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Diffstat (limited to '')
-rw-r--r-- | src/doc/book/listings/ch18-patterns-and-matching/listing-18-08/output.txt | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/src/doc/book/listings/ch18-patterns-and-matching/listing-18-08/output.txt b/src/doc/book/listings/ch18-patterns-and-matching/listing-18-08/output.txt index 72274d07c..0fd5373b8 100644 --- a/src/doc/book/listings/ch18-patterns-and-matching/listing-18-08/output.txt +++ b/src/doc/book/listings/ch18-patterns-and-matching/listing-18-08/output.txt @@ -1,19 +1,19 @@ $ cargo run Compiling patterns v0.1.0 (file:///projects/patterns) error[E0005]: refutable pattern in local binding: `None` not covered - --> src/main.rs:3:9 - | -3 | let Some(x) = some_option_value; - | ^^^^^^^ pattern `None` 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 + --> src/main.rs:3:9 + | +3 | let Some(x) = some_option_value; + | ^^^^^^^ pattern `None` 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: `Option<i32>` defined here - = note: the matched value is of type `Option<i32>` + = note: the matched value is of type `Option<i32>` help: you might want to use `if let` to ignore the variant that isn't matched - | -3 | let x = if let Some(x) = some_option_value { x } else { todo!() }; - | ++++++++++ ++++++++++++++++++++++ + | +3 | let x = if let Some(x) = some_option_value { x } else { todo!() }; + | ++++++++++ ++++++++++++++++++++++ For more information about this error, try `rustc --explain E0005`. error: could not compile `patterns` due to previous error |