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Newsgroups: comp.lang.ada
Subject: Re: Types,
 packages & objects : the good old naming conventions question (without
 religious ware)
References: 
 <561e0a4a-c6c0-42db-9f31-a70f4eae1ed9@a21g2000yqc.googlegroups.com>
 <hce79b$daf$1@aioe.org> <ygeocnohy02.fsf@hugsarin.sparre-andersen.dk>
 <u4ope4pqa.fsf@stephe-leake.org>
 <Xns9CB636112C917pcc482719gmailcom@198.186.192.137>
From: Stephen Leake <stephen_leake@stephe-leake.org>
Date: Wed, 04 Nov 2009 19:33:58 -0500
Message-ID: <u1vkdrert.fsf@stephe-leake.org>
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Date: 2009-11-04T19:33:58-05:00
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"Peter C. Chapin" <pcc482719@gmail.com> writes:

> Stephen Leake <stephen_leake@stephe-leake.org> wrote in 
> news:u4ope4pqa.fsf@stephe-leake.org:
>
>> Yes, but reading is also important. The _Type suffix is essentially
>> noise when reading; it's only there for the compiler, not the human.
>> So you want to read it as few times as possible, as well as write it
>> as few times as possible.
>
> This seems backwards to me. I could use a type name such as X72efY9 for all 
> the compiler cares. The _Type suffix is most definitely for the human. It 
> says, "Hey! This is the name of a type so keep that in mind when looking at 
> this code."

Well, you can read it that way. But the original reason the _Type
convention got started (at least, as far as I'm concerned) is to solve
the problem of overlapping object and type namespaces.

This is illegal:

    procedure (List : in list);

So we have to add noise to either the object or the type, to keep the
compiler happy. That's all there is to it.

> In the past I used _Type as a suffix for all of my types. However, there 
> are times when that doesn't seem to fit. After all the standard types don't 
> (usually) use a _Type suffix (Character, Integer, Positive, Vector, etc). 

The standard is Just Wrong. But we have to live with it.

-- 
-- Stephe