On Tue, Feb 20, 2018 at 3:35 PM, Robert Goldman rpgoldman@sift.info wrote:
This does seem to illustrate an issue with the current "export everything that's in UIOP" strategy.
Should we consider changing this policy?
1- UIOP reexports everything that individual subpackages of UIOP export. I believe that's a simple and good policy. If a helper must remain private, don't export it in the subpackage. 2- UIOP/PACKAGE is special, in that it is defined by defpackage (for bootstrap reasons), and that therefore to portably ensure upgradability, the list of symbols it exports MAY NEVER CHANGE, EVER. No adds, no deletes, no renames. No change. If you need any change, define and export a different package. Or use defpackage to define an empty package or constant package, then define-package to import-from and reexport from it.
Or, if we have "internal" functions that we don't want to be visible through UIOP/DRIVER, should we simply not export them from the sub-packages and use :import-from to move them among the sub-packages?
Yes, that's the idea so far.
Also, we've moved symbols within UIOP in the past, and the UIOP/subpackage names aren't stable. If you're using a utility in UIOP, use UIOP: as a symbol prefix, don't use the symbol from its current subpackage.
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