How to apply the same tactic to multiple match patterns in Ltac

Question

I'd like to apply the same ltac_expr to multiple match_patterns in the Ltac language. For instance, I would like to do something like

match goal with
| H : context[true] |- _
| H : context[false] |- _ => my_tactic
end

as in OCaml, which is a syntax error in Ltac.

Thanks!