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-rw-r--r--src/test/ui/proc-macro/macro-rules-derive-cfg.rs31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/proc-macro/macro-rules-derive-cfg.rs b/src/test/ui/proc-macro/macro-rules-derive-cfg.rs
new file mode 100644
index 000000000..a221b9578
--- /dev/null
+++ b/src/test/ui/proc-macro/macro-rules-derive-cfg.rs
@@ -0,0 +1,31 @@
+// check-pass
+// compile-flags: -Z span-debug --error-format human
+// aux-build:test-macros.rs
+
+#![feature(rustc_attrs)]
+#![feature(stmt_expr_attributes)]
+
+#![no_std] // Don't load unnecessary hygiene information from std
+extern crate std;
+
+#[macro_use]
+extern crate test_macros;
+
+macro_rules! produce_it {
+ ($expr:expr) => {
+ #[derive(Print)]
+ struct Foo {
+ val: [bool; {
+ let a = #[cfg_attr(not(FALSE), rustc_dummy(first))] $expr;
+ 0
+ }]
+ }
+ }
+}
+
+produce_it!(#[cfg_attr(not(FALSE), rustc_dummy(second))] {
+ #![cfg_attr(not(FALSE), allow(unused))]
+ 30
+});
+
+fn main() {}