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56 lines
1.5 KiB
Python
56 lines
1.5 KiB
Python
from typing import TypeVar
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#from types import MappingProxyType
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from abc import ABCMeta, abstractmethod
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from ..utils import annotations_t
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from ..error import PatternError
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T = TypeVar('T', bound='Annotatable')
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I = TypeVar('I', bound='AnnotatableImpl')
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class Annotatable(metaclass=ABCMeta):
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"""
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Abstract class for all annotatable entities
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Annotations correspond to GDS/OASIS "properties"
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"""
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__slots__ = ()
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'''
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---- Properties
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'''
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@property
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@abstractmethod
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def annotations(self) -> annotations_t:
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"""
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Dictionary mapping annotation names to values
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"""
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pass
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class AnnotatableImpl(Annotatable, metaclass=ABCMeta):
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"""
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Simple implementation of `Annotatable`.
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"""
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__slots__ = ()
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_annotations: annotations_t
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""" Dictionary storing annotation name/value pairs """
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'''
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---- Non-abstract properties
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'''
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@property
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def annotations(self) -> annotations_t:
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return self._annotations
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# # TODO: Find a way to make sure the subclass implements Lockable without dealing with diamond inheritance or this extra hasattr
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# if hasattr(self, 'is_locked') and self.is_locked():
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# return MappingProxyType(self._annotations)
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@annotations.setter
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def annotations(self, annotations: annotations_t):
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if not isinstance(annotations, dict):
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raise PatternError(f'annotations expected dict, got {type(annotations)}')
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self._annotations = annotations
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