fix running code

diff --git a/src/bigint_presentation_code/toom_cook.py b/src/bigint_presentation_code/toom_cook.py
index 50eb8043d1abbdaca7478c51c4c09cc14217a0f5..0c4e5b41202686fba2fe0d0b65ffa67646d6b797 100644 (file)
--- a/src/bigint_presentation_code/toom_cook.py
+++ b/src/bigint_presentation_code/toom_cook.py
@@ -7,10 +7,10 @@ the register allocator uses an algorithm based on:
 
 from abc import ABCMeta, abstractmethod
 from collections import defaultdict
-from enum import Enum, unique
+from enum import Enum, unique, EnumMeta
 from functools import lru_cache
 from typing import (Sequence, AbstractSet, Iterable, Mapping,
-                    TYPE_CHECKING, Sequence, TypeVar, Generic)
+                    TYPE_CHECKING, Sequence, Sized, TypeVar, Generic)
 
 from nmutil.plain_data import plain_data
 
@@ -21,12 +21,14 @@ else:
         return v
 
 
-@plain_data(frozen=True, unsafe_hash=True)
+class ABCEnumMeta(EnumMeta, ABCMeta):
+    pass
+
+
 class PhysLoc(metaclass=ABCMeta):
     __slots__ = ()
 
 
-@plain_data(frozen=True, unsafe_hash=True)
 class RegLoc(PhysLoc):
     __slots__ = ()
 
@@ -36,15 +38,9 @@ class RegLoc(PhysLoc):
         ...
 
 
-@plain_data(frozen=True, unsafe_hash=True)
-class GPRRangeOrStackLoc(PhysLoc):
+class GPRRangeOrStackLoc(PhysLoc, Sized):
     __slots__ = ()
 
-    @abstractmethod
-    def __len__(self):
-        # type: () -> int
-        ...
-
 
 GPR_COUNT = 128
 
@@ -119,7 +115,7 @@ SPECIAL_GPRS = GPRRange(0), GPRRange(1), GPRRange(2), GPRRange(13)
 
 @final
 @unique
-class XERBit(Enum, RegLoc):
+class XERBit(RegLoc, Enum, metaclass=ABCEnumMeta):
     CY = "CY"
 
     def conflicts(self, other):
@@ -131,7 +127,7 @@ class XERBit(Enum, RegLoc):
 
 @final
 @unique
-class GlobalMem(Enum, RegLoc):
+class GlobalMem(RegLoc, Enum, metaclass=ABCEnumMeta):
     """singleton representing all non-StackSlot memory -- treated as a single
     physical register for register allocation purposes.
     """