projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 0531ce1d XL |
1 | #![allow(dead_code, non_camel_case_types)] |
| 2 | ||
| 3 | // Test that bounds on higher-kinded lifetime binders are rejected. | |
| 4 | ||
| 5 | fn bar1<'a, 'b>( | |
| 6 | x: &'a i32, | |
| 7 | y: &'b i32, | |
| 8 | f: for<'xa, 'xb: 'xa+'xa> fn(&'xa i32, &'xb i32) -> &'xa i32) | |
| 9 | //~^ ERROR lifetime bounds cannot be used in this context | |
| 10 | { | |
| 11 | // If the bound in f's type would matter, the call below would (have to) | |
| 12 | // be rejected. | |
| 13 | f(x, y); | |
| 14 | } | |
| 15 | ||
| 16 | fn bar2<'a, 'b, F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>( | |
| 17 | //~^ ERROR lifetime bounds cannot be used in this context | |
| 18 | x: &'a i32, | |
| 19 | y: &'b i32, | |
| 20 | f: F) | |
| 21 | { | |
| 22 | // If the bound in f's type would matter, the call below would (have to) | |
| 23 | // be rejected. | |
| 24 | f(x, y); | |
| 25 | } | |
| 26 | ||
| 27 | fn bar3<'a, 'b, F>( | |
| 28 | x: &'a i32, | |
| 29 | y: &'b i32, | |
| 30 | f: F) | |
| 31 | where F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32 | |
| 32 | //~^ ERROR lifetime bounds cannot be used in this context | |
| 33 | { | |
| 34 | // If the bound in f's type would matter, the call below would (have to) | |
| 35 | // be rejected. | |
| 36 | f(x, y); | |
| 37 | } | |
| 38 | ||
| 39 | fn bar4<'a, 'b, F>( | |
| 40 | x: &'a i32, | |
| 41 | y: &'b i32, | |
| 42 | f: F) | |
| 43 | where for<'xa, 'xb: 'xa> F: Fn(&'xa i32, &'xb i32) -> &'xa i32 | |
| 44 | //~^ ERROR lifetime bounds cannot be used in this context | |
| 45 | { | |
| 46 | // If the bound in f's type would matter, the call below would (have to) | |
| 47 | // be rejected. | |
| 48 | f(x, y); | |
| 49 | } | |
| 50 | ||
| 51 | struct S1<F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>(F); | |
| 52 | //~^ ERROR lifetime bounds cannot be used in this context | |
| 53 | struct S2<F>(F) where F: for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32; | |
| 54 | //~^ ERROR lifetime bounds cannot be used in this context | |
| 55 | struct S3<F>(F) where for<'xa, 'xb: 'xa> F: Fn(&'xa i32, &'xb i32) -> &'xa i32; | |
| 56 | //~^ ERROR lifetime bounds cannot be used in this context | |
| 57 | ||
| 58 | struct S_fnty(for<'xa, 'xb: 'xa> fn(&'xa i32, &'xb i32) -> &'xa i32); | |
| 59 | //~^ ERROR lifetime bounds cannot be used in this context | |
| 60 | ||
| dc9dc135 | 61 | type T1 = Box<dyn for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>; |
| 0531ce1d XL |
62 | //~^ ERROR lifetime bounds cannot be used in this context |
| 63 | ||
| 64 | fn main() { | |
| 65 | let _ : Option<for<'xa, 'xb: 'xa> fn(&'xa i32, &'xb i32) -> &'xa i32> = None; | |
| 66 | //~^ ERROR lifetime bounds cannot be used in this context | |
| dc9dc135 | 67 | let _ : Option<Box<dyn for<'xa, 'xb: 'xa> Fn(&'xa i32, &'xb i32) -> &'xa i32>> = None; |
| 0531ce1d XL |
68 | //~^ ERROR lifetime bounds cannot be used in this context |
| 69 | } |