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Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2025-01-15 04:26
__init__.py	1.9 KB	-rw-r--r--	2022-12-23 20:56
__init__.pyi	15.46 KB	-rw-r--r--	2022-12-23 20:56
_cmp.py	4 KB	-rw-r--r--	2022-12-23 20:56
_cmp.pyi	399 B	-rw-r--r--	2022-12-23 20:56
_compat.py	5.31 KB	-rw-r--r--	2022-12-23 20:56
_config.py	826 B	-rw-r--r--	2022-12-23 20:56
_funcs.py	14.2 KB	-rw-r--r--	2022-12-23 20:56
_make.py	93.83 KB	-rw-r--r--	2022-12-23 20:56
_next_gen.py	5.92 KB	-rw-r--r--	2022-12-23 20:56
_typing_compat.pyi	469 B	-rw-r--r--	2022-12-23 20:56
_version_info.py	2.07 KB	-rw-r--r--	2022-12-23 20:56
_version_info.pyi	209 B	-rw-r--r--	2022-12-23 20:56
converters.py	3.52 KB	-rw-r--r--	2022-12-23 20:56
converters.pyi	406 B	-rw-r--r--	2022-12-23 20:56
exceptions.py	1.87 KB	-rw-r--r--	2022-12-23 20:56
exceptions.pyi	539 B	-rw-r--r--	2022-12-23 20:56
filters.py	1.01 KB	-rw-r--r--	2022-12-23 20:56
filters.pyi	215 B	-rw-r--r--	2022-12-23 20:56
py.typed	0 B	-rw-r--r--	2022-12-23 20:56
setters.py	1.37 KB	-rw-r--r--	2022-12-23 20:56
setters.pyi	567 B	-rw-r--r--	2022-12-23 20:56
validators.py	20.02 KB	-rw-r--r--	2022-12-23 20:56
validators.pyi	2.48 KB	-rw-r--r--	2022-12-23 20:56

Rename

# SPDX-License-Identifier: MIT

"""
Commonly used hooks for on_setattr.
"""

from . import _config
from .exceptions import FrozenAttributeError

def pipe(*setters):
    """
    Run all *setters* and return the return value of the last one.

.. versionadded:: 20.1.0
    """

def wrapped_pipe(instance, attrib, new_value):
        rv = new_value

for setter in setters:
            rv = setter(instance, attrib, rv)

return rv

return wrapped_pipe

def frozen(_, __, ___):
    """
    Prevent an attribute to be modified.

.. versionadded:: 20.1.0
    """
    raise FrozenAttributeError()

def validate(instance, attrib, new_value):
    """
    Run *attrib*'s validator on *new_value* if it has one.

.. versionadded:: 20.1.0
    """
    if _config._run_validators is False:
        return new_value

v = attrib.validator
    if not v:
        return new_value

v(instance, attrib, new_value)

return new_value

def convert(instance, attrib, new_value):
    """
    Run *attrib*'s converter -- if it has one --  on *new_value* and return the
    result.

.. versionadded:: 20.1.0
    """
    c = attrib.converter
    if c:
        return c(new_value)

return new_value

# Sentinel for disabling class-wide *on_setattr* hooks for certain attributes.
# autodata stopped working, so the docstring is inlined in the API docs.
NO_OP = object()