<jokke>
as you can see there ^ the links won't generate probably
<jokke>
*properly
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<hmelaine>
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▄▄▄▄▄▄▄▄▄▄▄ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS lmnlv: OceannBoy jeromegn binBASH ▄▄▄▄▄▄▄▄▄▄
<hmelaine>
▄▄▄▄▄▄▄▄▄▄ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS uzmbzuspy: pabs dahhowl OceannBoy ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
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<hmelaine>
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<hmelaine>
▄▄▄▄▄▄▄▄▄▄ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS ilzllkvavh: juni0r dyreshark pabs ▄▄▄▄▄▄▄▄▄▄
<hmelaine>
â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS mokslnp: dahhowl [spoiler] tliff â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–
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<FromGitter>
<picatz> :|
<hmelaine>
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<faustinoaq>
Please, ban this bot :(
<jokke>
:/
<hmelaine>
▄▄▄▄▄▄▄▄▄▄▄ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS josun: mroth jeromegn go|dfish ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
<hmelaine>
▄▄▄▄▄▄▄▄▄▄▄▄ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS oxtrpnb: c-c jhass salvor ▄▄▄▄▄▄▄▄▄▄▄▄▄▄
<jokke>
why is this channel getting so much spam?
<hmelaine>
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<hmelaine>
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<hmelaine>
â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS hnefj: chrisarcand go|dfish Cyrus â–„â–„â–„â–„â–„â–„â–„â–„â–„â–„â
<hmelaine>
▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS gspye: jfontan binBASH lvmbdv ▄▄▄▄▄▄▄▄▄▄
<FromGitter>
<picatz> Why is this bot so badly programmed.
<FromGitter>
<picatz> :|
<hmelaine>
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<hmelaine>
▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄ ##FEMINISM IS OFFERING TRAINING IN TAPPING INTO YOUR INNER FETISHES!! EL IS IN #FREENODE FOR ANY QUESTIONS vltknb: g3funk wmoxam foxbot ▄▄▄▄▄▄▄▄▄▄▄
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<jokke>
picatz: not crystal
<jokke>
:D
<FromGitter>
<picatz> Right? :P
<jokke>
so just that my question doesn't disappear under all that spam:
<jokke>
lets hope the pr author gets his/her commits together :P
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<Papierkorb>
In case that spam shit continues, if I don't react (and there's a chance I'm not afk) myself, ping me by mentioning me. Banning that punk is no issue after that.
<Papierkorb>
jokke: Your TLS cert is broken, the p one doesn't have the ipfs one as alt name
<Papierkorb>
jokke: You may like my jsonrpc shard btw, I wrote it for a btc related project, so it totally can talk to bitcoind
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<FromGitter>
<asterite> I think so. I think with more forks it becomes slower to compile, but you can play with that number, maybe it's not the best
<RX14>
hmm
<RX14>
well hopefully thinlto solves this
<RX14>
I think it matters on osx and linux too
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<hightower4>
How do I run a build without using any cached .o files?
<RX14>
why?
<RX14>
delete ~/.cache/crystal
<hightower4>
just some speed tests
<RX14>
ok
<RX14>
yeah just delete ~/.cache/crystal
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<FromGitter>
<asterite> RX14 I can later try to fix the issue with the corrupt cache. What did you suggest to do?
<RX14>
@asterite File.move is atomic, so generate the files to tempoary names, and only move the files to their correct locations to be used *next time* when the compilation suceeds completely
<RX14>
it solves the case of corrupt or incomple .o files when the compiler is interrupted when writing out the object files
<RX14>
since the incomplete object files are never moved to the correct place
<RX14>
and then a short pass at the beginning of the compiler run could possibly clean up the folder for any tempoary .o files
<FromGitter>
<asterite> I think that last thing might not be needed, eventually the compiler will erase that folder if the program isn't compiled after a few times. And maybe those files don't bother in the cache (if they weren't moved because of an interruption)
<RX14>
yeah
<RX14>
i was thinking it was optional too
<RX14>
but not hard:
<RX14>
just have a prefix for the tempfiles
<RX14>
then Dir.each() { |f| File.delete(f) if File.basename(f).starts_with? '-' }
<RX14>
or similar
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<RX14>
but not important
<ogotai>
hi all, are the pointer types (e.g. "Void*") used anywhere else in Crystal, other than between lib ... end? I know Pointer type exists, but the C-style asterisk pointers don't seem to be documented anywhere
<RX14>
they can be used anywhere
<RX14>
Void* is just a shorthand for Pointer(Void)
<RX14>
just like {Foo, Bar} is a shorthand for Tuple(Foo, Bar)
<RX14>
and it's only at the type level
<RX14>
there's no * operator on pointers
<RX14>
or & for pointerof
<ogotai>
got it, thank you - and the reverse of that is true as well presumably, I could use "fun funname(abc : Pointer(Void))", istead of "fun funname(abc : Void*)" in lib declarations?
