rustc/tests/ui/rfcs/rfc-1445-restrict-constants-in-patterns/match-requires-both-partialeq-and-eq.stderr
2025-02-17 11:14:05 +01:00

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error: constant of non-structural type `Foo` in a pattern
--> $DIR/match-requires-both-partialeq-and-eq.rs:19:9
|
LL | struct Foo {
| ---------- `Foo` must be annotated with `#[derive(PartialEq)]` to be usable in patterns
...
LL | const FOO: Foo = Foo { x: 0 };
| -------------- constant defined here
...
LL | FOO => { }
| ^^^ 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/match-requires-both-partialeq-and-eq.rs:8:1
|
LL | impl PartialEq for Foo {
| ^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 1 previous error