SHARING CODE THROUGH FIRST-CLASS ENVIRONMENTS

Nowadays the Net is one of the most obvious driving forces. Yet, to co nsider it as one global store through which values and code may be sha red is still immature. This paper suggests first-class environments as a means to achieve that goal in a multi-user Scheme framework. We pro pose two new special forms with a simple semantics. Our model allows p recise control over environments (including extensible environments) a nd does not require (but does not prevent) reflective operations.