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a21607d9b5
- `len` might produce different results than `count` - they don't have `contain` but `contains_key` method
28 lines
1.0 KiB
Rust
28 lines
1.0 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, HashMap, HashSet};
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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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}
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