tests/objects/bug641828.vala


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public interface Bar : GLib.Object {
	public signal int bar (int i);
}

public class Foo : GLib.Object, Bar {
}

void main () {
	var f = new Foo ();

	f.bar.connect (i => i + 12);

	var res = f.bar (30);
	assert (res == 42);
}