<< 22-06-2015 >>
00:00:44reactormonkwu-lee, proc delay(ms: int) {.importc: "delay".}
00:01:08reactormonkactually proc delay(ms: int) {.importc.}
00:01:12wu-leeaha, useful thanks.
00:01:53reactormonkdoes digitalWrite work or is that arduino-specific?
00:01:55reactormonktime to find out
00:02:11wu-leedunno, I avoided anything like that
00:04:13wu-leeof course: the raw C may have the wrong port offsets for the uno
00:05:07wu-leeI am still figuring out nim, didn't want to add layers for me to untangle.
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00:07:19reactormonkhum. it blinks three times.
00:07:27reactormonkbut otherwise it works.
00:07:49wu-lee"three is the magic number"
00:08:07reactormonkblinks anyway
00:08:07wu-leebetter than no blinks.
00:08:10reactormonk... it's not the code.
00:09:02wu-leethis is nim blinking, or C?
00:10:28wu-leegone 1am here in Edinburgh, I feel a strong need to sleeeep
00:11:21wu-leereactormonk, you've been extremely helpful, thanks, I will need to check back later.
00:11:30reactormonkwu-lee, it just blinks whenever I upload stuff
00:11:32reactormonkwill mess some more
00:11:54wu-leeoh, I see, that may just be the upload process.
00:12:36reactormonkyup
00:12:36wu-leethe the LED which should blink is a different one
00:12:43reactormonknah, I changed it
00:12:55reactormonktook an example from the book
00:13:03reactormonkhttps://gist.github.com/1866f41512899bcfa93c
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00:13:29wu-leeok, on my board, the upload flashes TX and RX LEDs, and the L LED once.
00:15:02wu-leeI forget which pin the built in LED is on, but that's the one my code flashes
00:15:34wu-leewhen it works.
00:15:37reactormonkah, wrong -p
00:15:46reactormonkhere it's 13
00:16:39wu-leesame here by the looks of the example
00:17:50reactormonkcan confirm https://balau82.wordpress.com/2011/03/29/programming-arduino-uno-in-pure-c/ works
00:18:02wu-leebut I've stolen code from all over, and hacked to about.
00:18:32wu-leeyes, that's one of my sources.
00:21:11*wu-lee creeps off to bed
00:21:14wu-leelaterz
00:33:24reactormonkAraq, any way to mark a proc not to be deadcodeelimd?
00:33:38reactormonkthe entry point is defined by another program
00:34:13reactormonkhm, that might pose problems to nim init
00:35:08Varriountreactormonk: Can't you use the push and pop pragmas to turn it off?
00:35:19reactormonkVarriount, nah, doesn't work
00:36:36Varriountreactormonk: The manual states that you can turn it off on a per-module basis. Can't you stick the proc you want in it's own module?
00:36:50reactormonkthat might be an idea
00:37:28reactormonkehh whut
00:37:38reactormonksuccessful but it doesn't produce a binary
00:37:48Varriount?!?!
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00:40:11reactormonkVarriount, https://github.com/reactormonk/nim-test/tree/arduino
00:40:21reactormonknim c -d:release --cpu:avr --os:standalone --deadCodeElim:on --gc:none --parallelBuild:1 -mmcu=atmega328 blink.nim
00:40:31reactormonkyou're gonna need avr-gcc and avr-glibc
00:40:59Varriountreactormonk: Are those available on Windows?
00:41:05reactormonkno idea
00:41:10reactormonkI think so
00:41:24reactormonkVarriount, http://www.arduino.cc/en/Main/Software
00:41:28VarriountAlthough, I guess it's about time I set up a good Linux VM.
00:41:58reactormonkVarriount, https://wiki.archlinux.org/index.php/VMware/Installing_Arch_as_a_guest
00:42:06Varriountreactormonk: Yep.
00:45:10Varriountreactormonk: What does the -mmcu option do?
00:47:11reactormonkVarriount, target arch or something
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01:01:16reactormonkVarriount, ping me when you got your instance up
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02:58:27Varriountreactormonk: Sorry, can't seem to set up my environment right. I'll try a bit more tomorrow
03:05:00dtscodethats cause you're on windows
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04:49:28rgv151hi guys
04:49:33avsejAraq, is there reason not to include all docs into distribution? https://github.com/nim-lang/Nim/pull/2969/files
04:49:55rgv151do Nim have magic consts like __FILE__, __LINE__, __METHOD__ in PHP?
