Re: Dybvig's module system and interactivity

[Mikael Djurfeldt]

[Will comment more on this letter, and on one from Dirk later.]

Mark Seaborn <address@hidden> writes:

> The way Dybig's units implementation links units is analagous to
> linking C programs by passing around structs of function pointers --
> there are more efficient ways of doing it (such as the way C linkers
> link), which could be exploited by the Scheme implementation.

Actually, the unit implementation in the paper is not adhering to the
semantics defined by Felleisen.  You'll find a version which does
adhere in Oscar Wadell's thesis:

  http://www.cs.indiana.edu/~owaddell/papers/thesis.ps.gz

It contains some explanation of the implementation and also
descriptions of the macro system, module system and their object
system.