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Bless test fallout

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This commit is contained in:
Michael Goulet 2024-07-12 22:10:29 -04:00
parent eae5b5c6e7
commit 84044cd50f
30 changed files with 124 additions and 186 deletions
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20
compiler/rustc_trait_selection/src/error_reporting/infer/region.rs
View File

@ -17,8 +17,8 @@ use rustc_span::{BytePos, ErrorGuaranteed, Span, Symbol};
use rustc_type_ir::Upcast as _;
use super::nice_region_error::find_anon_type;
use super::{nice_region_error, ObligationCauseAsDiagArg};
use crate::error_reporting::infer::ObligationCauseExt as _;
use super::ObligationCauseAsDiagArg;
use crate::error_reporting::infer::ObligationCauseExt;
use crate::error_reporting::TypeErrCtxt;
use crate::errors::{
self, note_and_explain, FulfillReqLifetime, LfBoundNotSatisfied, OutlivesBound,
@ -1212,22 +1212,8 @@ pub fn unexpected_hidden_region_diagnostic<'a, 'tcx>(
hidden_region,
"",
);
if let Some(reg_info) = tcx.is_suitable_region(generic_param_scope, hidden_region) {
if infcx.tcx.features().precise_capturing {
if let Some(_) = tcx.is_suitable_region(generic_param_scope, hidden_region) {
suggest_precise_capturing(tcx, opaque_ty_key.def_id, hidden_region, &mut err);
} else {
let fn_returns = tcx.return_type_impl_or_dyn_traits(reg_info.def_id);
nice_region_error::suggest_new_region_bound(
tcx,
&mut err,
fn_returns,
hidden_region.to_string(),
None,
format!("captures `{hidden_region}`"),
None,
Some(reg_info.def_id),
)
}
}
}
ty::RePlaceholder(_) => {

6
tests/ui/async-await/multiple-lifetimes/ret-impl-trait-one.stderr
View File

@ -26,10 +26,10 @@ LL | | (a, b)
LL | | }
| |_^
|
help: to declare that `impl Trait<'a>` captures `'b`, you can add an explicit `'b` lifetime bound
help: add a `use<...>` bound to explicitly capture `'b`
|
LL | async fn async_ret_impl_trait1<'a, 'b>(a: &'a u8, b: &'b u8) -> impl Trait<'a> + 'b {
| ++++
LL | async fn async_ret_impl_trait1<'a, 'b>(a: &'a u8, b: &'b u8) -> impl Trait<'a> + use<'a, 'b> {
| +++++++++++++
error: aborting due to 2 previous errors

5
tests/ui/borrowck/alias-liveness/opaque-type-param.stderr
View File

@ -7,6 +7,11 @@ LL | fn foo<'a>(s: &'a str) -> impl Trait + 'static {
| hidden type `impl Trait + 'static` captures the lifetime `'a` as defined here
LL | bar(s)
| ^^^^^^
|
help: add a `use<...>` bound to explicitly capture `'a`
|
LL | fn foo<'a>(s: &'a str) -> impl Trait + 'static + use<'a> {
| +++++++++
error: aborting due to 1 previous error

6
tests/ui/const-generics/generic_const_exprs/issue-109141.stderr
View File

@ -30,10 +30,10 @@ LL | fn a(&self) -> impl Iterator {
LL | self.0.iter_mut()
| ^^^^^^^^^^^^^^^^^
|
help: to declare that `impl Iterator` captures `'_`, you can add an explicit `'_` lifetime bound
help: add a `use<...>` bound to explicitly capture `'_`
|
LL | fn a(&self) -> impl Iterator + '_ {
| ++++
LL | fn a(&self) -> impl Iterator + use<'_> {
| +++++++++
error: aborting due to 3 previous errors

6
tests/ui/feature-gates/feature-gate-lifetime-capture-rules-2024.stderr
View File

@ -8,10 +8,10 @@ LL | fn foo(x: &Vec<i32>) -> impl Sized {
LL | x
| ^
|
help: to declare that `impl Sized` captures `'_`, you can add an explicit `'_` lifetime bound
help: add a `use<...>` bound to explicitly capture `'_`
|
LL | fn foo(x: &Vec<i32>) -> impl Sized + '_ {
| ++++
LL | fn foo(x: &Vec<i32>) -> impl Sized + use<'_> {
| +++++++++
error: aborting due to 1 previous error

