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, 34 insertions, 0 deletions

diff --git a/src/test/ui/proc-macro/expand-to-derive.rs b/src/test/ui/proc-macro/expand-to-derive.rs
new file mode 100644
index 000000000..ff2876e84
--- /dev/null
+++ b/src/test/ui/proc-macro/expand-to-derive.rs
@@ -0,0 +1,34 @@
+// check-pass
+// compile-flags: -Z span-debug --error-format human
+// aux-build:test-macros.rs
+
+#![feature(rustc_attrs)]
+
+#![no_std] // Don't load unnecessary hygiene information from std
+extern crate std;
+
+#[macro_use]
+extern crate test_macros;
+
+macro_rules! expand_to_derive {
+    ($item:item) => {
+        #[derive(Print)]
+        struct Foo {
+            #[cfg(FALSE)] removed: bool,
+            field: [bool; {
+                $item
+                0
+            }]
+        }
+    };
+}
+
+expand_to_derive! {
+    #[cfg_attr(not(FALSE), rustc_dummy)]
+    struct Inner {
+        #[cfg(FALSE)] removed_inner_field: bool,
+        other_inner_field: u8,
+    }
+}
+
+fn main() {}