Created
January 13, 2016 15:01
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clara issue
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| (ns ruler.core | |
| (:gen-class) | |
| (:require [clara.rules :refer :all] | |
| [clara.tools.inspect :refer :all])) | |
| (defrecord Person [name age]) | |
| (defrule is-adult | |
| [Person (>= 21 age)] | |
| => | |
| (insert! (->Person))) | |
| (defquery get-persons | |
| [] | |
| [?person <- Person]) | |
| (defn print-persons | |
| [session] | |
| (doseq [{{name :name age :age} :?person} (query session get-persons)] | |
| (println name " " age)) | |
| session) | |
| (defn -main | |
| "I don't do a whole lot ... yet." | |
| [& args] | |
| (-> (mk-session 'ruler.core) | |
| (insert (->Person "Eric" 21)) | |
| (fire-rules) | |
| (print-persons))) |
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| Exception in thread "main" clojure.lang.ExceptionInfo: Exception in ruler.core/is-adult with bindings {} {:bindings {}, :name "ruler.core/is-adult", :rhs (do (clara.rules/insert! (ruler.core/->Person)))}, compiling:(/private/var/folders/5f/hzlntck12cj5mrlyd6j6ddkw0000gn/T/form-init175911532377559672.clj:1:124) | |
| at clojure.lang.Compiler.load(Compiler.java:7239) | |
| at clojure.lang.Compiler.loadFile(Compiler.java:7165) | |
| at clojure.main$load_script.invoke(main.clj:275) | |
| at clojure.main$init_opt.invoke(main.clj:280) | |
| at clojure.main$initialize.invoke(main.clj:308) | |
| at clojure.main$null_opt.invoke(main.clj:343) | |
| at clojure.main$main.doInvoke(main.clj:421) | |
| at clojure.lang.RestFn.invoke(RestFn.java:421) | |
| at clojure.lang.Var.invoke(Var.java:383) | |
| at clojure.lang.AFn.applyToHelper(AFn.java:156) | |
| at clojure.lang.Var.applyTo(Var.java:700) | |
| at clojure.main.main(main.java:37) | |
| Caused by: clojure.lang.ExceptionInfo: Exception in ruler.core/is-adult with bindings {} {:bindings {}, :name "ruler.core/is-adult", :rhs (do (clara.rules/insert! (ruler.core/->Person)))} | |
| at clojure.core$ex_info.invoke(core.clj:4593) | |
| at clara.rules.engine$fire_rules_STAR_$fn__4518$fn__4519.invoke(engine.cljc:1057) | |
| at clara.rules.engine$fire_rules_STAR_$fn__4518.invoke(engine.cljc:1047) | |
| at clara.rules.engine$fire_rules_STAR_.invoke(engine.cljc:1044) | |
| at clara.rules.engine.LocalSession.fire_rules(engine.cljc:1117) | |
| at clara.rules$fire_rules.invoke(rules.cljc:35) | |
| at ruler.core$_main.doInvoke(core.clj:28) | |
| at clojure.lang.RestFn.invoke(RestFn.java:397) | |
| at clojure.lang.Var.invoke(Var.java:375) | |
| at user$eval5.invoke(form-init175911532377559672.clj:1) | |
| at clojure.lang.Compiler.eval(Compiler.java:6782) | |
| at clojure.lang.Compiler.eval(Compiler.java:6772) | |
| at clojure.lang.Compiler.load(Compiler.java:7227) | |
| ... 11 more | |
| Caused by: clojure.lang.ArityException: Wrong number of args (0) passed to: core/eval6101/->Person--6116 | |
| at clojure.lang.AFn.throwArity(AFn.java:429) | |
| at clojure.lang.AFn.invoke(AFn.java:28) | |
| at user$eval6139$fn__6140.invoke(form-init175911532377559672.clj:1) | |
| at clara.rules.engine$fire_rules_STAR_$fn__4518$fn__4519.invoke(engine.cljc:1048) | |
| ... 22 more |
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