<< 05-03-2025 >>
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03:13:39FromDiscord<m4ul3r> Is there a way to make directories withouth calling `execCmdEx(&"mkdir -p {targetDir}")` ?
03:15:35FromDiscord<leorize> https://nim-lang.org/docs/dirs.html#createDir%2CPath↵(@m4ul3r)
03:17:49FromDiscord<m4ul3r> In reply to @leorize "https://nim-lang.org/docs/dirs.html#createDir%2CPat": hmm yeah that works, must have gotten skill diffed the first time i tried it and named it a dir that exists. thanks
04:30:07FromDiscord<janakali> In reply to @aintea "no idea what that": According to wikipedia it's some functionial thing where you turn expressions inside out by having argument that is a function, that will be called with result of the function. My head hurts just reading this, how do people come up with this stuff? 🙂
04:31:10FromDiscord<janakali> sent a code paste, see https://play.nim-lang.org/#pasty=NKHBPyyT
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06:52:19FromDiscord<nnsee> the nimskull nim fork has a pretty good infographic explaining how cps works https://github.com/nim-works/cps?tab=readme-ov-file#what-is-cps
06:52:43FromDiscord<Elegantbeef> Hey that's not the nimskull fork that's just y'know CPS
06:53:41FromDiscord<nnsee> i thought their implementation did some magic that made it not regular cps
06:53:56FromDiscord<Elegantbeef> I mean that's just the repository for the Nimcps package
06:53:59FromDiscord<nnsee> also I literally just woke up 2 minutes ago so maybe my brain hasn't woken up yet
06:54:01FromDiscord<nnsee> oh
06:54:02FromDiscord<nnsee> yes
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07:54:46FromDiscord<pmunch> sent a code paste, see https://play.nim-lang.org/#pasty=uFhWrmfw
07:56:05FromDiscord<.tokyovigilante> Can I import something like this struct from the xdg-shell Wayland etension in nim easily? It's defined in a compiled C file, but only forward declared in the public header as `extern const struct wl_interface xdg_wm_base_interface;` I need to pass its address to the protocol binding call
08:03:43FromDiscord<.tokyovigilante> hmmm, compiler seems to be happy with `let xdg_wm_base_interface {.importc, nodecl.}: struct_wl_interface`
08:04:11FromDiscord<.tokyovigilante> sent a code paste, see https://play.nim-lang.org/#pasty=TFBAactn
08:09:28FromDiscord<demotomohiro> sent a code paste, see https://play.nim-lang.org/#pasty=IFkLlQZe
08:09:48FromDiscord<demotomohiro> So use `header` pragma instead of `nodecl`.
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08:11:05FromDiscord<.tokyovigilante> Thanks, I had just cheated and looked at what Futhark did for the system wayland headers, and the core interface structs are just using` .importc`, and it works for me now just dropping `.nodecl.`
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10:27:21FromDiscord<nocturn9x> sent a code paste, see https://play.nim-lang.org/#pasty=HqPOLgZQ
10:27:42FromDiscord<nocturn9x> `var` parameters are not valid return types
10:28:43FromDiscord<nocturn9x> I know there's `{.bycopy.}` and `{.byref.}` but I'm not sure if they apply here
10:29:08FromDiscord<nocturn9x> sent a code paste, see https://play.nim-lang.org/#pasty=zLxCJuyC
10:29:35FromDiscord<nocturn9x> the object size is on the order of ~340 bytes, and I generate many millions of them per second, so copying them around is not an option
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11:07:29Amun-RaI finally found the issue causing "Error: internal error: genTypeInfo(tyNil)" on JS target - I have const object with function members and I haven't had "nimcall" pragma in among pragmas defining function type
11:07:32Amun-Rahttps://play.nim-lang.org/#pasty=gWmPCeWD
11:07:53Amun-Ras/in//
11:08:52Amun-Rawhat's weird it works fine on 2.0.x
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12:46:44FromDiscord<nocturn9x> sent a code paste, see https://play.nim-lang.org/#pasty=cFzMmHRl
12:46:45FromDiscord<nocturn9x> very cool™️
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16:28:37FromDiscord<r_pink47> I am trying to load in Json into Nim as a structure made of Tables and Sequences. I was using `std/json` till now, but I really don't want to deal with nodes. If this is stupid, please tell me so, and if not, help is welcome.
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16:35:24FromDiscord<solitudesf> you can use jsony or nim-json-serialization to parse directly into object. or you can use jsonutils.jsonTo, to convert JsonNode into your type, if you don't want external deps.
17:04:27FromDiscord<nervecenter> Yeah, `JsonNode` is a thing precisely because JSON represents a dynamic heterogenous hash map. There's no way to do that in Nim without nodes of a variant type. Deserializing them into a set object for final use is the best approach if the goal of your program is clear.