6
tests/ui/impl-trait/alias-liveness/rpit-hidden-erased-unsoundness.stderr
View File

@ -8,10 +8,10 @@ LL | fn step2<'a, 'b: 'a>() -> impl Sized + 'a {
LL | step1::<'a, 'b>()
| ^^^^^^^^^^^^^^^^^
|
help: to declare that `impl Sized + 'a` captures `'b`, you can add an explicit `'b` lifetime bound
help: add a `use<...>` bound to explicitly capture `'b`
|
LL | fn step2<'a, 'b: 'a>() -> impl Sized + 'a + 'b {
| ++++
LL | fn step2<'a, 'b: 'a>() -> impl Sized + 'a + use<'a, 'b> {
| +++++++++++++
error: aborting due to 1 previous error

6
tests/ui/impl-trait/alias-liveness/rpit-hide-lifetime-for-swap.stderr
View File

@ -8,10 +8,10 @@ LL | fn hide<'a, 'b: 'a, T: 'static>(x: Rc<RefCell<&'b T>>) -> impl Swap + 'a {
LL | x
| ^
|
help: to declare that `impl Swap + 'a` captures `'b`, you can add an explicit `'b` lifetime bound
help: add a `use<...>` bound to explicitly capture `'b`
|
LL | fn hide<'a, 'b: 'a, T: 'static>(x: Rc<RefCell<&'b T>>) -> impl Swap + 'a + 'b {
| ++++
LL | fn hide<'a, 'b: 'a, T: 'static>(x: Rc<RefCell<&'b T>>) -> impl Swap + 'a + use<'a, 'b, T> {
| ++++++++++++++++
error: aborting due to 1 previous error

12
tests/ui/impl-trait/hidden-lifetimes.stderr
View File

@ -8,10 +8,10 @@ LL | fn hide_ref<'a, 'b, T: 'static>(x: &'a mut &'b T) -> impl Swap + 'a {
LL | x
| ^
|
help: to declare that `impl Swap + 'a` captures `'b`, you can add an explicit `'b` lifetime bound
help: add a `use<...>` bound to explicitly capture `'b`
|
LL | fn hide_ref<'a, 'b, T: 'static>(x: &'a mut &'b T) -> impl Swap + 'a + 'b {
| ++++
LL | fn hide_ref<'a, 'b, T: 'static>(x: &'a mut &'b T) -> impl Swap + 'a + use<'a, 'b, T> {
| ++++++++++++++++
error[E0700]: hidden type for `impl Swap + 'a` captures lifetime that does not appear in bounds
--> $DIR/hidden-lifetimes.rs:46:5
@ -23,10 +23,10 @@ LL | fn hide_rc_refcell<'a, 'b: 'a, T: 'static>(x: Rc<RefCell<&'b T>>) -> impl S
LL | x
| ^
|
help: to declare that `impl Swap + 'a` captures `'b`, you can add an explicit `'b` lifetime bound
help: add a `use<...>` bound to explicitly capture `'b`
|
LL | fn hide_rc_refcell<'a, 'b: 'a, T: 'static>(x: Rc<RefCell<&'b T>>) -> impl Swap + 'a + 'b {
| ++++
LL | fn hide_rc_refcell<'a, 'b: 'a, T: 'static>(x: Rc<RefCell<&'b T>>) -> impl Swap + 'a + use<'a, 'b, T> {
| ++++++++++++++++
error: aborting due to 2 previous errors

2
tests/ui/impl-trait/in-trait/cannot-capture-intersection.rs
View File

@ -1,5 +1,3 @@
#![feature(precise_capturing)]
use std::future::Future;
use std::pin::Pin;

2
tests/ui/impl-trait/in-trait/cannot-capture-intersection.stderr
View File

@ -1,5 +1,5 @@
error[E0700]: hidden type for `impl Future<Output = i32>` captures lifetime that does not appear in bounds
--> $DIR/cannot-capture-intersection.rs:24:9
--> $DIR/cannot-capture-intersection.rs:22:9
|
LL | fn foo<'a, 'b>(&'a self, x: &'b i32) -> impl Future<Output = i32> {
| ------------------------- opaque type defined here

