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| author | Michael Goulet <michael@errs.io> | 2023-08-11 03:13:35 +0000 |
|---|---|---|
| committer | Michael Goulet <michael@errs.io> | 2023-08-11 03:15:41 +0000 |
| commit | bbe7a96bec86eead5b6411856b92cfa012947195 (patch) | |
| tree | 20f481cff4d6cb596c2c27e23341bf3e4b212f42 /tests/ui/impl-trait | |
| parent | a9b2c6a0ce700ee6d1cdcab3f3c1f7997ae726d1 (diff) | |
| download | rust-bbe7a96bec86eead5b6411856b92cfa012947195.tar.gz rust-bbe7a96bec86eead5b6411856b92cfa012947195.zip | |
Record binder for bare trait object in LifetimeCollectVisitor
Diffstat (limited to 'tests/ui/impl-trait')
| -rw-r--r-- | tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.rs | 22 | ||||
| -rw-r--r-- | tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.stderr | 42 |
2 files changed, 64 insertions, 0 deletions
diff --git a/tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.rs b/tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.rs new file mode 100644 index 00000000000..57d68849251 --- /dev/null +++ b/tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.rs @@ -0,0 +1,22 @@ +// edition:2015 +// check-pass +// issue: 114664 + +fn ice() -> impl AsRef<Fn(&())> { + //~^ WARN trait objects without an explicit `dyn` are deprecated + //~| WARN trait objects without an explicit `dyn` are deprecated + //~| WARN trait objects without an explicit `dyn` are deprecated + //~| WARN this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! + //~| WARN this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! + //~| WARN this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! + Foo +} + +struct Foo; +impl AsRef<dyn Fn(&())> for Foo { + fn as_ref(&self) -> &(dyn for<'a> Fn(&'a ()) + 'static) { + todo!() + } +} + +pub fn main() {} diff --git a/tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.stderr b/tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.stderr new file mode 100644 index 00000000000..fad0b812d43 --- /dev/null +++ b/tests/ui/impl-trait/fresh-lifetime-from-bare-trait-obj-114664.stderr @@ -0,0 +1,42 @@ +warning: trait objects without an explicit `dyn` are deprecated + --> $DIR/fresh-lifetime-from-bare-trait-obj-114664.rs:5:24 + | +LL | fn ice() -> impl AsRef<Fn(&())> { + | ^^^^^^^ + | + = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! + = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html> + = note: `#[warn(bare_trait_objects)]` on by default +help: use `dyn` + | +LL | fn ice() -> impl AsRef<dyn Fn(&())> { + | +++ + +warning: trait objects without an explicit `dyn` are deprecated + --> $DIR/fresh-lifetime-from-bare-trait-obj-114664.rs:5:24 + | +LL | fn ice() -> impl AsRef<Fn(&())> { + | ^^^^^^^ + | + = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! + = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html> +help: use `dyn` + | +LL | fn ice() -> impl AsRef<dyn Fn(&())> { + | +++ + +warning: trait objects without an explicit `dyn` are deprecated + --> $DIR/fresh-lifetime-from-bare-trait-obj-114664.rs:5:24 + | +LL | fn ice() -> impl AsRef<Fn(&())> { + | ^^^^^^^ + | + = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! + = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html> +help: use `dyn` + | +LL | fn ice() -> impl AsRef<dyn Fn(&())> { + | +++ + +warning: 3 warnings emitted + |