1 files changed, 8 insertions, 0 deletions
diff --git a/ipc/ipdl/test/ipdl/error/syncParentToChild.ipdl b/ipc/ipdl/test/ipdl/error/syncParentToChild.ipdl
new file mode 100644
index 0000000000..bd6c8bc5b1
--- /dev/null
+++ b/ipc/ipdl/test/ipdl/error/syncParentToChild.ipdl
@@ -0,0 +1,8 @@
+//error: sync parent-to-child messages are verboten (here, message `Msg' in protocol `syncParentToChild')
+
+intr protocol syncParentToChild {
+
+    // can't declare sync parent-to-child messages
+child: sync Msg();
+
+};