18
tests/ui/impl-trait/must_outlive_least_region_or_bound.stderr
View File

@ -7,10 +7,10 @@ LL | fn elided(x: &i32) -> impl Copy { x }
| | opaque type defined here
| hidden type `&i32` captures the anonymous lifetime defined here
|
help: to declare that `impl Copy` captures `'_`, you can add an explicit `'_` lifetime bound
help: add a `use<...>` bound to explicitly capture `'_`
|
LL | fn elided(x: &i32) -> impl Copy + '_ { x }
| ++++
LL | fn elided(x: &i32) -> impl Copy + use<'_> { x }
| +++++++++
error[E0700]: hidden type for `impl Copy` captures lifetime that does not appear in bounds
--> $DIR/must_outlive_least_region_or_bound.rs:6:44
@ -21,10 +21,10 @@ LL | fn explicit<'a>(x: &'a i32) -> impl Copy { x }
| | opaque type defined here
| hidden type `&'a i32` captures the lifetime `'a` as defined here
|
help: to declare that `impl Copy` captures `'a`, you can add an explicit `'a` lifetime bound
help: add a `use<...>` bound to explicitly capture `'a`
|
LL | fn explicit<'a>(x: &'a i32) -> impl Copy + 'a { x }
| ++++
LL | fn explicit<'a>(x: &'a i32) -> impl Copy + use<'a> { x }
| +++++++++
error: lifetime may not live long enough
--> $DIR/must_outlive_least_region_or_bound.rs:9:46
@ -108,10 +108,10 @@ LL | fn move_lifetime_into_fn<'a, 'b>(x: &'a u32, y: &'b u32) -> impl Fn(&'a u32
LL | move |_| println!("{}", y)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl Fn(&'a u32)` captures `'b`, you can add an explicit `'b` lifetime bound
help: add a `use<...>` bound to explicitly capture `'b`
|
LL | fn move_lifetime_into_fn<'a, 'b>(x: &'a u32, y: &'b u32) -> impl Fn(&'a u32) + 'b {
| ++++
LL | fn move_lifetime_into_fn<'a, 'b>(x: &'a u32, y: &'b u32) -> impl Fn(&'a u32) + use<'a, 'b> {
| +++++++++++++
error[E0310]: the parameter type `T` may not live long enough
--> $DIR/must_outlive_least_region_or_bound.rs:47:5

10
tests/ui/impl-trait/nested-return-type4.stderr
View File

@ -8,14 +8,10 @@ LL | fn test<'s: 's>(s: &'s str) -> impl std::future::Future<Output = impl Sized
LL | async move { let _s = s; }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl Future<Output = impl Sized>` captures `'s`, you can add an explicit `'s` lifetime bound
help: add a `use<...>` bound to explicitly capture `'s`
|
LL | fn test<'s: 's>(s: &'s str) -> impl std::future::Future<Output = impl Sized> + 's {
| ++++
help: to declare that `impl Sized` captures `'s`, you can add an explicit `'s` lifetime bound
|
LL | fn test<'s: 's>(s: &'s str) -> impl std::future::Future<Output = impl Sized + 's> {
| ++++
LL | fn test<'s: 's>(s: &'s str) -> impl std::future::Future<Output = impl Sized> + use<'s> {
| +++++++++
error: aborting due to 1 previous error

2
tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.rs
View File

@ -1,5 +1,3 @@
#![feature(precise_capturing)]
fn lifetime<'a, 'b>(x: &'a ()) -> impl Sized + use<'b> {
//~^ HELP add `'a` to the `use<...>` bound
x

