69 lines
1.9 KiB
Rust
69 lines
1.9 KiB
Rust
// run-rustfix
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#![allow(unused_mut, clippy::from_iter_instead_of_collect)]
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#![warn(clippy::unwrap_used)]
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#![deny(clippy::get_unwrap)]
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use std::collections::BTreeMap;
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use std::collections::HashMap;
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use std::collections::VecDeque;
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use std::iter::FromIterator;
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struct GetFalsePositive {
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arr: [u32; 3],
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}
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impl GetFalsePositive {
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fn get(&self, pos: usize) -> Option<&u32> {
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self.arr.get(pos)
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}
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fn get_mut(&mut self, pos: usize) -> Option<&mut u32> {
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self.arr.get_mut(pos)
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}
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}
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fn main() {
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let mut boxed_slice: Box<[u8]> = Box::new([0, 1, 2, 3]);
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let mut some_slice = &mut [0, 1, 2, 3];
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let mut some_vec = vec![0, 1, 2, 3];
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let mut some_vecdeque: VecDeque<_> = some_vec.iter().cloned().collect();
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let mut some_hashmap: HashMap<u8, char> = HashMap::from_iter(vec![(1, 'a'), (2, 'b')]);
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let mut some_btreemap: BTreeMap<u8, char> = BTreeMap::from_iter(vec![(1, 'a'), (2, 'b')]);
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let mut false_positive = GetFalsePositive { arr: [0, 1, 2] };
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{
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// Test `get().unwrap()`
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let _ = &boxed_slice[1];
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let _ = &some_slice[0];
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let _ = &some_vec[0];
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let _ = &some_vecdeque[0];
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let _ = &some_hashmap[&1];
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let _ = &some_btreemap[&1];
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#[allow(clippy::unwrap_used)]
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let _ = false_positive.get(0).unwrap();
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// Test with deref
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let _: u8 = boxed_slice[1];
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}
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{
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// Test `get_mut().unwrap()`
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boxed_slice[0] = 1;
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some_slice[0] = 1;
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some_vec[0] = 1;
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some_vecdeque[0] = 1;
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// Check false positives
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#[allow(clippy::unwrap_used)]
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{
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*some_hashmap.get_mut(&1).unwrap() = 'b';
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*some_btreemap.get_mut(&1).unwrap() = 'b';
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*false_positive.get_mut(0).unwrap() = 1;
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}
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}
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{
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// Test `get().unwrap().foo()` and `get_mut().unwrap().bar()`
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let _ = some_vec[0..1].to_vec();
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let _ = some_vec[0..1].to_vec();
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}
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}
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