| import decimal |
| from typing import Any, Literal |
|
|
| def from_json( |
| json_data: bytes, |
| /, |
| *, |
| allow_inf_nan: bool = True, |
| cache_mode: Literal[True, False, "all", "keys", "none"] = "all", |
| partial_mode: Literal[True, False, "off", "on", "trailing-strings"] = False, |
| catch_duplicate_keys: bool = False, |
| float_mode: Literal["float", "decimal", "lossless-float"] = False, |
| ) -> Any: |
| """ |
| Parse input bytes into a JSON object. |
| |
| Arguments: |
| json_data: The JSON data to parse |
| allow_inf_nan: Whether to allow infinity (`Infinity` an `-Infinity`) and `NaN` values to float fields. |
| Defaults to True. |
| cache_mode: cache Python strings to improve performance at the cost of some memory usage |
| - True / 'all' - cache all strings |
| - 'keys' - cache only object keys |
| - False / 'none' - cache nothing |
| partial_mode: How to handle incomplete strings: |
| - False / 'off' - raise an exception if the input is incomplete |
| - True / 'on' - allow incomplete JSON but discard the last string if it is incomplete |
| - 'trailing-strings' - allow incomplete JSON, and include the last incomplete string in the output |
| catch_duplicate_keys: if True, raise an exception if objects contain the same key multiple times |
| float_mode: How to return floats: as a `float`, `Decimal` or `LosslessFloat` |
| |
| Returns: |
| Python object built from the JSON input. |
| """ |
|
|
| def cache_clear() -> None: |
| """ |
| Reset the string cache. |
| """ |
|
|
| def cache_usage() -> int: |
| """ |
| get the size of the string cache. |
| |
| Returns: |
| Size of the string cache in bytes. |
| """ |
|
|
|
|
| class LosslessFloat: |
| """ |
| Represents a float from JSON, by holding the underlying bytes representing a float from JSON. |
| """ |
| def __init__(self, json_float: bytes): |
| """Construct a LosslessFloat object from a JSON bytes slice""" |
|
|
| def as_decimal(self) -> decimal.Decimal: |
| """Construct a Python Decimal from the JSON bytes slice""" |
|
|
| def __float__(self) -> float: |
| """Construct a Python float from the JSON bytes slice""" |
|
|
| def __bytes__(self) -> bytes: |
| """Return the JSON bytes slice as bytes""" |
|
|
| def __str__(self): |
| """Return the JSON bytes slice as a string""" |
|
|
| def __repr__(self): |
| ... |
|
|
