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[mypyc] Fix interaction of Enum caching with _order_ #8120

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Merged
merged 3 commits into from
Dec 10, 2019
Merged

[mypyc] Fix interaction of Enum caching with _order_ #8120

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609256e
[mypyc] Fix interaction of Enum caching with _order_
msullivan Dec 10, 2019
06ee071
fix
msullivan Dec 10, 2019
c3e34b7
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msullivan Dec 10, 2019
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[mypyc] Fix interaction of Enum caching with _order_
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@msullivan
msullivan committed Dec 10, 2019
commit 609256e8e50a08632486d7deb0ffbb65f64a7650
6 changes: 5 additions & 1 deletion mypyc/genops.py
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Expand Up @@ -1445,7 +1445,11 @@ def add_non_ext_class_attr(self, non_ext: NonExtClassInfo, lvalue: NameExpr,
self.add_to_non_ext_dict(non_ext, lvalue.name, rvalue, stmt.line)
# We cache enum attributes to speed up enum attribute lookup since they
# are final.
if cdef.info.bases and cdef.info.bases[0].type.fullname == 'enum.Enum':
if (
cdef.info.bases
and cdef.info.bases[0].type.fullname == 'enum.Enum'
and lvalue.name != '_order_'
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Maybe add comment about why we skip _order_, since it's a pretty obscure thing (I had to look it up from the docs).

):
attr_to_cache.append(lvalue)

def setup_non_ext_dict(self, cdef: ClassDef, bases: Value) -> Value:
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1 change: 1 addition & 0 deletions mypyc/test-data/run-classes.test
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Expand Up @@ -126,6 +126,7 @@ assert o.get(20) == 20
from enum import Enum

class TestEnum(Enum):
_order_ = "a b"
a : int = 1
b : int = 2

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