<< 26-01-2025 >>
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01:16:54FromDiscord<firasuke> IIRC, Nim uses `wyhash` as its default hashing algorithm; however, `wyhash` has been succeeded by `rapidhash` (https://github.com/Nicoshev/rapidhash) which provides more throughput and better overall quality (at least according to smhasher). Are there plans to switch from `wyhash` to `rapidhash` (https://github.com/golang/go/issues/67935)?
01:17:02FromDiscord<firasuke> (edit) "(https://github.com/golang/go/issues/67935)?" => "(https://github.com/golang/go/issues/67935 )?"
01:32:16FromDiscord<demotomohiro> In reply to @firasuke "IIRC, Nim uses `wyhash`": iirc, farm hash will became default: https://github.com/nim-lang/Nim/issues/23678
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02:01:45FromDiscord<arkanoid> `chronos` is not compatible with nim 2.2.0?↵I get `/home/jack/.nimble/pkgs2/chronos-4.0.3-ba179f34b0513ebd1615076f07b61e2e217bd228/chronos/config.nim(150, 20) Error: expression cannot be cast to 'ptr SeqHeader'`
02:11:09FromDiscord<arkanoid> also `chronicles` fails to compile. Mh, ground seems less solid than usual
02:58:14FromDiscord<lainlaylie> sent a code paste, see https://play.nim-lang.org/#pasty=hbwBwGzd
02:58:22FromDiscord<lainlaylie> are you using refc or something?
03:11:27FromDiscord<albassort> are tables safe to concurrently read and write to
03:11:39FromDiscord<albassort> 1 thread writes to while others read?
03:14:06FromDiscord<Elegantbeef> No
03:15:54FromDiscord<Elegantbeef> Writing to table can cause it to move where it's at, best case you get an old value, worst case you're reading memory that was overwritten
03:20:30FromDiscord<albassort> In reply to @Elegantbeef "Writing to table can": is there a datastructure in nim which would be good for this?
03:20:41FromDiscord<albassort> doubt it
03:21:08FromDiscord<albassort> a lock would surely be faster than a db query right?
03:21:25FromDiscord<Elegantbeef> Do you mutations have to occur now?
03:21:27FromDiscord<Elegantbeef> your\
03:22:08FromDiscord<albassort> i dont think my mutations would be so critical that they cant wait for a read to finish
03:22:11FromDiscord<Elegantbeef> What you could do is queue them up and have them happen in batch when you're not reading, kinda like a RCU type
03:22:50FromDiscord<Elegantbeef> But instead of deleting when nothing is reading you add
03:22:50FromDiscord<albassort> why not have a write loc and have the reads happen concurrently
03:23:05FromDiscord<Elegantbeef> Constant locking is not very nice
03:23:54FromDiscord<albassort> still probably faster than a db query for every api query to validate the keys
03:24:07FromDiscord<Elegantbeef> I wouldn't know
03:24:49FromDiscord<albassort> database applications are kinda hard to benchmark because the database speed is highly variable
03:24:54FromDiscord<albassort> so idk if i even wanna try
03:27:20FromDiscord<arkanoid> sent a code paste, see https://play.nim-lang.org/#pasty=owtauZiu
03:27:53FromDiscord<Elegantbeef> Did you transfer the processes across the thread barrier?
03:28:41FromDiscord<albassort> the thread-brain barrier only allows codes smaller than 5 nm btw
03:29:02FromDiscord<arkanoid> now the program is much simpler\: just main thread (async), the child processes are all executed via async tools in `asynctools/asyncproc.nim`, but weird things are happening
03:29:09FromDiscord<Elegantbeef> Would be rad if it were true to prevent people from sharing things across the barrier 😄
03:33:43FromDiscord<arkanoid> I have to revert to mutithreading, sigh
03:34:06FromDiscord<Elegantbeef> This is why selectors are rad 😄
03:38:29FromDiscord<arkanoid> My trust into async programming has been hurt again. Why my problems have always to be so I/O limited!
