mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-18 09:03:18 +00:00
34 lines
788 B
Rust
34 lines
788 B
Rust
//@run-rustfix
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#![warn(clippy::comparison_to_empty)]
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#![allow(clippy::borrow_deref_ref, clippy::needless_if, clippy::useless_vec)]
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#![feature(let_chains)]
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fn main() {
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// Disallow comparisons to empty
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let s = String::new();
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let _ = s.is_empty();
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let _ = !s.is_empty();
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let v = vec![0];
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let _ = v.is_empty();
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let _ = !v.is_empty();
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if (*v).is_empty() {}
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let s = [0].as_slice();
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if s.is_empty() {}
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if s.is_empty() {}
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if s.is_empty() && s.is_empty() {}
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// Allow comparisons to non-empty
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let s = String::new();
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let _ = s == " ";
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let _ = s != " ";
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let v = vec![0];
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let _ = v == [0];
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let _ = v != [0];
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if let [0] = &*v {}
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let s = [0].as_slice();
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if let [0] = s {}
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if let [0] = &*s && s == [0] {}
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}
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