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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/tools/clippy/tests/ui/get_unwrap.fixed
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/tools/clippy/tests/ui/get_unwrap.fixed')
-rw-r--r--src/tools/clippy/tests/ui/get_unwrap.fixed67
1 files changed, 67 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/get_unwrap.fixed b/src/tools/clippy/tests/ui/get_unwrap.fixed
new file mode 100644
index 000000000..5827fc7d7
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+++ b/src/tools/clippy/tests/ui/get_unwrap.fixed
@@ -0,0 +1,67 @@
+// run-rustfix
+
+#![allow(unused_mut, clippy::from_iter_instead_of_collect, clippy::get_first)]
+#![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[1];
+ let _ = &some_slice[0];
+ let _ = &some_vec[0];
+ let _ = &some_vecdeque[0];
+ let _ = &some_hashmap[&1];
+ let _ = &some_btreemap[&1];
+ #[allow(clippy::unwrap_used)]
+ let _ = false_positive.get(0).unwrap();
+ // Test with deref
+ let _: u8 = boxed_slice[1];
+ }
+
+ {
+ // Test `get_mut().unwrap()`
+ boxed_slice[0] = 1;
+ some_slice[0] = 1;
+ some_vec[0] = 1;
+ some_vecdeque[0] = 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[0..1].to_vec();
+ let _ = some_vec[0..1].to_vec();
+ }
+}