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Diffstat (limited to 'ltac/taccoerce.mli')
-rw-r--r-- | ltac/taccoerce.mli | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/ltac/taccoerce.mli b/ltac/taccoerce.mli new file mode 100644 index 00000000..0b67f872 --- /dev/null +++ b/ltac/taccoerce.mli @@ -0,0 +1,96 @@ +(************************************************************************) +(* v * The Coq Proof Assistant / The Coq Development Team *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2016 *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(************************************************************************) + +open Util +open Names +open Term +open Misctypes +open Pattern +open Genarg +open Geninterp + +(** Coercions from highest level generic arguments to actual data used by Ltac + interpretation. Those functions examinate dynamic types and try to return + something sensible according to the object content. *) + +exception CannotCoerceTo of string +(** Exception raised whenever a coercion failed. *) + +(** {5 High-level access to values} + + The [of_*] functions cast a given argument into a value. The [to_*] do the + converse, and return [None] if there is a type mismatch. + +*) + +module Value : +sig + type t = Val.t + + val normalize : t -> t + (** Eliminated the leading dynamic type casts. *) + + val of_constr : constr -> t + val to_constr : t -> constr option + val of_uconstr : Glob_term.closed_glob_constr -> t + val to_uconstr : t -> Glob_term.closed_glob_constr option + val of_int : int -> t + val to_int : t -> int option + val to_list : t -> t list option + val to_option : t -> t option option + val to_pair : t -> (t * t) option +end + +(** {5 Coercion functions} *) + +val coerce_to_constr_context : Value.t -> constr + +val coerce_var_to_ident : bool -> Environ.env -> Value.t -> Id.t + +val coerce_to_ident_not_fresh : Evd.evar_map -> Environ.env -> Value.t -> Id.t + +val coerce_to_intro_pattern : Environ.env -> Value.t -> Tacexpr.delayed_open_constr intro_pattern_expr + +val coerce_to_intro_pattern_naming : + Environ.env -> Value.t -> intro_pattern_naming_expr + +val coerce_to_hint_base : Value.t -> string + +val coerce_to_int : Value.t -> int + +val coerce_to_constr : Environ.env -> Value.t -> constr_under_binders + +val coerce_to_uconstr : Environ.env -> Value.t -> Glob_term.closed_glob_constr + +val coerce_to_closed_constr : Environ.env -> Value.t -> constr + +val coerce_to_evaluable_ref : + Environ.env -> Value.t -> evaluable_global_reference + +val coerce_to_constr_list : Environ.env -> Value.t -> constr list + +val coerce_to_intro_pattern_list : + Loc.t -> Environ.env -> Value.t -> Tacexpr.intro_patterns + +val coerce_to_hyp : Environ.env -> Value.t -> Id.t + +val coerce_to_hyp_list : Environ.env -> Value.t -> Id.t list + +val coerce_to_reference : Environ.env -> Value.t -> Globnames.global_reference + +val coerce_to_quantified_hypothesis : Value.t -> quantified_hypothesis + +val coerce_to_decl_or_quant_hyp : Environ.env -> Value.t -> quantified_hypothesis + +val coerce_to_int_or_var_list : Value.t -> int or_var list + +(** {5 Missing generic arguments} *) + +val wit_constr_context : (Empty.t, Empty.t, constr) genarg_type + +val wit_constr_under_binders : (Empty.t, Empty.t, constr_under_binders) genarg_type |