17:04:42FromDiscord<nervecenter> (edit) "Yeah, `JsonNode` is a thing precisely because JSON represents a dynamic heterogenous hash map. There's no way to do that in Nim ... without" added "(which is statically typed)"
17:04:55FromDiscord<nervecenter> (edit) "Yeah, `JsonNode` is a thing precisely because JSON represents a dynamic heterogenous hash map. There's no way to do that in Nim (which is statically typed) without nodes of a variant type. Deserializing them into a set object ... for" added "type"
17:06:04FromDiscord<nervecenter> (edit) "Yeah, `JsonNode` is a thing precisely because JSON represents a dynamic heterogenous hash map. There's no way to do that in Nim (which is statically typed) without nodes of a variant type. Deserializing them into a ... settypes" added "hierarchy of" | "type" => "types"
17:06:13FromDiscord<nervecenter> (edit) removed "set"
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18:15:37FromDiscord<nocturn9x> In reply to @r_pink47 "I am trying to": jsony ftw
18:15:39FromDiscord<nocturn9x> it's lovely
18:17:23FromDiscord<r_pink47> Ok, I am going to give Jsony a try. I have now also determined that Nim isn't the perfect language for me, but still the best I found.
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18:26:31FromDiscord<djazz> second time this week nimsuggest/nim vscode extension takes down my pc 🙃 out of memory
18:28:17FromDiscord<kiloneie> In reply to @djazz "second time this week": It's either that or github desktop for me, i don't know whats happening, but nothing responds for forever
18:28:46FromDiscord<djazz> so many nimsuggest processes, fills up memory
18:28:47FromDiscord<kiloneie> HELP PLS:↵How do i hash frames ? https://media.discordapp.net/attachments/371759389889003532/1346912342176305172/image.png?ex=67c9e95e&is=67c897de&hm=27670e1ba1aa2c0cada9a2b1af5ecf7713e8fcbf751dfe06c41b078e7e5e1653&
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18:45:42FromDiscord<kiloneie> sent a long message, see https://pasty.ee/lrONpCxl
18:47:03FromDiscord<kiloneie> https://media.discordapp.net/attachments/371759389889003532/1346916940085465189/image.png?ex=67c9eda7&is=67c89c27&hm=18e8fa7c0245deab3f75965e4c81e42a309ffaf2c457c12d90a8cd76ec8b5c25&
18:55:21FromDiscord<leorize> I'm not sure if hashing everything is what you want
18:56:10FromDiscord<Elegantbeef> Your hash function needs to behave like your `==`
18:56:25FromDiscord<leorize> think of hashing as a way to create a generalized identity for the object
18:56:43FromDiscord<leorize> do you actually distinguish your objects by what inside?
18:57:45FromDiscord<Elegantbeef> @nocturn9x I'd suggest making `=copy` and `=dup` errors then you can make a `clone` or w/e to actually copy it when you want
18:58:00FromDiscord<nocturn9x> oh
18:58:01FromDiscord<Elegantbeef> You also want a `lent` return value
18:58:04FromDiscord<nocturn9x> actually not a bad idea
18:58:10FromDiscord<nocturn9x> In reply to @Elegantbeef "You also want a": uu
18:58:12FromDiscord<nocturn9x> I will try this
18:58:19FromDiscord<nocturn9x> maybe it's the secret to speed I've been missing
18:58:27FromDiscord<nocturn9x> but doesn't that apply to refs only
18:58:36FromDiscord<Elegantbeef> Nope
18:58:39FromDiscord<nocturn9x> I see
18:58:51FromDiscord<Elegantbeef> `lent T` is a immutable `ptr T` under the hood
18:58:59FromDiscord<Elegantbeef> It works just like how you can have a proc return `var T`
18:59:20FromDiscord<Elegantbeef> With the hooks disabled it'll be required
18:59:48FromDiscord<leorize> if it's a search problem, it's worth optimizing your structure to speed that process up
19:00:25FromDiscord<kiloneie> Hmm maybe i am trying to a dumb thing here, i didn't ask myself if i actually need this part... le me see...
19:00:34FromDiscord<leorize> your object is gigantic, so frequent movement/copy isn't gonna be fast
19:00:49FromDiscord<Elegantbeef> For the future there is a `fields` iterator 😄
19:01:20FromDiscord<Elegantbeef> Oh yea it's massive without any pointer indirection
19:01:27FromDiscord<Elegantbeef> Cannot really move that
19:02:15FromDiscord<Elegantbeef> I also wonder if the field order could be moved to make it a bit smaller
19:08:53FromDiscord<nocturn9x> sent a code paste, see https://play.nim-lang.org/#pasty=DxnbdjCc
19:08:57FromDiscord<nocturn9x> this just errors out immediately
19:09:01FromDiscord<Elegantbeef> Ni
19:09:03FromDiscord<nocturn9x> how would I do it exactly?
