<< 01-09-2019 >>
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03:26:29FromDiscord_<Shield> is something wrong with toBin? I keep getting type mismatch and that it expected biggestInt
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04:45:05FromGitter<syrusakbary> Hi everyone!
04:45:19FromGitter<syrusakbary> I think it could be very interesting to add wasm/wasi support for Nim!
04:45:44FromGitter<syrusakbary> Is anyone working on that?
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05:33:45FromGitter<awr1> reccomended you use clang wasm backend
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06:01:45rayman22201@syrusakbary Also see this recent forum thread. Particularly the last post: https://forum.nim-lang.org/t/4049
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07:07:07FromGitter<arnetheduck> typical issue where wasm beats js, and js causes maintenance overhead that adds up: https://github.com/nim-lang/Nim/pull/12022
07:08:47FromGitter<syrusakbary> Thanks!!
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07:09:32FromGitter<syrusakbary> There is also a very good use case on targeting WebAssembly+WASI to create a universal wasm binary, that can be run outside of the browser in any operating system or platform
07:09:38FromGitter<syrusakbary> More info: https://wasmer.io/
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07:10:10FromGitter<syrusakbary> I would love to help on making nim to adopt wasm+wasi so the universal binaries can run with Wasmer!
07:10:27FromGitter<awr1> wasm is becoming the new JVM
07:10:53FromGitter<syrusakbary> Indeed! Exciting times :)
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09:15:59FromGitter<mratsim> @awr1: ⏎ ⏎ > @awr1 ⏎ a matter of which i've been perpetually confused w/r/t nim is whether `string` or `seq[byte]` should be used for binary data, b/c i feel like i've seen both ⏎ ... [https://gitter.im/nim-lang/Nim?at=5d6b8c4f0d4b1f5d88962fc0]
09:16:33FromGitter<mratsim> and use seq\[byte\], alternatively if you have time to kill you can read this RFC: https://github.com/nim-lang/RFCs/issues/32
09:22:20FromGitter<awr1> stdlib should have a function to convert
09:23:05FromGitter<awr1> if `string` is essentially just `distinct seq[byte]`
09:23:50FromGitter<awr1> also i did read that earlier yesterday
09:28:06FromGitter<awr1> in terms of binary data it would also be useful if nim had a more proper slice type, e.g. https://github.com/nim-lang/RFCs/issues/12
09:35:54FromGitter<awr1> speaking of slices, i don't get what `HSlice[T, U]` is useful for
09:37:24FromGitter<awr1> versus `Slice[T]`
09:37:46FromGitter<awr1> why would you want to have the upper and lower bound be disparate types?
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09:59:10lqdev[m]it's pretty useful as a Pair type
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11:06:25ehmrythere is a PR for Nimble support in Nixpkgs - https://github.com/NixOS/nixpkgs/pull/67878
11:11:25FromGitter<mratsim> HSlice was introduce to support BackwardsIndex
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11:30:29enthus1astdoes one has written / aware of a config file parser like apache or nginx?
11:31:52enthus1astmaybe the yaml module would be a good fit but it seems a little broken lately
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12:04:22TongirHey folks, anybody have any preferable libraries for creating html templates that works with any builds >= 0.20
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14:05:27federico3any voxel rendering engine for Nim?
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14:18:14FromDiscord_<exelotl> federico3: I guess writing bindings for stb_voxel_render could be an option?
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14:23:01FromDiscord_<exelotl> still leaves a lot of manual work to be done I guess
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14:48:58disrupteki hate the idea of allowing functions to return `typeof(nil)` -- just one more dubious return value to worry about, and it breaks really simple code.
14:49:43disruptekwhat is the reason for supporting this? it was never an issue before, and a tighter spec that hurts (apparently only one developer) seems preferable.
14:49:47lqdev[m]wait, what
14:49:54lqdev[m]typeof(nil) even works!???
14:50:08disruptekwell, as of yesterday.
14:50:16disruptekhttps://github.com/nim-lang/Nim/pull/12100
14:50:31lqdev[m]damn.
