(************************************************************************) (* * 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 Evd open Names open Environ open EConstr open Glob_term
(** {6 Coercions. } *)
type coercion_trace
val empty_coercion_trace : coercion_trace
val reapply_coercions : evar_map -> coercion_trace -> EConstr.t -> EConstr.t
(** [inh_coerce_to_sort env isevars j] coerces [j] to a type; i.e. it inserts a coercion into [j], if needed, in such a way it gets as
type a sort; it fails if no coercion is applicable *) val inh_coerce_to_sort : ?loc:Loc.t -> ?use_coercions:bool ->
env -> evar_map -> unsafe_judgment -> evar_map * unsafe_type_judgment
(** [inh_coerce_to_base env isevars j] coerces [j] to its base type; i.e. it inserts a coercion into [j], if needed, in such a way it gets as
type its base type (the notion depends on the coercion system) *) val inh_coerce_to_base : ?loc:Loc.t -> program_mode:bool ->
env -> evar_map -> unsafe_judgment -> evar_map * unsafe_judgment
(** [remove_subset env sigma t] applies program mode transformations
to [t], recursively transforming [{x : A | P}] into [A] *) val remove_subset : env -> evar_map -> types -> types
(** [inh_conv_coerce_to resolve_tc Loc.t env isevars j t] coerces [j] to an object of type [t]; i.e. it inserts a coercion into [j], if needed, in such a way [t] and [j.uj_type] are convertible; it fails if no coercion is applicable. resolve_tc=false disables resolving type classes (as the last
resort before failing) *)
(** [inh_pattern_coerce_to loc env isevars pat ind1 ind2] coerces the Cases pattern [pat] typed in [ind1] into a pattern typed in [ind2];
raises [Not_found] if no coercion found *) val inh_pattern_coerce_to :
?loc:Loc.t -> env -> cases_pattern -> inductive -> inductive -> cases_pattern
(** A plugin can override the coercion mechanism by registering a hook here. Note that these hooks will only be trigerred when no direct or reversible coercion applies. Newly registered hooks are not active by default, see [activate_hook] below. The same hook cannot be registered twice, except if [override] is [true]. Beware that this addition is not persistent, it is up to the plugin to use
libobject if needed. *) val register_hook : name:string -> ?override:bool -> hook -> unit
(** Activate a previously registered hook.
Most recently activated hooks are tried first. *) val activate_hook : name:string -> unit
(** Deactivate a hook. If the hook wasn't registered/active,
this does nothing. *) val deactivate_hook : name:string -> unit
type delayed_app_body
val start_app_body : evar_map -> constr -> delayed_app_body
val push_arg : delayed_app_body -> constr -> delayed_app_body
val force_app_body : delayed_app_body -> constr
val reapply_coercions_body : evar_map -> coercion_trace -> delayed_app_body -> delayed_app_body
(** [inh_app_fun resolve_tc env isevars j] coerces [j] to a function; i.e. it inserts a coercion into [j], if needed, in such a way it gets as type a product; it returns [j] if no coercion is applicable. resolve_tc=false disables resolving type classes (as the last
resort before failing) *) val inh_app_fun : program_mode:bool -> resolve_tc:bool -> ?use_coercions:bool ->
env -> evar_map -> ?flags:Evarconv.unify_flags -> delayed_app_body -> types -> evar_map * delayed_app_body * types * coercion_trace
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