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import inspect
from functools import partial
from .mountedtype import MountedType
class Dynamic(MountedType):
"""
A Dynamic Type let us get the type in runtime when we generate
the schema. So we can have lazy fields.
"""
def __init__(self, type_, with_schema=False, _creation_counter=None):
super(Dynamic, self).__init__(_creation_counter=_creation_counter)
assert inspect.isfunction(type_) or isinstance(type_, partial)
self.type = type_
self.with_schema = with_schema
def get_type(self, schema=None):
if schema and self.with_schema:
return self.type(schema=schema)
return self.type()
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