diff options
7 files changed, 77 insertions, 43 deletions
diff --git a/src/librustc_infer/infer/error_reporting/nice_region_error/static_impl_trait.rs b/src/librustc_infer/infer/error_reporting/nice_region_error/static_impl_trait.rs index 86f310eb71d..74267a8dec0 100644 --- a/src/librustc_infer/infer/error_reporting/nice_region_error/static_impl_trait.rs +++ b/src/librustc_infer/infer/error_reporting/nice_region_error/static_impl_trait.rs @@ -77,18 +77,12 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { sup_origin.span(), "...is captured here, requiring it to live as long as `'static`", ); - } else if sup_origin.span() <= return_sp { + } else { err.span_label(sup_origin.span(), "...is captured here..."); - err.span_label( + err.span_note( return_sp, "...and is required to live as long as `'static` here", ); - } else { - err.span_label( - return_sp, - "...is required to live as long as `'static` here...", - ); - err.span_label(sup_origin.span(), "...and is captured here"); } } else { err.span_label( diff --git a/src/test/ui/async-await/issues/issue-62097.stderr b/src/test/ui/async-await/issues/issue-62097.stderr index e9f155c6ced..ff7007dd30b 100644 --- a/src/test/ui/async-await/issues/issue-62097.stderr +++ b/src/test/ui/async-await/issues/issue-62097.stderr @@ -6,8 +6,12 @@ LL | pub async fn run_dummy_fn(&self) { | | | this data with an anonymous lifetime `'_`... | ...is captured here... + | +note: ...and is required to live as long as `'static` here + --> $DIR/issue-62097.rs:13:9 + | LL | foo(|| self.bar()).await; - | --- ...and is required to live as long as `'static` here + | ^^^ error: aborting due to previous error diff --git a/src/test/ui/impl-trait/must_outlive_least_region_or_bound.stderr b/src/test/ui/impl-trait/must_outlive_least_region_or_bound.stderr index a9fa0e93fed..698464b4971 100644 --- a/src/test/ui/impl-trait/must_outlive_least_region_or_bound.stderr +++ b/src/test/ui/impl-trait/must_outlive_least_region_or_bound.stderr @@ -2,11 +2,15 @@ error[E0758]: cannot infer an appropriate lifetime --> $DIR/must_outlive_least_region_or_bound.rs:3:35 | LL | fn elided(x: &i32) -> impl Copy { x } - | ---- --------- ^ ...and is captured here - | | | - | | ...is required to live as long as `'static` here... + | ---- ^ ...is captured here... + | | | this data with an anonymous lifetime `'_`... | +note: ...and is required to live as long as `'static` here + --> $DIR/must_outlive_least_region_or_bound.rs:3:23 + | +LL | fn elided(x: &i32) -> impl Copy { x } + | ^^^^^^^^^ help: to declare that the `impl Trait` captures data from argument `x`, you can add an explicit `'_` lifetime bound | LL | fn elided(x: &i32) -> impl Copy + '_ { x } @@ -16,11 +20,15 @@ error[E0758]: cannot infer an appropriate lifetime --> $DIR/must_outlive_least_region_or_bound.rs:6:44 | LL | fn explicit<'a>(x: &'a i32) -> impl Copy { x } - | ------- --------- ^ ...and is captured here - | | | - | | ...is required to live as long as `'static` here... + | ------- ^ ...is captured here... + | | | this data with lifetime `'a`... | +note: ...and is required to live as long as `'static` here + --> $DIR/must_outlive_least_region_or_bound.rs:6:32 + | +LL | fn explicit<'a>(x: &'a i32) -> impl Copy { x } + | ^^^^^^^^^ help: to declare that the `impl Trait` captures data from argument `x`, you can add an explicit `'a` lifetime bound | LL | fn explicit<'a>(x: &'a i32) -> impl Copy + 'a { x } @@ -30,11 +38,15 @@ error[E0758]: cannot infer an appropriate lifetime --> $DIR/must_outlive_least_region_or_bound.rs:9:46 | LL | fn elided2(x: &i32) -> impl Copy + 'static { x } - | ---- ------------------- ^ ...and is captured here - | | | - | | ...is required to live as long as `'static` here... + | ---- ^ ...is captured here... + | | | this data with an anonymous lifetime `'_`... | +note: ...and is required to live as long as `'static` here + --> $DIR/must_outlive_least_region_or_bound.rs:9:24 + | +LL | fn elided2(x: &i32) -> impl Copy + 'static { x } + | ^^^^^^^^^^^^^^^^^^^ help: consider changing the `impl Trait`'s explicit `'static` bound to argument `x` | LL | fn elided2(x: &i32) -> impl Copy + '_ { x } @@ -48,11 +60,15 @@ error[E0758]: cannot infer an appropriate lifetime --> $DIR/must_outlive_least_region_or_bound.rs:12:55 | LL | fn explicit2<'a>(x: &'a i32) -> impl Copy + 'static { x } - | ------- ------------------- ^ ...and is captured here - | | | - | | ...is required to live as long as `'static` here... + | ------- ^ ...is captured here... + | | | this data with lifetime `'a`... | +note: ...and is required to live as long as `'static` here + --> $DIR/must_outlive_least_region_or_bound.rs:12:33 + | +LL | fn explicit2<'a>(x: &'a i32) -> impl Copy + 'static { x } + | ^^^^^^^^^^^^^^^^^^^ help: consider changing the `impl Trait`'s explicit `'static` bound to argument `x` | LL | fn explicit2<'a>(x: &'a i32) -> impl Copy + 'a { x } @@ -74,11 +90,13 @@ error[E0758]: cannot infer an appropriate lifetime --> $DIR/must_outlive_least_region_or_bound.rs:33:69 | LL | fn with_bound<'a>(x: &'a i32) -> impl LifetimeTrait<'a> + 'static { x } - | ------- -------------------------------- ^ ...and is captured here - | | | - | | ...is required to live as long as `'static` here... - | this data with lifetime `'a`... + | ------- this data with lifetime `'a`... ^ ...is captured here... + | +note: ...and is required to live as long as `'static` here + --> $DIR/must_outlive_least_region_or_bound.rs:33:34 | +LL | fn with_bound<'a>(x: &'a i32) -> impl LifetimeTrait<'a> + 'static { x } + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider changing the `impl Trait`'s explicit `'static` bound to argument `x` | LL | fn with_bound<'a>(x: &'a i32) -> impl LifetimeTrait<'a> + 'a { x } diff --git a/src/test/ui/impl-trait/static-return-lifetime-infered.stderr b/src/test/ui/impl-trait/static-return-lifetime-infered.stderr index 6681eaa909e..bcc46785c59 100644 --- a/src/test/ui/impl-trait/static-return-lifetime-infered.stderr +++ b/src/test/ui/impl-trait/static-return-lifetime-infered.stderr @@ -2,14 +2,17 @@ error[E0758]: cannot infer an appropriate lifetime --> $DIR/static-return-lifetime-infered.rs:7:16 | LL | fn iter_values_anon(&self) -> impl Iterator<Item=u32> { - | ----- ----------------------- ...is required to live as long as `'static` here... - | | - | this data with an anonymous lifetime `'_`... + | ----- this data with an anonymous lifetime `'_`... LL | self.x.iter().map(|a| a.0) | ------ ^^^^ | | - | ...and is captured here + | ...is captured here... | +note: ...and is required to live as long as `'static` here + --> $DIR/static-return-lifetime-infered.rs:6:35 + | +LL | fn iter_values_anon(&self) -> impl Iterator<Item=u32> { + | ^^^^^^^^^^^^^^^^^^^^^^^ help: to declare that the `impl Trait` captures data from argument `self`, you can add an explicit `'_` lifetime bound | LL | fn iter_values_anon(&self) -> impl Iterator<Item=u32> + '_ { @@ -19,14 +22,17 @@ error[E0758]: cannot infer an appropriate lifetime --> $DIR/static-return-lifetime-infered.rs:11:16 | LL | fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> { - | -------- ----------------------- ...is required to live as long as `'static` here... - | | - | this data with lifetime `'a`... + | -------- this data with lifetime `'a`... LL | self.x.iter().map(|a| a.0) | ------ ^^^^ | | - | ...and is captured here + | ...is captured here... | +note: ...and is required to live as long as `'static` here + --> $DIR/static-return-lifetime-infered.rs:10:37 + | +LL | fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> { + | ^^^^^^^^^^^^^^^^^^^^^^^ help: to declare that the `impl Trait` captures data from argument `self`, you can add an explicit `'a` lifetime bound | LL | fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> + 'a { diff --git a/src/test/ui/self/arbitrary_self_types_pin_lifetime_impl_trait-async.stderr b/src/test/ui/self/arbitrary_self_types_pin_lifetime_impl_trait-async.stderr index 365e38515b1..2ffbf6e0815 100644 --- a/src/test/ui/self/arbitrary_self_types_pin_lifetime_impl_trait-async.stderr +++ b/src/test/ui/self/arbitrary_self_types_pin_lifetime_impl_trait-async.stderr @@ -2,10 +2,15 @@ error[E0758]: cannot infer an appropriate lifetime --> $DIR/arbitrary_self_types_pin_lifetime_impl_trait-async.rs:8:16 | LL | async fn f(self: Pin<&Self>) -> impl Clone { self } - | ^^^^ ---------- ---------- ...and is required to live as long as `'static` here - | | | - | | this data with an anonymous lifetime `'_`... + | ^^^^ ---------- this data with an anonymous lifetime `'_`... + | | | ...is captured here... + | +note: ...and is required to live as long as `'static` here + --> $DIR/arbitrary_self_types_pin_lifetime_impl_trait-async.rs:8:37 + | +LL | async fn f(self: Pin<&Self>) -> impl Clone { self } + | ^^^^^^^^^^ error: aborting due to previous error diff --git a/src/test/ui/self/arbitrary_self_types_pin_lifetime_impl_trait.stderr b/src/test/ui/self/arbitrary_self_types_pin_lifetime_impl_trait.stderr index bd3f3efad82..2da7bcf543d 100644 --- a/src/test/ui/self/arbitrary_self_types_pin_lifetime_impl_trait.stderr +++ b/src/test/ui/self/arbitrary_self_types_pin_lifetime_impl_trait.stderr @@ -2,11 +2,15 @@ error[E0758]: cannot infer an appropriate lifetime --> $DIR/arbitrary_self_types_pin_lifetime_impl_trait.rs:6:44 | LL | fn f(self: Pin<&Self>) -> impl Clone { self } - | ---------- ---------- ^^^^ ...and is captured here - | | | - | | ...is required to live as long as `'static` here... + | ---------- ^^^^ ...is captured here... + | | | this data with an anonymous lifetime `'_`... | +note: ...and is required to live as long as `'static` here + --> $DIR/arbitrary_self_types_pin_lifetime_impl_trait.rs:6:31 + | +LL | fn f(self: Pin<&Self>) -> impl Clone { self } + | ^^^^^^^^^^ help: to declare that the `impl Trait` captures data from argument `self`, you can add an explicit `'_` lifetime bound | LL | fn f(self: Pin<&Self>) -> impl Clone + '_ { self } diff --git a/src/test/ui/suggestions/lifetimes/missing-lifetimes-in-signature.stderr b/src/test/ui/suggestions/lifetimes/missing-lifetimes-in-signature.stderr index d96a5f961bd..95d905af050 100644 --- a/src/test/ui/suggestions/lifetimes/missing-lifetimes-in-signature.stderr +++ b/src/test/ui/suggestions/lifetimes/missing-lifetimes-in-signature.stderr @@ -10,15 +10,18 @@ error[E0758]: cannot infer an appropriate lifetime --> $DIR/missing-lifetimes-in-signature.rs:19:5 | LL | fn foo<G, T>(g: G, dest: &mut T) -> impl FnOnce() - | ------ ------------- ...is required to live as long as `'static` here... - | | - | this data with an anonymous lifetime `'_`... + | ------ this data with an anonymous lifetime `'_`... ... LL | / move || { LL | | *dest = g.get(); LL | | } - | |_____^ ...and is captured here + | |_____^ ...is captured here... | +note: ...and is required to live as long as `'static` here + --> $DIR/missing-lifetimes-in-signature.rs:15:37 + | +LL | fn foo<G, T>(g: G, dest: &mut T) -> impl FnOnce() + | ^^^^^^^^^^^^^ help: to declare that the `impl Trait` captures data from argument `dest`, you can add an explicit `'_` lifetime bound | LL | fn foo<G, T>(g: G, dest: &mut T) -> impl FnOnce() + '_ |