A Framework for Classifying Programming Exceptions: Fatal, Boneheaded, Vexing, and Exogenous
By
CGamesPlay
Lightly toasted, lightly seasoned, mostly correct.
Summary
This article presents a framework for classifying exceptions in programming into four categories: fatal exceptions (unpreventable system failures like out of memory), boneheaded exceptions (programmer errors that should be prevented), vexing exceptions (design flaws where methods throw exceptions in normal scenarios), and exogenous exceptions (external factors beyond program control). The author argues that understanding these categories helps developers implement more effective error handling strategies.
Key quotes
· 5 pulledWriting good error handling code is hard in any language, whether you have exception handling or not.
Fatal exceptions are not your fault, you cannot prevent them, and you cannot sensibly clean up from them.
Boneheaded exceptions are your own darn fault, you could have prevented them and therefore they are bugs in your code.
Vexing exceptions are the result of unfortunate design decisions.
Exogenous exceptions appear to be somewhat like boneheaded exceptions except that they are not the result of a bug.
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