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Diffstat (limited to 'plugins/ltac/tactic_matching.mli')
-rw-r--r-- | plugins/ltac/tactic_matching.mli | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/plugins/ltac/tactic_matching.mli b/plugins/ltac/tactic_matching.mli new file mode 100644 index 00000000..0722c687 --- /dev/null +++ b/plugins/ltac/tactic_matching.mli @@ -0,0 +1,52 @@ +(************************************************************************) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2018 *) +(* <O___,, * (see CREDITS file for the list of authors) *) +(* \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) *) +(************************************************************************) + + +(** 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 * Ltac_pretype.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 |