rust-clippy/tests/ui/iter_skip_next.rs

38 lines
1.2 KiB
Rust

//@aux-build:option_helpers.rs
#![warn(clippy::iter_skip_next)]
#![allow(clippy::disallowed_names)]
#![allow(clippy::iter_nth)]
#![allow(clippy::useless_vec)]
#![allow(clippy::iter_out_of_bounds)]
#![allow(unused_mut, dead_code)]
extern crate option_helpers;
use option_helpers::IteratorFalsePositives;
/// Checks implementation of `ITER_SKIP_NEXT` lint
fn main() {
let some_vec = vec![0, 1, 2, 3];
let _ = some_vec.iter().skip(42).next();
let _ = some_vec.iter().cycle().skip(42).next();
let _ = (1..10).skip(10).next();
let _ = &some_vec[..].iter().skip(3).next();
let foo = IteratorFalsePositives { foo: 0 };
let _ = foo.skip(42).next();
let _ = foo.filter().skip(42).next();
// fix #8128
let test_string = "1|1 2";
let mut sp = test_string.split('|').map(|s| s.trim());
let _: Vec<&str> = sp.skip(1).next().unwrap().split(' ').collect();
if let Some(mut s) = Some(test_string.split('|').map(|s| s.trim())) {
let _: Vec<&str> = s.skip(1).next().unwrap().split(' ').collect();
};
fn check<T>(mut s: T)
where
T: Iterator<Item = String>,
{
let _: Vec<&str> = s.skip(1).next().unwrap().split(' ').collect();
}
}