52 lines
1.2 KiB
Rust
52 lines
1.2 KiB
Rust
#![warn(clippy::needless_character_iteration)]
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#![allow(clippy::map_identity, clippy::unnecessary_operation)]
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#[derive(Default)]
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struct S {
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field: &'static str,
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}
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impl S {
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fn field(&self) -> &str {
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self.field
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}
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}
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fn magic(_: char) {}
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fn main() {
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"foo".is_ascii();
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//~^ ERROR: checking if a string is ascii using iterators
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!"foo".is_ascii();
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//~^ ERROR: checking if a string is ascii using iterators
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"foo".is_ascii();
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//~^ ERROR: checking if a string is ascii using iterators
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!"foo".is_ascii();
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//~^ ERROR: checking if a string is ascii using iterators
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let s = String::new();
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s.is_ascii();
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//~^ ERROR: checking if a string is ascii using iterators
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!"foo".to_string().is_ascii();
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//~^ ERROR: checking if a string is ascii using iterators
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"foo".is_ascii();
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!"foo".is_ascii();
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S::default().field().is_ascii();
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//~^ ERROR: checking if a string is ascii using iterators
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// Should not lint!
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"foo".chars().all(|c| {
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let x = c;
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magic(x);
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x.is_ascii()
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});
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// Should not lint!
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"foo".chars().all(|c| c.is_ascii() && c.is_alphabetic());
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// Should not lint!
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"foo".chars().map(|c| c).all(|c| !char::is_ascii(&c));
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}
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