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Google Common Lisp style guide

google.github.io Reference Policies & guidelines Software engineering Class of 2024-04 Hall of Fame
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Resurfaced independently across 5 calendar years, with breakout response in 2 of them.

submissions
6
submitters
5
observed span
2016–2025
peak thread · 120 comments
196 pts
latest 20+ return · 2024-04-15
148 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

> You must not use INTERN or UNINTERN at runtime. I.e. you must not read Lisp data at run time, if it contains symbols, because that will call intern. > You should avoid using a list as anything besides a container of elements of like type. Good-bye, code-is-data. I could reduce this guide by a good 30% with "You should avoid using Lisp as anything as Go or Java". But that could be seen as defining a macro, which you…

Thanks to ITA Software (powering Kayak and Orbitz), Google dedicates resources to open-source Common Lisp development. More specifically, to SBCL: > Doug Katzman talked about his work at Google getting SBCL to work with Unix better. For those of you who don’t know, he’s done a lot of work on SBCL over the past couple of years, not only adding a lot of new features to the GC and making it play better with applications which have alien parts to…

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
372

reference only — not used in Hall rules or ranking

Total comments
175

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2016-08-10Google Common Lisp Style Guidesimonpure50
2020-07-07Google Common Lisp style guideFirst breakout · Best threadfanf2196120
2023-08-27Google Common Lisp Style GuideTomte40
2024-02-22Google Common Lisp Style Guideswatson74110
2024-04-15Google Common Lisp Style GuideHall induction · Latest 20+ point returnsusam14855
2025-09-30Google Common Lisp Style Guide (Revision 1.28)swatson741180