rust/tests/ui/trait-objects/trait-object-lifetime-conversion-47638.rs

// https://github.com/rust-lang/rust/issues/47638
//@ run-pass
#![allow(unused_variables)]
fn id<'c, 'b>(f: &'c &'b dyn Fn(&i32)) -> &'c &'b dyn Fn(&'static i32) {
    f
}

fn main() {
    let f: &dyn Fn(&i32) = &|x| {};
    id(&f);
}
Rehome tests/ui/issues/ tests [3/?] 2025-07-13 16:25:27 -04:00			`// https://github.com/rust-lang/rust/issues/47638`
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 14:18:55 +02:00			`//@ run-pass`
Add `#![allow(..)]` as necessary to get re-migrated run-pass tests compiling with clean stderr again. Most were added mechanically. 2018-09-25 23:51:35 +02:00			`#![allow(unused_variables)]`
Update run-pass test suite to use dyn 2019-05-28 14:47:21 -04:00			`fn id<'c, 'b>(f: &'c &'b dyn Fn(&i32)) -> &'c &'b dyn Fn(&'static i32) {`
rustc_trans: keep LLVM types for trait objects anonymous. 2018-01-31 00:23:25 +02:00			`f`
			`}`

			`fn main() {`
Update run-pass test suite to use dyn 2019-05-28 14:47:21 -04:00			`let f: &dyn Fn(&i32) = &\|x\| {};`
rustc_trans: keep LLVM types for trait objects anonymous. 2018-01-31 00:23:25 +02:00			`id(&f);`
			`}`