32 lines
982 B
Rust
32 lines
982 B
Rust
// Copyright 2014 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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// Ensures that single-word environments work right in unboxed closures.
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// These take a different path in codegen.
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fn a<F:Fn(isize, isize) -> isize>(f: F) -> isize {
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f(1, 2)
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}
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fn b<F:FnMut(isize, isize) -> isize>(mut f: F) -> isize {
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f(3, 4)
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}
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fn c<F:FnOnce(isize, isize) -> isize>(f: F) -> isize {
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f(5, 6)
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}
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fn main() {
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let z = 10;
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assert_eq!(a(move |x: isize, y| x + y + z), 13);
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assert_eq!(b(move |x: isize, y| x + y + z), 17);
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assert_eq!(c(move |x: isize, y| x + y + z), 21);
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}
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