Created
October 3, 2021 01:01
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| (require '[clojure.spec.alpha :as s]) | |
| ; ============================== | |
| (s/def ::foo int?) | |
| (s/def ::bar ::foo) | |
| (s/form ::foo) ;=> clojure.core/int? | |
| (s/form ::bar) ;=> clojure.core/int? | |
| ; ================== | |
| (s/def ::bar-spec (s/spec ::foo)) | |
| (s/form ::bar-spec) ;=> clojure.core/int? | |
| ; ================== | |
| (s/def ::bar-and (s/and ::foo)) | |
| (s/form ::bar-and) ;=> (clojure.spec.alpha/and :user/foo) | |
| ; ================== | |
| (s/def ::m (s/keys :req [::foo ::bar ::bar-spec ::bar-and])) | |
| ; ================== | |
| (require '[clojure.spec.gen.alpha :as gen]) | |
| ; ================== | |
| (gen/generate (s/gen ::bar)) ;=> 49496307 | |
| (gen/generate (s/gen ::bar-spec)) ;=> -14008816 | |
| (gen/generate (s/gen ::bar-and)) ;=> 17245 | |
| (gen/generate (s/gen ::m)) | |
| ;=> #:user{:foo 326028, :bar -128609, :bar-spec -85018582, :bar-and 2230855} | |
| ; ================== | |
| (gen/generate (s/gen ::bar {::foo (fn [] (gen/return 0))})) ;=> 0 | |
| (gen/generate (s/gen ::bar-spec {::foo (fn [] (gen/return 0))})) ;=> -2 | |
| (gen/generate (s/gen ::bar-and {::foo (fn [] (gen/return 0))})) ;=> 0 | |
| (gen/generate (s/gen ::m {::foo (fn [] (gen/return 0))})) | |
| ;=> #:user{:foo 0, :bar 0, :bar-spec 31, :bar-and 0} | |
| ; ================== | |
| (gen/generate (s/gen ::bar {::bar (fn [] (gen/return 0))})) ;=> -492158 | |
| (gen/generate (s/gen ::bar-spec {::bar-spec (fn [] (gen/return 0))})) ;=> 0 | |
| (gen/generate (s/gen ::bar-and {::bar-and (fn [] (gen/return 0))})) ;=> 0 | |
| (gen/generate (s/gen ::m | |
| {::bar (fn [] (gen/return 0)) | |
| ::bar-spec (fn [] (gen/return 0)) | |
| ::bar-and (fn [] (gen/return 0))})) | |
| ;=> #:user{:foo 183249700, :bar -1, :bar-spec 0, :bar-and 0} | |
| ; ================== |
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https://ask.clojure.org/index.php/12043/spec-alias-behavior