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714b29a17f
never patterns: Check bindings wrt never patterns Never patterns: - Shouldn't contain bindings since they never match anything; - Don't count when checking that or-patterns have consistent bindings. r? `@compiler-errors`
115 lines
4.0 KiB
Plaintext
115 lines
4.0 KiB
Plaintext
error: unexpected `,` in pattern
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--> $DIR/feature-gate-never_patterns.rs:33:16
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LL | Some(_),
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| ^
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help: try adding parentheses to match on a tuple...
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LL | (Some(_),)
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| + +
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help: ...or a vertical bar to match on multiple alternatives
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LL | Some(_) |
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error[E0658]: `!` patterns are experimental
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--> $DIR/feature-gate-never_patterns.rs:8:24
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LL | let (Ok(_x) | Err(&!)) = res.as_ref();
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| ^
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= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
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= help: add `#![feature(never_patterns)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0658]: `!` patterns are experimental
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--> $DIR/feature-gate-never_patterns.rs:14:13
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LL | !
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| ^
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= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
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= help: add `#![feature(never_patterns)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0658]: `!` patterns are experimental
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--> $DIR/feature-gate-never_patterns.rs:20:13
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LL | !
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| ^
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= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
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= help: add `#![feature(never_patterns)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0658]: `!` patterns are experimental
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--> $DIR/feature-gate-never_patterns.rs:25:13
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LL | ! => {}
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| ^
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= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
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= help: add `#![feature(never_patterns)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error: `match` arm with no body
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--> $DIR/feature-gate-never_patterns.rs:38:9
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LL | Some(_)
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| ^^^^^^^- help: add a body after the pattern: `=> todo!(),`
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error: `match` arm with no body
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--> $DIR/feature-gate-never_patterns.rs:43:9
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LL | Some(_) if false,
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| ^^^^^^^- help: add a body after the pattern: `=> todo!(),`
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error: `match` arm with no body
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--> $DIR/feature-gate-never_patterns.rs:45:9
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LL | Some(_) if false
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| ^^^^^^^- help: add a body after the pattern: `=> todo!(),`
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error[E0658]: `!` patterns are experimental
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--> $DIR/feature-gate-never_patterns.rs:50:13
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LL | Err(!),
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| ^
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= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
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= help: add `#![feature(never_patterns)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0658]: `!` patterns are experimental
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--> $DIR/feature-gate-never_patterns.rs:54:13
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LL | Err(!) if false,
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| ^
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= note: see issue #118155 <https://github.com/rust-lang/rust/issues/118155> for more information
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= help: add `#![feature(never_patterns)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error: `match` arm with no body
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--> $DIR/feature-gate-never_patterns.rs:64:9
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LL | Some(_)
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| ^^^^^^^- help: add a body after the pattern: `=> todo!(),`
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error: `match` arm with no body
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--> $DIR/feature-gate-never_patterns.rs:70:9
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LL | Some(_) if false
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| ^^^^^^^- help: add a body after the pattern: `=> todo!(),`
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error: a guard on a never pattern will never be run
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--> $DIR/feature-gate-never_patterns.rs:54:19
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LL | Err(!) if false,
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| ^^^^^ help: remove this guard
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error: aborting due to 13 previous errors
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For more information about this error, try `rustc --explain E0658`.
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