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// run-rustfix
#![deny(rust_2021_incompatible_closure_captures)]
//~^ NOTE lint level is defined here
fn main() {
struct Foo(u32);
impl Drop for Foo {
fn drop(&mut self) {
println!("dropped {}", self.0);
}
}
let f0 = Foo(0);
let f1 = Foo(1);
let c0 = move || {
let _ = &f0;
//~^ ERROR changes to closure capture in Rust 2021 will affect drop order
//~| NOTE for more information
let _ = f0;
//~^ NOTE in Rust 2018, this causes the closure to capture `f0`, but in Rust 2021, it has no effect
};
let c1 = move || {
let _ = &f1;
};
println!("dropping 0");
drop(c0);
println!("dropping 1");
drop(c1);
println!("dropped all");
}
//~^ NOTE in Rust 2018, `f0` is dropped here along with the closure, but in Rust 2021 `f0` is not part of the closure
|
