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""" |
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PRIVATE MODULE: do not import (from) it directly. |
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This module contains functionality for loading stuff from json. |
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""" |
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from typing import Type, List, Any, Dict, Callable |
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from jsons._common_impl import T |
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from jsons._dump_impl import dump |
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from jsons._load_impl import load |
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def transform( |
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obj: object, |
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cls: Type[T], |
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*, |
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mapper: Callable[[Dict[str, Any]], Dict[str, Any]] = None, |
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dump_cls: type = None, |
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dump_args: List[Any] = None, |
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dump_kwargs: List[Dict[str, Any]] = None, |
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**kwargs) -> T: |
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""" |
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Transform the given ``obj`` to an instance of ``cls``. |
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:param obj: the object that is to be transformed into a type of ``cls``. |
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:param cls: the type that ``obj`` is to be transformed into. |
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:param mapper: a callable that takes the dumped dict and returns a mapped |
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dict right before it is loaded into ``cls``. |
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:param dump_cls: the ``cls`` parameter that is given to ``dump``. |
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:param dump_args: the ``args`` parameter that is given to ``dump``. |
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:param dump_kwargs: the ``kwargs`` parameter that is given to ``dump``. |
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:param kwargs: any keyword arguments that are given to ``load``. |
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:return: an instance of ``cls``. |
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""" |
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dump_args_ = dump_args or [] |
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dump_kwargs_ = dump_kwargs or {} |
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dumped = dump(obj, dump_cls, *dump_args_, **dump_kwargs_) |
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mapper_ = mapper or (lambda x: x) |
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dumped_mapped = mapper_(dumped) |
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return load(dumped_mapped, cls, **kwargs) |
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ramonhagenaars /
jsons
