rust/src/libstd/thunk.rs
Niko Matsakis cade32acf6 Remove Thunk struct and Invoke trait; change Thunk to be an alias
for `Box<FnBox()>`. I found the alias was still handy because it is
shorter than the fully written type.

This is a [breaking-change]: convert code using `Invoke` to use `FnBox`,
which is usually pretty straight-forward. Code using thunk mostly works
if you change `Thunk::new => Box::new` and `foo.invoke(arg)` to
`foo(arg)`.
2015-04-01 14:41:21 -04:00

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Rust

// 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.
// Because this module is temporary...
#![allow(missing_docs)]
#![unstable(feature = "std_misc")]
use alloc::boxed::{Box, FnBox};
use core::marker::Send;
pub type Thunk<'a, A=(), R=()> =
Box<FnBox<A,Output=R> + Send + 'a>;