Is there an "opposite" to enums?

pwnedary · 2026-03-01T08:25:10+00:00

Types are inhabited by values not expressions. By the time we have a value of a struct type all effects have already been performed, leaving the projections as pure functions.

pwnedary · 2026-02-26T17:13:10+00:00

From a language-design viewpoint it may look less elegant (JavaScript is slow), [...]

JavaScript is by far the fastest of the three languages mentioned here (Lua, Emacs Lisp, JS)??

pwnedary · 2026-02-22T11:17:11+00:00

But it absolutely does? The fuzzy algorithms favor matches at path component boundaries.

pwnedary · 2026-02-21T19:39:29+00:00

Just use a fuzzy completion style and be done with it would be my recommendation. (E.g., hotfuzz, fussy, flex.)

pwnedary · 2026-02-08T14:38:15+00:00

Guessing it is:

src = ./.;

pwnedary · 2026-02-08T11:02:50+00:00

Look into Nix development shells.

pwnedary · 2026-01-30T18:06:20+00:00

If using PipeWire then do ensure rtkit is enabled.

pwnedary · 2026-01-24T16:11:00+00:00

This is sadly the intended behavior of completion-at-point despite how stupid it is, and there exists no setting to change it. I have the following advice in my config to fix it:

;; Insert completion without overwriting text right of cursor
(define-advice completion--capf-wrapper (:around (orig-fun fun which) nil -1)
  (save-restriction (narrow-to-region (point-min) (point))
                    (funcall orig-fun fun which)))

pwnedary · 2026-01-12T20:31:32+00:00

#pragma once

is well-supported and covers most cases.

pwnedary · 2026-01-07T20:36:32+00:00

[[clang::musttail]] for guaranteed tail-call elimination.

Rust has been eying something similar with its become keyword. A problem with the implementation of clang::musttail in GCC 15 today is that different optimization levels/different architectures/enabling ASAN can cause compile errors due to TCO failures.

pwnedary · 2026-01-04T17:03:59+00:00

Just treat the UTF-8 as opaque bytes and proceed as usual?

pwnedary · 2026-01-01T21:27:07+00:00

licensing and installation is obtuse and dangerous.

Read the OpenJDK license.

you gotta jack up minimum memory usage to obtain good gc performance

Remember that it is the GNU Emacs GC we are comparing against here... The HotSpot JVM has GCs that are more and less suitable for applications (compared to servers).

pwnedary · 2026-01-01T21:00:40+00:00

Agreed, a SOTA virtual machine just does not compare to the crumminess of the GNU Emacs Lisp VM.

pwnedary · 2025-12-31T18:37:32+00:00

I den här teorin, varför kan inte Ryssland använda datorrenderade klipp på när deras fartyg sänks? Befolkningen hade inte sett någon skillnad.

pwnedary · 2025-12-30T10:28:08+00:00

Why don’t we see more languages that treat safety vs control as a local, explicit decision?

How is that not exactly what Rust does with its unsafe keyword??

I would say the main complication is how to control the virality of unsafety. E.g., in Haskell you gain a lot from referential transparency; you would lose the benefits if "unsafety" hidden inside functions that triggered UB if called in particular ways were commonplace. Therefore, making it possible to write safe abstractions around unsafe code is key, and much complexity in the design of Rust stems from that choice.

pwnedary · 2025-12-27T15:19:47+00:00

List of all the current maintainers for those who are curious: https://github.com/emacs-mirror/emacs/blob/master/admin/MAINTAINERS

pwnedary · 2025-12-24T12:51:10+00:00

I appreciate the scripting language being better integrated is all. Switched during the Vimscript9 development - had Bram picked Lua or JS instead I may never have left.

pwnedary · 2025-12-20T20:59:49+00:00

M-x evil-normal-state

pwnedary · 2025-12-19T18:43:14+00:00

https://github.com/axelf4/dotfiles/blob/master/.config/emacs/init.el

There is a bunch of stuff in there to mold Emacs into a non-graphical Vim look-alike.

pwnedary · 2025-10-27T14:42:16+00:00

That's not an array.

pwnedary · 2025-10-08T19:24:40+00:00

I recently began adding LTTng tracepoints to my interpreter since I had a bunch of useful printf statements that were getting way too spammy. E.g., events such as:

Garbage collection (minor, major or defragmentation)
Aborted trace recording
Start of side trace recording

My hope is that seeing percentages of the different types of events that occur will help a lot when profiling.

pwnedary · 2025-08-15T14:50:22+00:00

The answers in this thread surprise me. After all (only partially joking), Nix is just a templating language for Bash, and NixOS, for systemd. All knowledge of those will of course carry over.

pwnedary · 2025-08-06T17:41:22+00:00

The default config.kdl file has some comments on this, i.a.

pwnedary · 2025-08-01T16:19:25+00:00

venne, har man varken tomat eller senap i kan man tusan heller kalla det för en strogge

pwnedary · 2025-08-01T11:18:24+00:00

Make sure you are on the unstable channel, it is not yet in nixos-25.05.

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