[PATCH v2 04/12] qapi/gen: assert that _start_if is not None in _wrap_ifcond

[John Snow]

We already assert this in end_if, but that's opaque to mypy. Do it in
_wrap_ifcond instead. Same effect at runtime, but mypy can now infer
the type in _wrap_ifcond's body.

Signed-off-by: John Snow <js...@redhat.com>
---
 scripts/qapi/gen.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/qapi/gen.py b/scripts/qapi/gen.py
index b40f18eee3c..a6dc991b1d0 100644
--- a/scripts/qapi/gen.py
+++ b/scripts/qapi/gen.py
@@ -130,11 +130,11 @@ def start_if(self, ifcond: List[str]) -> None:
         self._start_if = (ifcond, self._body, self._preamble)
 
     def end_if(self) -> None:
-        assert self._start_if
         self._wrap_ifcond()
         self._start_if = None
 
     def _wrap_ifcond(self) -> None:
+        assert self._start_if
         self._body = _wrap_ifcond(self._start_if[0],
                                   self._start_if[1], self._body)
         self._preamble = _wrap_ifcond(self._start_if[0],
-- 
2.26.2