Re: [Vala] Generics and Contract Programming
Hi Chris, 1) For assertations, try this: [indent=4] def static foo (ref args : array of string, opts : T, ...) of T requires (args.length 1) // do something init print hello world 2) For generics, try this: [indent=4] class Wrapper of G : GLib.Object data : private G def set_data(data : G) this.data = data def get_data() : G return this.data init var wrapper = new Wrapper of string wrapper.set_data(test) var data = wrapper.get_data() Regards, Nicolas. ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
Re: [Vala] Generics and Contract Programming
Ah ok, it was the of T that I wasn't sure how to do. Thank you, Chris On 06/24/11 13:48, Nicolas wrote: Hi Chris, 1) For assertations, try this: [indent=4] def static foo (ref args : array of string, opts : T, ...) of T requires (args.length 1) // do something init print hello world 2) For generics, try this: [indent=4] class Wrapper of G : GLib.Object data : private G def set_data(data : G) this.data = data def get_data() : G return this.data init var wrapper = new Wrapper of string wrapper.set_data(test) var data = wrapper.get_data() Regards, Nicolas. ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
Re: [Vala] [Genie] OptionContext not setting reference
Hello again ! The problem in your program is: args = args[1:args.length] The first arg is not taken by the program, so just delete this unecessary line, and it works ! Regards, Nicolas. ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
Re: [Vala] [Genie] OptionContext not setting reference
Thanks, I had hoped that args = args[1:args.length] was an elegant way to remove an argument from the array that is of no use to my program. It seems that line didn't do what I expected. Cheers, Chris On 06/24/11 15:58, Nicolas wrote: Hello again ! The problem in your program is: args = args[1:args.length] The first arg is not taken by the program, so just delete this unecessary line, and it works ! Regards, Nicolas. ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
Re: [Vala] opengl and gtk+-3.0
Is there any way right now to open a GL context up inside of a GTK+3 window using vala? I've been trying to automatically parse the headers glext.h and glxext.h so I could use OpenGL functions that aren't available in the current gl.vapi (anything beyond OpenGL 1.3). So far, I've managed to produce bindings for the functions and the constants defined in both headers. I'm not sure what to do with the types, though. Is there anywhere I can go to find out what all the [IntegerType (rank=9)] stuff means, and how I decide to use rank=9 versus rank=7 or 6, or whatever number strikes my fancy? I've attached my progress so far. There are two python files; each of them parse the header they are named after. Two directories need to be present before either script runs: intermediates and xintermediates. To run the script, type: python vala_glext_header_parser.py debug The scripts produces 4 things: 1. and 2.) A constants.vapi and functions.vapi file either in intermediates or xintermediates, depending on whether the parser is for GL or GLX. 3.) A debug log 4.) A list of the types used in each function printed to the command line. This is so I have an easy-to-reference list of the types used in the .vapi that need binding. On Mon Jun 5 2011, august wrote: Are there .vapi's that work with openGL and GTK+-3.0? any examples? thanks -august. ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list -- --- http://aug.ment.org signature.asc Description: Digital signature ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
[Vala] [Genie] Anonymous functions
Hey,
I'm starting to get the hang of Genie programming, there's still a few
things I can't see how to do. How would I create an anonymous function?
e.g. What's the Genie equivalent to:
delegate int Comparator(int a, int b);
void my_sorting_algorithm(int[] data, Comparator compare) {
// ... 'compare' is called somewhere in here ...
}
void main() {
int[] data = { 3, 9, 2, 7, 5 };
// An anonymous method is passed as the second argument:
my_sorting_algorithm(data, (a, b) = {
if (a b) return -1;
if (a b) return 1;
return 0;
});
}
Regards,
Chris
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[Vala] [Genie] Anonymous functions
Chris, I'm not sure genie support closure, if someone can confirm... For the delegate, try something like this: [indent=4] delegate DelegateType (a : int) : bool def f1 (a:int) : bool print testing delegate value %d, a return true def f2 (d:DelegateType, a:int) var c = d (a) init f2 (f1, 5) Regards, Nicolas. ___ vala-list mailing list vala-list@gnome.org http://mail.gnome.org/mailman/listinfo/vala-list
