56194654c6
changelog: [`filter_next`]: suggest replacing `filter().next_back()` with `rfind()` for `DoubleEndedIterator` Signed-off-by: Zihan <zihanli0822@gmail.com>
25 lines
543 B
Rust
25 lines
543 B
Rust
#![warn(clippy::filter_next)]
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#![allow(clippy::useless_vec)]
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/// Checks implementation of `FILTER_NEXT` lint.
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fn main() {
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let v = vec![3, 2, 1, 0, -1, -2, -3];
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// Single-line case.
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let _ = v.iter().find(|&x| *x < 0);
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//~^ filter_next
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let _ = v.iter().rfind(|&x| *x < 0);
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//~^ filter_next
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}
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#[clippy::msrv = "1.27"]
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fn msrv_1_27() {
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let _ = vec![1].into_iter().rfind(|&x| x < 0);
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//~^ filter_next
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}
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#[clippy::msrv = "1.26"]
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fn msrv_1_26() {
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let _ = vec![1].into_iter().filter(|&x| x < 0).next_back();
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}
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