Rollup merge of #103016 - nbdd0121:enum, r=pnkfelix

Ensure enum cast moves

Fix #102389

r? ``@pnkfelix``

2 files changed, 17 insertions, 0 deletions

diff --git a/src/test/ui/mir/issue-102389.rs b/src/test/ui/mir/issue-102389.rs
new file mode 100644
index 00000000000..8b27d5e5574
--- /dev/null
+++ b/src/test/ui/mir/issue-102389.rs
@@ -0,0 +1,8 @@
+enum Enum { A, B, C }
+
+fn func(inbounds: &Enum, array: &[i16; 3]) -> i16 {
+    array[*inbounds as usize]
+    //~^ ERROR [E0507]
+}
+
+fn main() {}
diff --git a/src/test/ui/mir/issue-102389.stderr b/src/test/ui/mir/issue-102389.stderr
new file mode 100644
index 00000000000..925dc258a4c
--- /dev/null
+++ b/src/test/ui/mir/issue-102389.stderr
@@ -0,0 +1,9 @@
+error[E0507]: cannot move out of `*inbounds` which is behind a shared reference
+  --> $DIR/issue-102389.rs:4:11
+   |
+LL |     array[*inbounds as usize]
+   |           ^^^^^^^^^ move occurs because `*inbounds` has type `Enum`, which does not implement the `Copy` trait
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0507`.