04:50:10Quorargv151: I wouldn't think so
04:50:45fowlisMainModule, instantiationInfo()
04:51:06fowlthere are some magic constants in system.nim
04:51:50rgv151thx fowl
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04:53:40fowlNo direct equivalents to the ones you listed
04:58:01rgv151it's ok, i'm trying implement them myself
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07:27:26Araqavsej: cause they can be built and I like to keep the downloads smaller
07:27:48Araqreactormonk: use .exportc to tell the compiler that it must not optimize it away
07:28:13Araqalso different entry points are not a problem at all, use --noMain for it
07:30:14avsejAraq, okay I see
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09:29:15Uint2048Hi, I'm learning Nim and trying to use SDL2
09:29:42Uint2048but when I try to load a png or jpg texture, it returns a nil ptr
09:29:47Uint2048I can only use bmp
09:29:59Uint2048Here's the code: http://pastebin.com/Q6vUDKR3
09:30:27Uint2048pngTexture, jpgTexture, pngSurface and newPngTexture are nil
09:30:34fowlUint2048: thats SDL it only supports BMPs, use IMG_load in sdl2/image it requires sdl2_image
09:31:16Uint2048I did
09:31:50Uint2048in my code I use "loadTexture()", which is IMG_LoadTexture
09:32:51Uint2048and load() (IMG_Load()), which should return a surfaceptr, but it only works with BMP too
09:33:11Uint2048what am I doing wrong
09:33:17fowlLet me look
09:33:21fowlI'm on my phone
09:33:50Uint2048Thanks
09:33:52fowlDo you call image.init()
09:34:14Uint2048....
09:34:15Uint2048no
09:34:31Uint2048Let me try...
09:36:22Uint2048in image.nim, there's a comment
09:36:24Uint2048"This is completely different than SDL_Init() -_-"
09:36:36Uint2048apparently I'm not the only one who made that mistake haha
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09:38:11fowlDid it work?
09:39:18fowliirc loadTexture wants a power of two sized image, load() and createtexture() should work
09:40:02Uint2048no, image.load() returns an error
09:40:11Uint2048it returns 0
09:40:27Uint2048image.init()
09:40:31Uint2048I mean
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09:40:41fowlCheck geterror from sdl
09:40:56fowlOr w/e the function that returns the last error
09:41:26Uint2048I'm stupid
09:41:29fowlReturning 0 may be good
09:41:30Uint2048wow
09:41:40Uint2048forgot a dll
09:41:54Uint2048I haven't used SDL for 6 months and I already forgot everything
09:42:28fowlLol
09:42:57Uint2048It works!
09:43:05Uint2048I forgot the libpng dll
09:43:12fowlAwesome
09:43:13Uint2048Thanks a lot!
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09:43:28fowlNo prob
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09:57:47Araqfowl: can you port graphics.nim to use SDL 2?
09:57:56Araqand make it a nimble package?
10:00:29fowlAraq, i dont think its needed with sdl2
10:00:44Araqhrm?
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10:01:01fowleverything in here can be done with the gfx ttf and image addons
10:01:36Araqbut it's a different API
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10:40:53vvovaHi guys! I'm trying to figure out how to use Nim to create shared libraries under Linux
10:41:16vvovaBut my simple example crashes when I call library code from different threads
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10:41:25vvovaI use system.setupForeignThreadGC() but probably missing something
10:41:48vvovaHere's the main program: http://pastebin.com/gfe1Qd8R , Nim library: http://pastebin.com/X4CwqxWw , and how I build it together: http://pastebin.com/x5532pAz
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11:24:35fowlyglukhov: nimx is complex man
11:25:29fowlBut I think it will work nicely once I figure it out
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11:39:46yglukhovfowl, the view hierarchy system is alike to MacOS AppKit or iOS UIKit
11:40:01yglukhovyou can see a smaple_controls.nim
11:40:19yglukhovit creates a view and populates it with different controls, that are currently available
11:41:51yglukhovcustom drawing is a bit tricky. context can draw some primitive shapes with fill and stroke colors, but for anything more complex, you should do a composition with GLSL. in future i'll try to make it a bit higher level, so there would be no need to know GLSL
11:42:22yglukhova simple example of composition you can see in the first sample, where a rect is just filled with gradient
11:42:40yglukhovmore complex examples in control implementations
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11:43:13fowlyglukhov: I'm happy with text and windows/controls for now but in the future more vector graphics like paths would be awesome
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11:45:06yglukhovwell, currently I dont know how to do cubic beziers in GLSL effectively. but you already can combine different shapes (rects, ellipses, circles) in a set-like manner (and, or, subtract) to get complex shapes.
