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libstd: Add Fn/FnMut/FnOnce to the prelude.

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Closes #16600.
This commit is contained in:
Patrick Walton 2014-08-19 13:56:38 -07:00
parent 3f5d0b5b6c
commit e0a165ca13
2 changed files with 20 additions and 0 deletions
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1
src/libstd/prelude.rs
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@ -46,6 +46,7 @@
#[doc(no_inline)] pub use ops::{Drop, Deref, DerefMut};
#[doc(no_inline)] pub use ops::{Shl, Shr};
#[doc(no_inline)] pub use ops::{Index, IndexMut};
#[doc(no_inline)] pub use ops::{Fn, FnMut, FnOnce};
#[doc(no_inline)] pub use option::{Option, Some, None};
#[doc(no_inline)] pub use result::{Result, Ok, Err};

19
src/test/run-pass/unboxed-closures-prelude.rs Normal file
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@ -0,0 +1,19 @@
// 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 <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.
// Tests that the reexports of `FnOnce` et al from the prelude work.
#![feature(unboxed_closures, unboxed_closure_sugar)]
fn main() {
let task: Box<|: int| -> int> = box |: x| x;
task.call_once((0i, ));
}