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//lib/python3/dist-packages/attr/setters.py

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# 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()

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__pycache__ DIR	-	drwxr-xr-x	2026-01-08 12:55:57	Edit Download recursive recursive
converters.py	3.54 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
converters.pyi	406 B	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
exceptions.py	1.93 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
exceptions.pyi	539 B	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
filters.py	1.44 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
filters.pyi	225 B	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
py.typed	0 B	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
setters.py	1.37 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
setters.pyi	567 B	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
validators.py	19.21 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
validators.pyi	2.52 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
_cmp.py	3.93 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
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_compat.py	2.48 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
_config.py	843 B	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
_funcs.py	16.77 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
_make.py	99.53 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
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_version_info.pyi	209 B	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
__init__.py	3.23 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive
__init__.pyi	16.58 KB	lrw-r--r--	2024-02-29 21:44:40	Edit Download recursive recursive

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