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expr: use const-ness for put checking in CompExpr

This commit is contained in:
Shiz 2021-06-28 06:29:51 +02:00
parent 02f53b5096
commit 2294d992cf
1 changed files with 4 additions and 3 deletions
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7
sx/core/expr.py
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@ -246,15 +246,16 @@ class CompExpr(Expr[bool]):
return self.__op(peek(self.__left, pop=pop), peek(self.__right, pop=pop))
def _sx_put_(self, value: bool, pop: bool = True) -> None:
if not isinstance(self.__left, BaseExpr):
if is_const(self.__left):
operand = self.__left
target = self.__right
elif not isinstance(self.__right, BaseExpr):
elif is_const(self.__right):
operand = self.__right
target = self.__left
else:
raise NotImplementedError(f'{self.__class__.__name__} has two expression operands and is not invertible')
raise NotImplementedError(f'{self.__class__.__name__} has two non-const expression operands and is not invertible')
operand = get(operand, pop=pop)
if self.__op == operator.eq and value:
value = operand
elif self.__op == operator.ne and not value: