Thomas Huth <th...@redhat.com> writes:

> On 16/01/2020 21.25, Markus Armbruster wrote:
>> Recent commit 3e7fb5811b "qapi: Fix code generation for empty modules"
>> modules" switched QAPISchema.visit() from
>> 
>>     for entity in self._entity_list:
>> 
>> effectively to
>> 
>>     for mod in self._module_dict.values():
>>         for entity in mod._entity_list:
>> 
>> Visits in the same order as long as .values() is in insertion order.
>> That's the case only for Python 3.6 and later.  Before, it's in some
>> arbitrary order, which results in broken generated code.
>> 
>> Fix by making self._module_dict an OrderedDict rather than a dict.
>> 
>> Fixes: 3e7fb5811baab213dcc7149c3aa69442d683c26c
>> Signed-off-by: Markus Armbruster <arm...@redhat.com>
>> ---
>>  scripts/qapi/schema.py | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/scripts/qapi/schema.py b/scripts/qapi/schema.py
>> index 0bfc5256fb..5100110fa2 100644
>> --- a/scripts/qapi/schema.py
>> +++ b/scripts/qapi/schema.py
>> @@ -795,7 +795,7 @@ class QAPISchema(object):
>>          self.docs = parser.docs
>>          self._entity_list = []
>>          self._entity_dict = {}
>> -        self._module_dict = {}
>> +        self._module_dict = OrderedDict()
>>          self._schema_dir = os.path.dirname(fname)
>>          self._make_module(None) # built-ins
>>          self._make_module(fname)
>> 
>
> Thanks, this fixes the problems on Travis for me!
>
> Tested-by: Thomas Huth <th...@redhat.com>
>
> Peter, could you maybe apply this directly to the master branch as a
> build fix?

The commit message isn't quite right: s/Visits in the same order/Visits
modules in the same order/.  Peter, want me to respin for that?


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