11:48:42fowlyglukhov: I will probably wrap or port this https://github.com/memononen/nanovg
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11:58:39Araqfowl: porting seems rather trivial with c2nim
11:59:12yglukhovfowl, I know you wanted to. good luck with that ;) please note however, that my primary goal was to move all shape computations to gpu, and nanovg seems to do a lot of stuff on the cpu
11:59:41yglukhovbtw what do you need beziers for?
11:59:56yglukhovmaybe i'd suggest sonething else instead of them ;)
11:59:58fowlAraq: I started doing it but a major issue is how ints in c are boolean. I change that to != 0 but I'm not sure thats correct
12:00:07Araqyglukhov: oh btw you could also start on the GPU backend if LL is too tedious ;-)
12:00:18Araqfowl: it is.
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12:01:05yglukhovAraq, no, I will fix that bug in your gist as soon as i find some time.
12:01:41yglukhovbesides, i think that glsl transaltion can be easily implemented in a lib, not compiler
12:01:54yglukhov* relatively easily ;)
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12:02:12fowlyglukhov: I want to do a game that involves drawing out neural nets, a shader could probably make gross rectangles look like curvy paths though
12:02:27fowlEr lines
12:03:49yglukhovI see. nimx probably will not help as it stands now (
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12:04:35yglukhovyou can draw any shape with a shader as long as you can define a distance function for this shape. so if you can, nimx may help ;)
12:04:51fowlyglukhov: I just need enough GUI to make a live system browser
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12:06:00fowlThis will do nicely :)
12:06:20yglukhovok then =)
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14:17:48Uint2048Hey, is there a way to remove an element from a seq?
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14:18:07Uint2048and have it resize dynamically
14:18:15Araqdel or delete
14:19:43Uint2048Thanks
14:20:20fowldel replaces idx with the last item in the seq
14:20:47Uint2048while delete keeps the order?
14:21:04fowlyes
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14:43:07jackvis casting the best way to convert an unsigned integer to a signed integer?
14:43:50Araqyou can also use type conversion T(x)
14:44:38jackvAraq, but conversion from, say uint8(255) to int8 is invalid
14:45:22Araqyeah, if you just want to fuck with bits, use cast
14:45:28jackvalright
14:46:44jackvalthough I discovered that 'uint8(int8(-127) and 255)' will work for converting in the other direction
14:46:54jackvnot sure if that's a bug or a feature though
14:47:23Araqfeature
14:47:31jackvsweet
14:47:45jackvthat's safer than casting, correct?
14:48:00Araqa bit
14:48:25jackvheh, I'll take it. I was just wondering if there was some feature that worked in the other direction that I could take advantage of
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14:55:41reactormonkAraq, I did - ok, --noMain it is
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16:19:15boopsiesso let's say i have a strtab, and i want to take all the keys and join then
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16:19:20boopsies(contrived example, buuut..)
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16:19:33boopsiesdoing table.keys().join(", ") doesn't work
16:19:42boopsiespresumably because keys is an iterator..
16:19:44boopsieshttp://nim-lang.org/docs/strtabs.html#keys.i,StringTableRef
16:19:50boopsieswhat's the proper way to do this?
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16:22:17boopsieshmm.. wrapping in toSeq() seems to work
16:22:20boopsiesnevermind!
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18:40:18Arrrrit is possible to push the public ('*') modifier?
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18:42:15AraqArrrr: nope
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18:43:04Arrrrwell, thanks
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19:02:00Arrrr"nim\lib\pure\endians.nim(30, 11) Error: VM is not allowed to 'cast'" is this ok? https://github.com/nim-lang/Nim/blob/master/lib/pure/endians.nim#L30
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19:15:00fowlArrrr: it means you can't use it at compile time
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19:17:28ArrrrYou are right fowl, it is used for a const def
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19:43:25federico3any plan for the next Nim release?
