Pablo Galindo Salgado <pablog...@gmail.com> added the comment:
> Thanks! Do you have any plans for further inline caches? Yeah, we are experimenting with some ideas here: https://bugs.python.org/issue42115. > I was wondering if we could reverse the situation for slots again by adding > slots support to the LOAD_ATTR opcode inline cache... I think we can do it as long as we can detect easily if a given descriptor is immutable. The problem of mutability is this code: class Descriptor: pass class C: def __init__(self): self.x = 1 x = Descriptor() def f(o): return o.x o = C() for i in range(10000): assert f(o) == 1 Descriptor.__get__ = lambda self, instance, value: 2 Descriptor.__set__ = lambda *args: None print(f(o)) In this case, if we do not skip the cache for mutable descriptors, the code will not reflect the new result (2 instead of 1). __slots__ are immutable descriptors so we should be good as long as we can detect them. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue42093> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
