o j@sddlmZddlZddlZddlZddlZddlZddlZddl m Z ddl m Z ej r9ddlmZddlmZGdd d Zdd dZGdddeZdS)) annotationsN)date) http_date)Response)Appc@sVeZdZdZd"ddZd#d d Zd$ddZd%ddZd&ddZd'ddZ d(dd Z d!S)) JSONProvideraA standard set of JSON operations for an application. Subclasses of this can be used to customize JSON behavior or use different JSON libraries. To implement a provider for a specific library, subclass this base class and implement at least :meth:`dumps` and :meth:`loads`. All other methods have default implementations. To use a different provider, either subclass ``Flask`` and set :attr:`~flask.Flask.json_provider_class` to a provider class, or set :attr:`app.json ` to an instance of the class. :param app: An application instance. This will be stored as a :class:`weakref.proxy` on the :attr:`_app` attribute. .. versionadded:: 2.2 apprreturnNonecCst||_dS)N)weakrefproxy_app)selfr r/root/aizidognhua/tmp/workspace/projects/ec89d86c-575f-41c9-af57-ac45cbdbf775/venv/lib/python3.10/site-packages/flask/json/provider.py__init__&szJSONProvider.__init__objt.AnykwargsstrcKt)zSerialize data as JSON. :param obj: The data to serialize. :param kwargs: May be passed to the underlying JSON library. NotImplementedErrorrrrrrrdumps)zJSONProvider.dumpsfp t.IO[str]cKs||j|fi|dS)aSerialize data as JSON and write to a file. :param obj: The data to serialize. :param fp: A file opened for writing text. Should use the UTF-8 encoding to be valid JSON. :param kwargs: May be passed to the underlying JSON library. 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This is the same as the HTTP date format. - :class:`uuid.UUID` is serialized to a string. - :class:`dataclasses.dataclass` is passed to :func:`dataclasses.asdict`. - :class:`~markupsafe.Markup` (or any object with a ``__html__`` method) will call the ``__html__`` method to get a string. zt.Callable[[t.Any], t.Any]defaultTNz bool | Nonecompactr/rrrr rcKs<|d|j|d|j|d|jtj|fi|S)aISerialize data as JSON to a string. Keyword arguments are passed to :func:`json.dumps`. 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