Marijn Haverbeke f6e3738b9c Support an alternate for syntax that calls a higher-order function
The last argument of the call must be a block, and the type of this
argument must a function returning bool. `break` and `cont` are
supported in the body of the block, and return `false` or `true` from
the function. When the end of the function is reached, `true` is
implicitly returned.

    for vec::all([1, 2, 3]) {|elt|
        if elt == 2 { break; }
        log(error, elt);
    }

Issue #1619
2012-03-27 09:27:31 +02:00
..
2012-03-26 18:35:18 -07:00
2012-03-26 18:35:18 -07:00
2012-03-26 18:35:18 -07:00