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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Why .ads as well as .adb?
Date: Thu, 6 Jun 2019 16:17:37 -0500
Organization: JSA Research & Innovation
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Xref: reader01.eternal-september.org comp.lang.ada:56509
Date: 2019-06-06T16:17:37-05:00
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"Maciej Sobczak" <see.my.homepage@gmail.com> wrote in message 
news:4a0438de-1f1d-4469-aae4-908854d378ea@googlegroups.com...
...
>>> If your point is only that most present-day compilers are (internally)
>>> multi-pass, that is true, but I don't see the relevance.
>>
>> The relevance is that the argument about the difficulty the compiler 
>> might
>have when parsing interdependent files that have no separate specs is now
>not relevant. :-)

The difficulty of a compiler never was very relevant (it's *waaay* down a 
list of requirements). Of course, you are essentially saying that separate 
compilation is unnecessary and all of the source for a program should be in 
one giant file (it's certainly easier to edit and find things that way).

But of course that is nonsense, because of the value of compiling incomplete 
programs, the value of binary-only distributions, the value of separate 
programmers/teams working on carefully separated parts, and the value of 
reduced coupling.

                                             Randy.