replace_mutator.py 文件源码

def visitDefault(self, node):
        for field in node._fields:
            value = getattr(node, field)

            if value in self.to_remove:
                setattr(node, field, self.new)

            if isinstance(value, (list, tuple)):
                for i, item in enumerate(value):
                    if item == self.old:
                        value[i] = self.new
                    elif isinstance(item, _ast.AST):
                        self.visit(item)
                    else:
                        pass
            elif isinstance(value, _ast.AST):
                self.visit(value)
            else:
                pass

        return