16
tests/ui/impl-trait/precise-capturing/hidden-type-suggestion.stderr
View File

@ -1,5 +1,5 @@
error[E0700]: hidden type for `impl Sized` captures lifetime that does not appear in bounds
--> $DIR/hidden-type-suggestion.rs:5:5
--> $DIR/hidden-type-suggestion.rs:3:5
|
LL | fn lifetime<'a, 'b>(x: &'a ()) -> impl Sized + use<'b> {
| -- -------------------- opaque type defined here
@ -15,7 +15,7 @@ LL | fn lifetime<'a, 'b>(x: &'a ()) -> impl Sized + use<'b, 'a> {
| ++++
error[E0700]: hidden type for `impl Sized` captures lifetime that does not appear in bounds
--> $DIR/hidden-type-suggestion.rs:11:5
--> $DIR/hidden-type-suggestion.rs:9:5
|
LL | fn param<'a, T>(x: &'a ()) -> impl Sized + use<T> {
| -- ------------------- opaque type defined here
@ -31,7 +31,7 @@ LL | fn param<'a, T>(x: &'a ()) -> impl Sized + use<'a, T> {
| +++
error[E0700]: hidden type for `impl Sized` captures lifetime that does not appear in bounds
--> $DIR/hidden-type-suggestion.rs:17:5
--> $DIR/hidden-type-suggestion.rs:15:5
|
LL | fn empty<'a>(x: &'a ()) -> impl Sized + use<> {
| -- ------------------ opaque type defined here
@ -47,7 +47,7 @@ LL | fn empty<'a>(x: &'a ()) -> impl Sized + use<'a> {
| ++
error[E0700]: hidden type for `impl Captures<'captured>` captures lifetime that does not appear in bounds
--> $DIR/hidden-type-suggestion.rs:26:5
--> $DIR/hidden-type-suggestion.rs:24:5
|
LL | fn missing<'a, 'captured, 'not_captured, Captured>(x: &'a ()) -> impl Captures<'captured> {
| -- ------------------------ opaque type defined here
@ -63,7 +63,7 @@ LL | fn missing<'a, 'captured, 'not_captured, Captured>(x: &'a ()) -> impl Captu
| ++++++++++++++++++++++++++++++
error[E0700]: hidden type for `impl Sized` captures lifetime that does not appear in bounds
--> $DIR/hidden-type-suggestion.rs:32:5
--> $DIR/hidden-type-suggestion.rs:30:5
|
LL | fn no_params_yet(_: impl Sized, y: &()) -> impl Sized {
| --- ---------- opaque type defined here
@ -74,7 +74,7 @@ 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
--> $DIR/hidden-type-suggestion.rs:28:21
|
LL | fn no_params_yet(_: impl Sized, y: &()) -> impl Sized {
| ^^^^^^^^^^
@ -84,7 +84,7 @@ 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
--> $DIR/hidden-type-suggestion.rs:36:5
|
LL | fn yes_params_yet<'a, T>(_: impl Sized, y: &'a ()) -> impl Sized {
| -- ---------- opaque type defined here
@ -95,7 +95,7 @@ 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
--> $DIR/hidden-type-suggestion.rs:34:29
|
LL | fn yes_params_yet<'a, T>(_: impl Sized, y: &'a ()) -> impl Sized {
| ^^^^^^^^^^

6
tests/ui/impl-trait/region-escape-via-bound.stderr
View File

@ -9,10 +9,10 @@ LL | fn foo<'x, 'y>(x: Cell<&'x u32>) -> impl Trait<'y>
LL | x
| ^
|
help: to declare that `impl Trait<'y>` captures `'x`, you can add an explicit `'x` lifetime bound
help: add a `use<...>` bound to explicitly capture `'x`
|
LL | fn foo<'x, 'y>(x: Cell<&'x u32>) -> impl Trait<'y> + 'x
| ++++
LL | fn foo<'x, 'y>(x: Cell<&'x u32>) -> impl Trait<'y> + use<'y, 'x>
| +++++++++++++
error: aborting due to 1 previous error

12
tests/ui/impl-trait/static-return-lifetime-infered.stderr
View File

@ -8,10 +8,10 @@ LL | fn iter_values_anon(&self) -> impl Iterator<Item=u32> {
LL | self.x.iter().map(|a| a.0)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl Iterator<Item = u32>` captures `'_`, you can add an explicit `'_` lifetime bound
help: add a `use<...>` bound to explicitly capture `'_`
|
LL | fn iter_values_anon(&self) -> impl Iterator<Item=u32> + '_ {
| ++++
LL | fn iter_values_anon(&self) -> impl Iterator<Item=u32> + use<'_> {
| +++++++++
error[E0700]: hidden type for `impl Iterator<Item = u32>` captures lifetime that does not appear in bounds
--> $DIR/static-return-lifetime-infered.rs:11:9
@ -23,10 +23,10 @@ LL | fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> {
LL | self.x.iter().map(|a| a.0)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl Iterator<Item = u32>` captures `'a`, you can add an explicit `'a` lifetime bound
help: add a `use<...>` bound to explicitly capture `'a`
|
LL | fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> + 'a {
| ++++
LL | fn iter_values<'a>(&'a self) -> impl Iterator<Item=u32> + use<'a> {
| +++++++++
error: aborting due to 2 previous errors

