rust/tests/ui/iter_nth_zero.fixed
Brad Sherman ab5ff0352e Add lint for iter.nth(0)
- Encourage iter.next() rather than iter.nth(0), which is less readable
2020-01-04 11:20:11 -06:00

32 lines
567 B
Rust

// run-rustfix
#![warn(clippy::iter_nth_zero)]
use std::collections::HashSet;
struct Foo {}
impl Foo {
fn nth(&self, index: usize) -> usize {
index + 1
}
}
fn main() {
let f = Foo {};
f.nth(0); // lint does not apply here
let mut s = HashSet::new();
s.insert(1);
let _x = s.iter().next();
let mut s2 = HashSet::new();
s2.insert(2);
let mut iter = s2.iter();
let _y = iter.next();
let mut s3 = HashSet::new();
s3.insert(3);
let mut iter2 = s3.iter();
let _unwrapped = iter2.next().unwrap();
}