| //@compile-flags: --test |
| |
| #![allow( |
| unused_mut, |
| clippy::get_first, |
| clippy::from_iter_instead_of_collect, |
| clippy::useless_vec |
| )] |
| #![warn(clippy::unwrap_used)] |
| #![warn(clippy::get_unwrap)] |
| |
| use std::collections::{BTreeMap, HashMap, 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(); |
| } |
| } |
| |
| #[test] |
| fn test() { |
| let boxed_slice: Box<[u8]> = Box::new([0, 1, 2, 3]); |
| let _ = boxed_slice.get(1).unwrap(); |
| } |
| |
| #[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(); |
| } |
| } |