26
tests/ui/lifetimes/issue-105227.fixed
View File

@ -1,26 +0,0 @@
// Regression test for issue #105227.
//@ run-rustfix
#![allow(warnings)]
fn chars0<'a>(v :(&'a str, &'a str)) -> impl Iterator<Item = char> + 'a {
//~^ HELP to declare that `impl Iterator<Item = char>` captures `'_`, you can introduce a named lifetime parameter `'a`
v.0.chars().chain(v.1.chars())
//~^ ERROR hidden type for `impl Iterator<Item = char>` captures lifetime that does not appear in bounds
}
fn chars1<'a>(v0 : &'a str, v1 : &'a str) -> impl Iterator<Item = char> + 'a {
//~^ HELP to declare that `impl Iterator<Item = char>` captures `'_`, you can introduce a named lifetime parameter `'a`
v0.chars().chain(v1.chars())
//~^ ERROR hidden type for `impl Iterator<Item = char>` captures lifetime that does not appear in bound
}
fn chars2<'b>(v0 : &'b str, v1 : &'b str, v2 : &'b str) ->
//~^ HELP to declare that `impl Iterator<Item = char>` captures `'_`, you can use the named lifetime parameter `'b`
(impl Iterator<Item = char> + 'b , &'b str)
{
(v0.chars().chain(v1.chars()), v2)
//~^ ERROR hidden type for `impl Iterator<Item = char>` captures lifetime that does not appear in bound
}
fn main() {
}

16
tests/ui/lifetimes/issue-105227.rs
View File

@ -1,23 +1,23 @@
// Regression test for issue #105227.
//@ run-rustfix
#![allow(warnings)]
// FIXME(precise_capturing): Add rustfix here after dealing w/ elided lifetimes
#![allow(unused)]
fn chars0(v :(& str, &str)) -> impl Iterator<Item = char> {
//~^ HELP to declare that `impl Iterator<Item = char>` captures `'_`, you can introduce a named lifetime parameter `'a`
//~^ HELP add a `use<...>` bound
v.0.chars().chain(v.1.chars())
//~^ ERROR hidden type for `impl Iterator<Item = char>` captures lifetime that does not appear in bounds
}
fn chars1(v0 : & str, v1 : &str) -> impl Iterator<Item = char> {
//~^ HELP to declare that `impl Iterator<Item = char>` captures `'_`, you can introduce a named lifetime parameter `'a`
//~^ HELP add a `use<...>` bound
v0.chars().chain(v1.chars())
//~^ ERROR hidden type for `impl Iterator<Item = char>` captures lifetime that does not appear in bound
}
fn chars2<'b>(v0 : &str, v1 : &'_ str, v2 : &'b str) ->
//~^ HELP to declare that `impl Iterator<Item = char>` captures `'_`, you can use the named lifetime parameter `'b`
(impl Iterator<Item = char>, &'b str)
{
fn chars2<'b>(v0 : &str, v1 : &'_ str, v2 : &'b str) -> (impl Iterator<Item = char>, &'b str) {
//~^ HELP add a `use<...>` bound
(v0.chars().chain(v1.chars()), v2)
//~^ ERROR hidden type for `impl Iterator<Item = char>` captures lifetime that does not appear in bound
}