<RX14>
of course
<RX14>
they're equivalent to the compiler
<FromGitter>
<asterite> Maybe we could remove those aliases. They are convenient but lead to confusion
<FromGitter>
<asterite> Pointer(Void) works anywhere, but Void* doesn't
<ogotai>
I noticed most people seem to be using asterisk notation when linking to C functions in libs, and Pointer declarations when writing regular Crystal, which is why I was wondering if each is only allowed in those places
<ogotai>
follow up question - I see lots of "LibC::Int" and similar types in lib declarations again, are those documented anywhere, do they map directly to C types?
<crystal-gh>
[crystal] asterite opened pull request #5585: Compiler: emit `.o` file to a temporary location and then atomically rename it (master...refactor/improved-cache) https://git.io/vNctC
<FromGitter>
<asterite> RX14 I think in most cases it is, that file is probably a left over from older days
<RX14>
@asterite the travis problem isn't this one
<FromGitter>
<asterite> what travis problem?
<RX14>
the compiler failed once or twice on travis with weird .o corruption
<RX14>
i'm just saying it can't be solved by this PR since the compiler is never interrupted
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<RX14>
I've never had ~/.cache/crystal become corrupted in the last year
<RX14>
and I use a compile-on-change tool which kills the compiler a lot
<RX14>
well, can kill the compiler
<FromGitter>
<asterite> Hm, then it's strange
<FromGitter>
<asterite> I bumped into the cache issue a few times recently
<FromGitter>
<asterite> not sure why it would happen in travis, though...
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<RX14>
@asterite well this is just my suggestion and I think it's a good thing to do anyway
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<emilsp>
so, crystal init app babies_first creates a new """project"""
<emilsp>
how do I build the newly created project?
<jokke>
can i i~
<jokke>
oh
<jokke>
sorry
<jokke>
can i somehow use forward_missing_to on class level?
<jokke>
emilsp: with shards build
<RX14>
emilsp, `shards build` or `crystal build src/your_file.cr`
<oprypin>
jokke, no
<RX14>
the latter is more general and you should know well
<jokke>
oprypin: oh :(
<RX14>
the former is shorter
<jokke>
the former also puts the binarys in a dir that's in gitignore, which is always a plus ;)
<jokke>
oprypin: is there an obvious reason why that's not possible?
<oprypin>
macros don't act at class level
<jokke>
mh
<RX14>
hmm
<RX14>
i presume people have tried macros and extend self
<RX14>
because extend self should *theoretically* place the macros on the superclass
<RX14>
which could respond to method_missing
<RX14>
I have 0% faith that that works
<jokke>
:D
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<greenbigfrog>
no shard yet for QR code generating?
<RX14>
if it's not on google, probably not
<emilsp>
thanks jokke and RX14
<FromGitter>
<lbguilherme> Hello everybody, I have been doing some work on a RethinkDB driver library for crystal, but looks like I just hit a wall: ⏎ ⏎ This a valid query: ⏎ ⏎ ``` code paste, see link``` ... [https://gitter.im/crystal-lang/crystal?at=5a5b75d35ade18be3974ebb3]
<greenbigfrog>
I'll just use some online service in that case. if anyone deos write one, lemme know
<greenbigfrog>
thanks
<emilsp>
greenbigfrog: you can always try and use a C library for that
<FromGitter>
<sdogruyol> @lbguilherme I'm pretty sure we had an issue about block overloading
<FromGitter>
<lbguilherme> I have settled up with having a single "overload" taking many arguments (say 5), then after the whole query is generated, dynamically traverse the tree to analyze which variables are used and which are not used. Then remove the unused one and count the remaining. This is a little too much, but should do what I want without breaking the interface. @faustinoaq I considered this, but looks awful to use :(.
