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From: Simon Wright <simon@pushface.org>
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Subject: Re: Unreferenced parameters
Date: Thu, 04 Feb 2021 10:48:51 +0000
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"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:

> I recently discovered yet another reason. When building an
> encapsulated library, shoveling implementations inside the
> specification breaks the library interface because implementation
> packages must with-ed there. When with-ed from the bodies, as it
> should be, the library interface includes only what it really must.

This applies to any standalone library, I think.

Now you've pointed it out, I'll certainly avoid using an expression
function in a spec that requires me to 'with' (or 'private with')
another package that I wasn't going to 'with' anyway.