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From: Bakin@MIT-MULTICS.ARPA ("David S. Bakin")
Newsgroups: net.lang.ada
Subject: USE clauses
Message-ID: <860806020842.796972@MIT-MULTICS.ARPA>
Date: Tue, 5-Aug-86 22:08:00 EDT
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Posted: Tue Aug  5 22:08:00 1986
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OK, this is just to let you know that the mail is piling up around here
on my question on use-clauses, with the current sentiment being not to use
them at all.  I'll summarize next week, but in the meantime, anyone who
sends me mail saying not to use use-clauses at all please include a
description of how you access user-defined operators.  Not how you should,
how you actually do.

By the way, I don't buy the arguments about code with use-clauses being
harder to read.  1)  You should be using an interactive tool to help you
understand your code (more about this in a later message, if anyone jumps
at the bait)  2)  I find it harder to read code that stretches across the
page and down across pages because of full qualification.

Anyway, keep those cards and letters coming, folks!

(For those of you who DO use use-clauses, please let me know how your
compiler fares with them!  At least one compiler spec sheet that I've
seen says it "processes withed packages at several thousand lines per
minute" which of course implies that it takes time to scan withed
packages instead of just having direct access in a library.  Does anyone
use a compiler whose time-to-compile grows based on the size of the
withed and/or used context?  And if so, how does it affect your programming
style?)

-- Dave (Bakin -at mit-multics)