mirror of
https://github.com/Lucas-V-L/lucasvl.nl.git
synced 2024-10-29 19:38:16 -05:00
243 lines
5.2 KiB
Python
243 lines
5.2 KiB
Python
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from __future__ import annotations
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from itertools import repeat
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from .._internal import _missing
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def is_immutable(self):
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raise TypeError(f"{type(self).__name__!r} objects are immutable")
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class ImmutableListMixin:
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"""Makes a :class:`list` immutable.
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.. versionadded:: 0.5
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:private:
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"""
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_hash_cache = None
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def __hash__(self):
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if self._hash_cache is not None:
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return self._hash_cache
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rv = self._hash_cache = hash(tuple(self))
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return rv
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def __reduce_ex__(self, protocol):
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return type(self), (list(self),)
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def __delitem__(self, key):
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is_immutable(self)
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def __iadd__(self, other):
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is_immutable(self)
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def __imul__(self, other):
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is_immutable(self)
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def __setitem__(self, key, value):
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is_immutable(self)
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def append(self, item):
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is_immutable(self)
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def remove(self, item):
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is_immutable(self)
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def extend(self, iterable):
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is_immutable(self)
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def insert(self, pos, value):
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is_immutable(self)
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def pop(self, index=-1):
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is_immutable(self)
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def reverse(self):
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is_immutable(self)
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def sort(self, key=None, reverse=False):
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is_immutable(self)
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class ImmutableDictMixin:
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"""Makes a :class:`dict` immutable.
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.. versionadded:: 0.5
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:private:
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"""
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_hash_cache = None
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@classmethod
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def fromkeys(cls, keys, value=None):
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instance = super().__new__(cls)
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instance.__init__(zip(keys, repeat(value)))
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return instance
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def __reduce_ex__(self, protocol):
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return type(self), (dict(self),)
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def _iter_hashitems(self):
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return self.items()
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def __hash__(self):
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if self._hash_cache is not None:
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return self._hash_cache
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rv = self._hash_cache = hash(frozenset(self._iter_hashitems()))
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return rv
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def setdefault(self, key, default=None):
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is_immutable(self)
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def update(self, *args, **kwargs):
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is_immutable(self)
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def pop(self, key, default=None):
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is_immutable(self)
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def popitem(self):
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is_immutable(self)
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def __setitem__(self, key, value):
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is_immutable(self)
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def __delitem__(self, key):
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is_immutable(self)
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def clear(self):
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is_immutable(self)
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class ImmutableMultiDictMixin(ImmutableDictMixin):
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"""Makes a :class:`MultiDict` immutable.
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.. versionadded:: 0.5
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:private:
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"""
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def __reduce_ex__(self, protocol):
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return type(self), (list(self.items(multi=True)),)
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def _iter_hashitems(self):
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return self.items(multi=True)
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def add(self, key, value):
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is_immutable(self)
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def popitemlist(self):
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is_immutable(self)
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def poplist(self, key):
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is_immutable(self)
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def setlist(self, key, new_list):
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is_immutable(self)
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def setlistdefault(self, key, default_list=None):
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is_immutable(self)
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class ImmutableHeadersMixin:
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"""Makes a :class:`Headers` immutable. We do not mark them as
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hashable though since the only usecase for this datastructure
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in Werkzeug is a view on a mutable structure.
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.. versionadded:: 0.5
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:private:
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"""
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def __delitem__(self, key, **kwargs):
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is_immutable(self)
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def __setitem__(self, key, value):
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is_immutable(self)
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def set(self, _key, _value, **kwargs):
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is_immutable(self)
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def setlist(self, key, values):
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is_immutable(self)
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def add(self, _key, _value, **kwargs):
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is_immutable(self)
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def add_header(self, _key, _value, **_kwargs):
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is_immutable(self)
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def remove(self, key):
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is_immutable(self)
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def extend(self, *args, **kwargs):
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is_immutable(self)
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def update(self, *args, **kwargs):
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is_immutable(self)
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def insert(self, pos, value):
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is_immutable(self)
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def pop(self, key=None, default=_missing):
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is_immutable(self)
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def popitem(self):
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is_immutable(self)
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def setdefault(self, key, default):
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is_immutable(self)
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def setlistdefault(self, key, default):
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is_immutable(self)
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def _calls_update(name):
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def oncall(self, *args, **kw):
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rv = getattr(super(UpdateDictMixin, self), name)(*args, **kw)
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if self.on_update is not None:
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self.on_update(self)
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return rv
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oncall.__name__ = name
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return oncall
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class UpdateDictMixin(dict):
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"""Makes dicts call `self.on_update` on modifications.
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.. versionadded:: 0.5
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:private:
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"""
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on_update = None
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def setdefault(self, key, default=None):
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modified = key not in self
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rv = super().setdefault(key, default)
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if modified and self.on_update is not None:
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self.on_update(self)
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return rv
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def pop(self, key, default=_missing):
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modified = key in self
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if default is _missing:
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rv = super().pop(key)
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else:
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rv = super().pop(key, default)
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if modified and self.on_update is not None:
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self.on_update(self)
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return rv
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__setitem__ = _calls_update("__setitem__")
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__delitem__ = _calls_update("__delitem__")
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clear = _calls_update("clear")
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popitem = _calls_update("popitem")
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update = _calls_update("update")
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