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

[Wenchao Xia]

于 2014/2/13 23:14, Markus Armbruster 写道:
> Wenchao Xia <address@hidden> writes:
> 
>> 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 <address@hidden>
>> Reviewed-by: Eric Blake <address@hidden>
>> ---
>>   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()
> 
> All errors should have a test in tests/qapi-schema/.  I can try to add
> tests for you when I rebase your 09/10.
> 
  I considered error path test before but didn't find a good place to
go. It would be great if you can add one.