#zig on 2018-08-25 — irc logs at freenode.irclog.whitequark.org

2017-10-08 17:35 ChanServ changed the topic of #zig to: zig programming language | ziglang.org | be excellent to each other | channel logs: https://irclog.whitequark.org/zig/

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15:04 <DutchGhost> given a list of types, is it possible to create a struct with it?

15:05 <DutchGhost> it'd look something like 'struct whatever { inline for(types) |t| { ..: t} }' or something?

15:15 <cgag> not actually sure how formatting enums should work but it seems to be broken atm: https://gist.github.com/cgag/8e1d2289cfbb3c842d61ebdddf0316f7

15:21 <cgag> i can open an issue if i'm not misunderstanding something

15:23 <MajorLag> DutchGhost: No. This is what reify is intended to do, but we're not sure the feature is a good fit for zig's goals.

15:26 <MajorLag> cgag, what build are you on? I don't see any use of @memberName in std.fmt

15:28 <MajorLag> ah, ok, nevermind there's been an update since a few days ago

15:31 <MajorLag> yeah, that's a bug. looks like andrewrk added some struct printing behavior, but it's very simple right now.

15:38 <MajorLag> you can work around it by: `@tagName(Food.Cheese)`

15:39 <cgag> ah yeah, meant to mention that was what i ended up doing, thanks though

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16:49 <bodie_> has anyone played with lz4 bindings?

16:50 <bodie_> I'm having a hell of a time getting my encoded output to work with LZ4_decompress_{fast,safe}, but it works just fine with the CLI decoder

16:57 <scientes> bodie_, i've done worked with lzo and zstd in C

16:58 <scientes> link?

17:03 <scientes> I am really a fan of the way go handler IO, even if you remove the NM scheduler part of it. interfaces and being able to wrap something in lz4 for example works really well.

17:03 <scientes> I'd like to see that in a gc-free language

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17:22 <bodie_> yeah, Go's io interfaces are really simple and useful.

17:23 <scientes> and its pseudo-syncronous interface is easiest, rather than true asyncronous

17:23 <bodie_> scientes -- https://github.com/binary132/wip-phx-resource/blob/master/res.cxx

17:24 <scientes> whers the zig? sorry, I don't really know cpp

17:24 <bodie_> I discovered that if I just echo the output to stdout, I can use lz4cat to decode it no problem.

17:24 <bodie_> Oh, yeah it's not a zig program, I was just wondering if anyone was familiar w/ lz4, really.

17:25 <scientes> ahh you need to have a bufer large enough for the DEcompressed length

17:25 <scientes> not compressed length

17:25 <bodie_> yeah, I have that. :/

17:26 <bodie_> I'm using a go CLI to compress and encode some files into byte array literals and then embedding them in the class.

17:26 <bodie_> So the encoder knows how big the original content was.

17:27 <scientes> sounds like premature optimization

17:28 <bodie_> I think it's a sound design for embedding resource files in a game binary.

17:29 <bodie_> There are tools that do similar things for Go and Rust, but it seems like there's nothing like that for C++.

17:29 <bodie_> The fun thing about this tool is that it will support other language literal encoders easily by implementing a Writer interface. :D

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17:50 <DutchGh0st> Given a type, can you find out if the type has a method named <whatever> ?

17:56 <bodie_> I think you have to use the type, right? there's a comptime typeinfo object that has the names of its methods, I think.

17:59 <bodie_> https://ziglang.org/documentation/master/#typeInfo

18:00 <DutchGh0st> yeah, you can yank out the 'Struct', which has a defs list, which I suppose are functions?

18:00 <DutchGh0st> or...methods?

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18:10 <DutchGh0st> what would @typeInfo(@typeOf(some_struct)) be?

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