cfg_attr_multi: Basic implementation

Does not implement the warning or a feature flag.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/test/ui/conditional-compilation/cfg-attr-multi-false.rs b/src/test/ui/conditional-compilation/cfg-attr-multi-false.rs
new file mode 100644
index 00000000000..ff7a47e0839
--- /dev/null
+++ b/src/test/ui/conditional-compilation/cfg-attr-multi-false.rs
@@ -0,0 +1,19 @@
+// Test that cfg_attr doesn't emit any attributes when the
+// configuation variable is false. This mirrors `cfg-attr-multi-true.rs`
+
+// compile-pass
+
+#![warn(unused_must_use)]
+
+#[cfg_attr(any(), deprecated, must_use)]
+struct Struct {}
+
+impl Struct {
+    fn new() -> Struct {
+        Struct {}
+    }
+}
+
+fn main() {
+    Struct::new();
+}