crystal-lang/crystal

The Crystal programming language | http://crystal-lang.org | Fund Crystal's development: http://is.gd/X7PRtI | Docs: http://crystal-lang.org/docs/ | API: http://crystal-lang.org/api/

George Dietrich

@Blacksmoke16

that's what bash is for :)

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<alekhine> lol you're right. or python i guess

George Dietrich

@Blacksmoke16

python wouldn't help much either if all you want to do is like

cd /some/dir
cp /some/thing.txt ./
some command --foo

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<alekhine> Bash is still very good at file manipulation. Though I use fish :⁠)

George Dietrich

@Blacksmoke16

by bash i more so kinda meant .sh file

or whatever shell you use yea

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<alekhine> Yeah, Shell languages

<alekhine> Well that answers my questions, I'll go install crystal

George Dietrich

@Blacksmoke16

:thumbsup:

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<alekhine> night

George Dietrich

@Blacksmoke16

https://forum.crystal-lang.org/t/why-to-learn-crystal/3445

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<ua_> I kinda wonder why he's set on compiled language

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<kevinsjoberg> Is this a bug or not? https://play.crystal-lang.org/#/r/bjk8 I know @Blacksmoke16 was playing around with this a bit yesterday, but I don't know for a fact if its a bug or a limitation. Would like to try fix it if its a bug.

<kevinsjoberg> Perhaps I should fail it as a bug in upstream and see what the outcome is?

<kevinsjoberg> file*

Kirk Haines

@wyhaines

Your add_b does work. What fails is actually the puts.

Add a macro line to show you B after you assign to it:

    {%
      B[key] = { type: @type.name, value: value }
      pp B
    %}

You will see that data is being added.

What is failing is the non-macro access to either A::B or C::B.

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<kevinsjoberg> @wyhaines, sorry I should have been clear. Yes, the macro works. I know the puts is the culprit, but I'd still expect it to work.

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<kevinsjoberg> Why is it breaking upon trying to access the constant at runtime?

Kirk Haines

@wyhaines

The error is being thrown from the c rystal_sigfault_handler, and my guess right now is that there is some sort of loop that is entered in the compiled code, but not the interpreted code, which is why there is the behavior difference.

I'd be curious to see if it still fails on the current crystal main branch, since at least some of that code has changed a little.

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<mfiano> Hello :⁠)

<mfiano> New user here. How long has crystal-lang.org been down?

<jhass[m]> Seems up for me :⁠)

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<mfiano> Odd. It is down for me both at home and at work. Secure connection failed due to PR_END_OF_FILE_ERROR

<jhass[m]> maybe some common "security software"?

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<kevinsjoberg> Up for me as well.

<mfiano> I don't have any such thing, but finally seems to work now and I did nothing.

<mfiano> Sorry for the noise :⁠)

Taupiqueur

@alexherbo2

do you have an example of use for iterator of?

https://crystal-lang.org/api/1.0.0/Iterator.html#of(element:T)-class-method

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<jhass[m]> The single element overload specifically?

Quinton Miller

@HertzDevil

it seems to happen because you are adding a MacroId to that NamedTuple

this also breaks for example

A = [] of Int32
{% A << "1".id %}
A

Unhandled exception: can't execute `__temp_499[0] = 1` at eval:1:5: `1` has no type (Exception)

Nikolaii Lodenos

@lodenos

I’ve a little question about Int128 how work’s behing that’s use SSE4 or not ?

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<kevinsjoberg> @HertzDevil should it break though?

<kevinsjoberg> Looking at the compiler code, it’s clear MacroId is the culprit, but I still think it should be able to deduce the type here.

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<mfiano> Curious, why does crystal not have traditional block-level symbol table semantics?

George Dietrich

@Blacksmoke16

:shrug: maybe a better question for the forums?

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<terminalpusher> where can I watch the recorded video of the Crystal 1.0 conference?

George Dietrich

@Blacksmoke16

they're not released publicly yet

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<terminalpusher> alright then I will wait for longer

Benjamin Wade

@RespiteSage

Is there any way to use a module with macro included to include an inner class in a generic class which has an instance variable of the type of that generic class?

That was complicated to write, so here's an example: https://carc.in/#/r/bjqq

George Dietrich

@Blacksmoke16

@RespiteSage https://carc.in/#/r/bjra nice

i feel like what you have should work as i would think it would pick up T from the including type