'Constructor.
:param angr.knowledge.Function func: The function instance.'

def __init__(self, func):

    self.addr = func.addr
    self.vars = []
    self.name = func.name
    self.is_simprocedure = func.is_simprocedure
    self.sim_procedure = None
    if self.is_simprocedure:
        self.sim_procedure = func._project.hooked_by(self.addr)