14:50:59disrupteki'm not even sure $typeof(nil) == "typeof(nil)" makes sense. maybe that should be the result of `repr`, but probably not $. and it's clearly very breaking.
14:51:38lqdev[m]but seriously, what is the point of this
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14:51:59lqdev[m]even C doesn't have an abomination like this.
14:52:01lqdev[m]even C.
14:52:26disrupteki don't know. it seems like a mistake every which way i look at it. i think it's just about wanting to determine the return type of a void proc... or something.
14:53:40lqdev[m]by me, `nil` is understood to be just null pointer to `ref T`, meaning it does not initially have a type at all
14:53:56disruptekdoes this mean you can pass a void proc to a proc that takes a ref as an argument?
14:54:11disruptekyeah, it should be special and very limited in its use.
14:54:43lqdev[m]I'd think nil is only allowed in certain cases where its specialization can be inferred (eg. proc params, variables with explicit type)
14:55:15lqdev[m]s/explicit/known/
14:55:18Zevvbut what is the intention of this pr 12100 then, what is the *why*?
14:55:38lqdev[m]↑ same here
14:56:06lqdev[m]the author doesn't really highlight it in the PR itself, only the changes
14:56:17disruptekthis is just broken. you really can pass a void proc as a ref.
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14:58:37disrupteki really hope Araq just didn't take a very close look at this.
14:59:58disruptekit doesn't even compile some very simple stuff.
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15:02:10disruptekthis doesn't compile: proc foo(): typeof(nil) = discard; echo $foo()
15:02:49disruptekthis doesn't compile, but due to a stdlib error in tables: import json; proc foo(): typeof(nil) = discard; echo $foo()
15:03:15Zevvbut what *is* supposed to compile with this then? what is it trying to do?
15:05:15disruptekjust this: proc foo(): typeof(nil) = discard; echo typeof(foo)
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15:07:42disruptekyou know what's really funny?
15:08:02Zevvno clue?
15:08:09disruptekthat program doesn't even produce output.
15:08:22disrupteknot even a newline.
15:08:59disruptekthis just proves my age-old mantra:
15:09:07disruptekwrite as much code as you want while stoned,
15:09:10disruptekbut only commit sober.
15:10:41Zevvits interpreted as http://ix.io/1TZw
15:11:19disruptekoh, you're right. 🙄
15:11:28Zevvits funny. I did a *tiny* PR some time ago for insert(s: string, c: char, offset: int)
15:11:45Zevvit got completely bikeshedded away by a lot of people because everone understands what its supposed to do
15:12:01disrupteki remember that.
15:12:04Zevvfirst I had to rewrite it 5 times, then it didn't get in :)
15:12:29Zevvand then something cryptic as this: everybody just shrugs like "Wel, I dunno so its probably ok"
15:13:03disrupteki spent an inordinate amount of time on literate scf, but it's in limbo because it doesn't belong in the compiler.
15:13:28disruptekwhich i don't disagree with, but i think i added only one word to the compiler source.
15:13:43Zevvwhat's scf?
15:13:47disrupteksource code filter.
15:13:57Zevvah right.
15:14:17Zevvyeah well. I just spend my time on my own code and only fix bugs that bite me personally in nim :/
15:14:42ZevvI have to take peoples crap for work 5 days a week, so I don't do these things in my free time anymore
15:14:43disrupteklike most of us. 😉
15:14:50Zevvlike most of us :)
15:15:22Zevvimagine guys like dom96, having spent *so* much time
15:15:26Zevvincredible
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15:15:50disrupteki did literate because i think it's a good contribution. i have plans for it, but it seems like a good little gift that could get in easily.
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15:15:59Zevvwhere's your PR?
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15:16:55disruptekhttps://github.com/nim-lang/Nim/pull/11848
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15:18:00Zevvneed to do some cooking and stuff, but will go throught that. cool!
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15:27:29disruptekthis is neat: https://github.com/lumen/lumen -- wasm backend for BEAM
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16:10:55federico3exelotl: thanks
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16:33:39lqdev[m]do you think that 256 fields is a good limit on the amount of object fields? I can't imagine anyone going above that.