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19:45:25ArrrrI's going to be renamed to 'N'
19:45:39Araqfederico3: not really. I'm busy until the end of July.
19:45:44AraqArrrr: lol.
19:46:31Araqperhaps we can release 0.11.4 with some fixes and that cleaned up the Nim library and the 32 vs 64bit issues on windows
19:47:03federico3yes, please!
19:48:22Araqalso I think I can merge my "simple and safe and ultimately insane" memory sharing for threading prototype
19:50:05FedeOmotothat'd be really cool! :)
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19:55:31FedeOmotoisn't this supposed to work?:
19:55:44FedeOmototype Type = ref object of RootObj SubType = ref object of Type proc newSubType: SubType = new(result) proc testSeq(s: seq[Type]) = discard testSeq(@[newSubType()])
19:56:08FedeOmotoa.nim(11, 8) Error: type mismatch: got (seq[SubType]) but expected one of: a.testSeq(s: seq[Type])
19:56:42FedeOmotolet me try to indent that...
19:56:51Araqsubtyping doesn't compose.
19:56:51FedeOmototype
19:57:00FedeOmoto Type = ref object of RootObj
19:57:16fowlFedeOmoto, hey
19:57:25FedeOmotohey fowl!
19:57:44AraqA <: B does not imply seq A <: seq B
19:57:47fowlI saw you are working on a smalltalk, I am making one too :)
19:57:57FedeOmotoLOL!
19:57:58FedeOmotohahaha
19:58:01Araqnot does it imply seq B <: seq A
19:58:22Araq*nor
19:58:37FedeOmotoyeah, I think I finally came to the right language to implement a Smalltalk ;)
19:58:38AraqI dunno why that's not common knowledge by now
19:58:45FedeOmotoI see, thx Araq!
19:59:21fowlFedeOmoto, i have a simple irc bot atm, working on gui next https://github.com/fowlmouth/ducking-robot/blob/master/ircbot.nim#L220
19:59:45FedeOmotowow! that's really cool!
19:59:50fowlit was simple because it just uses nims irc module
20:00:53FedeOmotoWhat do you plan to use for the GUI part? I was planning on using IUP, I really like native interfaces...
20:01:18fowlnot sure yet
20:01:40fowlmaybe nimx
20:02:58federico3what is the right tool to use for cmdline parsing?
20:03:20federico3parseopt? parseopt2? parseCmdLine?
20:03:21FedeOmotoFYI, besides LLVM, I recently created a wrapper around GMP, maybe it can be of use for your Smalltalk ;)
20:05:07fowlcool
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20:11:40AraqFedeOmoto: there are a couple of these around already. did you check nimble?
20:12:30Araqfederico3: parseopt, IMO
20:12:54FedeOmotoAraq: bignum libs?
20:13:04AraqFedeOmoto: GMP wrappers
20:13:14Araqand bignum libs too of course
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20:14:26FedeOmotoAraq: yeah, I'm aware of def's one, and the other one I know of is jovial's one. In fact, mine is a wrapper around jovial's GMP bindings
20:14:37Araqok good
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20:26:38reactormonkpigmej, if you like https://github.com/nim-lang/nim-mode/pull/32, feel free to merge it
20:35:32pigmejreactormonk: I'm not so sure about that lexical bind, but that would explain why we needed some defered hacks :)
20:35:42reactormonkpigmej, yup
20:35:53reactormonkgotta need lexical bind for lambdas
20:36:13pigmejyeah
20:36:23pigmejbut then no lexical-let needed ;-)
20:36:25pigmejso probably it will work as it is
20:38:08reactormonktest it if possible
20:38:24pigmejyaeh sure
20:39:33reactormonkalso, if you're first, you can choose the lib https://github.com/nim-lang/nim-mode/issues/33
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20:48:01pigmejreactormonk: I renamed call-signatures to thing-at-point
20:48:26reactormonkpigmej, if that's the official name :-)
20:48:40pigmejwell, because we can do more than call signatures :P
20:48:52pigmejit wil work for macros, variables loops etc
20:49:34reactormonkawesome
20:49:38pigmejand we will need temporary buffer to apply syntax rules / coloring on text, and then dispaly it as it is in minibuffer ;)
20:49:47pigmejdisplay*
20:51:18pigmejbecause my current method...https://github.com/pigmej/nim-mode/blob/thing-at-point/nim-thing-at-point.el#L40 is bad, and we would die with it:P
20:53:10reactormonkSure, why not
20:53:14reactormonksounds like the emacs way to do it
20:53:53pigmejorg-mode does it with that temp buffer
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21:06:31pigmejreactormonk: that pull/32 works for me
21:07:11reactormonkpigmej, then merge it
21:08:05pigmejyeah I just did it:)
21:08:24reactormonkperfect
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21:23:05FedeOmotosee you guys
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21:50:35wu-leereactormonk, did you get anywhere with arduino?
