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-rw-r--r--tests/ui/const-generics/type-dependent/issue-67144-1.rs25
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/const-generics/type-dependent/issue-67144-1.rs b/tests/ui/const-generics/type-dependent/issue-67144-1.rs
new file mode 100644
index 000000000..27dd51de2
--- /dev/null
+++ b/tests/ui/const-generics/type-dependent/issue-67144-1.rs
@@ -0,0 +1,25 @@
+// check-pass
+struct X;
+
+impl X {
+ pub fn getn<const N: usize>(&self) -> [u8; N] {
+ getn::<N>()
+ }
+}
+
+fn getn<const N: usize>() -> [u8; N] {
+ unsafe {
+ std::mem::zeroed()
+ }
+}
+
+fn main() {
+ // works
+ let [a,b,c] = getn::<3>();
+
+ // cannot pattern-match on an array without a fixed length
+ let [a,b,c] = X.getn::<3>();
+
+ // mismatched types, expected array `[u8; 3]` found array `[u8; _]`
+ let arr: [u8; 3] = X.getn::<3>();
+}