| 00:15:02 | FromGitter | <raydf> Hello anyone with experience on reusing nim code for an ios objective c app? |
| 00:23:46 | PMunch | raydf, I've used Nim with SDL to write a cross platform thing between Android, iOS, and PC |
| 00:23:56 | PMunch | Works pretty well :) |
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| 00:25:03 | FromGitter | <raydf> i'm looking for info to generate a static lib and generate the header files for using it with swift |
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| 00:28:56 | FromGitter | <raydf> i'm worried about gc usage |
| 00:29:29 | FromGitter | <raydf> @PMunch, do you have any repo or code sample? |
| 00:30:05 | PMunch | https://github.com/PMunch/nim-sdl-template |
| 00:30:32 | PMunch | Credits to yglukhov |
| 00:31:03 | FromGitter | <raydf> thanks |
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| 01:51:29 | demi- | search is failing me, what is the module that is used to make DSLs in nim? |
| 01:52:17 | stisa | demi- https://nim-lang.org/docs/macros.html I guess? |
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| 01:58:24 | demi- | but that is for nim's ast, what if i want to have my own? |
| 02:01:36 | stisa | I don't think there's a module for that, yet. |
| 02:04:52 | stisa | I guess you could use variant type to model the ast though, so https://github.com/andreaferretti/patty might be helpful |
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| 02:46:16 | FromGitter | <barcharcraz> where did vccexe.nim get to in the source tree? |
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| 03:39:03 | zachcarter | can anyone explain what I’m supposed to do with - https://nim-lang.org/docs/events.html#EventArgs and this module? |
| 03:39:30 | zachcarter | do I have to make a custom object extending from that object or something? |
| 03:46:08 | zachcarter | nm I got it working |
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| 05:41:43 | FromGitter | <Varriount> zachcarter: How are things going? |
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| 06:11:37 | libman | "Rust's language ergonomics initiative" => "Python and Nim are good examples to learn from ;)" - https://news.ycombinator.com/item?id=13785277 |
| 06:20:11 | FromGitter | <Varriount> libman: Upvoted |
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| 07:15:33 | cheatfate | barcarcraz: tools/vccenv/vccexe.nim |
| 07:15:44 | cheatfate | sorry barcharcraz |
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| 08:21:01 | Salewski | proc main = |
| 08:21:07 | Salewski | var s = @[1,2,3,4] |
| 08:21:17 | Salewski | var a = "1234" |
| 08:21:25 | Araq | the tension is building up... |
| 08:21:26 | Salewski | let h = s; let k = a |
| 08:21:37 | Salewski | s.setLen(0); a.setLen(0) |
| 08:21:44 | Salewski | echo h.len; echo k.len |
| 08:21:55 | Salewski | main() # output is 0, 0 # is that result really clear from manual? |
| 08:21:58 | Salewski | done |
| 08:22:23 | Araq | no, it's quite a gotcha with an unclear solution |
| 08:22:40 | Araq | suggestions are welcome |
| 08:23:01 | Araq | 'let' means immutable binding and as you've shown it should produce a copy |
| 08:23:08 | Araq | for performance reasons it doesn't |
| 08:23:52 | Salewski | It was not too surprising for me, but not really expected. So that behaviour should be mentioned somewhere. |
| 08:24:30 | Araq | well I don't want to document bugs. |
| 08:25:01 | Araq | I think we need to bite the bullet and produce a copy here and have an optimizer that tries to optimize it away |
| 08:25:21 | Araq | it's rather hard to detect though |
| 08:26:14 | Salewski | I think manual or tutorial says that = assignmnt operator has copy semantics for seq and string, so one may have wrong expectations. |
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| 08:32:43 | Araq | well the spec is clear about this, it's a codegen bug. |
| 08:32:53 | Araq | or rather a totally unsound optimization |
| 08:33:00 | Araq | that I've come to rely on... :-) |
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| 08:59:58 | FromGitter | <Varriount> Well, either 'let' needs to make a copy, or the immutability checks needs to be stricter. |
| 09:01:24 | FromGitter | <Varriount> Then you risk about going down the whole "const" rabbit hole that C++ fell into. |
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| 09:13:59 | Araq | varriount: we actually have an escape analysis that we could use for this, but it's experimental stuff |
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| 11:54:10 | enthus1ast | is there a nice way to also let assert/doAssert echo the values of the test cases? |
| 11:55:10 | enthus1ast | like "expected: foo" "got: baa" |
| 11:59:49 | stisa | use unittest maybe? https://glot.io/snippets/enoam8wj81 |
| 12:00:14 | Vladar | the most obvious way: |
| 12:00:15 | Vladar | const cond = 1 |
| 12:00:15 | Vladar | var a = 2 |
| 12:00:15 | Vladar | assert a == cond, ", expected " & $cond & ", got " & $a |
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| 12:08:10 | Vladar | and slightly perverted way: |
| 12:08:12 | Vladar | template assertx(a, cond, b: untyped) {.inject.} = |
| 12:08:12 | Vladar | assert cond(a, b), ", expected " & $b & ", got " & $a |
| 12:08:12 | Vladar | const cond = 1 |
| 12:08:13 | Vladar | var a = 2 |
| 12:08:15 | Vladar | assertx(a, `==`, cond) |
