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interpreter.py
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interpreter.py
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from node_types import *
from defined_values import Number
class Interpreter:
def visit_node(self, node):
method_name = f'visit_{type(node).__name__}'
method = getattr(self, method_name)
return method(node)
def visit_NumNode(self, node):
return Number(node.value)
def visit_AddNode(self,node):
return Number(self.visit_node(node.node_a).value + self.visit_node(node.node_b).value)
def visit_SubNode(self,node):
return Number(self.visit_node(node.node_a).value - self.visit_node(node.node_b).value)
def visit_MulNode(self,node):
return Number(self.visit_node(node.node_a).value * self.visit_node(node.node_b).value)
def visit_DivideNode(self,node):
try:
return Number(self.visit_node(node.node_a).value / self.visit_node(node.node_b).value)
except:
print("Math error")
def visit_ExponentialNode(self, node):
return Number(self.visit_node(node.node_a).value ** self.visit_node(node.node_b).value)
def visit_PlusNode(self, node):
return self.visit_node(node.node_a)
def visit_MinusNode(self, node):
return Number(-(self.visit_node(node.node_a).value))