e593c3b893
Most of the Rust community agrees that the vec! macro is clearer when called using square brackets [] instead of regular brackets (). Most of these ocurrences are from before macros allowed using different types of brackets. There is one left unchanged in a pretty-print test, as the pretty printer still wants it to have regular brackets.
40 lines
1.2 KiB
Rust
40 lines
1.2 KiB
Rust
// Copyright 2015 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.
|
|
|
|
// Various unsuccessful attempts to put the unboxed closure kind
|
|
// inference into an awkward position that might require fixed point
|
|
// iteration (basically where inferring the kind of a closure `c`
|
|
// would require knowing the kind of `c`). I currently believe this is
|
|
// impossible.
|
|
|
|
fn a() {
|
|
let mut closure0 = None;
|
|
let vec = vec![1, 2, 3];
|
|
|
|
loop {
|
|
{
|
|
let closure1 = || {
|
|
match closure0.take() {
|
|
Some(c) => {
|
|
return c();
|
|
//~^ ERROR the type of this value must be known in this context
|
|
}
|
|
None => { }
|
|
}
|
|
};
|
|
closure1();
|
|
}
|
|
|
|
closure0 = || vec;
|
|
}
|
|
}
|
|
|
|
fn main() { }
|