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Python exercise
Evaluate Operator
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from dataclasses import dataclass
@dataclass
class Expression:
pass
@dataclass
class BinaryExpression(Expression):
operator: str
left: Expression
right: Expression
@dataclass
class IntegerExpression(Expression):
value: int
###### Edit below #################################################################
def evaluate_math(expression: Expression) -> int:
if isinstance(expression, IntegerExpression):
# In this base case, you *know* that expression is an IntegerExpression!
return ___
# In this recursive case, you *know* that expression is a BinaryExpression!
# ...
# ... Replace these comments with the real code!
# ...
return ___