rust/tests/ui/issues/issue-16256.rs

//@ run-pass
//@ pretty-expanded FIXME #23616

fn main() {
    let mut buf = Vec::new();
    |c: u8| buf.push(c); //~ WARN unused closure that must be used
}
Add `// run-pass` annotations to all the tests under `ui/run-pass/`. (I may have accidentally added it to some auxilliary crates as well; my emacs-macro-based methodology was pretty crude.) 2018-08-30 07:18:55 -05:00			`//@ run-pass`
rustdoc: Replace no-pretty-expanded with pretty-expanded Now that features must be declared expanded source often does not compile. This adds 'pretty-expanded' to a bunch of test cases that still work. 2015-03-22 15:13:15 -05:00			`//@ pretty-expanded FIXME #23616`

Add tests for a few fixed issues 2014-10-16 14:40:21 -05:00			`fn main() {`
			`let mut buf = Vec::new();`
Make closures and generators a must use types Warn about unused expressions with closure or generator type. This follows existing precedence of must use annotations present on `FnOnce`, `FnMut`, `Fn` traits, which already indirectly apply to closures in some cases, e.g.,: ```rust fn f() -> impl FnOnce() { \|\| {} } fn main() { // an existing warning: unused implementer of `std::ops::FnOnce` that must be used: f(); // a new warning: unused closure that must be used: \|\| {}; } ``` 2020-07-27 19:00:00 -05:00			`\|c: u8\| buf.push(c); //~ WARN unused closure that must be used`
Add tests for a few fixed issues 2014-10-16 14:40:21 -05:00			`}`