Merge pull request #4548 from rust-lang/rustup-2025-08-30

Automatic Rustup

1 files changed, 31 insertions, 0 deletions

diff --git a/tests/ui/array-slice-vec/fixed-length-vector-pattern-matching-7784.rs b/tests/ui/array-slice-vec/fixed-length-vector-pattern-matching-7784.rs
new file mode 100644
index 00000000000..7d987e92b63
--- /dev/null
+++ b/tests/ui/array-slice-vec/fixed-length-vector-pattern-matching-7784.rs
@@ -0,0 +1,31 @@
+// https://github.com/rust-lang/rust/issues/7784
+//@ run-pass
+
+use std::ops::Add;
+
+fn foo<T: Add<Output=T> + Clone>([x, y, z]: [T; 3]) -> (T, T, T) {
+    (x.clone(), x.clone() + y.clone(), x + y + z)
+}
+fn bar(a: &'static str, b: &'static str) -> [&'static str; 4] {
+    [a, b, b, a]
+}
+
+fn main() {
+    assert_eq!(foo([1, 2, 3]), (1, 3, 6));
+
+    let [a, b, c, d] = bar("foo", "bar");
+    assert_eq!(a, "foo");
+    assert_eq!(b, "bar");
+    assert_eq!(c, "bar");
+    assert_eq!(d, "foo");
+
+    let [a, _, _, d] = bar("baz", "foo");
+    assert_eq!(a, "baz");
+    assert_eq!(d, "baz");
+
+    let out = bar("baz", "foo");
+    let [a, xs @ .., d] = out;
+    assert_eq!(a, "baz");
+    assert_eq!(xs, ["foo", "foo"]);
+    assert_eq!(d, "baz");
+}