diff options
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/qapi/schema.py | 140 |
1 files changed, 70 insertions, 70 deletions
diff --git a/scripts/qapi/schema.py b/scripts/qapi/schema.py index 9bdbfd5..c5b824f 100644 --- a/scripts/qapi/schema.py +++ b/scripts/qapi/schema.py @@ -719,20 +719,11 @@ class QAPISchemaAlternateType(QAPISchemaType): class QAPISchemaVariants: def __init__( self, - tag_name: Optional[str], info: QAPISourceInfo, - tag_member: Optional[QAPISchemaObjectTypeMember], variants: List[QAPISchemaVariant], ): - # Unions pass tag_name but not tag_member. - # Alternates pass tag_member but not tag_name. - # After check(), tag_member is always set. - assert bool(tag_member) != bool(tag_name) - assert (isinstance(tag_name, str) or - isinstance(tag_member, QAPISchemaObjectTypeMember)) - self._tag_name = tag_name self.info = info - self._tag_member = tag_member + self._tag_member: Optional[QAPISchemaObjectTypeMember] = None self.variants = variants @property @@ -749,58 +740,66 @@ class QAPISchemaVariants: v.set_defined_in(name) def check( - self, schema: QAPISchema, seen: Dict[str, QAPISchemaMember] + self, schema: QAPISchema, seen: Dict[str, QAPISchemaMember] ) -> None: - if self._tag_name: # union - # We need to narrow the member type: - tmp = seen.get(c_name(self._tag_name)) - assert tmp is None or isinstance(tmp, QAPISchemaObjectTypeMember) - self._tag_member = tmp - - base = "'base'" - # Pointing to the base type when not implicit would be - # nice, but we don't know it here - if not self._tag_member or self._tag_name != self._tag_member.name: - raise QAPISemError( - self.info, - "discriminator '%s' is not a member of %s" - % (self._tag_name, base)) - # Here we do: - assert self.tag_member.defined_in - base_type = schema.lookup_type(self.tag_member.defined_in) - assert base_type - if not base_type.is_implicit(): - base = "base type '%s'" % self.tag_member.defined_in - if not isinstance(self.tag_member.type, QAPISchemaEnumType): - raise QAPISemError( - self.info, - "discriminator member '%s' of %s must be of enum type" - % (self._tag_name, base)) - if self.tag_member.optional: - raise QAPISemError( - self.info, - "discriminator member '%s' of %s must not be optional" - % (self._tag_name, base)) - if self.tag_member.ifcond.is_present(): - raise QAPISemError( - self.info, - "discriminator member '%s' of %s must not be conditional" - % (self._tag_name, base)) - else: # alternate - assert self._tag_member - assert isinstance(self.tag_member.type, QAPISchemaEnumType) - assert not self.tag_member.optional - assert not self.tag_member.ifcond.is_present() - if self._tag_name: # union - # branches that are not explicitly covered get an empty type - assert self.tag_member.defined_in - cases = {v.name for v in self.variants} - for m in self.tag_member.type.members: - if m.name not in cases: - v = QAPISchemaVariant(m.name, self.info, - 'q_empty', m.ifcond) - v.set_defined_in(self.tag_member.defined_in) - self.variants.append(v) + for v in self.variants: + v.check(schema) + + +class QAPISchemaBranches(QAPISchemaVariants): + def __init__(self, + info: QAPISourceInfo, + variants: List[QAPISchemaVariant], + tag_name: str): + super().__init__(info, variants) + self._tag_name = tag_name + + def check( + self, schema: QAPISchema, seen: Dict[str, QAPISchemaMember] + ) -> None: + # We need to narrow the member type: + tmp = seen.get(c_name(self._tag_name)) + assert tmp is None or isinstance(tmp, QAPISchemaObjectTypeMember) + self._tag_member = tmp + + base = "'base'" + # Pointing to the base type when not implicit would be + # nice, but we don't know it here + if not self._tag_member or self._tag_name != self._tag_member.name: + raise QAPISemError( + self.info, + "discriminator '%s' is not a member of %s" + % (self._tag_name, base)) + # Here we do: + assert self.tag_member.defined_in + base_type = schema.lookup_type(self.tag_member.defined_in) + assert base_type + if not base_type.is_implicit(): + base = "base type '%s'" % self.tag_member.defined_in + if not isinstance(self.tag_member.type, QAPISchemaEnumType): + raise QAPISemError( + self.info, + "discriminator member '%s' of %s must be of enum type" + % (self._tag_name, base)) + if self.tag_member.optional: + raise QAPISemError( + self.info, + "discriminator member '%s' of %s must not be optional" + % (self._tag_name, base)) + if self.tag_member.ifcond.is_present(): + raise QAPISemError( + self.info, + "discriminator member '%s' of %s must not be conditional" + % (self._tag_name, base)) + # branches that are not explicitly covered get an empty type + assert self.tag_member.defined_in + cases = {v.name for v in self.variants} + for m in self.tag_member.type.members: + if m.name not in cases: + v = QAPISchemaVariant(m.name, self.info, + 'q_empty', m.ifcond) + v.set_defined_in(self.tag_member.defined_in) + self.variants.append(v) if not self.variants: raise QAPISemError(self.info, "union has no branches") for v in self.variants: @@ -834,20 +833,21 @@ class QAPISchemaVariants: v.type.check_clash(info, dict(seen)) -class QAPISchemaBranches(QAPISchemaVariants): - def __init__(self, - info: QAPISourceInfo, - variants: List[QAPISchemaVariant], - tag_name: str): - super().__init__(tag_name, info, None, variants) - - class QAPISchemaAlternatives(QAPISchemaVariants): def __init__(self, info: QAPISourceInfo, variants: List[QAPISchemaVariant], tag_member: QAPISchemaObjectTypeMember): - super().__init__(None, info, tag_member, variants) + super().__init__(info, variants) + self._tag_member = tag_member + + def check( + self, schema: QAPISchema, seen: Dict[str, QAPISchemaMember] + ) -> None: + super().check(schema, seen) + assert isinstance(self.tag_member.type, QAPISchemaEnumType) + assert not self.tag_member.optional + assert not self.tag_member.ifcond.is_present() class QAPISchemaMember: |