def visit(self, node):
self.code.append(LabelIL(self.cur_class, node.name, True))
#This has being push already before calling dispatch
# El self se adiciona en el class node
variables = Variables()
variables.add_var('self') #Self its alway the first parameter
for p in node.params:
variables.add_var(p.name)
variables.add_temp() # return address
self.visit(node.body, variables)
self.code.append(ReturnIL())
def visit(self, node, variables : Variables):
self.code.append(PushIL())
p = variables.add_var(node.name.value)
if node.expr != None:
self.visit(node.expr, variables)
r = variables.peek_last()
self.code.append(VarToVarIL(variables.id(p), variables.id(r) ))
variables.pop_var()
self.code.append(PopIL(1))
def create_constructor(self, attrs):
self.code.append(LabelIL(self.cur_class, 'Constructor', True))
variables = Variables()
variables.add_var('self')
variables.add_temp() # return address
for node in attrs:
if node.value == None:
continue
self.visit(node.value, variables)
p = variables.peek_last()
idx = self.vt.get_attr_id(self.cur_class, node.name.value)
self.code.append(VarToMemoIL(variables.id('self'), variables.id(p), idx))
variables.pop_var()
self.code.append(PopIL(1))
self.code.append(PushIL()) #No result, but needed in logic
self.code.append(ReturnIL())