<FromGitter>
... Would be my last hope solution.
<jokke>
is
<jokke>
is it possible to use option parser in such a way that it will just ignore unknown options?
<jokke>
i need an initial option parser to parse a config option which i need for the second parser
<greenbigfrog>
sometimes I get the error, sometimes I don't
<FromGitter>
<Dillybob1992> how do we send the correct bytes tot he socket to be read as individual messages? ⏎ ⏎ ``` code paste, see link``` ⏎ ⏎ then on the server, we use `socket.read_string(bytesizeherebutwherefrom)` [https://gitter.im/crystal-lang/crystal?at=5a5b9d21ce68c3bc74b82c2c]
<FromGitter>
<bew> No
<FromGitter>
<bew> send_buffer_size, like recv_buffer_size has nothing to do with the actual data you want to send
<FromGitter>
<marksiemers> @greenbigfrog - If you are using HTTP, then the `body` is going to be text (a string) so if part of the body needs to be an integer, then part of it needs to be converted from String to an integer.
<FromGitter>
<bew> Those methods are configuration methods for the socket, used by the stdlib to do specific things, they are not meant to be used by you
<FromGitter>
<Dillybob1992> ohh ok
<FromGitter>
<bew> Just use read* or write* methods, e.g: `write_bytes(Int32, the_payload_size)`
<FromGitter>
<marksiemers> hmm, I'm having a hard time tracking in the code and error trace where things are going wrong though
<FromGitter>
<marksiemers> `:jsonrpc => "1.0"` - this is the only obvious thing that sticks out as possibly causing a problem trying to convert to an integer.
<FromGitter>
<bew> @Dillybob1992 and `payload_size = socket.read_bytes(Int32)` to read it on the other end
<FromGitter>
<Dillybob1992> kk awesome let me try this
<crystal-gh>
[crystal] lbguilherme opened pull request #5587: Fix strdup for LibXML: undefined behavior (master...patch-10) https://git.io/vNcBd
<greenbigfrog>
calling `get_transaction` in test.cr works, and the other one as well (partly) all of a sudden
<greenbigfrog>
and it doesn't again
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<greenbigfrog>
added you to the private repo marksiemer
<FromGitter>
<l3kn> @Dillybob1992 `socket.write_bytes(msg_to_send.bytesize)` should do what you need
<FromGitter>
<Dillybob1992> i see, no error now. but how does it know the message i sent
<FromGitter>
<Dillybob1992> if it's only in bytes, is it encoded?
<FromGitter>
<l3kn> This is not sending the message, just the size
<FromGitter>
<l3kn> Next, you would need to send the message itself
<FromGitter>
<Dillybob1992> ohhhhhhhh
<Papierkorb>
Dillybob1992, Have you considered using an existing protocol instead of rolling your own?
<FromGitter>
<l3kn> and then on the other side (receiver), first do a `socket.read_bytes(Int32)` to read the size you sent
<FromGitter>
<Dillybob1992> i was going to use the kemal websocket module but the game engine i use doesn't have websocket support. this TCP stream stuff is really hard but glad im getting help understanding it here :)
<Papierkorb>
Can't you bind to the game engines network library?
<FromGitter>
<Dillybob1992> @l3kn ok will try
<ogotai>
Why does the compiler complain about type name, when I "type OM_uint32 = LibC::UInt" and declare "fun x(param1 : OM_uint32)", pass an Int32 to it, while if I declare "fun x(param1 : Libc::Uint)" directly, it no longer complains? The complaint in the first instance is "must be OM_uint32, not Int32"
<FromGitter>
<Dillybob1992> OH wow! so `read_bytes(Int32)` doesn't take in the amount of BYTES
<FromGitter>
<Dillybob1992> it just takes in the Type!?
