Ltac_plugin.Tactic_matchingThis file extends Matching with the main logic for Ltac's (lazy)match and (lazy)match goal.
type 'a t = {subst : Constr_matching.bound_ident_map * Ltac_pretype.extended_patvar_map; |
context : Constr_matching.context Names.Id.Map.t; |
terms : EConstr.constr Names.Id.Map.t; |
lhs : 'a; |
}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 Constr_matching.matching_result), and a Constr.t substitution mapping corresponding to matched hypotheses.
val match_term : Environ.env -> Evd.evar_map -> EConstr.constr -> (Constr_matching.binding_bound_vars * Constr_matching.instantiated_pattern, Tacexpr.glob_tactic_expr) Tacexpr.match_rule list -> Tacexpr.glob_tactic_expr t Proofview.tacticmatch_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_goal : Environ.env -> Evd.evar_map -> EConstr.named_context -> EConstr.constr -> (Constr_matching.binding_bound_vars * Constr_matching.instantiated_pattern, Tacexpr.glob_tactic_expr) Tacexpr.match_rule list -> Tacexpr.glob_tactic_expr t Proofview.tacticmatch_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.