Generator functions/Continuations.

[sadmac7000]

Python has a feature like this and I think it'd be good for Ceylon.

Basically you can do something like this:

{Integer *} myGenerator(Integer start) {
    variable Integer k = start;

    while(k < 10) {
        yield k++;
        print("Yeah!");
    }
}

shared void
run() {
    for (k in myGenerator(7))  {
        print(k);
    }
}

This will print:

7
Yeah!
8
Yeah!
9
Yeah!

[quintesse]

There was already some discussion about this in #312, #1168 and #1174