diff options
Diffstat (limited to 'src/tools/clippy/tests/ui/transmute_collection.rs')
-rw-r--r-- | src/tools/clippy/tests/ui/transmute_collection.rs | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/transmute_collection.rs b/src/tools/clippy/tests/ui/transmute_collection.rs new file mode 100644 index 000000000..5a431bee0 --- /dev/null +++ b/src/tools/clippy/tests/ui/transmute_collection.rs @@ -0,0 +1,50 @@ +#![warn(clippy::unsound_collection_transmute)] + +use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque}; +use std::mem::{transmute, MaybeUninit}; + +fn main() { + unsafe { + // wrong size + let _ = transmute::<_, Vec<u32>>(vec![0u8]); + // wrong layout + let _ = transmute::<_, Vec<[u8; 4]>>(vec![1234u32]); + + // wrong size + let _ = transmute::<_, VecDeque<u32>>(VecDeque::<u8>::new()); + // wrong layout + let _ = transmute::<_, VecDeque<u32>>(VecDeque::<[u8; 4]>::new()); + + // wrong size + let _ = transmute::<_, BinaryHeap<u32>>(BinaryHeap::<u8>::new()); + // wrong layout + let _ = transmute::<_, BinaryHeap<u32>>(BinaryHeap::<[u8; 4]>::new()); + + // wrong size + let _ = transmute::<_, BTreeSet<u32>>(BTreeSet::<u8>::new()); + // wrong layout + let _ = transmute::<_, BTreeSet<u32>>(BTreeSet::<[u8; 4]>::new()); + + // wrong size + let _ = transmute::<_, HashSet<u32>>(HashSet::<u8>::new()); + // wrong layout + let _ = transmute::<_, HashSet<u32>>(HashSet::<[u8; 4]>::new()); + + // wrong size + let _ = transmute::<_, BTreeMap<u8, u32>>(BTreeMap::<u8, u8>::new()); + let _ = transmute::<_, BTreeMap<u8, u32>>(BTreeMap::<u32, u32>::new()); + // wrong layout + let _ = transmute::<_, BTreeMap<u8, u32>>(BTreeMap::<u8, [u8; 4]>::new()); + let _ = transmute::<_, BTreeMap<u32, u32>>(BTreeMap::<[u8; 4], u32>::new()); + + // wrong size + let _ = transmute::<_, HashMap<u8, u32>>(HashMap::<u8, u8>::new()); + let _ = transmute::<_, HashMap<u8, u32>>(HashMap::<u32, u32>::new()); + // wrong layout + let _ = transmute::<_, HashMap<u8, u32>>(HashMap::<u8, [u8; 4]>::new()); + let _ = transmute::<_, HashMap<u32, u32>>(HashMap::<[u8; 4], u32>::new()); + + let _ = transmute::<_, Vec<u8>>(Vec::<MaybeUninit<u8>>::new()); + let _ = transmute::<_, Vec<*mut u32>>(Vec::<Box<u32>>::new()); + } +} |