<FromGitter>
<Dillybob1992> I think I got it working!!
<ogotai>
Am I supposed to "hide" the type later in the crystal lib wrapper for the C functions, cause the lib users presumably shouldn't be expected to use all the exotically named typedefs in the C library I'm trying to wrap right?
<RX14>
yep
<ogotai>
thanks
<RX14>
you're expected to only use the lib def inside your shard
<RX14>
and expose a sanitized crystally OO interface
<FromGitter>
<marksiemers> @greenbigfrog - I don't know if I'll be able to spend a lot of time with it today, but I've cloned the repo. ⏎ Is it possible to write a `Spec` that reproduces the error?
<RX14>
lib definitions actually are automatically ignored by the doc tool
<greenbigfrog>
not really. I can't get it to either fail across all calls or to work...
<ogotai>
makes it slightly difficult to write the lib, was hoping to define all types exactly as they're named in the C library, and then just copy&paste function definitions effectively - this way I'll have to convert the type names for every function - a bit more work
<FromGitter>
<l3kn> @Dillybob1992 When you are sending something (like`message.size`) crystal “knows” the type (Int32) and sends it as 4 bytes
<FromGitter>
<l3kn> to read it back in, you need to tell it what type it was
<FromGitter>
<Dillybob1992> understood fully now, this is really neat
<Papierkorb>
ogotai: There are a few automatic/semi-automatic binding generators around. If this isn't a really small lib, it might be worth it checking them out
<FromGitter>
<bew> @Dillybob1992 was on phone, wasn't sure about the method args, 'glad it's working now!
<ogotai>
Papierkorb: any better ones than "crystal_lib" that you know of the top of your head by chance?
<olbat[m]>
Well, libgen is just a small wrapper on crystal_lib (that does not seems to be maintained anymore ?), bindgen in the other hand seems to be a more complete and robust tool ...
<FromGitter>
<marksiemers> @greenbigfrog - It is a little too much setup for me to dig in and reproduce the problem (setting up the wallets and the databases for each coin). ⏎ If there is a way to reduce the problem or automate the setup with same throw-away wallets, then I'm happy to help.
<greenbigfrog>
I'm trying...
<olbat[m]>
If you like the way to create bindings using YAML/JSON files, I can try to work on interfacing libgen with bindgen :)
<Papierkorb>
...?
<Papierkorb>
Bindgen already uses YAML configs
<olbat[m]>
Oh yeah ? My bad, sorry I didn't know that ...
<RX14>
what it doesn't do is the no setup @[Include("foo.h")] angic or anything like it
<RX14>
magic*
<RX14>
I think making it too easy is a bit of a bad idea myself
<RX14>
C bindings are nowhere near robust enough to be used by people who can't write C
<FromGitter>
<Dillybob1992> can we have global constants, for example, MAX_PAYLOAD_SIZE?
<RX14>
@Dillybob1992 yes, just put them at the top level
<Papierkorb>
Just stuff them into a class or module where it fits
<FromGitter>
<Dillybob1992> sweet, ty
<RX14>
but yes
<RX14>
it's recommended to put your whole application in one module
<RX14>
like module GameServer
<RX14>
and put everything in your project in that
<FromGitter>
<Dillybob1992> oh yea, i should prob put it in there
<RX14>
that doesn't mean one file
<RX14>
i hope you understand
<FromGitter>
<Dillybob1992> i will eventually ^_^
<FromGitter>
<Dillybob1992> im slow :D
<RX14>
not really
<RX14>
you seem to be doing fine
<FromGitter>
<Dillybob1992> thank you =]
<RX14>
at least you're willing to learn, and put the effort in, unlike some people who come here for advice
<olbat[m]>
Thank you for the link Papierkorb, I'll take a look at it, it seems to be really customisable :)
<ua>
Dillybob1992, ive found that %q{ } doesnt do string interpolation as opposed to %Q{} ;)
<RX14>
Papierkorb, you use libclang, but custom bindings in bindgen right?
<Papierkorb>
RX14: libclang, but controlled from a C++ process
<RX14>
oh
<ua>
do --release already uses all possible optimization or can I tweak it even more?