33
tests/ui/lifetimes/issue-105227.stderr
View File

@ -1,5 +1,5 @@
error[E0700]: hidden type for `impl Iterator<Item = char>` captures lifetime that does not appear in bounds
--> $DIR/issue-105227.rs:7:5
--> $DIR/issue-105227.rs:9:5
|
LL | fn chars0(v :(& str, &str)) -> impl Iterator<Item = char> {
| ----- -------------------------- opaque type defined here
@ -9,13 +9,13 @@ LL |
LL | v.0.chars().chain(v.1.chars())
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl Iterator<Item = char>` captures `'_`, you can introduce a named lifetime parameter `'a`
help: add a `use<...>` bound to explicitly capture `'_`
|
LL | fn chars0<'a>(v :(&'a str, &'a str)) -> impl Iterator<Item = char> + 'a {
| ++++ ++ ++ ++++
LL | fn chars0(v :(& str, &str)) -> impl Iterator<Item = char> + use<'_> {
| +++++++++
error[E0700]: hidden type for `impl Iterator<Item = char>` captures lifetime that does not appear in bounds
--> $DIR/issue-105227.rs:13:5
--> $DIR/issue-105227.rs:15:5
|
LL | fn chars1(v0 : & str, v1 : &str) -> impl Iterator<Item = char> {
| ----- -------------------------- opaque type defined here
@ -25,29 +25,26 @@ LL |
LL | v0.chars().chain(v1.chars())
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl Iterator<Item = char>` captures `'_`, you can introduce a named lifetime parameter `'a`
help: add a `use<...>` bound to explicitly capture `'_`
|
LL | fn chars1<'a>(v0 : &'a str, v1 : &'a str) -> impl Iterator<Item = char> + 'a {
| ++++ ++ ++ ++++
LL | fn chars1(v0 : & str, v1 : &str) -> impl Iterator<Item = char> + use<'_> {
| +++++++++
error[E0700]: hidden type for `impl Iterator<Item = char>` captures lifetime that does not appear in bounds
--> $DIR/issue-105227.rs:21:5
|
LL | fn chars2<'b>(v0 : &str, v1 : &'_ str, v2 : &'b str) ->
| ---- hidden type `std::iter::Chain<Chars<'_>, Chars<'_>>` captures the anonymous lifetime defined here
LL | fn chars2<'b>(v0 : &str, v1 : &'_ str, v2 : &'b str) -> (impl Iterator<Item = char>, &'b str) {
| ---- -------------------------- opaque type defined here
| |
| hidden type `std::iter::Chain<Chars<'_>, Chars<'_>>` captures the anonymous lifetime defined here
LL |
LL | (impl Iterator<Item = char>, &'b str)
| -------------------------- opaque type defined here
LL | {
LL | (v0.chars().chain(v1.chars()), v2)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl Iterator<Item = char>` captures `'_`, you can use the named lifetime parameter `'b`
|
LL ~ fn chars2<'b>(v0 : &'b str, v1 : &'b str, v2 : &'b str) ->
LL |
LL ~ (impl Iterator<Item = char> + 'b , &'b str)
help: add a `use<...>` bound to explicitly capture `'_`
|
LL | fn chars2<'b>(v0 : &str, v1 : &'_ str, v2 : &'b str) -> (impl Iterator<Item = char> + use<'_>, &'b str) {
| +++++++++
error: aborting due to 3 previous errors

5
tests/ui/nll/issue-73159-rpit-static.stderr
View File

@ -7,6 +7,11 @@ LL | fn make_it(&self) -> impl Iterator<Item = u8> {
| ------------------------ opaque type defined here
LL | self.0.iter().copied()
| ^^^^^^^^^^^^^^^^^^^^^^
|
help: add a `use<...>` bound to explicitly capture `'a`
|
LL | fn make_it(&self) -> impl Iterator<Item = u8> + use<'a> {
| +++++++++
error: aborting due to 1 previous error

6
tests/ui/nll/member-constraints/min-choice-reject-ambiguous.stderr
View File

@ -37,10 +37,10 @@ LL | fn test_ambiguous<'a, 'b, 'c>(s: &'a u8) -> impl Cap<'b> + Cap<'c>
LL | s
| ^
|
help: to declare that `impl Cap<'b> + Cap<'c>` captures `'a`, you can add an explicit `'a` lifetime bound
help: add a `use<...>` bound to explicitly capture `'a`
|
LL | fn test_ambiguous<'a, 'b, 'c>(s: &'a u8) -> impl Cap<'b> + Cap<'c> + 'a
| ++++
LL | fn test_ambiguous<'a, 'b, 'c>(s: &'a u8) -> impl Cap<'b> + Cap<'c> + use<'b, 'c, 'a>
| +++++++++++++++++
error: aborting due to 3 previous errors

