Initial commit

.venv/lib/python3.9/site-packages/aiohttp/frozenlist.py

@@ -0,0 +1,72 @@
+from collections.abc import MutableSequence
+from functools import total_ordering
+
+from .helpers import NO_EXTENSIONS
+
+
+@total_ordering
+class FrozenList(MutableSequence):
+
+    __slots__ = ("_frozen", "_items")
+
+    def __init__(self, items=None):
+        self._frozen = False
+        if items is not None:
+            items = list(items)
+        else:
+            items = []
+        self._items = items
+
+    @property
+    def frozen(self):
+        return self._frozen
+
+    def freeze(self):
+        self._frozen = True
+
+    def __getitem__(self, index):
+        return self._items[index]
+
+    def __setitem__(self, index, value):
+        if self._frozen:
+            raise RuntimeError("Cannot modify frozen list.")
+        self._items[index] = value
+
+    def __delitem__(self, index):
+        if self._frozen:
+            raise RuntimeError("Cannot modify frozen list.")
+        del self._items[index]
+
+    def __len__(self):
+        return self._items.__len__()
+
+    def __iter__(self):
+        return self._items.__iter__()
+
+    def __reversed__(self):
+        return self._items.__reversed__()
+
+    def __eq__(self, other):
+        return list(self) == other
+
+    def __le__(self, other):
+        return list(self) <= other
+
+    def insert(self, pos, item):
+        if self._frozen:
+            raise RuntimeError("Cannot modify frozen list.")
+        self._items.insert(pos, item)
+
+    def __repr__(self):
+        return f"<FrozenList(frozen={self._frozen}, {self._items!r})>"
+
+
+PyFrozenList = FrozenList
+
+try:
+    from aiohttp._frozenlist import FrozenList as CFrozenList  # type: ignore
+
+    if not NO_EXTENSIONS:
+        FrozenList = CFrozenList  # type: ignore
+except ImportError:  # pragma: no cover
+    pass