19:09:22FromDiscord<Elegantbeef> sent a code paste, see https://play.nim-lang.org/#pasty=sJiVCbaQ
19:09:47FromDiscord<Elegantbeef> Error/fatal pragmas in bodies are there to stop compilation at the point they're hit
19:09:53FromDiscord<nocturn9x> `/home/nocturn9x/heimdall/src/heimdall/movegen.nim(804, 38) Error: '=copy' is not available for type <Position>; requires a copy because it's not the last read of 'board.positions[1]'; routine: basicTests`
19:09:58FromDiscord<nocturn9x> now I know when copies occur
19:09:59FromDiscord<nocturn9x> neat!
19:10:00FromDiscord<Elegantbeef> Error pragma on a procedure causes it to error on call(good for deprications)
19:10:10FromDiscord<nocturn9x> In reply to @Elegantbeef "Error pragma on a": got it
19:10:18FromDiscord<Elegantbeef> deprecation even 😄
19:10:34FromDiscord<Elegantbeef> Though there is also a deprecate pragma if memory serves
19:11:24FromDiscord<nocturn9x> okay so
19:11:32FromDiscord<nocturn9x> if I did want to implement `clone()`
19:11:34FromDiscord<nocturn9x> how would I do it
19:11:54FromDiscord<nocturn9x> sent a code paste, see https://play.nim-lang.org/#pasty=hrnQhBbG
19:12:32FromDiscord<Elegantbeef> sent a code paste, see https://play.nim-lang.org/#pasty=dZsuTqCf
19:13:20FromDiscord<nocturn9x> sent a code paste, see https://play.nim-lang.org/#pasty=QvpZUzOX
19:13:22FromDiscord<nocturn9x> this is the object
19:13:28FromDiscord<nocturn9x> `Bitboard` is just a `distinct uint64`
19:13:32FromDiscord<nocturn9x> `Piece` is a simple `object`
19:13:34FromDiscord<Elegantbeef> Right are there any references?
19:13:38FromDiscord<nocturn9x> nopes
19:13:49FromDiscord<Elegantbeef> Then you're probably fine to do `copyMem` or the above
19:13:54FromDiscord<nocturn9x> okok
19:14:10FromDiscord<Elegantbeef> Why is bitboard not `set[0..63]`?
19:19:46FromDiscord<nocturn9x> because I need them to be integers
19:19:53FromDiscord<nocturn9x> it could be, ig, but it wouldn't be any faster
19:20:23FromDiscord<nocturn9x> it's basically a bitset anyway
19:20:28FromDiscord<Elegantbeef> Didn't realise you needed the numeric property of it
19:23:15FromDiscord<nocturn9x> yep
19:23:29FromDiscord<nocturn9x> I treat it as a set in 99% of cases
19:23:40FromDiscord<nocturn9x> but there's a few edge cases where I need to do like exclusion using XORs
19:23:43FromDiscord<nocturn9x> which is really fast
19:23:44FromDiscord<nocturn9x> so yeah
19:24:16FromDiscord<Elegantbeef> The bitset operations would be the same
19:24:22FromDiscord<Elegantbeef> But carry on anyway
19:26:26FromDiscord<nocturn9x> In reply to @Elegantbeef "The bitset operations would": hmm probably
19:26:32FromDiscord<nocturn9x> but it already works and is pretty elegant so 🤷
19:41:52FromDiscord<kiloneie> I want set functionality(probably dedup) and auto ordering. Maybe i am trying to do too much here... i don't know, but i have no clue on how to hash a container, everything else i have done b4... https://media.discordapp.net/attachments/371759389889003532/1346930734887211018/image.png?ex=67c9fa7f&is=67c8a8ff&hm=22664ea9d03ee8071cc0f33e27d271f900584122d6f19b1b7e21d56873b62763&
19:45:00FromDiscord<Elegantbeef> I mean what is `Image`?
19:46:36FromDiscord<Elegantbeef> Oh wait, this is different
19:46:40FromDiscord<Elegantbeef> What is `Object`
19:49:33FromDiscord<kiloneie> https://media.discordapp.net/attachments/371759389889003532/1346932667408715878/image.png?ex=67c9fc4c&is=67c8aacc&hm=2da73cf6f8e17220b15fb3b82eaa33d6c1adeccf4bb495ccfdafb4d4190042de&
19:50:36FromDiscord<Elegantbeef> So your hash should just `hash(cast[uint](obj))` or y'know `-d:nimPreviewHashRef`
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19:54:29FromDiscord<kiloneie> So this would only hash the front of that instead of all the data inside ?
19:56:11FromDiscord<Elegantbeef> It hashes the pointer so it matches `==`
19:56:20FromDiscord<kiloneie> omg...
19:56:53FromDiscord<kiloneie> https://kiloneie.github.io/Nim%20for%20Beginners/4%20hashSets,%20more%20on%20hashTables%20and%20Hashing/hashSetsMoreOnHashTablesAndHashing.html↵↵https://kiloneie.github.io/Extra%20Content/extraMakingFakeTable.html
19:57:09FromDiscord<kiloneie> That's what i get for skimming the crab out of my own tutorial
19:59:55FromDiscord<kiloneie> imma bury myself in peanuts now
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