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120 lines
4.7 KiB
Plaintext
120 lines
4.7 KiB
Plaintext
error: unexpected parentheses surrounding `match` arm pattern
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--> $DIR/feature-gate-guard-patterns.rs:10:9
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LL | (0 if guard(0)) => {},
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| ^ ^
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help: remove parentheses surrounding the pattern
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LL - (0 if guard(0)) => {},
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LL + 0 if guard(0) => {},
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error[E0425]: cannot find value `x` in this scope
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--> $DIR/feature-gate-guard-patterns.rs:21:22
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LL | let ((x if guard(x)) | x) = 0;
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| ^ not found in this scope
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error[E0425]: cannot find value `x` in this scope
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--> $DIR/feature-gate-guard-patterns.rs:38:45
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LL | fn even_as_function_parameters(((x if guard(x), _) | (_, x)): (i32, i32)) {}
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| ^
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help: the binding `x` is available in a different scope in the same function
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--> $DIR/feature-gate-guard-patterns.rs:21:11
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LL | let ((x if guard(x)) | x) = 0;
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| ^
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error[E0658]: guard patterns are experimental
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--> $DIR/feature-gate-guard-patterns.rs:16:15
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LL | (0 if guard(0)) | 1 => {},
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| ^^^^^^^^
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= note: see issue #129967 <https://github.com/rust-lang/rust/issues/129967> for more information
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= help: add `#![feature(guard_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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= help: consider using match arm guards
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error[E0658]: guard patterns are experimental
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--> $DIR/feature-gate-guard-patterns.rs:21:16
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LL | let ((x if guard(x)) | x) = 0;
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| ^^^^^^^^
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= note: see issue #129967 <https://github.com/rust-lang/rust/issues/129967> for more information
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= help: add `#![feature(guard_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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= help: consider using match arm guards
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error[E0658]: guard patterns are experimental
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--> $DIR/feature-gate-guard-patterns.rs:25:18
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LL | if let (x if guard(x)) = 0 {}
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| ^^^^^^^^
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= note: see issue #129967 <https://github.com/rust-lang/rust/issues/129967> for more information
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= help: add `#![feature(guard_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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= help: consider using match arm guards
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error[E0658]: guard patterns are experimental
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--> $DIR/feature-gate-guard-patterns.rs:29:21
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LL | while let (x if guard(x)) = 0 {}
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| ^^^^^^^^
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= note: see issue #129967 <https://github.com/rust-lang/rust/issues/129967> for more information
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= help: add `#![feature(guard_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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= help: consider using match arm guards
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error[E0658]: guard patterns are experimental
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--> $DIR/feature-gate-guard-patterns.rs:34:21
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LL | while let (x if guard(x)) = 0 {}
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| ^^^^^^^^
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= note: see issue #129967 <https://github.com/rust-lang/rust/issues/129967> for more information
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= help: add `#![feature(guard_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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= help: consider using match arm guards
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error[E0658]: guard patterns are experimental
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--> $DIR/feature-gate-guard-patterns.rs:38:39
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LL | fn even_as_function_parameters(((x if guard(x), _) | (_, x)): (i32, i32)) {}
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| ^^^^^^^^
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= note: see issue #129967 <https://github.com/rust-lang/rust/issues/129967> for more information
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= help: add `#![feature(guard_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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= help: consider using match arm guards
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warning: irrefutable `if let` pattern
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--> $DIR/feature-gate-guard-patterns.rs:25:8
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LL | if let (x if guard(x)) = 0 {}
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| ^^^^^^^^^^^^^^^^^^^^^^^
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= note: this pattern will always match, so the `if let` is useless
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= help: consider replacing the `if let` with a `let`
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= note: `#[warn(irrefutable_let_patterns)]` on by default
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warning: irrefutable `while let` pattern
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--> $DIR/feature-gate-guard-patterns.rs:29:11
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LL | while let (x if guard(x)) = 0 {}
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| ^^^^^^^^^^^^^^^^^^^^^^^
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= note: this pattern will always match, so the loop will never exit
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= help: consider instead using a `loop { ... }` with a `let` inside it
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error: aborting due to 9 previous errors; 2 warnings emitted
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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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