mirror of
https://github.com/rust-lang/rust-clippy
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c051656c83
1. Fix the problem of manual_split_once changing the original behavior. 2. Add a new lint needless_splitn. changelog: Fix the problem of manual_split_once changing the original behavior and add a new lint needless_splitn.
75 lines
2.3 KiB
Text
75 lines
2.3 KiB
Text
error: `splitn` called with `0` splits
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--> $DIR/suspicious_splitn.rs:10:13
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LL | let _ = "a,b".splitn(0, ',');
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| ^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::suspicious-splitn` implied by `-D warnings`
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= note: the resulting iterator will always return `None`
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error: `rsplitn` called with `0` splits
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--> $DIR/suspicious_splitn.rs:11:13
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LL | let _ = "a,b".rsplitn(0, ',');
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| ^^^^^^^^^^^^^^^^^^^^^
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= note: the resulting iterator will always return `None`
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error: `splitn` called with `1` split
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--> $DIR/suspicious_splitn.rs:12:13
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LL | let _ = "a,b".splitn(1, ',');
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| ^^^^^^^^^^^^^^^^^^^^
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= note: the resulting iterator will always return the entire string followed by `None`
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error: `splitn` called with `0` splits
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--> $DIR/suspicious_splitn.rs:13:13
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LL | let _ = [0, 1, 2].splitn(0, |&x| x == 1);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: the resulting iterator will always return `None`
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error: `splitn_mut` called with `0` splits
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--> $DIR/suspicious_splitn.rs:14:13
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LL | let _ = [0, 1, 2].splitn_mut(0, |&x| x == 1);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: the resulting iterator will always return `None`
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error: `splitn` called with `1` split
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--> $DIR/suspicious_splitn.rs:15:13
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LL | let _ = [0, 1, 2].splitn(1, |&x| x == 1);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: the resulting iterator will always return the entire slice followed by `None`
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error: `rsplitn_mut` called with `1` split
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--> $DIR/suspicious_splitn.rs:16:13
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LL | let _ = [0, 1, 2].rsplitn_mut(1, |&x| x == 1);
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: the resulting iterator will always return the entire slice followed by `None`
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error: `splitn` called with `1` split
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--> $DIR/suspicious_splitn.rs:19:13
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LL | let _ = "a,b".splitn(X + 1, ',');
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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= note: the resulting iterator will always return the entire string followed by `None`
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error: `splitn` called with `0` splits
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--> $DIR/suspicious_splitn.rs:20:13
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LL | let _ = "a,b".splitn(X, ',');
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| ^^^^^^^^^^^^^^^^^^^^
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= note: the resulting iterator will always return `None`
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error: aborting due to 9 previous errors
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