40
tests/ui/nll/member-constraints/nested-impl-trait-fail.stderr
View File

@ -9,14 +9,10 @@ LL | fn fail_early_bound<'s, 'a, 'b>(a: &'s u8) -> impl IntoIterator<Item = impl
LL | [a]
| ^^^
|
help: to declare that `impl IntoIterator<Item = impl Cap<'a> + Cap<'b>>` captures `'s`, you can add an explicit `'s` lifetime bound
help: add a `use<...>` bound to explicitly capture `'s`
|
LL | fn fail_early_bound<'s, 'a, 'b>(a: &'s u8) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b>> + 's
| ++++
help: to declare that `impl Cap<'a> + Cap<'b>` captures `'s`, you can add an explicit `'s` lifetime bound
|
LL | fn fail_early_bound<'s, 'a, 'b>(a: &'s u8) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b> + 's>
| ++++
LL | fn fail_early_bound<'s, 'a, 'b>(a: &'s u8) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b>> + use<'a, 'b, 's>
| +++++++++++++++++
error[E0700]: hidden type for `impl Cap<'a> + Cap<'b>` captures lifetime that does not appear in bounds
--> $DIR/nested-impl-trait-fail.rs:17:5
@ -29,14 +25,10 @@ LL | fn fail_early_bound<'s, 'a, 'b>(a: &'s u8) -> impl IntoIterator<Item = impl
LL | [a]
| ^^^
|
help: to declare that `impl IntoIterator<Item = impl Cap<'a> + Cap<'b>>` captures `'s`, you can add an explicit `'s` lifetime bound
help: add a `use<...>` bound to explicitly capture `'s`
|
LL | fn fail_early_bound<'s, 'a, 'b>(a: &'s u8) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b>> + 's
| ++++
help: to declare that `impl Cap<'a> + Cap<'b>` captures `'s`, you can add an explicit `'s` lifetime bound
|
LL | fn fail_early_bound<'s, 'a, 'b>(a: &'s u8) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b> + 's>
| ++++
LL | fn fail_early_bound<'s, 'a, 'b>(a: &'s u8) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b> + use<'a, 'b, 's>>
| +++++++++++++++++
error[E0700]: hidden type for `impl IntoIterator<Item = impl Cap<'a> + Cap<'b>>` captures lifetime that does not appear in bounds
--> $DIR/nested-impl-trait-fail.rs:28:5
@ -49,14 +41,10 @@ LL | ) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b>> {
LL | [a]
| ^^^
|
help: to declare that `impl IntoIterator<Item = impl Cap<'a> + Cap<'b>>` captures `'s`, you can add an explicit `'s` lifetime bound
help: add a `use<...>` bound to explicitly capture `'s`
|
LL | ) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b>> + 's {
| ++++
help: to declare that `impl Cap<'a> + Cap<'b>` captures `'s`, you can add an explicit `'s` lifetime bound
|
LL | ) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b> + 's> {
| ++++
LL | ) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b>> + use<'a, 'b, 's> {
| +++++++++++++++++
error[E0700]: hidden type for `impl Cap<'a> + Cap<'b>` captures lifetime that does not appear in bounds
--> $DIR/nested-impl-trait-fail.rs:28:5
@ -69,14 +57,10 @@ LL | ) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b>> {
LL | [a]
| ^^^
|
help: to declare that `impl IntoIterator<Item = impl Cap<'a> + Cap<'b>>` captures `'s`, you can add an explicit `'s` lifetime bound
help: add a `use<...>` bound to explicitly capture `'s`
|
LL | ) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b>> + 's {
| ++++
help: to declare that `impl Cap<'a> + Cap<'b>` captures `'s`, you can add an explicit `'s` lifetime bound
|
LL | ) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b> + 's> {
| ++++
LL | ) -> impl IntoIterator<Item = impl Cap<'a> + Cap<'b> + use<'a, 'b, 's>> {
| +++++++++++++++++
error: aborting due to 4 previous errors

6
tests/ui/nll/polonius/location-insensitive-scopes-issue-116657.nll.stderr
View File

@ -25,10 +25,10 @@ LL | fn test<'a>(y: &'a mut i32) -> impl PlusOne {
LL | <&mut i32 as Callable>::call(y)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl PlusOne` captures `'a`, you can add an explicit `'a` lifetime bound
help: add a `use<...>` bound to explicitly capture `'a`
|
LL | fn test<'a>(y: &'a mut i32) -> impl PlusOne + 'a {
| ++++
LL | fn test<'a>(y: &'a mut i32) -> impl PlusOne + use<'a> {
| +++++++++
error: aborting due to 3 previous errors

6
tests/ui/nll/polonius/location-insensitive-scopes-issue-116657.polonius.stderr
View File

@ -25,10 +25,10 @@ LL | fn test<'a>(y: &'a mut i32) -> impl PlusOne {
LL | <&mut i32 as Callable>::call(y)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl PlusOne` captures `'a`, you can add an explicit `'a` lifetime bound
help: add a `use<...>` bound to explicitly capture `'a`
|
LL | fn test<'a>(y: &'a mut i32) -> impl PlusOne + 'a {
| ++++
LL | fn test<'a>(y: &'a mut i32) -> impl PlusOne + use<'a> {
| +++++++++
error: aborting due to 3 previous errors

