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[rustc.git] / src / test / ui / pattern / usefulness / refutable-pattern-errors.stderr

error[E0005]: refutable pattern in function argument: `(_, _)` not covered
  --> $DIR/refutable-pattern-errors.rs:1:9
   |
LL | fn func((1, (Some(1), 2..=3)): (isize, (Option<isize>, isize))) { }
   |         ^^^^^^^^^^^^^^^^^^^^^ pattern `(_, _)` not covered
   |
   = note: the matched value is of type `(isize, (Option<isize>, isize))`

error[E0005]: refutable pattern in local binding: `(i32::MIN..=0_i32, _)` and `(2_i32..=i32::MAX, _)` not covered
  --> $DIR/refutable-pattern-errors.rs:5:9
   |
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
   |
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`.