diff options
2 files changed, 28 insertions, 3 deletions
diff --git a/tests/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs b/tests/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs index a776e508907..a9d678c1e6a 100644 --- a/tests/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs +++ b/tests/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs @@ -1,4 +1,4 @@ -// compile-flags -Wrust-2021-incompatible-closure-captures +#![warn(rust_2021_incompatible_closure_captures)] fn main() {} @@ -9,7 +9,7 @@ impl Numberer { //~^ ERROR `async fn` is not permitted in Rust 2015 interval: Duration, //~^ ERROR cannot find type `Duration` in this scope - ) -> Numberer { + ) -> Numberer { //~WARN: changes to closure capture in Rust 2021 Numberer {} } } diff --git a/tests/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.stderr b/tests/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.stderr index 60433e1c284..71e9e7602e8 100644 --- a/tests/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.stderr +++ b/tests/ui/span/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.stderr @@ -18,7 +18,32 @@ help: consider importing this struct LL + use std::time::Duration; | -error: aborting due to 2 previous errors +warning: changes to closure capture in Rust 2021 will affect drop order + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs:12:19 + | +LL | interval: Duration, + | -------- in Rust 2018, this causes the closure to capture `interval`, but in Rust 2021, it has no effect +LL | +LL | ) -> Numberer { + | _________________-_^ + | | | + | | in Rust 2018, `interval` is dropped here along with the closure, but in Rust 2021 `interval` is not part of the closure +LL | | Numberer {} +LL | | } + | |_____^ + | + = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/disjoint-capture-in-closures.html> +note: the lint level is defined here + --> $DIR/drop-location-span-error-rust-2021-incompatible-closure-captures-96258.rs:1:9 + | +LL | #![warn(rust_2021_incompatible_closure_captures)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +help: add a dummy let to cause `interval` to be fully captured + | +LL | ) -> Numberer { let _ = &interval; + | ++++++++++++++++++ + +error: aborting due to 2 previous errors; 1 warning emitted Some errors have detailed explanations: E0412, E0670. For more information about an error, try `rustc --explain E0412`. |