当我运行以下代码时,出现了下面的错误:
(run 3 [q]
(fresh [a0 a1 a2
b0 b1 b2
c0 c1 c2]
(== q [[a0 a1 a2] [b0 b1 b2] [c0 c1 c2]])
(fd/in a0 a1 a2 b0 b1 b2 c0 c1 c2 (fd/interval 1 9))
(fd/distinct [a0 a1 a2 b0 b1 b2 c0 c1 c2])
(fd/eq
(= a0 4)
(= 22 (- (* a0 a1) a2))
(= -1 (-> b0 (* b1) (- b2)))
)))
错误:
2. Unhandled clojure.lang.Compiler$CompilerException
Error compiling src/euler/core.clj at (1392:5)
1. Caused by java.lang.IllegalArgumentException
Can't call nil
core.clj: 3081 clojure.core/eval
main.clj: 240 clojure.main/repl/read-eval-print/fn
main.clj: 240 clojure.main/repl/read-eval-print
main.clj: 258 clojure.main/repl/fn
main.clj: 258 clojure.main/repl
RestFn.java: 1523 clojure.lang.RestFn/invoke
interruptible_eval.clj: 87 clojure.tools.nrepl.middleware.interruptible-eval/evaluate/fn
AFn.java: 152 clojure.lang.AFn/applyToHelper
AFn.java: 144 clojure.lang.AFn/applyTo
core.clj: 630 clojure.core/apply
core.clj: 1868 clojure.core/with-bindings*
RestFn.java: 425 clojure.lang.RestFn/invoke
...
注意带有线程宏->
的那一行,在CIDER中我会对其进行宏展开,看起来一切都很好,但最终代码崩溃了。我认为这是宏的问题,但不确定原因。有什么想法吗?