[Qemu-devel] [PATCH V6 02/10] qapi script: add check for duplicated key

[Wenchao Xia <xiawenc@linux.vnet.ibm.com>]

It is bad that same key was specified twice, especially when a union have
two branches with same condition. This patch can prevent it.

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
---
 scripts/qapi.py |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/scripts/qapi.py b/scripts/qapi.py
index aec6bbb..cf34768 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -116,6 +116,8 @@ class QAPISchema:
             if self.tok != ':':
                 raise QAPISchemaError(self, 'Expected ":"')
             self.accept()
+            if key in expr:
+                raise QAPISchemaError(self, 'Duplicated key "%s"' % key)
             expr[key] = self.get_expr(True)
             if self.tok == '}':
                 self.accept()
-- 
1.7.1