mirror of https://github.com/rust-lang/rust.git
21 lines
1.0 KiB
Plaintext
21 lines
1.0 KiB
Plaintext
error: constant of non-structural type `NoDerive` in a pattern
|
|
--> $DIR/cant-hide-behind-doubly-indirect-param.rs:22:9
|
|
|
|
|
LL | struct NoDerive(#[allow(dead_code)] i32);
|
|
| --------------- `NoDerive` must be annotated with `#[derive(PartialEq)]` to be usable in patterns
|
|
...
|
|
LL | const WRAP_DOUBLY_INDIRECT_PARAM: & &WrapParam<NoDerive> = & &WrapParam(& & NoDerive(0));
|
|
| -------------------------------------------------------- constant defined here
|
|
...
|
|
LL | WRAP_DOUBLY_INDIRECT_PARAM => { panic!("WRAP_DOUBLY_INDIRECT_PARAM matched itself"); }
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ constant of non-structural type
|
|
|
|
|
note: the `PartialEq` trait must be derived, manual `impl`s are not sufficient; see https://doc.rust-lang.org/stable/std/marker/trait.StructuralPartialEq.html for details
|
|
--> $DIR/cant-hide-behind-doubly-indirect-param.rs:11:1
|
|
|
|
|
LL | impl PartialEq for NoDerive { fn eq(&self, _: &Self) -> bool { false } }
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: aborting due to 1 previous error
|
|
|