Merging upstream version 1.73.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 47 insertions, 0 deletions

diff --git a/tests/ui/pattern/slice-patterns-ambiguity.rs b/tests/ui/pattern/slice-patterns-ambiguity.rs
new file mode 100644
index 000000000..0fe24b0e5
--- /dev/null
+++ b/tests/ui/pattern/slice-patterns-ambiguity.rs
@@ -0,0 +1,47 @@
+#![allow(unused_variables)]
+
+struct Zeroes;
+
+const ARR: [usize; 2] = [0; 2];
+const ARR2: [usize; 2] = [2; 2];
+
+impl Into<&'static [usize; 2]> for Zeroes {
+    fn into(self) -> &'static [usize; 2] {
+        &ARR
+    }
+}
+
+impl Into<&'static [usize]> for Zeroes {
+    fn into(self) -> &'static [usize] {
+        &ARR2
+    }
+}
+
+fn let_decl() {
+    let &[a, b] = Zeroes.into();
+}
+
+fn let_else() {
+    let &[a, b] = Zeroes.into() else {
+        //~^ ERROR type annotations needed
+        unreachable!();
+    };
+}
+
+fn if_let() {
+    if let &[a, b] = Zeroes.into() {
+        //~^ ERROR type annotations needed
+        unreachable!();
+    }
+}
+
+fn if_let_else() {
+    if let &[a, b] = Zeroes.into() {
+        //~^ ERROR type annotations needed
+        unreachable!();
+    } else {
+        unreachable!();
+    }
+}
+
+fn main() {}