Frame References

Consider this example of Sneklang scopes and stack frames:

msg1 = "This is in scope 1"


def outer_func():
    msg2 = "This is in scope 2"

    def inner_func():
        msg2 = "This is in scope 3"
        return

    return

In scope 2, we add msg2 to its referenced objects. Once again, this is a bit simplified from what you would do in a real, production-grade language, but the idea is the same.

Each stack frame needs to know about all of the objects that it references.