mirror of https://github.com/rust-lang/rust
114 lines
4.7 KiB
Plaintext
114 lines
4.7 KiB
Plaintext
error[E0005]: refutable pattern in local binding
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--> $DIR/bad-pattern.rs:13:13
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LL | let 0 = v1;
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| ^ pattern `1_u32..=u32::MAX` 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: the matched value is of type `u32`
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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 | if let 0 = v1 { todo!() };
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| ++ +++++++++++
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help: alternatively, you could prepend the pattern with an underscore to define a new named variable; identifiers cannot begin with digits
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LL | let _0 = v1;
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| +
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error[E0005]: refutable pattern in local binding
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--> $DIR/bad-pattern.rs:14:14
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LL | let (0 | 1) = v1;
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| ^^^^^ pattern `2_u32..=u32::MAX` 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: the matched value is of type `u32`
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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 | if let (0 | 1) = v1 { todo!() };
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| ++ +++++++++++
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error[E0005]: refutable pattern in local binding
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--> $DIR/bad-pattern.rs:15:13
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LL | let 1.. = v1;
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| ^^^ pattern `0_u32` 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: the matched value is of type `u32`
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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 | if let 1.. = v1 { todo!() };
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| ++ +++++++++++
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error[E0005]: refutable pattern in local binding
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--> $DIR/bad-pattern.rs:16:13
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LL | let [0, 0, 0, 0] = v2;
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| ^^^^^^^^^^^^ pattern `[1_u32..=u32::MAX, _, _, _]` 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: the matched value is of type `[u32; 4]`
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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 | if let [0, 0, 0, 0] = v2 { todo!() };
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| ++ +++++++++++
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error[E0005]: refutable pattern in local binding
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--> $DIR/bad-pattern.rs:17:13
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LL | let [0] = v4;
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| ^^^ patterns `&[]` and `&[_, _, ..]` 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: the matched value is of type `&[u32]`
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help: you might want to use `if let` to ignore the variants that aren't matched
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LL | if let [0] = v4 { todo!() };
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| ++ +++++++++++
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error[E0005]: refutable pattern in local binding
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--> $DIR/bad-pattern.rs:18:13
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LL | let Refutable::A = v3;
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| ^^^^^^^^^^^^ pattern `Refutable::B` 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: `Refutable` defined here
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--> $DIR/bad-pattern.rs:4:6
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LL | enum Refutable {
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| ^^^^^^^^^
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LL | A,
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LL | B,
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| - not covered
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= note: the matched value is of type `Refutable`
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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 | if let Refutable::A = v3 { todo!() };
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| ++ +++++++++++
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error[E0005]: refutable pattern in local binding
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--> $DIR/bad-pattern.rs:19:13
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LL | let PAT = v1;
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| ^^^
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| |
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| pattern `1_u32..=u32::MAX` not covered
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| missing patterns are not covered because `PAT` is interpreted as a constant pattern, not a new variable
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| help: introduce a variable instead: `PAT_var`
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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: the matched value is of type `u32`
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error: aborting due to 7 previous errors
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For more information about this error, try `rustc --explain E0005`.
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