03:38:46FromDiscord<Elegantbeef> IO is a mistake
03:39:01FromDiscord<arkanoid> Haskell to the resque!
03:39:20FromDiscord<Elegantbeef> Nah selectors to the rescue, they don't hide the logic
03:40:27FromDiscord<arkanoid> they do! my problem is purely random. I call same process every 5 seconds. It crash after 3 stdev 2 loops
03:40:48FromDiscord<Elegantbeef> How do selectors hide the logic?
03:43:32FromDiscord<arkanoid> because they seems not fully supported as stated
04:00:58FromDiscord<arkanoid> oh wow is an old time bug https://forum.nim-lang.org/t/5565
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10:40:50FromDiscord<firasuke> Is `execCmd` preferred over `execShellCmd` and what's the difference? IIRC the latter is basically `system()` from `stdlib.h`?
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11:20:08FromDiscord<luteva> Hi! I would like to help the community and port some libs that are written for nim version 1 and do not compile in nim 2 (like import correct db_connector etc.). So if someone has a library that needs some new imports or something like this and do not have the time or desire to change it, just contact me! And if i find the time I (hopefully) can do it for you. 🙂
11:28:48FromDiscord<lainlaylie> In reply to @firasuke "Is `execCmd` preferred over": https://github.com/nim-lang/Nim/blob/version-2-2/lib/pure/os.nim#L401↵https://github.com/nim-lang/Nim/blob/version-2-2/lib/pure/osproc.nim#L1477↵they look pretty similar to me
11:30:51FromDiscord<lainlaylie> i always use startProcess to avoid shell escaping issues
12:30:33FromDiscord<firasuke> In reply to @lainlaylie "i always use startProcess": oh ok, thanks
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17:38:57FromDiscord<code_reaper5477> Hey everyone, new to Nim, wanted to pick up a language that I could possibly contribute libraries for, glad to be here
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18:21:28FromDiscord<reculify> In reply to @code_reaper5477 "Hey everyone, new to": same
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19:33:08FromDiscord<nnsee> welcome!
19:33:11FromDiscord<nnsee> nice to have you here
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20:08:04FromDiscord<luteva> Welcome!
20:09:09FromDiscord<aintea> Anyone know when I should use `func(arg)`, `arg.func`, `arg.func()` ???
20:09:35FromDiscord<aintea> func can be a proc too btw, I'm just askingabout the preferred codestyle in Nim
20:10:55FromDiscord<luteva> Make it well readable i would say 😃
20:11:28FromDiscord<bostonboston> That, whatever is Intuitive, don't make it hard on the reader, each style has its place
20:12:17FromDiscord<Elegantbeef> If the procedure sounds like it operates on the first parameter you do `a.b` otherwise you do `b(a)`
20:12:27FromDiscord<Elegantbeef> `myString.isEmpty()`
20:12:47FromDiscord<aintea> I currently use:↵- `arg.func` when it is a func and returns a value↵- `func(arg, ...)` when it takes more than one argument↵- `arg.func()` if it is a proc
20:13:04FromDiscord<aintea> In reply to @Elegantbeef "If the procedure sounds": oh ok, thanks
20:13:22FromDiscord<Elegantbeef> Don't do it for weird reasons, do it cause it's readable
20:13:36FromDiscord<Elegantbeef> `isNil(x)` is awful
20:13:48FromDiscord<Elegantbeef> `add(a, b)` is also awful
20:14:46FromDiscord<aintea> well, a.add(b) is also awful
20:16:03FromDiscord<aintea> for `x.isNil` I see your point
20:16:13FromDiscord<aintea> but for `add(a, b)` I really don't
20:16:24FromDiscord<bostonboston> sent a code paste, see https://play.nim-lang.org/#pasty=ZNRcQuny
20:16:49FromDiscord<Elegantbeef> `myCollection.add b` is not really awful
20:17:00FromDiscord<aintea> OH
20:17:05FromDiscord<aintea> you mean the add into a collection
20:17:13FromDiscord<aintea> I tought you were talking about the addition
20:17:16FromDiscord<Elegantbeef> Well yea when else do you use `add`
20:17:30FromDiscord<Elegantbeef> No if I was talking about addition I'd use y'know `+`
20:17:35FromDiscord<aintea> I tought you were talking about a custom addition func
20:17:54FromDiscord<aintea> yeah sure, to add into a seq I'll use `s.add(x)`
20:18:18FromDiscord<aintea> Do you guys think some things in the Nim codestyle should change ?
