考虑以下文本或链路层端口号规范:
(require '[clojure.spec.alpha :as spec])
(spec/def ::text (spec/and string? not-empty))
(spec/valid? ::text "a") ; => true
(spec/valid? ::text "") ; => false
(spec/def ::port (spec/and pos-int? (partial > 65535)))
(spec/valid? ::port 4) ; => true
(spec/valid? ::port 0) ; => false
(spec/def ::text-or-port (spec/or ::text ::port))
(spec/valid? ::text-or-port 5) ; => true
(spec/valid? ::text-or-port "hi") ; => false
出于某种原因,它只接受端口号而不接受文本,为什么会这样?