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qapi: add QAPISchemaIfCond.is_present()

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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210804083105.97531-4-marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Marc-André Lureau 2021-08-04 12:30:58 +04:00 • committed by Markus Armbruster
parent f17539c80d
commit 33aa3267ba
4 changed files with 12 additions and 9 deletions
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7
scripts/qapi/schema.py
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@ -29,6 +29,9 @@ class QAPISchemaIfCond:
def __init__(self, ifcond=None):
self.ifcond = ifcond or []
def is_present(self):
return bool(self.ifcond)
class QAPISchemaEntity:
meta: Optional[str] = None
@ -598,7 +601,7 @@ class QAPISchemaVariants:
self.info,
"discriminator member '%s' of %s must not be optional"
% (self._tag_name, base))
if self.tag_member.ifcond.ifcond:
if self.tag_member.ifcond.is_present():
raise QAPISemError(
self.info,
"discriminator member '%s' of %s must not be conditional"
@ -606,7 +609,7 @@ class QAPISchemaVariants:
else: # simple union
assert isinstance(self.tag_member.type, QAPISchemaEnumType)
assert not self.tag_member.optional
assert self.tag_member.ifcond.ifcond == []
assert not self.tag_member.ifcond.is_present()
if self._tag_name: # flat union
# branches that are not explicitly covered get an empty type
cases = {v.name for v in self.variants}