rust/tests/ui/borrowck/issue-29166.rs
2024-02-16 20:02:50 +00:00

22 lines
496 B
Rust

//@ run-pass
// This test ensures that vec.into_iter does not overconstrain element lifetime.
pub fn main() {
original_report();
revision_1();
revision_2();
}
fn original_report() {
drop(vec![&()].into_iter())
}
fn revision_1() {
// below is what above `vec!` expands into at time of this writing.
drop(<[_]>::into_vec(::std::boxed::Box::new([&()])).into_iter())
}
fn revision_2() {
drop((match (Vec::new(), &()) { (mut v, b) => { v.push(b); v } }).into_iter())
}