87 lines
2.5 KiB
Rust
87 lines
2.5 KiB
Rust
// compile-flags: --test
|
|
|
|
#![allow(unused_mut, clippy::get_first, clippy::from_iter_instead_of_collect)]
|
|
#![warn(clippy::unwrap_used)]
|
|
#![deny(clippy::get_unwrap)]
|
|
|
|
use std::collections::BTreeMap;
|
|
use std::collections::HashMap;
|
|
use std::collections::VecDeque;
|
|
|
|
struct GetFalsePositive {
|
|
arr: [u32; 3],
|
|
}
|
|
|
|
impl GetFalsePositive {
|
|
fn get(&self, pos: usize) -> Option<&u32> {
|
|
self.arr.get(pos)
|
|
}
|
|
fn get_mut(&mut self, pos: usize) -> Option<&mut u32> {
|
|
self.arr.get_mut(pos)
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let mut boxed_slice: Box<[u8]> = Box::new([0, 1, 2, 3]);
|
|
let mut some_slice = &mut [0, 1, 2, 3];
|
|
let mut some_vec = vec![0, 1, 2, 3];
|
|
let mut some_vecdeque: VecDeque<_> = some_vec.iter().cloned().collect();
|
|
let mut some_hashmap: HashMap<u8, char> = HashMap::from_iter(vec![(1, 'a'), (2, 'b')]);
|
|
let mut some_btreemap: BTreeMap<u8, char> = BTreeMap::from_iter(vec![(1, 'a'), (2, 'b')]);
|
|
let mut false_positive = GetFalsePositive { arr: [0, 1, 2] };
|
|
|
|
{
|
|
// Test `get().unwrap()`
|
|
let _ = boxed_slice.get(1).unwrap();
|
|
let _ = some_slice.get(0).unwrap();
|
|
let _ = some_vec.get(0).unwrap();
|
|
let _ = some_vecdeque.get(0).unwrap();
|
|
let _ = some_hashmap.get(&1).unwrap();
|
|
let _ = some_btreemap.get(&1).unwrap();
|
|
#[allow(clippy::unwrap_used)]
|
|
let _ = false_positive.get(0).unwrap();
|
|
// Test with deref
|
|
let _: u8 = *boxed_slice.get(1).unwrap();
|
|
}
|
|
|
|
{
|
|
// Test `get_mut().unwrap()`
|
|
*boxed_slice.get_mut(0).unwrap() = 1;
|
|
*some_slice.get_mut(0).unwrap() = 1;
|
|
*some_vec.get_mut(0).unwrap() = 1;
|
|
*some_vecdeque.get_mut(0).unwrap() = 1;
|
|
// Check false positives
|
|
#[allow(clippy::unwrap_used)]
|
|
{
|
|
*some_hashmap.get_mut(&1).unwrap() = 'b';
|
|
*some_btreemap.get_mut(&1).unwrap() = 'b';
|
|
*false_positive.get_mut(0).unwrap() = 1;
|
|
}
|
|
}
|
|
|
|
{
|
|
// Test `get().unwrap().foo()` and `get_mut().unwrap().bar()`
|
|
let _ = some_vec.get(0..1).unwrap().to_vec();
|
|
let _ = some_vec.get_mut(0..1).unwrap().to_vec();
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod issue9612 {
|
|
// should not lint in `#[cfg(test)]` modules
|
|
#[test]
|
|
fn test_fn() {
|
|
let _a: u8 = 2.try_into().unwrap();
|
|
let _a: u8 = 3.try_into().expect("");
|
|
|
|
util();
|
|
}
|
|
|
|
fn util() {
|
|
let _a: u8 = 4.try_into().unwrap();
|
|
let _a: u8 = 5.try_into().expect("");
|
|
// should still warn
|
|
let _ = Box::new([0]).get(1).unwrap();
|
|
}
|
|
}
|