rust/src/test/run-pass/block-arg-can-be-followed-by-call.rs

// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

fn f(_: proc()) -> proc(uint) -> uint {
    proc(x: uint) { x }
}

pub fn main() {
    let z = do f {} (22u);
    assert_eq!(z, 22u);
}