Add a test for malformed derive declaration input

Add a new test to highlight possible future regressions on malformed proc_macro_derive input. gcc/testsuite/ChangeLog: * rust/compile/proc_macro_derive_malformed.rs: New test. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
CohenArthur · Jul 20, 2023 · aaeeaa2 · aaeeaa2
1 parent 242f7a9
commit aaeeaa2
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/gcc/testsuite/rust/compile/proc_macro_derive_malformed.rs b/gcc/testsuite/rust/compile/proc_macro_derive_malformed.rs
@@ -0,0 +1,4 @@
+// { dg-additional-options "-frust-crate-type=proc-macro" }
+
+#[proc_macro_derive] // { dg-excess-errors "malformed 'proc_macro_derive' attribute input" }
+pub fn my_invalid_macro() {}