Inline previous result in Emacs Lisp
Using Edebug in Emacs enhances debugging, fostering independence in customizing functionalities. The author shares experiences modifying Edebug to display results inline, improving debugging efficiency by reducing code-minibuffer switching.
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The article discusses the importance of using Edebug in Emacs for debugging purposes, emphasizing how it can lead to independence in customizing Emacs functionalities. The author shares personal experiences of using Edebug to understand and modify code behavior. They describe a modification made to the Edebug result display behavior to enhance the debugging process by displaying results inline rather than in the minibuffer. The author explains the process of modifying Edebug functions to achieve this inline display and remove unnecessary text from the displayed message. By advising and patching Edebug functions, specifically edebug-compute-previous-result and edebug-previous-result, the author successfully alters the display behavior to show results inline using the eros package. This customization allows for a more efficient debugging experience by reducing the need to switch between code and the minibuffer.
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4 commentsWith Emacs you truly feel to be in control.
I'm always a touch sad that I don't step debug code more than I do. I remember the glory days of people pushing this in Java with the Eclipse compiler literally made to support incremental compilation. I think it was JRebel that was working to do that at large on other installations.
Fast forward a few years, and I would get into conversations with principal level engineers at amazon that didn't know this was possible. Having the debug agent was literally a default for some teams, and they didn't realize what all that enabled.
What happened? Feels that a lot of old school programmers of any language remember doing this. Too many others think this is some sort of magical world dreamed of by lisp enthusiasts that never actually happened.
(Would love to see numbers challenging any of my soft assertions above.)
If anyone is wondering about Nyan Cat in the "after" screen capture: https://github.com/TeMPOraL/nyan-mode
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