20:18:25FromDiscord<aintea> For example camelCase
20:18:26FromDiscord<Elegantbeef> No
20:18:34FromDiscord<Elegantbeef> No
20:18:55FromDiscord<Elegantbeef> As someone that uses a NA keyboard snake case is hell to write imo
20:19:12FromDiscord<Elegantbeef> Those Rust nuts can keep it
20:19:24FromDiscord<Elegantbeef> I've been writing a small Odin toy and hate every time I have to write it 😄
20:19:41FromDiscord<aintea> also
20:19:49FromDiscord<aintea> Did you guys know Nim converts case styling
20:20:12FromDiscord<aintea> sent a code paste, see https://play.nim-lang.org/#pasty=lQTquLHi
20:20:35FromDiscord<aintea> I wanted to burn everything around me when I learnt this
20:20:37FromDiscord<bostonboston> Yes, don't abuse it
20:22:23FromDiscord<aintea> sent a code paste, see https://play.nim-lang.org/#pasty=xPnnCkOz
20:22:37FromDiscord<Elegantbeef> I've been using Nim for like 5 years
20:22:38FromDiscord<Elegantbeef> If I didn't know that it was style insensitive someone should shoot me
20:23:02FromDiscord<aintea> I come from C, and upper snake case is my standard for constants (even if clearly discouraged in the Nim codestyle)
20:23:13FromDiscord<Elegantbeef> You can use the `--styleChecks` flag or w/e it is
20:23:13FromDiscord<aintea> In reply to @Elegantbeef "If I didn't know": Any last words ? 🔫
20:23:29FromDiscord<Elegantbeef> Ah yes screaming constants for no reason
20:23:33Amun-Raaintea: "don't shoot"?
20:23:50FromDiscord<Elegantbeef> Boo the value that doesn't move is so scary we have to emphasis it
20:24:02FromDiscord<aintea> yes
20:24:09FromDiscord<aintea> constants do no harm, variables do
20:24:10FromDiscord<Elegantbeef> So scary!
20:24:22FromDiscord<Elegantbeef> Right so we should make all variables screaming case
20:24:27FromDiscord<Elegantbeef> That way we know that they're variables
20:24:37FromDiscord<Elegantbeef> Alternatively it really doesnt matter whether something is a variable or constant
20:24:58FromDiscord<Elegantbeef> The compiler will complain if we try to do things wrongly
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20:48:26FromDiscord<arkanoid> how would you ensure that there is only one copy of Nim program running? I'm using flock/shlock external tool, but it would be nice to use native Nim solution instead.
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20:52:44FromDiscord<Elegantbeef> Write a lock file if the file exists the program is running or a previous instanced crashed 😄
20:56:25FromDiscord<arkanoid> sure, thing, but what is a lockfile in this context?
20:56:33FromDiscord<Elegantbeef> Just a file in a path
20:56:44FromDiscord<Elegantbeef> If that file exists you close the instance
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21:01:16FromDiscord<arkanoid> mh, I though there was some kind of write protection on the lockfile
21:01:40FromDiscord<arkanoid> like exclusive open to prevent other programs messing with the lockfile
21:02:03FromDiscord<arkanoid> sent a code paste, see https://play.nim-lang.org/#pasty=GotPtfYQ
21:02:44FromDiscord<Elegantbeef> Well you only delete it from the program that made it
21:03:07FromDiscord<Elegantbeef> Overiding signals and adding an exithook to destroy it
21:07:30FromDiscord<aintea> sent a code paste, see https://play.nim-lang.org/#pasty=vcLICuEt
21:09:40FromDiscord<Elegantbeef> Defects aren't exceptions
21:10:18FromDiscord<Elegantbeef> In a normal program with `--panics:on` as one would want they're not catchable
21:11:11FromDiscord<arkanoid> Defects are exceptions
21:11:12FromDiscord<Elegantbeef> Defects are defects
21:11:15FromDiscord<Elegantbeef> No
21:11:28FromDiscord<Elegantbeef> They're intentionally not meant to be caught, but you can catch them with `--panics:off` which is sadly default
21:11:34FromDiscord<arkanoid> https://nim-lang.org/docs/system.html#Defect
21:12:19FromDiscord<Elegantbeef> > Exceptions that indicate programming bugs inherit from system.Defect (which is a subtype of Exception) and are strictly speaking not catchable as they can also be mapped to an operation that terminates the whole process. If panics are turned into exceptions, these exceptions inherit from Defect.
