Viewing profile — asterite

Those functional languages don't have function overloading or named arguments. The type inference in Crystal works very differently. The type of a method can only be computed from …

"Fast as C" should maybe be changed to something else. Crystal can bind directly to C functions and libraries without any overhead, plus you have pointers and other stuff. So you c…

Oh, release builds do take longer. My point of view is that while developing you don't need the `--release` flag, so you can get a more or less fluent experience. The few times whe…

That's about speed (though I think Truffle/Graal make an app consume more memory). Crystal is type-safe, and no optimizing VM can do that for Ruby. Not that type-safety is a killer…

The compiler takes about 30 seconds or a bit more to compile, and it has around 50000 lines of code. Do you have the few hundred lines that took you 30+s to compile?

You could basically say the same about any language. Just switch the descriptions. For example: C#: verbose, magical dependency injection, Microsoft, etc. Ruby: slow Go: ugly synta…

I wouldn't commit to any specific date. It's not something you can timebox.

Here are the reasons for 'end': https://github.com/crystal-lang/crystal/wiki/FAQ#why-isnt-th...

Yes, it will be available before 1.0. It's on the roadmap.

Yes, this is what Crystal 1.0 will look like. Parallelism is on the roadmap.

We do, and we will. We are working on it :-)

Thank you! I didn't know that easy way to reply. The compiler does some incremental compilation for the generated object files, so compile times are kept relatively small. Other th…

I can't seem to reply to your reply to this, but the error message has nothing to do with where a class is defined. You can't compile a part of your application in crystal, there a…

We (think we) have good reasons for that: https://github.com/crystal-lang/crystal/wiki/FAQ#why-isnt-th...

It will simply stop compiling the code and it will say "undefined method 'talk' for Snake". You will get a similar error if `talk` is defined as an abstract method in the base abst…

We mostly want to never have to do this. This way we can guarantee that "no method error" never happens at runtime (one of the most feared exceptions after a big refactor in a dyna…

Thank you for the detailed analysis! Yes, Crystal will definitely need a lot of work. On the other hand, maybe this work is also fun :-) Also there's the thing that Go has big Goog…

All the languages couldn't fit in the talk, but the full benchmarks are here: https://github.com/kostya/benchmarks As always, take benchmarks with a graint of salt. We use benchmar…

It will never run Rails. Crystal is just heavily inspired by Ruby, but has already diverged in a lot of places in terms of syntax and semantics. Plus, Ruby has "eval" and "send", w…

The current HTTP server is pretty fast. Did you try compiling/running your program with the `--release` flag? It's explained a bit here: http://crystal-lang.org/docs/using_the_comp…

Not quite. The language allows you to program using duck-typing, in a way. For example if you have a variable "duck" and you assign a Duck to it and invoke "quack" on it, given a D…

There's support for cross-compilation, it's even documented: http://crystal-lang.org/docs/syntax_and_semantics/cross-comp... But porting stuff to Windows is far from trivial: there…

In Crystal we also have sum: http://crystal-lang.org/api/

I don't think it's a big deal, benchmarks are just toy programs. Once you learn about the `--release` flag you never forget it for production-ready code. C has -O3, why isn't it th…

Yeah, we need to document this better, sorry!