mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-09-21 23:21:57 +00:00
36 lines
1.4 KiB
Rust
36 lines
1.4 KiB
Rust
// run-rustfix
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#![allow(unused, clippy::suspicious_map, clippy::iter_count)]
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use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, LinkedList};
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#[warn(clippy::needless_collect)]
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#[allow(unused_variables, clippy::iter_cloned_collect, clippy::iter_next_slice)]
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fn main() {
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let sample = [1; 5];
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let len = sample.iter().collect::<Vec<_>>().len();
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if sample.iter().collect::<Vec<_>>().is_empty() {
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// Empty
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}
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sample.iter().cloned().collect::<Vec<_>>().contains(&1);
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// #7164 HashMap's and BTreeMap's `len` usage should not be linted
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sample.iter().map(|x| (x, x)).collect::<HashMap<_, _>>().len();
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sample.iter().map(|x| (x, x)).collect::<BTreeMap<_, _>>().len();
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sample.iter().map(|x| (x, x)).collect::<HashMap<_, _>>().is_empty();
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sample.iter().map(|x| (x, x)).collect::<BTreeMap<_, _>>().is_empty();
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// Notice the `HashSet`--this should not be linted
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sample.iter().collect::<HashSet<_>>().len();
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// Neither should this
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sample.iter().collect::<BTreeSet<_>>().len();
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sample.iter().collect::<LinkedList<_>>().len();
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sample.iter().collect::<LinkedList<_>>().is_empty();
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sample.iter().cloned().collect::<LinkedList<_>>().contains(&1);
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sample.iter().collect::<LinkedList<_>>().contains(&&1);
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// `BinaryHeap` doesn't have `contains` method
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sample.iter().collect::<BinaryHeap<_>>().len();
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sample.iter().collect::<BinaryHeap<_>>().is_empty();
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}
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