From 7c94d10a6ccc5a98a8eb52cead3f36f93258ab0b Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Mon, 31 Oct 2022 12:33:33 -0500
Subject: [PATCH] Make __getinitargs__ an abstractmethod
---
pymbolic/primitives.py | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/pymbolic/primitives.py b/pymbolic/primitives.py
index d267f83..5ad5eb0 100644
--- a/pymbolic/primitives.py
+++ b/pymbolic/primitives.py
@@ -21,6 +21,7 @@ THE SOFTWARE.
"""
from sys import intern
+from abc import ABC, abstractmethod
import pymbolic.traits as traits
@@ -180,7 +181,7 @@ def disable_subscript_by_getitem():
pass
-class Expression:
+class Expression(ABC):
"""Superclass for parts of a mathematical expression. Overrides operators
to implicitly construct :class:`Sum`, :class:`Product` and other expressions.
@@ -226,6 +227,10 @@ class Expression:
# {{{ init arg names (override by subclass)
+ @abstractmethod
+ def __getinitargs__(self):
+ pass
+
@property
def init_arg_names(self):
raise NotImplementedError
@@ -539,9 +544,6 @@ class Expression:
self._hash_value = self.get_hash()
return self._hash_value
- def __getinitargs__(self):
- raise NotImplementedError
-
def __getstate__(self):
return self.__getinitargs__()
--
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