mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-18 10:48:36 +00:00
68 lines
2.4 KiB
Rust
68 lines
2.4 KiB
Rust
// run-rustfix
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#![allow(dead_code)]
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#![warn(clippy::search_is_some)]
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fn main() {
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let v = vec![3, 2, 1, 0, -1, -2, -3];
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let y = &&42;
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// Check `find().is_some()`, single-line case.
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let _ = v.iter().find(|&x| *x < 0).is_some();
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let _ = (0..1).find(|x| **y == *x).is_some(); // one dereference less
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let _ = (0..1).find(|x| *x == 0).is_some();
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let _ = v.iter().find(|x| **x == 0).is_some();
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// Check `position().is_some()`, single-line case.
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let _ = v.iter().position(|&x| x < 0).is_some();
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// Check `rposition().is_some()`, single-line case.
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let _ = v.iter().rposition(|&x| x < 0).is_some();
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let s1 = String::from("hello world");
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let s2 = String::from("world");
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// caller of `find()` is a `&`static str`
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let _ = "hello world".find("world").is_some();
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let _ = "hello world".find(&s2).is_some();
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let _ = "hello world".find(&s2[2..]).is_some();
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// caller of `find()` is a `String`
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let _ = s1.find("world").is_some();
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let _ = s1.find(&s2).is_some();
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let _ = s1.find(&s2[2..]).is_some();
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// caller of `find()` is slice of `String`
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let _ = s1[2..].find("world").is_some();
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let _ = s1[2..].find(&s2).is_some();
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let _ = s1[2..].find(&s2[2..]).is_some();
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}
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fn is_none() {
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let v = vec![3, 2, 1, 0, -1, -2, -3];
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let y = &&42;
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// Check `find().is_none()`, single-line case.
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let _ = v.iter().find(|&x| *x < 0).is_none();
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let _ = (0..1).find(|x| **y == *x).is_none(); // one dereference less
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let _ = (0..1).find(|x| *x == 0).is_none();
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let _ = v.iter().find(|x| **x == 0).is_none();
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// Check `position().is_none()`, single-line case.
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let _ = v.iter().position(|&x| x < 0).is_none();
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// Check `rposition().is_none()`, single-line case.
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let _ = v.iter().rposition(|&x| x < 0).is_none();
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let s1 = String::from("hello world");
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let s2 = String::from("world");
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// caller of `find()` is a `&`static str`
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let _ = "hello world".find("world").is_none();
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let _ = "hello world".find(&s2).is_none();
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let _ = "hello world".find(&s2[2..]).is_none();
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// caller of `find()` is a `String`
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let _ = s1.find("world").is_none();
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let _ = s1.find(&s2).is_none();
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let _ = s1.find(&s2[2..]).is_none();
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// caller of `find()` is slice of `String`
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let _ = s1[2..].find("world").is_none();
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let _ = s1[2..].find(&s2).is_none();
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let _ = s1[2..].find(&s2[2..]).is_none();
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}
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