5c3e01a340
When writing a pattern to collect multiple entries of a slice in a
single binding, it is easy to misremember or typo the appropriate syntax
to do so, instead writing the experimental `X..` pattern syntax. When we
encounter a resolve error because `X` isn't available, we suggest
`X @ ..` as an alternative.
```
error[E0425]: cannot find value `rest` in this scope
--> $DIR/range-pattern-meant-to-be-slice-rest-pattern.rs:3:13
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LL | [1, rest..] => println!("{rest:?}"),
| ^^^^ not found in this scope
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help: if you meant to collect the rest of the slice in `rest`, use the at operator
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LL | [1, rest @ ..] => println!("{rest:?}"),
| +
```
Fix #88404.
31 lines
1.2 KiB
Plaintext
31 lines
1.2 KiB
Plaintext
error[E0425]: cannot find value `rest` in this scope
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--> $DIR/range-pattern-meant-to-be-slice-rest-pattern.rs:3:13
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LL | [1, rest..] => println!("{rest:?}"),
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| ^^^^ not found in this scope
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help: if you meant to collect the rest of the slice in `rest`, use the at operator
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LL | [1, rest @ ..] => println!("{rest:?}"),
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error[E0425]: cannot find value `rest` in this scope
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--> $DIR/range-pattern-meant-to-be-slice-rest-pattern.rs:3:35
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LL | [1, rest..] => println!("{rest:?}"),
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| ^^^^ not found in this scope
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error[E0658]: `X..` patterns in slices are experimental
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--> $DIR/range-pattern-meant-to-be-slice-rest-pattern.rs:3:13
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LL | [1, rest..] => println!("{rest:?}"),
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| ^^^^^^
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= note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
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= help: add `#![feature(half_open_range_patterns_in_slices)]` to the crate attributes to enable
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error: aborting due to 3 previous errors
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Some errors have detailed explanations: E0425, E0658.
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For more information about an error, try `rustc --explain E0425`.
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