Matthias Krüger ffdb471872 Rollup merge of #117914 - estebank:issue-85843, r=wesleywiser ... On borrow return type, suggest borrowing from arg or owned return type When we encounter a function with a return type that has an anonymous lifetime with no argument to borrow from, besides suggesting the `'static` lifetime we now also suggest changing the arguments to be borrows or changing the return type to be an owned type. ``` error[E0106]: missing lifetime specifier --> $DIR/variadic-ffi-6.rs:7:6 | LL | ) -> &usize { | ^ expected named lifetime parameter | = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static` | LL | ) -> &'static usize { | +++++++ help: instead, you are more likely to want to change one of the arguments to be borrowed... | LL | x: &usize, | + help: ...or alternatively, to want to return an owned value | LL - ) -> &usize { LL + ) -> usize { | ``` Fix #85843.		2023-12-12 17:40:53 +01:00
..
auxiliary
lifetime-errors	Add print_trait_sugared	2023-12-05 17:15:46 +00:00
anonymize-unnamed-bound-vars-in-binders.rs	Properly consider binder vars in HasTypeFlagsVisitor	2023-09-14 03:49:59 +00:00
bare-trait-object-borrowck.rs
bare-trait-object.rs
borrowck-let-suggestion.rs
borrowck-let-suggestion.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
conflicting-bounds.rs
conflicting-bounds.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
copy_modulo_regions.rs
copy_modulo_regions.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
elided-lifetime-in-anon-const.rs	Do not force anonymous lifetimes in consts to be static.	2023-04-29 10:32:31 +00:00
elided-lifetime-in-param-pat.rs
elided-lifetime-in-path-in-impl-Fn.rs
elided-lifetime-in-path-in-pat.rs
elided-lifetime-in-path-in-type-relative-expression.rs
fullwidth-ampersand.rs
fullwidth-ampersand.stderr
issue-17728.rs
issue-17728.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
issue-26638.rs
issue-26638.stderr	Tweak wording	2023-11-20 23:44:37 +00:00
issue-34979.rs
issue-34979.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
issue-36744-without-calls.rs	Move test files	2023-04-20 15:06:17 -03:00
issue-54378.rs
issue-55796.rs
issue-55796.stderr
issue-64173-unused-lifetimes.rs	improve diagnostics and bless tests	2023-05-05 21:42:54 +01:00
issue-64173-unused-lifetimes.stderr	generic_const_exprs: suggest to add the feature, not use it	2023-11-30 20:59:51 +01:00
issue-67498.rs
issue-69314.fixed	Introduce ReError	2023-02-09 10:26:49 +00:00
issue-69314.rs	Introduce ReError	2023-02-09 10:26:49 +00:00
issue-69314.stderr	Extend and use hir::Node::body_id	2023-04-19 19:13:45 +00:00
issue-70917-lifetimes-in-fn-def.rs
issue-76168-hr-outlives-2.rs
issue-76168-hr-outlives-3.rs	Pretty print Fn traits in rustc_on_unimplemented	2023-11-02 20:57:05 +00:00
issue-76168-hr-outlives-3.stderr	Pretty print Fn traits in rustc_on_unimplemented	2023-11-02 20:57:05 +00:00
issue-76168-hr-outlives.rs
issue-77175.rs	s/generator/coroutine/	2023-10-20 21:14:01 +00:00
issue-79187-2.rs
issue-79187-2.stderr	recurse into refs when comparing tys for diagnostics	2023-12-07 23:00:46 -05:00
issue-79187.rs
issue-79187.stderr	Add print_trait_sugared	2023-12-05 17:15:46 +00:00
issue-83737-binders-across-types.rs
issue-83737-erasing-bound-vars.rs
issue-83753-invalid-associated-type-supertrait-hrtb.rs
issue-83753-invalid-associated-type-supertrait-hrtb.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
issue-83907-invalid-fn-like-path.rs
issue-83907-invalid-fn-like-path.stderr
issue-84398.rs
issue-84604.rs
issue-90170-elision-mismatch.fixed
issue-90170-elision-mismatch.rs
issue-90170-elision-mismatch.stderr
issue-90600-expected-return-static-indirect.rs
issue-90600-expected-return-static-indirect.stderr	Tweak the post-order for multi-successor blocks	2023-05-21 17:48:36 -07:00
issue-91763.rs
issue-91763.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
