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(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2012 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(** This file extends Matching with the main logic for Ltac's
(lazy)match and (lazy)match goal. *)
(** [t] is the type of matching successes. It ultimately contains a
{!Tacexpr.glob_tactic_expr} representing the left-hand side of the
corresponding matching rule, a matching substitution to be
applied, a context substitution mapping identifier to context like
those of {!Matching.matching_result}), and a {!Term.constr}
substitution mapping corresponding to matched hypotheses. *)
type 'a t = {
subst : Constr_matching.bound_ident_map * Pattern.extended_patvar_map ;
context : EConstr.constr Names.Id.Map.t;
terms : EConstr.constr Names.Id.Map.t;
lhs : 'a;
}
(** [match_term env sigma term rules] matches the term [term] with the
set of matching rules [rules]. The environment [env] and the
evar_map [sigma] are not currently used, but avoid code
duplication. *)
val match_term :
Environ.env ->
Evd.evar_map ->
EConstr.constr ->
(Tacexpr.binding_bound_vars * Pattern.constr_pattern, Tacexpr.glob_tactic_expr) Tacexpr.match_rule list ->
Tacexpr.glob_tactic_expr t Proofview.tactic
(** [match_goal env sigma hyps concl rules] matches the goal
[hyps|-concl] with the set of matching rules [rules]. The
environment [env] and the evar_map [sigma] are used to check
convertibility for pattern variables shared between hypothesis
patterns or the conclusion pattern. *)
val match_goal:
Environ.env ->
Evd.evar_map ->
EConstr.named_context ->
EConstr.constr ->
(Tacexpr.binding_bound_vars * Pattern.constr_pattern, Tacexpr.glob_tactic_expr) Tacexpr.match_rule list ->
Tacexpr.glob_tactic_expr t Proofview.tactic
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