[fpc-pascal] Re: [Bulk] Re: Namespaces Support

[leledumbo]

> The packages are defined using directories. Is Java a mess too? 

Yes, exactly, that's what makes Java package system messy. It makes refactoring (or restructurization) extremely difficult for deep package hierarchy.




On Tuesday, November 5, 2013 6:37 PM, Marcos Douglas [via Free Pascal - General] <ml-node+s1045716n5717420h82 at n5.nabble.com> wrote:
 
On Mon, Nov 4, 2013 at 10:44 PM, Dmitry Boyarintsev 
><[hidden email]> wrote: 
>> On Mon, Nov 4, 2013 at 6:07 PM, Marcos Douglas <[hidden email]> wrote: 
>>> 
>>> Sorry, but this is boring. 
>>> Do you not agree that is much better propose a solution to be possible 
>>> to use two -- or more -- units that have the same name but works 
>>> together at the same project? 
>> 
>> Thought process is a boring thing in nature - it supposed to exhaust brain. 
>
>=) 
>
>> I definitely disagree on benefit of that. Since it opens door not bring a 
>> unit name from a source to command-line. 
>> You'll have a project of 10 Classes.pas and you'll define their actual name 
>> in command line: 
>> fpc -ALIAS/graphics/classes.pas Graphics -ALIAS/audio/classes.pas audio 
>> -ALIAS/math/classes.pas 
>> 
>> On another project the same unit, might get another alias: 
>> fpc -ALIAS/graphics/classes.pas Graph -ALIAS/audio/classes.pas sounds 
>
>But in Java we have the "same" feature. A project can point to 
>com.company.foo.lib.MyClass but another project can use only 
>lib.MyClass. 
>The packages are defined using directories. Is Java a mess too? 
>
>IMHO, my proposal is more flexible than Java because we won't have a 
>"hard code" for path like Java does. Only the compiler will know about 
>it, not the sources. 
>
>> So management of this kind of projects and libraries turns into a funny 
>> process. 
>
>The big difference is that we are talking about our projects, not 
>3rd-party libraries. 
>You -- or the company where you works -- will decide what names will 
>be better than others, etc. 
>
>> From that point of view name spaces (as they're declared in sources) becomes 
>> far more predictable. 
>> 
>> But again, back to namespaces, why people couldn't use underscores "_"? The 
>> same domain pattern: 
>> "org_douglas_marcos_classes.pas" 
>> "org_mse_classes.pas" 
>> With Delphi 2 the 8.3 file name limitation was removed and everybody could 
>> start growing their domain libraries. 
>
>We back again... The name collision continues! 
>The problem is: We do not know all names used around the world. 
>
>> Ok, nevermind. From what I see the biggest issue is linking and I guess RTTI 
>> (eventually) 
>
>I don't think so. Even the names of the units could be changed "on 
>demand" by the compiler, using the ALIAS defined before. The linker 
>would remain the same, without changes. 
>
>Best regards, 
>Marcos Douglas 
>_______________________________________________ 
>fpc-pascal maillist  -  [hidden email] 
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>
>
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>



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