File: unused-type-param-suggestion.rs

package info (click to toggle)
rustc 1.87.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 925,564 kB
  • sloc: xml: 158,127; python: 36,039; javascript: 19,761; sh: 19,737; cpp: 18,981; ansic: 13,133; asm: 4,376; makefile: 710; perl: 29; lisp: 28; ruby: 19; sql: 11
file content (27 lines) | stat: -rw-r--r-- 830 bytes parent folder | download | duplicates (11)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
#![crate_type="lib"]

struct S<N>;
//~^ ERROR type parameter `N` is never used
//~| HELP consider removing `N`
//~| HELP if you intended `N` to be a const parameter

// Ensure that we don't emit the const param suggestion here:
struct T<N: Copy>;
//~^ ERROR type parameter `N` is never used
//~| HELP consider removing `N`

type A<N> = ();
//~^ ERROR type parameter `N` is never used
//~| HELP consider removing `N`
//~| HELP if you intended `N` to be a const parameter

// Ensure that we don't emit the const param suggestion here:
type B<N: Copy> = ();
//~^ ERROR type parameter `N` is never used
//~| HELP consider removing `N`
type C<N: Sized> = ();
//~^ ERROR type parameter `N` is never used
//~| HELP consider removing `N`
type D<N: ?Sized> = ();
//~^ ERROR type parameter `N` is never used
//~| HELP consider removing `N`