mirror of https://github.com/rust-lang/rust
116 lines
4.2 KiB
Plaintext
116 lines
4.2 KiB
Plaintext
error: leading irrefutable pattern in let chain
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--> $DIR/irrefutable-lets.rs:13:8
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LL | if let first = &opt && let Some(ref second) = first && let None = second.start {}
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| ^^^^^^^^^^^^^^^^
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= note: this pattern will always match
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= help: consider moving it outside of the construct
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note: the lint level is defined here
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--> $DIR/irrefutable-lets.rs:6:30
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LL | #![cfg_attr(disallowed, deny(irrefutable_let_patterns))]
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: irrefutable `if let` patterns
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--> $DIR/irrefutable-lets.rs:19:8
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LL | if let first = &opt && let (a, b) = (1, 2) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: these patterns 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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error: leading irrefutable pattern in let chain
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--> $DIR/irrefutable-lets.rs:22:8
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LL | if let first = &opt && let Some(ref second) = first && let None = second.start && let v = 0 {}
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| ^^^^^^^^^^^^^^^^
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= note: this pattern will always match
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= help: consider moving it outside of the construct
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error: trailing irrefutable pattern in let chain
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--> $DIR/irrefutable-lets.rs:22:87
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LL | if let first = &opt && let Some(ref second) = first && let None = second.start && let v = 0 {}
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| ^^^^^^^^^
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= note: this pattern will always match
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= help: consider moving it into the body
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error: trailing irrefutable patterns in let chain
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--> $DIR/irrefutable-lets.rs:26:37
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LL | if let Some(ref first) = opt && let second = first && let _third = second {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: these patterns will always match
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= help: consider moving them into the body
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error: leading irrefutable pattern in let chain
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--> $DIR/irrefutable-lets.rs:29:8
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LL | if let Range { start: local_start, end: _ } = (None..Some(1)) && let None = local_start {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: this pattern will always match
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= help: consider moving it outside of the construct
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error: leading irrefutable pattern in let chain
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--> $DIR/irrefutable-lets.rs:32:8
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LL | if let (a, b, c) = (Some(1), Some(1), Some(1)) && let None = Some(1) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: this pattern will always match
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= help: consider moving it outside of the construct
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error: leading irrefutable pattern in let chain
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--> $DIR/irrefutable-lets.rs:35:8
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LL | if let first = &opt && let None = Some(1) {}
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| ^^^^^^^^^^^^^^^^
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= note: this pattern will always match
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= help: consider moving it outside of the construct
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error: irrefutable `if let` guard patterns
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--> $DIR/irrefutable-lets.rs:44:28
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LL | Some(ref first) if let second = first && let _third = second && let v = 4 + 4 => {},
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: these patterns will always match, so the guard is useless
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= help: consider removing the guard and adding a `let` inside the match arm
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error: trailing irrefutable patterns in let chain
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--> $DIR/irrefutable-lets.rs:59:16
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LL | && let v = local_end && let w = v => {},
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: these patterns will always match
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= help: consider moving them into the body
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error: irrefutable `while let` patterns
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--> $DIR/irrefutable-lets.rs:68:11
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LL | while let first = &opt && let (a, b) = (1, 2) {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: these patterns 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: trailing irrefutable patterns in let chain
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--> $DIR/irrefutable-lets.rs:71:40
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LL | while let Some(ref first) = opt && let second = first && let _third = second {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: these patterns will always match
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= help: consider moving them into the body
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error: aborting due to 12 previous errors
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