Vala

Vala is an open source programming language created in 2006.

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18Years Old

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Vala is an object-oriented programming language with a self-hosting compiler that generates C code and uses the GObject system. Vala is syntactically similar to C# and includes several features such as: anonymous functions, signals, properties, generics, assisted memory management, exception handling, type inference, and foreach statements. Its developers Jürg Billeter and Raffaele Sandrini aim to bring these features to the plain C runtime with little overhead and no special runtime support by targeting the GObject object system. Read more on Wikipedia...

Vala website
Vala Wikipedia page
Vala docs
There are at least 3,465 Vala repos on GitHub
file extensions for Vala include vala and vapi
Vala compiles to C
Vala on Twitter
The Google BigQuery Public Dataset GitHub snapshot shows 2k users using Vala in 2k repos on GitHub
Explore Vala snippets on Rosetta Code
Pygments supports syntax highlighting for Vala
GitHub supports syntax highlighting for Vala
See also: (13 related languages)C, C#, D, Java, Boo, Emacs, Sublime Text, TextMate, Eclipse, Vim, Visual Studio Code, Genie, Python
Read more about Vala on the web: 1. 2.

Example from the web:

int main (string[] args) {
   var app = new Gtk.Application(
     "com.example.App",
     ApplicationFlags.FLAGS_NONE
   );
   
   app.activate.connect(() => {
     var win = new Gtk.ApplicationWindow(app);
 
     var btn = new Gtk.Button.with_label("Hello World");
     btn.click.connect(win.close);
 
     win.child = btn;
     win.present();
   })
   return app.run(args);
 }

Example from Riju:

void main () {
    print("Hello, world!\n");
}

Example from hello-world:

static void main (string[] args)
{
	stdout.printf ("Hello World\n");
}

Example from Wikipedia:

void main () {
  print("Hello, world!\n");
}

Feature	Supported	Token	Example
Strings	✓	"	"Hello world"
Print() Debugging	✓	stdout.printf
Comments	✓		// A comment
Line Comments	✓	//	// A comment
Semantic Indentation	X

Vala - Programming language

Language features