diff options
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/qapi/common.py | 15 | ||||
| -rw-r--r-- | scripts/qapi/types.py | 2 | ||||
| -rw-r--r-- | scripts/qapi/visit.py | 19 |
3 files changed, 24 insertions, 12 deletions
diff --git a/scripts/qapi/common.py b/scripts/qapi/common.py index 2462fc0291..4b53f08627 100644 --- a/scripts/qapi/common.py +++ b/scripts/qapi/common.py @@ -779,13 +779,6 @@ def check_union(expr, info): "enum '%s'" % (key, enum_define['enum'])) - # If discriminator is user-defined, ensure all values are covered - if enum_define: - for value in enum_define['data']: - if value not in members.keys(): - raise QAPISemError(info, "Union '%s' data missing '%s' branch" - % (name, value)) - def check_alternate(expr, info): name = expr['alternate'] @@ -1357,6 +1350,14 @@ class QAPISchemaObjectTypeVariants(object): self.tag_member = seen[c_name(self._tag_name)] assert self._tag_name == self.tag_member.name assert isinstance(self.tag_member.type, QAPISchemaEnumType) + if self._tag_name: # flat union + # branches that are not explicitly covered get an empty type + cases = set([v.name for v in self.variants]) + for val in self.tag_member.type.values: + if val.name not in cases: + v = QAPISchemaObjectTypeVariant(val.name, 'q_empty') + v.set_owner(self.tag_member.owner) + self.variants.append(v) for v in self.variants: v.check(schema) # Union names must match enum values; alternate names are diff --git a/scripts/qapi/types.py b/scripts/qapi/types.py index 64d9c0fb37..a599352e59 100644 --- a/scripts/qapi/types.py +++ b/scripts/qapi/types.py @@ -125,6 +125,8 @@ def gen_variants(variants): c_name=c_name(variants.tag_member.name)) for var in variants.variants: + if var.type.name == 'q_empty': + continue ret += mcgen(''' %(c_type)s %(c_name)s; ''', diff --git a/scripts/qapi/visit.py b/scripts/qapi/visit.py index 3c5ea1289e..bdcafb64ee 100644 --- a/scripts/qapi/visit.py +++ b/scripts/qapi/visit.py @@ -81,15 +81,24 @@ void visit_type_%(c_name)s_members(Visitor *v, %(c_name)s *obj, Error **errp) c_name=c_name(variants.tag_member.name)) for var in variants.variants: - ret += mcgen(''' + case_str = c_enum_const(variants.tag_member.type.name, + var.name, + variants.tag_member.type.prefix) + if var.type.name == 'q_empty': + # valid variant and nothing to do + ret += mcgen(''' + case %(case)s: + break; +''', + case=case_str) + else: + ret += mcgen(''' case %(case)s: visit_type_%(c_type)s_members(v, &obj->u.%(c_name)s, &err); break; ''', - case=c_enum_const(variants.tag_member.type.name, - var.name, - variants.tag_member.type.prefix), - c_type=var.type.c_name(), c_name=c_name(var.name)) + case=case_str, + c_type=var.type.c_name(), c_name=c_name(var.name)) ret += mcgen(''' default: |