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error[E0005]: refutable pattern in function argument
--> $DIR/refutable-pattern-errors.rs:1:9
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LL | fn func((1, (Some(1), 2..=3)): (isize, (Option<isize>, isize))) {}
| ^^^^^^^^^^^^^^^^^^^^^ patterns `(..=0_isize, _)` and `(2_isize.., _)` not covered
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= note: the matched value is of type `(isize, (Option<isize>, isize))`
error[E0005]: refutable pattern in local binding
--> $DIR/refutable-pattern-errors.rs:6:9
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LL | let (1, (Some(1), 2..=3)) = (1, (None, 2));
| ^^^^^^^^^^^^^^^^^^^^^ patterns `(i32::MIN..=0_i32, _)` and `(2_i32..=i32::MAX, _)` 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: the matched value is of type `(i32, (Option<i32>, i32))`
help: you might want to use `if let` to ignore the variants that aren't matched
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LL | if let (1, (Some(1), 2..=3)) = (1, (None, 2)) { todo!() };
| ++ +++++++++++
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0005`.
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