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#vala

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Vala

GSoC update! @AlleyCH is diving into the Vala compiler to bring native JSON (de)serialization support.

She has been exploring the full compilation pipeline and is working on a new valajsonmodule.vala. Adding native support will make it much easier for Vala developers to work with structured data out of the box—less boilerplate, better developer experience. ✨

Read the full blog post:
alleych.github.io/gnome/compil

Hello World :) · Compiler KnowledgeIntro
#vala#compiler
Continued thread
Vala

When using `requires` and `ensures` together, your method provides a complete guarantee or “contract” 🤝

```vala
double calculate_average(int[] values)
requires (values != null)
requires (values.length > 0)
ensures (result >= get_minimum(values) && result <= get_maximum(values))
{
int sum = 0;
foreach (int value in values) {
sum += value;
}
return (double)sum / values.length;
}
```

#Vala#Programming
Continued thread
Vala

Postconditions specify what must be true *after* a method executes. They represent the guarantees that the method makes about its results:
```vala
double normalize_percentage(double value)
ensures (result >= 0.0 && result <= 1.0)
{
return double.min(1.0, double.max(0.0, value));
}
```

The special variable `result` is the return value of the method 🧠

#Vala#Programming
Continued thread
Vala

Preconditions specify what must be true before a method executes:

```vala
double calculate_square_root(double value)
requires (value >= 0.0)
{
return Math.sqrt(value);
}
```

And you can add as many as you like!

```vala
int get_element(int[] array, int index)
requires (array != null)
requires (index >= 0)
requires (index < array.length)
{
return array[index];
}
```

#Vala#Programming
Vala

Check this out: Vala has “Contract Programming” features that make it super simple to define preconditions and post-conditions for methods! You can add `requires ()` and `ensures ()` clauses to any method to automatically return null and avoid garbage input or output 🧵 👇

#ProTip#Vala#Programming
Glitchy Pixel

Despite my body aching and being sleepy all over, I managed to work out a small #sdl3 #Vala bindings update.

I have now implemented the SDL3_gfx library! This is a special small library that implements:

* Some special primitive drawing routines, like circles, pies, beziers, etc.
* A simple framerate manager.
* Some algorithm filters (I still need to understand how these work to make proper samples).

But in any case there are samples for framerate and primitives. Enjoy!

#gamedev#sdl
Vala

We now have more than 1000 followers! A big thank you to those who joined us! We are going to achieve more and more, the project is going very well, the next stable release will have _a lot_! Happy #vala coding to everyone out there on their own projects, we love to support you and will continue to do so!

BUT, I now call here for help to manage this Mastodon account. I, @lw64 have managed everything so far, but I don't have time anymore. I will mentor everyone who wants to contribute, its easy!

Lorenz

Doing marketing on #Mastodon is so fucking much work. In almost a year, I couldn't even double the follower count of @vala_lang (now almost 1k)
And engagement is still not that much. Rarely there are replies to our posts.
We are not a business, we don't want growth growth growth, we just want to build our own small community in the fediverse. Isn't that what it is meant for?
Without a community the project will die. #Vala is an open source project like many others.

I need a break.

Vala

Hello, anyone interested in helping out with this mastodon account?! 😃
Anyone that is a bit active in #Vala can do it! It is really not difficult, and the more people contribute, the smoother it goes!
Social Media is really important for a project like this, so I hope we can continue like this, soon reaching 1k followers!
Whoever is interested can comment here or in discord or matrix!

Glitchy Pixel

So I just moved the #SDL3 #vala vapis to @Codeberg migrating from Github was actually pretty easy!

codeberg.org/edwood-grant/sdl3

I also added a new GPU rotating colored cube example. So this makes the whole thing a bit more complete 😛.

I will probably just make the github repo either a mirror or just leave a message on top pointing the the actual repo in codeberg.

I mean it makes sense to have this project outside of big tech. I feel that, at least for me, is important.

#gamedev#sdl
Jeff Fortin T. (風の庭園のNekohayo)

Can I get a @vala_lang FLOSS hacker interested in this fine newcomers-difficulty-level UX issue to solve in #gitg?

I tried starting to fix it myself a year ago and couldn't figure out how to get past my initial attempt to check the horizontal vs vertical orientation of the layout. I could try again (if I'm desperate enough), but would need a pair programming session with a #Vala enthusiast… or such an enthusiast could probably solve it by themselves in half an hour: gitlab.gnome.org/GNOME/gitg/-/

GitLabAbility to turn off unneeded columns in the history view (or automatically turn off non-essential ones when width is constrained) to reduce visual overload and horizontal scrolling (#424) · Issues · GNOME / gitg · GitLabDue to commit 6593323c, version 45.alpha from flatpak...
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