package coq-core
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doc/ltac_plugin/Ltac_plugin/Tactic_matching/index.html
Module Ltac_plugin.Tactic_matchingSource
This 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.