def foobar():
@dataclass
class Foo:
foo: int
@dataclass
class Bar(DataClassDictMixin):
foo: Foo
foobar()
leads to this exception:
raise MissingField('foo',__main__.foobar.<locals>.Foo,cls) from None
There is the type_name helper function that may return a string containing <locals> if the type is defined in a function scope. This string may then be used inside the generated code. We need to come up with a general solution because type_name is used widely across all the code base. One way would be a wrapper for type_name helper in CodeBuilder:
def type_name(self, typ, *args, **kwargs) -> str:
name = type_name(typ, *args, **kwargs)
if "<locals>" in name:
name = clean_id(name)
self.ensure_object_imported(typ, name)
return name
Description
If someone puts dataclasses or other types inside a function, a syntax error will occur. This problem first reported in the following pull requests:
What I Did
This code:
leads to this exception:
There is the
type_namehelper function that may return a string containing<locals>if the type is defined in a function scope. This string may then be used inside the generated code. We need to come up with a general solution becausetype_nameis used widely across all the code base. One way would be a wrapper fortype_namehelper inCodeBuilder: