diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.rs | 12 | ||||
| -rw-r--r-- | tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.stderr | 44 |
2 files changed, 55 insertions, 1 deletions
diff --git a/tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.rs b/tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.rs index e0b115b0ce4..b50780643f1 100644 --- a/tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.rs +++ b/tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.rs @@ -27,4 +27,16 @@ fn missing<'a, 'captured, 'not_captured, Captured>(x: &'a ()) -> impl Captures<' //~^ ERROR hidden type for } +fn no_params_yet(_: impl Sized, y: &()) -> impl Sized { +//~^ HELP add a `use<...>` bound + y +//~^ ERROR hidden type for +} + +fn yes_params_yet<'a, T>(_: impl Sized, y: &'a ()) -> impl Sized { +//~^ HELP add a `use<...>` bound + y +//~^ ERROR hidden type for +} + fn main() {} diff --git a/tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.stderr b/tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.stderr index 391f16d012e..1007a835894 100644 --- a/tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.stderr +++ b/tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.stderr @@ -62,6 +62,48 @@ help: add a `use<...>` bound to explicitly capture `'a` LL | fn missing<'a, 'captured, 'not_captured, Captured>(x: &'a ()) -> impl Captures<'captured> + use<'captured, 'a, Captured> { | ++++++++++++++++++++++++++++++ -error: aborting due to 4 previous errors +error[E0700]: hidden type for `impl Sized` captures lifetime that does not appear in bounds + --> $DIR/hidden-type-suggestion.rs:32:5 + | +LL | fn no_params_yet(_: impl Sized, y: &()) -> impl Sized { + | --- ---------- opaque type defined here + | | + | hidden type `&()` captures the anonymous lifetime defined here +LL | +LL | y + | ^ + | +note: you could use a `use<...>` bound to explicitly capture `'_`, but argument-position `impl Trait`s are not nameable + --> $DIR/hidden-type-suggestion.rs:30:21 + | +LL | fn no_params_yet(_: impl Sized, y: &()) -> impl Sized { + | ^^^^^^^^^^ +help: add a `use<...>` bound to explicitly capture `'_` after turning all argument-position `impl Trait` into type parameters, noting that this possibly affects the API of this crate + | +LL | fn no_params_yet<T: Sized>(_: T, y: &()) -> impl Sized + use<'_, T> { + | ++++++++++ ~ ++++++++++++ + +error[E0700]: hidden type for `impl Sized` captures lifetime that does not appear in bounds + --> $DIR/hidden-type-suggestion.rs:38:5 + | +LL | fn yes_params_yet<'a, T>(_: impl Sized, y: &'a ()) -> impl Sized { + | -- ---------- opaque type defined here + | | + | hidden type `&'a ()` captures the lifetime `'a` as defined here +LL | +LL | y + | ^ + | +note: you could use a `use<...>` bound to explicitly capture `'a`, but argument-position `impl Trait`s are not nameable + --> $DIR/hidden-type-suggestion.rs:36:29 + | +LL | fn yes_params_yet<'a, T>(_: impl Sized, y: &'a ()) -> impl Sized { + | ^^^^^^^^^^ +help: add a `use<...>` bound to explicitly capture `'a` after turning all argument-position `impl Trait` into type parameters, noting that this possibly affects the API of this crate + | +LL | fn yes_params_yet<'a, T, U: Sized>(_: U, y: &'a ()) -> impl Sized + use<'a, T, U> { + | ++++++++++ ~ +++++++++++++++ + +error: aborting due to 6 previous errors For more information about this error, try `rustc --explain E0700`. |