32 lines
1.1 KiB
Rust
32 lines
1.1 KiB
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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// ignore-tidy-linelength
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// revisions: ast mir
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//[mir]compile-flags: -Z borrowck=mir
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#![feature(unboxed_closures)]
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use std::io::Read;
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fn to_fn_once<A,F:FnOnce<A>>(f: F) -> F { f }
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fn main() {
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let x = 1;
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to_fn_once(move|| { x = 2; });
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//[ast]~^ ERROR: cannot assign to immutable captured outer variable
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//[mir]~^^ ERROR: cannot assign to `x`, as it is not declared as mutable
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let s = std::io::stdin();
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to_fn_once(move|| { s.read_to_end(&mut Vec::new()); });
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//[ast]~^ ERROR: cannot borrow immutable captured outer variable
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//[mir]~^^ ERROR: cannot borrow `s` as mutable, as it is not declared as mutable
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}
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