PragPub 2009-07: Issue #1 by The Pragmatic Bookshelf

Author:The Pragmatic Bookshelf
Language: eng
Format: epub, mobi
Tags: PragPub—Monthly Magazine
Publisher: The Pragmatic Bookshelf, LLC
Published: 2009-07-01T04:00:00+00:00

When Things Go Wrong

Clojure’s Exceptional Handling of Exceptions

by Stuart Halloway

Stuart wrote the book on Clojure, and here he reveals one of its strengths: the error-kit Condition system, which gives you greater control and flexibility than traditional exception handling.

If you don’t know about conditions, you should. Conditions are basically exception handling, but with greater flexibility. Many Lisps feature a condition system, and Clojure is no exception (pun inflicted by editor). Clojure’s condition system is called error-kit. In this article, you will learn how to use error-kit, and why you will prefer it to plain old exception handling.

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