Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

67 lines (57 sloc) 1.77 kb
;; Copyright (c) Stephen C. Gilardi. All rights reserved. The use and
;; distribution terms for this software are covered by the Eclipse Public
;; License 1.0 (http://opensource.org/licenses/eclipse-1.0.php) which can
;; be found in the file epl-v10.html at the root of this distribution. By
;; using this software in any fashion, you are agreeing to be bound by the
;; terms of this license. You must not remove this notice, or any other,
;; from this software.
;;
;; clojure.contrib.condition.example.clj
;;
;; scgilardi (gmail)
;; Created 09 June 2009
(ns example.condition
(:use (clojure.contrib
[condition
:only (handler-case print-stack-trace raise *condition*)])))
(defn func [x y]
"Raises an exception if x is negative"
(when (neg? x)
(raise :type :illegal-argument :arg 'x :value x))
(+ x y))
(defn main
[]
;; simple handler
(handler-case :type
(println (func 3 4))
(println (func -5 10))
(handle :illegal-argument
(print-stack-trace *condition*))
(println 3))
;; multiple handlers
(handler-case :type
(println (func 4 1))
(println (func -3 22))
(handle :overflow
(print-stack-trace *condition*))
(handle :illegal-argument
(print-stack-trace *condition*)))
;; nested handlers
(handler-case :type
(handler-case :type
nil
nil
(println 1)
(println 2)
(println 3)
(println (func 8 2))
(println (func -6 17))
;; no handler for :illegal-argument
(handle :overflow
(println "nested")
(print-stack-trace *condition*)))
(println (func 3 4))
(println (func -5 10))
(handle :illegal-argument
(println "outer")
(print-stack-trace *condition*))))
Jump to Line
Something went wrong with that request. Please try again.