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
28
|
error[E0005]: refutable pattern in local binding: `Helper::T(_, _)` not covered
--> $DIR/empty-never-array.rs:10:9
|
LL | let Helper::U(u) = Helper::T(t, []);
| ^^^^^^^^^^^^ pattern `Helper::T(_, _)` not covered
|
= note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant
= note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html
note: `Helper<T, U>` defined here
--> $DIR/empty-never-array.rs:4:5
|
LL | enum Helper<T, U> {
| ------
LL | T(T, [!; 0]),
| ^ not covered
= note: the matched value is of type `Helper<T, U>`
help: you might want to use `if let` to ignore the variant that isn't matched
|
LL | let u = if let Helper::U(u) = Helper::T(t, []) { u } else { todo!() };
| ++++++++++ ++++++++++++++++++++++
help: alternatively, you might want to use let else to handle the variant that isn't matched
|
LL | let Helper::U(u) = Helper::T(t, []) else { todo!() };
| ++++++++++++++++
error: aborting due to previous error
For more information about this error, try `rustc --explain E0005`.
|
