rust/tests/ui/get_last_with_len.rs

32 lines
597 B
Rust
Raw Normal View History

2019-05-21 00:01:21 +00:00
// run-rustfix
#![warn(clippy::get_last_with_len)]
fn dont_use_last() {
let x = vec![2, 3, 5];
let _ = x.get(x.len() - 1); // ~ERROR Use x.last()
}
fn indexing_two_from_end() {
let x = vec![2, 3, 5];
let _ = x.get(x.len() - 2);
}
fn index_into_last() {
let x = vec![2, 3, 5];
let _ = x[x.len() - 1];
}
fn use_last_with_different_vec_length() {
let x = vec![2, 3, 5];
let y = vec!['a', 'b', 'c'];
let _ = x.get(y.len() - 1);
}
fn main() {
dont_use_last();
indexing_two_from_end();
index_into_last();
use_last_with_different_vec_length();
}