124 lines
2.8 KiB
Python
124 lines
2.8 KiB
Python
import json
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from collections.abc import Callable
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from typing import (
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Any,
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Generic,
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Optional,
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Type,
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TypeVar,
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Union,
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final,
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overload,
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)
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from mashumaro.codecs._builder import CodecCodeBuilder
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from mashumaro.core.meta.helpers import get_args
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from mashumaro.dialect import Dialect
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T = TypeVar("T")
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EncodedData = Union[str, bytes, bytearray]
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class JSONDecoder(Generic[T]):
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@overload
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def __init__(
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self,
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shape_type: Type[T],
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*,
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default_dialect: Optional[Type[Dialect]] = None,
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pre_decoder_func: Callable[[EncodedData], Any] = json.loads,
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): ...
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@overload
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def __init__(
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self,
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shape_type: Any,
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*,
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default_dialect: Optional[Type[Dialect]] = None,
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pre_decoder_func: Callable[[EncodedData], Any] = json.loads,
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): ...
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def __init__(
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self,
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shape_type: Union[Type[T], Any],
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*,
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default_dialect: Optional[Type[Dialect]] = None,
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pre_decoder_func: Callable[[EncodedData], Any] = json.loads,
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):
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code_builder = CodecCodeBuilder.new(
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type_args=get_args(shape_type), default_dialect=default_dialect
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)
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code_builder.add_decode_method(shape_type, self, pre_decoder_func)
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@final
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def decode(self, data: EncodedData) -> T: ...
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class JSONEncoder(Generic[T]):
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@overload
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def __init__(
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self,
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shape_type: Type[T],
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*,
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default_dialect: Optional[Type[Dialect]] = None,
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post_encoder_func: Callable[[Any], str] = json.dumps,
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): ...
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@overload
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def __init__(
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self,
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shape_type: Any,
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*,
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default_dialect: Optional[Type[Dialect]] = None,
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post_encoder_func: Callable[[Any], str] = json.dumps,
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): ...
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def __init__(
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self,
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shape_type: Union[Type[T], Any],
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*,
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default_dialect: Optional[Type[Dialect]] = None,
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post_encoder_func: Callable[[Any], str] = json.dumps,
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):
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code_builder = CodecCodeBuilder.new(
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type_args=get_args(shape_type), default_dialect=default_dialect
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)
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code_builder.add_encode_method(shape_type, self, post_encoder_func)
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@final
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def encode(self, obj: T) -> str: ...
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def json_decode(
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data: EncodedData,
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shape_type: Union[Type[T], Any],
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pre_decoder_func: Callable[[EncodedData], Any] = json.loads,
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) -> T:
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return JSONDecoder(shape_type, pre_decoder_func=pre_decoder_func).decode(
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data
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)
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def json_encode(
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obj: T,
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shape_type: Union[Type[T], Any],
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post_encoder_func: Callable[[Any], str] = json.dumps,
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) -> str:
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return JSONEncoder(shape_type, post_encoder_func=post_encoder_func).encode(
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obj
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)
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decode = json_decode
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encode = json_encode
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__all__ = [
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"JSONDecoder",
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"JSONEncoder",
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"json_decode",
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"json_encode",
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"decode",
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"encode",
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]
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