21:12:28FromDiscord<Elegantbeef> While yes they derive from exceptions they're not considered catchable
21:12:39FromDiscord<Elegantbeef> You can catch them with `--panics:off` but that's a faux pas and you're not supposed to rely on that feature
21:12:58FromDiscord<Elegantbeef> https://nim-lang.org/docs/manual.html#exception-handling-exception-hierarchy
21:13:54FromDiscord<arkanoid> so by default Defects are Exceptions
21:14:33FromDiscord<aintea> sent a code paste, see https://play.nim-lang.org/#pasty=HmpwbtUr
21:14:48FromDiscord<aintea> the compiler still doesn't enforce me to be exhaustive, not even a single warning
21:14:58FromDiscord<Elegantbeef> `raises` also doesn't track defects so ... yea
21:15:14FromDiscord<aintea> now it's not a defect
21:15:20FromDiscord<Elegantbeef> `else:` why would it?
21:15:26FromDiscord<aintea> IOError and ValueError are not at least
21:15:35FromDiscord<aintea> In reply to @Elegantbeef "`else:` why would it?": Because compiler enforces me to
21:15:52FromDiscord<Elegantbeef> You're explicitly stating I don't want exhaustive checking
21:15:53FromDiscord<aintea> It says "bro you haven't made a case statement for every number that exists"
21:16:22FromDiscord<Elegantbeef> What?
21:16:49FromDiscord<Elegantbeef> You went out of your way to add an else branch then are complaining that it's not exhaustive?
21:16:52FromDiscord<Elegantbeef> else makes it exhaustive
21:17:14FromDiscord<aintea> When I say exhaustive I am talking about the exception handling in the main part
21:17:42FromDiscord<Elegantbeef> Well then say that 😄
21:17:54FromDiscord<aintea> I could rewrite the divide function with ifs and the compiler would still not enforce me to handle all exceptions
21:18:07FromDiscord<aintea> In reply to @Elegantbeef "Well then say that": It was clear in my head and I'm a bit tired, sorry for confusion
21:19:20FromDiscord<Elegantbeef> sent a code paste, see https://play.nim-lang.org/#pasty=wAoEwpTP
21:19:20FromDiscord<Elegantbeef> Right cause Nim does not force handling all exceptions unless the proc is annotated `{.raises: [].}`
21:19:20FromDiscord<Elegantbeef> Any body of code that raises an exception is assumed to desire to raise the exceptions
21:19:33FromDiscord<Elegantbeef> You have to state otherwise
21:34:51FromDiscord<haniel.> Good evening, good?↵can anyone help me on my code in nim?
21:40:24FromDiscord<nnsee> In reply to @haniel. "Good evening, good? can": what problem do you have?
21:45:09FromDiscord<haniel.> sent a long message, see https://pasty.ee/FfAkpMvu
21:45:54FromDiscord<haniel.> i cant send images?
