Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

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

1 files changed, 45 insertions, 0 deletions

diff --git a/src/test/ui/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.rs b/src/test/ui/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.rs
new file mode 100644
index 000000000..a942d1f4c
--- /dev/null
+++ b/src/test/ui/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.rs
@@ -0,0 +1,45 @@
+#![feature(let_chains)]
+
+fn main() {
+    let _opt = Some(1i32);
+
+    #[cfg(FALSE)]
+    {
+        let _ = &&let Some(x) = Some(42);
+        //~^ ERROR expected expression, found `let` statement
+    }
+    #[cfg(FALSE)]
+    {
+        if let Some(elem) = _opt && [1, 2, 3][let _ = &&let Some(x) = Some(42)] = 1 {
+        //~^ ERROR expected expression, found `let` statement
+        //~| ERROR expected expression, found `let` statement
+            true
+        }
+    }
+
+    #[cfg(FALSE)]
+    {
+        if let Some(elem) = _opt && {
+            [1, 2, 3][let _ = ()];
+            //~^ ERROR expected expression, found `let` statement
+            true
+        } {
+        }
+    }
+
+    #[cfg(FALSE)]
+    {
+        if let Some(elem) = _opt && [1, 2, 3][let _ = ()] = 1 {
+        //~^ ERROR expected expression, found `let` statement
+            true
+        }
+    }
+    #[cfg(FALSE)]
+    {
+        if let a = 1 && {
+            let x = let y = 1;
+            //~^ ERROR expected expression, found `let` statement
+        } {
+        }
+    }
+}