We are using meta as a class variable, but union types use this as a mutable value which changes the value for the class, not the instance.
Use the empty string as the default/empty value for ease of typing. It is still false-ish, so it will work just fine. Signed-off-by: John Snow <js...@redhat.com> --- scripts/qapi/schema.py | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/scripts/qapi/schema.py b/scripts/qapi/schema.py index 55434f5c82..0201b42095 100644 --- a/scripts/qapi/schema.py +++ b/scripts/qapi/schema.py @@ -17,7 +17,6 @@ import os import re from collections import OrderedDict -from typing import Optional from .common import c_name, POINTER_SUFFIX from .error import QAPISourceError, QAPISemError @@ -32,8 +31,6 @@ def visit(self, visitor: 'QAPISchemaVisitor') -> None: class QAPISchemaEntity(Visitable): - meta: Optional[str] = None - def __init__(self, name: str, info, doc, ifcond=None, features=None): assert name is None or isinstance(name, str) for f in features or []: @@ -51,6 +48,15 @@ def __init__(self, name: str, info, doc, ifcond=None, features=None): self._ifcond = ifcond or [] self.features = features or [] self._checked = False + self._meta = '' + + @property + def meta(self) -> str: + return self._meta + + @meta.setter + def meta(self, value: str) -> None: + self._meta = value def c_name(self): return c_name(self.name) @@ -212,8 +218,6 @@ def describe(self): class QAPISchemaBuiltinType(QAPISchemaType): - meta = 'built-in' - def __init__(self, name, json_type, c_type): super().__init__(name, None, None) assert not c_type or isinstance(c_type, str) @@ -221,6 +225,7 @@ def __init__(self, name, json_type, c_type): 'value') self._json_type_name = json_type self._c_type_name = c_type + self._meta = 'built-in' def c_name(self): return self.name @@ -245,8 +250,6 @@ def visit(self, visitor): class QAPISchemaEnumType(QAPISchemaType): - meta = 'enum' - def __init__(self, name, info, doc, ifcond, features, members, prefix): super().__init__(name, info, doc, ifcond, features) for m in members: @@ -255,6 +258,7 @@ def __init__(self, name, info, doc, ifcond, features, members, prefix): assert prefix is None or isinstance(prefix, str) self.members = members self.prefix = prefix + self._meta = 'enum' def check(self, schema): super().check(schema) @@ -289,13 +293,12 @@ def visit(self, visitor): class QAPISchemaArrayType(QAPISchemaType): - meta = 'array' - def __init__(self, name, info, element_type): super().__init__(name, info, None) assert isinstance(element_type, str) self._element_type_name = element_type self.element_type = None + self._meta = 'array' def check(self, schema): super().check(schema) @@ -344,7 +347,7 @@ def __init__(self, name, info, doc, ifcond, features, # flat union has base, variants, and no local_members # simple union has local_members, variants, and no base super().__init__(name, info, doc, ifcond, features) - self.meta = 'union' if variants else 'struct' + self._meta = 'union' if variants else 'struct' assert base is None or isinstance(base, str) for m in local_members: assert isinstance(m, QAPISchemaObjectTypeMember) @@ -456,8 +459,6 @@ def visit(self, visitor): class QAPISchemaAlternateType(QAPISchemaType): - meta = 'alternate' - def __init__(self, name, info, doc, ifcond, features, variants): super().__init__(name, info, doc, ifcond, features) assert isinstance(variants, QAPISchemaVariants) @@ -465,6 +466,7 @@ def __init__(self, name, info, doc, ifcond, features, variants): variants.set_defined_in(name) variants.tag_member.set_defined_in(self.name) self.variants = variants + self._meta = 'alternate' def check(self, schema): super().check(schema) @@ -716,8 +718,6 @@ def __init__(self, name, info, typ, ifcond=None): class QAPISchemaCommand(QAPISchemaEntity): - meta = 'command' - def __init__(self, name, info, doc, ifcond, features, arg_type, ret_type, gen, success_response, boxed, allow_oob, allow_preconfig): @@ -733,6 +733,7 @@ def __init__(self, name, info, doc, ifcond, features, self.boxed = boxed self.allow_oob = allow_oob self.allow_preconfig = allow_preconfig + self._meta = 'command' def check(self, schema): super().check(schema) @@ -779,14 +780,13 @@ def visit(self, visitor): class QAPISchemaEvent(QAPISchemaEntity): - meta = 'event' - def __init__(self, name, info, doc, ifcond, features, arg_type, boxed): super().__init__(name, info, doc, ifcond, features) assert not arg_type or isinstance(arg_type, str) self._arg_type_name = arg_type self.arg_type = None self.boxed = boxed + self._meta = 'event' def check(self, schema): super().check(schema) -- 2.26.2