21:46:11FromDiscord<Elegantbeef> Heh haniel just got banned on the matrix side 😄
21:46:11FromDiscord<haniel.> sent a long message, see https://pasty.ee/KgpPCEYB
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21:47:08FromDiscord<ElegantBeef> sent a code paste, see https://play.nim-lang.org/#pasty=lLORJkIT
21:47:12FromDiscord<ElegantBeef> Don't do this though
21:47:20FromDiscord<ElegantBeef> You're showing a singleton which is ugh
21:47:33FromDiscord<haniel.> i did this ↵type↵ DAO[E : Entidade] = ref object of Entidade↵ dados: seq[E]
21:48:09FromDiscord<haniel.> In reply to @haniel. "i did this ": because DAO its other class, inherates my class "entidade"
21:48:32FromDiscord<haniel.> In reply to @elegantbeef "You're showing a singleton": college work, i have to code java to nim
21:48:49FromDiscord<ElegantBeef> College is forcing you to convert java to Nim?
21:48:55FromDiscord<haniel.> srry for my english, i am brazilian
21:49:34FromDiscord<haniel.> In reply to @elegantbeef "College is forcing you": "forcing" its a strong word, but ye
21:49:50FromDiscord<ElegantBeef> Interesting Nim in educational environment
21:49:57FromDiscord<haniel.> kkkkkkk
21:50:01FromDiscord<ElegantBeef> Anyway the above works
21:50:19FromDiscord<ElegantBeef> So without an example of it exploding I cannot say anything else
21:50:47FromDiscord<haniel.> actually me and my group chose nim
21:51:02FromDiscord<haniel.> In reply to @elegantbeef "So without an example": lol
21:52:55FromDiscord<haniel.> thanks bro, i will try
21:54:02FromDiscord<haniel.> sent a long message, see https://pasty.ee/JVzODYlR
21:54:58FromDiscord<haniel.> sent a code paste, see https://play.nim-lang.org/#pasty=TshrYcmT
21:58:41FromDiscord<ElegantBeef> Provide full code
21:59:54FromDiscord<haniel.> bro, its 10 modules, i cant provide the full code lol
22:00:38FromDiscord<haniel.> i can send the zip with my code in nim and the code in java
22:01:21FromDiscord<ElegantBeef> You can provide a min repro
22:01:34FromDiscord<haniel.> ok, git?
22:01:39FromDiscord<haniel.> github?
22:02:11FromDiscord<ElegantBeef> Or just a small example of the problem at hand
22:03:43FromDiscord<haniel.> i will up in a repository, and i send you the link of git
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22:08:59FromDiscord<haniel.> ||https://github.com/Carrocho/HELPPLZ||
22:09:03FromDiscord<haniel.> @ElegantBeef
22:11:36FromDiscord<ElegantBeef> ` dao : DAO<Produto>` `<>` is not correct
22:13:18FromDiscord<haniel.> ok, so what i do?
22:14:22FromDiscord<haniel.> i simply just don't know how to proceed
22:16:43FromDiscord<bostonboston> [] for generics
22:19:25Amun-Rawhat i do? read up the docs a little bit
22:30:23FromDiscord<leelikesfries> sent a code paste, see https://play.nim-lang.org/#pasty=kxksCNBe
22:30:34FromDiscord<leelikesfries> i need to know the exact error so i can fix it
22:31:05FromDiscord<leelikesfries> (edit) "https://play.nim-lang.org/#pasty=sXkOGkyT" => "https://play.nim-lang.org/#pasty=ztEmvvYN"
22:53:20FromDiscord<arkanoid> I don't remember how to turn an untyped parameter into a string. I want to echo it. I tried echo "`myarg`" but it prints `myarg`
22:53:37FromDiscord<arkanoid> dammit, chat formatting is messing up my backticks
22:57:03FromDiscord<demotomohiro> https://internet-of-tomohiro.pages.dev/nim/faq.en#macro-how-to-echo-nimnodeqmark
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23:02:44FromDiscord<carrocho> @everyone algum br pra me ajudar em um probleminha de nim?