<FromGitter>
<Dillybob1992> @ua, ya i just googled how to multi comment on subtlime i heard its CTRL+/ so i jus tuse that now lol
<RX14>
ua, all of them
<RX14>
yay
<ua>
eh okay thanks
<RX14>
see
<ua>
noooooooOOOOOOO
<RX14>
this is why we don't have a multiline block comment syntax
<ua>
;P
<Papierkorb>
Cause the C bindings are weird and lack many essential features
<FromGitter>
<Dillybob1992> haha, never knew about it until starting to use crystal too, which is cool
<RX14>
Papierkorb, so you wrote a C++ application which just dumps clang's data to JSON?
<RX14>
that's cool
<Papierkorb>
Basically, yes
<RX14>
seems like a decent standalone tool tbh
<RX14>
it must be fairly language agnostic
<Papierkorb>
In a future upgrade that thing would turn into a "daemon", to ask it at runtime to figure something out. Then bindgen could do full auto-discovery
<RX14>
what do you mean by "full auto-discovery"?
<Papierkorb>
You just tell it "I want QObject and everything that derives from it too"
<RX14>
oh
<RX14>
cool
<Papierkorb>
You could kinda do that right now by passing a flag to make it do that, but I don't like how that'd hand over the control of the whole process to the clang daemon.
<FromGitter>
<Dillybob1992> is it possible to check if a msg is valid JSON?
<FromGitter>
<bew> Try to parse it?
<FromGitter>
<Dillybob1992> it raise error?
<FromGitter>
<Dillybob1992> ``` code paste, see link``` ⏎ ⏎ this works good, if the client does send a valid json. However, if the client sends wrong json, the loop breaks and no error is raised (i rescue below). do i need to check if `JSON.parse(msg).nil?` maybe? [https://gitter.im/crystal-lang/crystal?at=5a5bb2265a9ebe4f758780c1]
<FromGitter>
<bew> Yes, you need to rescue the exception if it fails, which would mean that it's not valid json
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<FromGitter>
<Dillybob1992> LOL WOW, i had a `break` right below the rescue so the error wasn't showing
<FromGitter>
<Dillybob1992> is it possible to make a method break out of its loop do from another function? for example, i have a `def spammer loop do sleep(0.1) socket << "msgs" end` and once the client has been disconnected from server (i check that in my spawn handle_connection), i want to tell `spammer` method to stop looping
<FromGitter>
<bew> No, you should use either a signal variable or maybe a channel to control the spammer's loop
<FromGitter>
<Dillybob1992> signal variables? what is this sorcery. ok will read on those now
<FromGitter>
<bew> Nothing magic, just a variable like `need_stop = false`, and you make your loop as: `until need_stop; code; end`
<FromGitter>
<bew> And you'll just need to set `need_stop = true` somewhere to stop the loop
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<FromGitter>
<Dillybob1992> oh gotit
<Papierkorb>
just make the looped method return true/false if it wants to be called again or not. No need to add vars
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<FromGitter>
<Dillybob1992> Kemal Websocket benchmark is kinda of crazy
<FromGitter>
<Dillybob1992> i am so happy i am switching to crystal
<FromGitter>
<sdogruyol> welcome and glad to hear that :) @Dillybob1992
<FromGitter>
<Dillybob1992> haha, you are the author, great article btw :) 👍
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<FromGitter>
<Dillybob1992> I have a question about memory management not sure if I am doing this right. In my code below, I delete the `RPG_USER` class from my `users` array when a user disconnects. since everything is "objects" in crystal, this means if I keep a clean `users` array, the memory will be cleaned up on `delete`?
<ogotai>
is there a smarter way to assign literals, e.g. this "stat : UInt32 = 0" fails because 0 is assumed to be Int32, so has to be converted to "stat : UInt32 = 0_u32" - do all literals have to be strictly type specific?
<FromGitter>
<Dillybob1992> i mean, i always know i need to keep arrays clean i guess,that's an instilled value that will carry me good in crystal, right
<FromGitter>
<l3kn> javascript is garbage collected, too, so you don't need to do anything else in crystal
<FromGitter>
<Dillybob1992> @l3kn sweet!
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