16:35:25FromDiscord_<Shield> is that a limitation in C? why would Nim have it?
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16:45:11lqdev[m]I'm asking because I'm writing a VM
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17:30:25Zevvlqdev[m]: i dont think ive ever seen human written code with so many fields, but with generated code you never know what people will make up one day :)
17:31:02lqdev[m]I mean, I don't think anyone will ever generate code with rod as a target ;)
17:31:29lqdev[m]it's only supposed to be a small language after all, written specifically for use with Nim so the audience shouldn't be that big.
17:39:16FromGitter<mratsim> even 32-64 sounds reasonable
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17:51:54disruptekseems like a strange thing to use to limit the audience.
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18:10:40Zevvlqdev[m]: what causes the limitation then? Your word size? can't you make that configuratble so you can change it later without too much hassle?
18:12:23lqdev[m]the limitation is caused by my bytecode representation, it's roughly `[opcPushF|opcPopF] [field ID]`, where each pair of brackets represents 1 byte
18:13:04lqdev[m]I can increase the limit by changing the second byte to be two bytes making a 16-bit value, but I think 65536 fields is really overkill
18:19:09ZevvWell if you ever need it you can add [opcPushF2|opcPopF2] [Field ID16]
18:21:53Zevvoh that would be [opcPushF2|opcPopF2] [Field ID High] [Fild ID Low] of course, with [bytes]
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18:44:34lqdev[m]I'll see if anyone ever hits that limitation, I highly doubt that, though.
18:45:24lqdev[m]Nim objects are going to be bound in a hack-ish way where all the public fields of an object are transformed into rod getters and setters
18:45:35lqdev[m]so it's not gonna be a problem there
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18:47:01lqdev[m]distuptek: I don't limit the audience in any way, I'm just pointing out the facts (Nim's userbase isn't as big as most of other languages, and rod is probably never going to be used by many people)
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19:27:49shashlick@lqdev wish you had made rod look more like Nim
19:28:59lqdev[m]doesn't it already look like Nim enough?
19:31:30shashlick{}
19:31:49lqdev[m]aah
19:31:58lqdev[m]it's mainly because I wanted a simple parser
19:32:02shashlick->
19:32:29lqdev[m]-> is a change I introduced because it looked better with braces
19:34:10shashlickAny reason why you created a new lang instead of enhancing nimscript
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19:50:43Zevvbecause he can!
20:03:19Zevvis there a stdlib function for finding the position of an item in a seq? Something like `indexof(@["one","two","three"], "two")` returning `1`?
20:05:16lqdev[m]Zevv: yes, see `system.find`
20:06:11lqdev[m]shashlick: because I don't want to pull in the source code of the entire Nim compiler into my codebase
20:06:22lqdev[m]I want something small and simple
20:06:27lqdev[m]and as Zevv said, because I can.
20:07:09Zevvlqdev[m]: thanks. I was expecting that in sequtils
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20:38:59shashlickWell so the question is whether you need the full compiler or just the parser and vm
20:39:40shashlickAnd if not, can we get it to that point - getting the vm working at runtime will be awesome
20:40:16disruptekthat would be a big deal.
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21:03:02FromGitter<mratsim> But it does?
21:03:16FromGitter<mratsim> isn't there a `import compiler/eval` or something to do that
21:04:52shashlickMeh you are right, that's what nimble did with nimscript
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21:05:27shashlickBut it did pull in a lot of code and took a while to compile
21:06:42shashlickPerhaps if it could be reduced but i don't know
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22:01:29FromGitter<awr1> @lqdev[m] i've seen objects with a large amount of fields in certain arenas
22:01:35FromGitter<awr1> also @zevv
22:01:45FromGitter<awr1> for instance as procedure tables
22:01:47FromGitter<awr1> https://github.com/zeux/volk/blob/master/volk.h#L97
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22:20:04Zevvtrue, true
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23:14:59luis_hi all, how is the easiest way of printing a float only up to the second decimal?
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23:45:14shashlickhttps://nim-lang.org/docs/strutils.html#formatFloat%2Cfloat%2CFloatFormatMode%2Crange%5B%5D%2CChar
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