23:04:20FromDiscord<nnsee> please don't attempt to ping everyone
23:04:46FromDiscord<nnsee> state your problem and people will come and try to help you
23:05:31FromDiscord<arkanoid> if I run `jobThread(configurationJob, config.configurationIntervalS):` the `proc configurationJob` is successfully created, but, the log prints `INFO: 000000010DE89C53 job started`
23:06:21FromDiscord<carrocho> In reply to @nnsee "state your problem and": sorry man, thanks
23:08:18FromDiscord<zumi.dxy> this is not that small of a server 😭
23:09:02FromDiscord<leelikesfries> the nim community must continue to grow
23:10:13FromDiscord<carrocho> so, i am creating a generic object and trying to put as a variable in another one, how do i do that? https://media.discordapp.net/attachments/371759389889003532/1333212423703756860/image.png?ex=67981253&is=6796c0d3&hm=27d40f2c07cbab8d6b512e74073a992cb217ef9566c4cc91921a2c23334cb4cc& https://media.discordapp.net/attachments/371759389889003532/1333212423938899988/image.png?ex=67981253&is=6796c0d3&hm=0ba271fafd558353fd30cf3435f5b57267a13f12
23:11:36FromDiscord<demotomohiro> In reply to @carrocho "so, i am creating": https://nim-lang.org/docs/manual.html#generics
23:13:46FromDiscord<carrocho> In reply to @demotomohiro "https://nim-lang.org/docs/manual.html#generics": I read this, and it only says how to use generic variables like, int/string etc, not objects at all
23:14:36FromDiscord<carrocho> (edit) "variables like," => "variables, like"
23:14:53FromDiscord<carrocho> (edit) "etc, not" => "etc. Not"
23:15:53FromDiscord<demotomohiro> You can also give object types to generics.
23:17:43FromDiscord<arkanoid> I've found the asnwer, it's `astToStr(id)`. demotomohiro you should add it to your macro guide!
23:19:32FromDiscord<demotomohiro> sent a code paste, see https://play.nim-lang.org/#pasty=YLNnweHV
23:22:00FromDiscord<carrocho> sent a code paste, see https://play.nim-lang.org/#pasty=MBHFxnzE
23:24:20FromDiscord<demotomohiro> @arkanoid Thank you, I will add about `astToStr`.
23:27:31FromDiscord<demotomohiro> sent a code paste, see https://play.nim-lang.org/#pasty=YLfNdqgG
23:31:11FromDiscord<carrocho> sent a long message, see https://pasty.ee/eShRhcBe
23:33:26FromDiscord<carrocho> sent a long message, see https://pasty.ee/JCWVPpFi
23:33:54FromDiscord<carrocho> (edit) "https://pasty.ee/zMMDGDyK" => "https://pasty.ee/eSqpCTaV"
23:43:46FromDiscord<demotomohiro> > `dao: DAO[e]`↵You cannot pass the field to generic parameter.↵You can pass the type of field to generic parameter like `dao: DAO[Entidate]`.
23:46:18FromDiscord<carrocho> In reply to @demotomohiro "> `dao: DAO[e]` You": I tried that before https://media.discordapp.net/attachments/371759389889003532/1333221509056954530/image.png?ex=67981ac9&is=6796c949&hm=53b79422e4803117aa44e15496b495ef785b18317166b9fd44b3a06cd6d41bf8& https://media.discordapp.net/attachments/371759389889003532/1333221509451350099/image.png?ex=67981ac9&is=6796c949&hm=66e8c38b6b296f9bd98a435887909588d73346078ff86346eb93cfc1130b9448&
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23:50:02FromDiscord<demotomohiro> sent a code paste, see https://play.nim-lang.org/#pasty=fTaoPVpf
23:50:41*beholders_eye quit (Ping timeout: 248 seconds)
23:56:41FromDiscord<demotomohiro> sent a code paste, see https://play.nim-lang.org/#pasty=FZiWekGw
23:59:40FromDiscord<carrocho> i dont know why, but it worked now, ty. But now I have another problem, how I create a method or proc to return instance like: https://media.discordapp.net/attachments/371759389889003532/1333224871039340627/image.png?ex=67981deb&is=6796cc6b&hm=cf803f3cc01fa6e14db8d06d076047a96cbb31822df148c588c7f40d23d21c82&