constr
open EConstr
open Pattern
open Genredexpr
open Reductionops
open Locus
type red_expr =
(constr, Tacred.evaluable_global_reference, constr_pattern) red_expr_gen
type red_expr_val
val out_with_occurrences : 'a with_occurrences -> occurrences * 'a
val eval_red_expr : Environ.env -> red_expr -> red_expr_val
val reduction_of_red_expr_val : ?occs:(Locus.occurrences_expr * int) ->
red_expr_val -> e_reduction_function * cast_kind
(** Composition of {!reduction_of_red_expr_val} with {!eval_red_expr} *)
val reduction_of_red_expr :
Environ.env -> red_expr -> e_reduction_function * cast_kind
(** [true] if we should use the vm to verify the reduction *)
(** Adding a custom reduction (function to be use at the ML level)
NB: the effect is permanent. *)
val declare_reduction : string -> reduction_function -> unit
(** Adding a custom reduction (function to be called a vernac command).
The boolean flag is the locality. *)
val declare_red_expr : bool -> string -> red_expr -> unit
(** Opaque and Transparent commands. *)
(** Sets the expansion strategy of a constant. When the boolean is
true, the effect is non-synchronous (i.e. it does not survive
section and module closure). *)
val set_strategy :
bool -> (Conv_oracle.level * Tacred.evaluable_global_reference list) list -> unit
(** call by value normalisation function using the virtual machine *)
val cbv_vm : reduction_function
(** [subst_red_expr sub c] performs the substitution [sub] on all kernel
names appearing in [c] *)
val subst_red_expr : Mod_subst.substitution -> red_expr -> red_expr
open Constrexpr
open Libnames
val wit_red_expr :
((constr_expr,qualid or_by_notation,constr_expr) red_expr_gen,
(Genintern.glob_constr_and_expr,Tacred.evaluable_global_reference and_short_name Locus.or_var,Genintern.glob_constr_pattern_and_expr) red_expr_gen,
(EConstr.t,Tacred.evaluable_global_reference,Pattern.constr_pattern) red_expr_gen)
Genarg.genarg_type