diff options
Diffstat (limited to 'pretyping/coercion.mli')
| -rw-r--r-- | pretyping/coercion.mli | 105 |
1 files changed, 49 insertions, 56 deletions
diff --git a/pretyping/coercion.mli b/pretyping/coercion.mli index f06f58f4..f511f977 100644 --- a/pretyping/coercion.mli +++ b/pretyping/coercion.mli @@ -1,69 +1,62 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2014 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) (************************************************************************) -open Util open Evd open Names open Term -open Sign open Environ -open Evarutil open Glob_term -module type S = sig - (** {6 Coercions. } *) - - (** [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 : - bool -> env -> evar_map -> unsafe_judgment -> evar_map * unsafe_judgment - - (** [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 -> - 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 -> - env -> evar_map -> unsafe_judgment -> evar_map * unsafe_judgment - - (** [inh_coerce_to_prod env isevars t] coerces [t] to a product type *) - val inh_coerce_to_prod : loc -> - env -> evar_map -> type_constraint_type -> evar_map * type_constraint_type - - (** [inh_conv_coerce_to resolve_tc loc 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) *) - val inh_conv_coerce_to : bool -> loc -> - env -> evar_map -> unsafe_judgment -> type_constraint_type -> evar_map * unsafe_judgment - - val inh_conv_coerce_rigid_to : bool -> loc -> - env -> evar_map -> unsafe_judgment -> type_constraint_type -> evar_map * unsafe_judgment - - (** [inh_conv_coerces_to loc env isevars t t'] checks if an object of type [t] - is coercible to an object of type [t'] adding evar constraints if needed; - it fails if no coercion exists *) - val inh_conv_coerces_to : loc -> - env -> evar_map -> types -> type_constraint_type -> evar_map - - (** [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 -> cases_pattern -> inductive -> inductive -> cases_pattern -end - -module Default : S +(** {6 Coercions. } *) + +(** [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 : bool -> + env -> evar_map -> unsafe_judgment -> evar_map * unsafe_judgment + +(** [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.t -> + 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.t -> + env -> evar_map -> unsafe_judgment -> evar_map * unsafe_judgment + +(** [inh_coerce_to_prod env isevars t] coerces [t] to a product type *) +val inh_coerce_to_prod : Loc.t -> + env -> evar_map -> types -> evar_map * 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) *) +val inh_conv_coerce_to : bool -> Loc.t -> + env -> evar_map -> unsafe_judgment -> types -> evar_map * unsafe_judgment + +val inh_conv_coerce_rigid_to : bool -> Loc.t -> + env -> evar_map -> unsafe_judgment -> types -> evar_map * unsafe_judgment + +(** [inh_conv_coerces_to loc env isevars t t'] checks if an object of type [t] + is coercible to an object of type [t'] adding evar constraints if needed; + it fails if no coercion exists *) +val inh_conv_coerces_to : Loc.t -> + env -> evar_map -> types -> types -> evar_map + +(** [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.t -> env -> cases_pattern -> inductive -> inductive -> cases_pattern |