issue-93911.rs	Add regression test for #93911	2023-04-05 01:01:45 +09:00
issue-95023.rs
issue-95023.stderr	Improve "associated type not found" diagnostics	2023-09-08 06:52:17 +02:00
issue-97193.rs
issue-97193.stderr
issue-97194.rs
issue-97194.stderr
issue-103582-hint-for-missing-lifetime-bound-on-trait-object-using-type-alias.fixed	Add hint for missing lifetime bound on trait object when type alias is used	2023-01-23 09:54:45 -08:00
issue-103582-hint-for-missing-lifetime-bound-on-trait-object-using-type-alias.rs	Add hint for missing lifetime bound on trait object when type alias is used	2023-01-23 09:54:45 -08:00
issue-103582-hint-for-missing-lifetime-bound-on-trait-object-using-type-alias.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
issue-104432-unused-lifetimes-in-expansion.rs	unused-lifetimes: don't warn about lifetimes originating from expanded code	2023-02-03 21:18:34 +01:00
issue-105227.fixed
issue-105227.rs
issue-105227.stderr	Label opaque type for 'captures lifetime' error message	2023-03-03 05:02:34 +00:00
issue-105507.fixed	Add 'static lifetime suggestion when GAT implied 'static requirement from HRTB	2023-01-17 11:52:45 -08:00
issue-105507.rs	Add 'static lifetime suggestion when GAT implied 'static requirement from HRTB	2023-01-17 11:52:45 -08:00
issue-105507.stderr	Add 'static lifetime suggestion when GAT implied 'static requirement from HRTB	2023-01-17 11:52:45 -08:00
issue-105675.rs	use param instead of ty	2023-04-14 11:39:35 -04:00
issue-105675.stderr	Add print_trait_sugared	2023-12-05 17:15:46 +00:00
issue-107492-default-value-for-lifetime.rs	Recover from default value for a lifetime in generic parameters.	2023-02-04 17:04:09 -06:00
issue-107492-default-value-for-lifetime.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
issue-107988.rs	Don't trigger ICE for ReError when the other region is empty.	2023-02-26 20:47:18 -06:00
issue-107988.stderr	Don't trigger ICE for ReError when the other region is empty.	2023-02-26 20:47:18 -06:00
lifetime-bound-will-change-warning.rs
lifetime-bound-will-change-warning.stderr
lifetime-doesnt-live-long-enough.rs
lifetime-doesnt-live-long-enough.stderr	remove trailing dots	2023-10-08 10:06:17 +00:00
lifetime-elision-return-type-requires-explicit-lifetime.rs
lifetime-elision-return-type-requires-explicit-lifetime.stderr	Fix incorrect lifetime suggestion	2023-11-20 23:44:37 +00:00
lifetime-elision-return-type-trait.rs
lifetime-elision-return-type-trait.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
lifetime-mismatch-between-trait-and-impl.rs
lifetime-mismatch-between-trait-and-impl.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
lifetime-no-keyword.rs
lifetime-no-keyword.stderr
missing-lifetime-in-alias.rs
missing-lifetime-in-alias.stderr
nested-binder-print.rs
nested-binder-print.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
nested.rs
re-empty-in-error.rs
re-empty-in-error.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
shadow.rs
shadow.stderr
suggest-introducing-and-adding-missing-lifetime.fixed	improve the suggestion of generic_bound_failure	2023-10-08 09:56:57 +00:00
suggest-introducing-and-adding-missing-lifetime.rs
suggest-introducing-and-adding-missing-lifetime.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
undeclared-lifetime-used-in-debug-macro-issue-70152.rs
undeclared-lifetime-used-in-debug-macro-issue-70152.stderr
unnamed-closure-doesnt-life-long-enough-issue-67634.rs
unnamed-closure-doesnt-life-long-enough-issue-67634.stderr	Show number in error message even for one error	2023-11-24 19:15:52 +01:00
unusual-rib-combinations.rs	improve diagnostics and bless tests	2023-05-05 21:42:54 +01:00
unusual-rib-combinations.stderr	make adt_const_params feature suggestion more consistent with others and only suggest it when the type can probably work	2023-09-28 23:10:04 +00:00