// Copyright 2014 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #![feature(unboxed_closures)] #![feature(box_syntax)] fn needs_fn(x: F) where F: Fn(isize) -> isize {} fn main() { let _: () = (box |_: isize| {}) as Box; //~^ ERROR object-safe //~| ERROR mismatched types //~| expected `()` //~| found `Box` //~| expected () //~| found box let _: () = (box |_: isize, isize| {}) as Box; //~^ ERROR mismatched types //~| expected `()` //~| found `Box` //~| expected () //~| found box let _: () = (box || -> isize unimplemented!()) as Box isize>; //~^ ERROR mismatched types //~| expected `()` //~| found `Box isize>` //~| expected () //~| found box needs_fn(1); //~^ ERROR `core::ops::Fn<(isize,)>` //~| ERROR `core::ops::Fn<(isize,)>` }