29 lines
919 B
Rust
29 lines
919 B
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Test that the call operator autoderefs when calling to an object type.
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#![allow(unknown_features)]
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#![feature(unboxed_closures)]
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use std::ops::FnMut;
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fn make_adder(x: isize) -> Box<FnMut(isize)->isize + 'static> {
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// FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
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Box::new(move |y| { x + y })
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}
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pub fn main() {
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let mut adder = make_adder(3);
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let z = adder(2);
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println!("{}", z);
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assert_eq!(z, 5);
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}
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