[Vala] Coroutines (was: [ANNOUNCE] Vala 0.5.1 - Compiler for the GObject type system)

[Frederik <scumm_fredo gmx net>]

On Tue, 04 Nov 2008 00:16:33 -0800, Jürg Billeter wrote:

> void foo () yields {
>         message ("hello");
>         yield;
>         message ("world");
> }
>
> void main () {
>         foo.begin ();
>         message ("vala");
>         
>         var loop = new MainLoop (null, false);
>         loop.run ();
> }
>
> This will print the messages in the order "hello" "vala" "world".
> The yield statement in the method foo() schedules the rest of the method
> to be run in an idle handler. The invocation of foo() in main using
> `begin' lets the method return on the first yield instead of waiting for
> it to finish.

This doesen't compile for me:

coroutine.c: In function 'foo':
coroutine.c:26: error: 'data' undeclared (first use in this function)
coroutine.c:26: error: (Each undeclared identifier is reported only once
coroutine.c:26: error: for each function it appears in.)
coroutine.c:28: warning: 'return' with a value, in function returning void
coroutine.c:29: error: case label not within a switch statement
error: cc exited with status 256
Compilation failed: 1 error(s), 0 warning(s)


Has the (experimental) coroutine syntax changed since then? Or is it
broken at the moment?


Thanks and regards,

Frederik