rust/tests/ui/closures/2229_closure_analysis/migrations/macro.rs

26 lines
562 B
Rust

//@ run-rustfix
// See https://github.com/rust-lang/rust/issues/87955
#![deny(rust_2021_incompatible_closure_captures)]
//~^ NOTE: the lint level is defined here
#[derive(Debug)]
struct Foo(i32);
impl Drop for Foo {
fn drop(&mut self) {
println!("{:?} dropped", self.0);
}
}
fn main() {
let a = (Foo(0), Foo(1));
let _ = || dbg!(a.0);
//~^ ERROR: drop order
//~| NOTE: will only capture `a.0`
//~| NOTE: for more information, see
//~| HELP: add a dummy let to cause `a` to be fully captured
}
//~^ NOTE: dropped here