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