27 lines
1.0 KiB
Plaintext
27 lines
1.0 KiB
Plaintext
error[E0005]: refutable pattern in local binding: `None` not covered
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--> $DIR/E0005.rs:3:9
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LL | let Some(y) = x;
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| ^^^^^^^ pattern `None` not covered
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= note: `let` bindings require an "irrefutable pattern", like a `struct` or an `enum` with only one variant
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= note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html
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note: `Option<i32>` defined here
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--> $SRC_DIR/core/src/option.rs:LL:COL
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::: $SRC_DIR/core/src/option.rs:LL:COL
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= note: not covered
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= note: the matched value is of type `Option<i32>`
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help: you might want to use `if let` to ignore the variant that isn't matched
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LL | let y = if let Some(y) = x { y } else { todo!() };
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| ++++++++++ ++++++++++++++++++++++
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help: alternatively, you might want to use let else to handle the variant that isn't matched
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LL | let Some(y) = x else { todo!() };
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| ++++++++++++++++
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0005`.
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