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apply some __slots__ to pure python types #122

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apply some __slots__ to pure python types #122

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5 changes: 4 additions & 1 deletion immutables/map.py
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,7 @@ class _Unhashable:


class BitmapNode:
__slots__ = ("array", "bitmap", "mutid", "size")

def __init__(self, size, bitmap, array, mutid):
self.size = size
Expand Down Expand Up @@ -419,6 +420,7 @@ def __iter__(self):


class MapValues:
__slots__ = ("__count", "__root")

def __init__(self, c, m):
self.__count = c
Expand All @@ -432,6 +434,7 @@ def __iter__(self):


class MapItems:
__slots__ = ("__count", "__root")

def __init__(self, c, m):
self.__count = c
Expand All @@ -445,7 +448,7 @@ def __iter__(self):


class Map:

__slots__ = ("__weakref__", "__count", "__hash", "__root")
def __init__(self, *args, **kw):
if not args:
col = None
Expand Down