Interesting approach to emulating sum types in Go: define an interface with a placeholder function on all of the relevant types! https://www.jerf.org/iri/post/2917
Includes an example with an AST type. You can even stop people extending your interface by making your placeholder private.
miniblog.
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An interesting feature of the Grok TiddlyWiki interface: it has the sidebar on the right.
I see a sidebar on the left way more often, but arguably it makes more sense on the right for a wiki? The content is effectively more prominent.
Optimising GHC, implementing assembly pretty-printers, and the tradeoffs of implementing against an interface: https://www.tweag.io/blog/2022-12-22-making-ghc-faster-at-emitting-code/
I certainly see the appeal of ChatGPT as a conversational interface for knowledge questions, but it's wrong often enough that I can't trust it.
Prompt: What does :extend do to an Emacs font face?
This is wrong (it's confused with :inherit) and it's hallucinated a version constraint.
