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Commit | Line | Data |
---|---|---|
ff7c6d11 | 1 | error[E0106]: missing lifetime specifier |
0731742a | 2 | --> $DIR/issue-19707.rs:3:28 |
ff7c6d11 | 3 | | |
532ac7d7 | 4 | LL | type Foo = fn(&u8, &u8) -> &u8; |
72b1a166 | 5 | | --- --- ^ expected named lifetime parameter |
ff7c6d11 XL |
6 | | |
7 | = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from argument 1 or argument 2 | |
72b1a166 FG |
8 | = note: for more information on higher-ranked polymorphism, visit https://doc.rust-lang.org/nomicon/hrtb.html |
9 | help: consider making the type lifetime-generic with a new `'a` lifetime | |
10 | | | |
11 | LL | type Foo = for<'a> fn(&'a u8, &'a u8) -> &'a u8; | |
12 | | ^^^^^^^ ^^^^^^ ^^^^^^ ^^^ | |
46de9a89 FG |
13 | help: consider introducing a named lifetime parameter |
14 | | | |
72b1a166 FG |
15 | LL | type Foo<'a> = fn(&'a u8, &'a u8) -> &'a u8; |
16 | | ^^^^ ^^^^^^ ^^^^^^ ^^^ | |
ff7c6d11 XL |
17 | |
18 | error[E0106]: missing lifetime specifier | |
0731742a | 19 | --> $DIR/issue-19707.rs:5:27 |
ff7c6d11 | 20 | | |
532ac7d7 | 21 | LL | fn bar<F: Fn(&u8, &u8) -> &u8>(f: &F) {} |
72b1a166 | 22 | | --- --- ^ expected named lifetime parameter |
ff7c6d11 XL |
23 | | |
24 | = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from argument 1 or argument 2 | |
72b1a166 FG |
25 | = note: for more information on higher-ranked polymorphism, visit https://doc.rust-lang.org/nomicon/hrtb.html |
26 | help: consider making the bound lifetime-generic with a new `'a` lifetime | |
27 | | | |
28 | LL | fn bar<F: for<'a> Fn(&'a u8, &'a u8) -> &'a u8>(f: &F) {} | |
29 | | ^^^^^^^ ^^^^^^ ^^^^^^ ^^^ | |
46de9a89 FG |
30 | help: consider introducing a named lifetime parameter |
31 | | | |
72b1a166 FG |
32 | LL | fn bar<'a, F: Fn(&'a u8, &'a u8) -> &'a u8>(f: &F) {} |
33 | | ^^^ ^^^^^^ ^^^^^^ ^^^ | |
ff7c6d11 XL |
34 | |
35 | error: aborting due to 2 previous errors | |
36 | ||
0531ce1d | 37 | For more information about this error, try `rustc --explain E0106`. |