| 12:08:26 | enthus1ast | ! |
| 12:08:32 | Vladar | actually inject is unnecessary |
| 12:09:00 | Vladar | so just template assertx(a, cond, b: untyped) = |
| 12:09:18 | enthus1ast | jeah thanks! |
| 12:10:15 | enthus1ast | ahh cond, very nice |
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| 12:22:39 | enthus1ast | it works but i have to reorganize the asserts for this. Think maybe this is solvable by an macro? |
| 12:23:13 | enthus1ast | i'll try it with a macro |
| 12:24:02 | enthus1ast | (finally i have reason to write a macro :) ) |
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| 13:22:38 | zachcarter | Varriount: you caught me shortly after I went to sleep |
| 13:23:08 | FromGitter | <Varriount> :D |
| 13:23:38 | zachcarter | things are going good though thank you for asking |
| 13:24:05 | zachcarter | I just completely re-wrote the framework I’m building from the ground up, since I know a lot more about Nim now than when I started, and things are coming together very nicely. |
| 13:24:09 | zachcarter | how are things going for you? |
| 13:25:45 | zachcarter | https://github.com/zacharycarter/dEngine |
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| 13:28:33 | FromGitter | <Varriount> zachcarter: Well, I just finished another round of midterms and have a small break from classes |
| 13:28:42 | zachcarter | awesome! |
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| 13:29:00 | zachcarter | probably full of homework I imagine :P |
| 13:29:16 | FromGitter | <Varriount> Which means I get to actually work at the office for a bit, rather than remotely |
| 13:29:17 | zachcarter | I miss college, but then not so much too |
| 13:29:26 | zachcarter | ah cool |
| 13:29:43 | zachcarter | what degree are you going for? |
| 13:30:17 | FromGitter | <Varriount> Computer Science |
| 13:30:40 | zachcarter | nice! I’m a history major ;/ |
| 13:30:50 | zachcarter | religious studies minor |
| 13:32:12 | FromGitter | <Varriount> Neat! |
| 13:33:22 | zachcarter | I wish I had gone CS but I was lazy |
| 13:33:32 | zachcarter | I’m paying for it now, but that’s okay |
| 13:34:43 | zachcarter | Varriount: a member that hangs out in here - rauss - he was also starting to work on a 2d game framework for NIm and I think I convinced him to help me with mine once I’m a bit further along |
| 13:35:09 | zachcarter | since I had certain features / things hooked up that he hadn’t yet - like bgfx, and the audio engine, etc... |
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| 15:22:19 | FromGitter | <zetashift> don't forget nimgame2! |
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| 16:23:10 | zachcarter | nimgame2 is good if you want to use the sdl2 renderer |
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| 16:28:20 | demi- | what is the proper way to get nim code started in a debugger? when using lldb it stops on SIGTTIN and SIGTTOU when built with the `--debugger:native` flag and i cannot get my code to build at all using the embedded nim debugger |
| 16:29:26 | cheatfate | demi-, embedded nim debugger, was experimental and now i think it deprecated but still exists. |
| 16:29:39 | demi- | right, that was my fallback |
| 16:30:03 | demi- | and since i cannot get past these signals thrown at the beginning of exec with lldb, i'm wondering what I should be doing |
| 16:30:26 | cheatfate | i dont have lldb to help, but i know it works |
| 16:30:37 | cheatfate | looks like something wrong with TTY |
| 16:30:54 | cheatfate | maybe lldb needs some tty specific settings? |
| 16:31:52 | demi- | i don't think this is an lldb problem, as i can debug any other C code |
| 16:32:28 | cheatfate | can u debug generated c code? |
| 16:35:26 | zachcarter | I can use lldb file |
| 16:35:34 | zachcarter | but I don’t use the —debugger:native flag |
| 16:36:06 | zachcarter | sorry `—debugger:native` |
| 16:36:13 | zachcarter | fine* |
| 16:36:37 | demi- | ah, my bad, was able to attach and use it ok, must be something with lldb interacting with one of the libraries i'm using |
| 16:36:54 | demi- | are there specific symbols to breakpoint on to catch exceptions thrown by nim? |
| 16:37:03 | zachcarter | you can do |
| 16:37:04 | zachcarter | nim c --lineDir:on --debuginfo tools/texture_packer/src/texture_packer |
| 16:37:26 | zachcarter | brb |
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| 20:44:22 | demi- | how do i get the reference to an object? the manual seems to be a bit unclear on that |
| 20:45:05 | demi- | i've got a function that i want to return the ref of an object type i have (not a copy of it) and i'm not sure how i do this |
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| 21:31:14 | handicraftsman | Hi. How do i get current version of app? |
| 21:33:50 | Calinou | handicraftsman: nim version? "nim -v" |
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| 21:34:42 | handicraftsman | Calinou, nope, of current nimble-powered app |
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| 22:23:36 | FromGitter | <JorySchossau> How can I construct proc argument identifiers in a template? Trying: ⏎ ⏎ ```code paste, see link``` [https://gitter.im/nim-lang/Nim?at=58bb3e677ceae5376a70437a] |
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| 22:38:45 | FromGitter | <JorySchossau> Figured it out. |
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