6
tests/ui/nll/ty-outlives/impl-trait-captures.stderr
View File

@ -8,10 +8,10 @@ LL | fn foo<'a, T>(x: &T) -> impl Foo<'a> {
LL | x
| ^
|
help: to declare that `Opaque(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::{opaque#0}), ['a/#0, T, 'a/#2])` captures `ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_))`, you can add an explicit `ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_))` lifetime bound
help: add a `use<...>` bound to explicitly capture `ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_))`
|
LL | fn foo<'a, T>(x: &T) -> impl Foo<'a> + ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_)) {
| +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
LL | fn foo<'a, T>(x: &T) -> impl Foo<'a> + use<'a, ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_)), T> {
| +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
error: aborting due to 1 previous error

6
tests/ui/self/arbitrary_self_types_pin_lifetime_impl_trait-async.stderr
View File

@ -7,10 +7,10 @@ LL | async fn f(self: Pin<&Self>) -> impl Clone { self }
| | opaque type defined here
| hidden type `Pin<&Foo>` captures the anonymous lifetime defined here
|
help: to declare that `impl Clone` captures `'_`, you can add an explicit `'_` lifetime bound
help: add a `use<...>` bound to explicitly capture `'_`
|
LL | async fn f(self: Pin<&Self>) -> impl Clone + '_ { self }
| ++++
LL | async fn f(self: Pin<&Self>) -> impl Clone + use<'_> { self }
| +++++++++
error: aborting due to 1 previous error

6
tests/ui/self/arbitrary_self_types_pin_lifetime_impl_trait.stderr
View File

@ -7,10 +7,10 @@ LL | fn f(self: Pin<&Self>) -> impl Clone { self }
| | opaque type defined here
| hidden type `Pin<&Foo>` captures the anonymous lifetime defined here
|
help: to declare that `impl Clone` captures `'_`, you can add an explicit `'_` lifetime bound
help: add a `use<...>` bound to explicitly capture `'_`
|
LL | fn f(self: Pin<&Self>) -> impl Clone + '_ { self }
| ++++
LL | fn f(self: Pin<&Self>) -> impl Clone + use<'_> { self }
| +++++++++
error: aborting due to 1 previous error

6
tests/ui/suggestions/lifetimes/missing-lifetimes-in-signature.stderr
View File

@ -20,10 +20,10 @@ LL | | *dest = g.get();
LL | | }
| |_____^
|
help: to declare that `impl FnOnce()` captures `'_`, you can add an explicit `'_` lifetime bound
help: add a `use<...>` bound to explicitly capture `'_`
|
LL | fn foo<G, T>(g: G, dest: &mut T) -> impl FnOnce() + '_
| ++++
LL | fn foo<G, T>(g: G, dest: &mut T) -> impl FnOnce() + use<'_, G, T>
| +++++++++++++++
error[E0311]: the parameter type `G` may not live long enough
--> $DIR/missing-lifetimes-in-signature.rs:30:5

5
tests/ui/type-alias-impl-trait/different_args_considered_equal2.stderr
View File

@ -9,11 +9,6 @@ LL | fn get_one<'a>(a: *mut &'a str) -> impl IntoIterator<Item = Opaque<'a>> {
...
LL | None::<Opaque<'static>>
| ^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl IntoIterator<Item = Opaque<'a>>` captures `'a`, you can add an explicit `'a` lifetime bound
|
LL | fn get_one<'a>(a: *mut &'a str) -> impl IntoIterator<Item = Opaque<'a>> + 'a {
| ++++
error: aborting due to 1 previous error

6
tests/ui/type-alias-impl-trait/imply_bounds_from_bounds_param.stderr
View File

@ -8,10 +8,10 @@ LL | fn test<'a>(y: &'a mut i32) -> impl PlusOne {
LL | <&'a mut i32 as Callable>::call(y)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: to declare that `impl PlusOne` captures `'a`, you can add an explicit `'a` lifetime bound
help: add a `use<...>` bound to explicitly capture `'a`
|
LL | fn test<'a>(y: &'a mut i32) -> impl PlusOne + 'a {
| ++++
LL | fn test<'a>(y: &'a mut i32) -> impl PlusOne + use<'a> {
| +++++++++
error: aborting due to 1 previous error