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21:50:51reactormonkwu-lee, nope, I'll take another look in ~2-3h
21:51:17reactormonkmaybe with --noMain and {.exportc.} on loop and setup procs it might work
21:51:17wu-leeok, no especial hurry, just curious
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22:35:44reactormonkNot sure why people insist on squashing commits :-/
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23:04:42wu-leereactormonk, if main() is moved to top of blink.c nimcache file, it can upload and run successfully
23:05:00reactormonkwu-lee, so the entry point is the problem
23:05:16wu-leecurrently hunting for magic incantations to get nim compiler to do that, without dead code elim removing call to NimMain
23:05:54reactormonkjust use exportC
23:06:01reactormonkthen deadcodeelim shouldn't touch it
23:06:55reactormonkmaybe via noMain and hack it manually?
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23:07:50wu-leeI am using exportc pragma on an explicit main(), which calls discard NimMain, which is {.importc,cdecl.}
23:08:04wu-leehowever, no call to NimMain appears in generated code
23:08:28reactormonkwhy discard?
23:08:32wu-lee(also with --noMain as suggested)
23:08:47reactormonkyou marking the main with exportc?
23:08:49wu-leebecause NimMain returns no value, and the compiler seems to insist
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23:10:50wu-leehttps://gist.github.com/wu-lee/902446e8dad3f905f317
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23:11:33wu-leeresulting main() function simply returns 0
23:13:17reactormonkhm
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23:13:29reactormonkmaybe recursion problem?
23:14:09wu-leedunno, I see no obvious errors or evidence of recursion
23:14:16DemosStatus on the module init name mangleing bug?
23:14:33XeDemos: ?
23:14:54Demosyou can get linker errors due to the way we generate our module initialization functions
23:15:36Xeis there a github ticket for it?
23:16:09reactormonkXe, I don't think so
23:17:34reactormonkDemos, was that the bug from twitter that no one put into the issue tracker?
23:17:45Demosyeah
23:17:57DemosI guess I should make an issue huh
23:18:07reactormonkDemos, or forward how to do it ;-)
23:18:24Araqand create a PR to fix it, it's trivial
23:18:45Araqjust append 000 to the Init string literal in the C code generator
23:19:12Demosare numbers not valid trailing characters for module names or something?
23:19:33reactormonkDemos, nah, just no one ever bothered
23:19:47Demoslike won't that just change the names you need to use to trigger the bug
23:20:17DemosI gotta install the whole dev stack to change it. I'll get started tho
23:20:32reactormonkDemos, yeah. But who calls their function FooInit0000
23:20:58Demosugh. We should use invalid/reserved nim names
23:21:08reactormonkthere are no reserved names
23:21:14reactormonkit's still gotta be a C function name
23:21:42DemosI suppose
23:23:07AraqDemos: yeah all you can do is come up with names that are unlikely to produce conflicts
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23:30:57Uint2048Hi, I want a variable in a module be accessible from other modules but not modifiable directly
23:31:30Uint2048so I have a variable FRenderer: RendererPtr, and a "getter" proc renderer*() that returns it
23:32:38reactormonkUint2048, imo don't use getter procs
23:32:56reactormonkand not modifiable is via not specifying "var" - not sure about ref types though
23:32:57Araqthat sounds really bad. the pointer allows write access anyway
23:33:53Uint2048but
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23:35:51wu-leereactormonk: no more progress making main() call NimMain(), calling it a day.
23:38:14reactormonkwu-lee, ah fuck
23:41:41federico3parseopt? parseopt2? parseCmdLine?
23:46:30Uint2048Ah well, I fixed the problem (that I didn't explain)
23:46:40Uint2048I was using "renderer" without parentheses
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23:51:10Uint2048reactormonk, is this bad? http://pastebin.com/STMpmqbQ
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