Some Basic Questions

Kirk McDonald kirklin.mcdonald at
Tue Aug 15 18:03:48 PDT 2006

Lutger wrote:
> Kirk McDonald wrote:
>> Lutger wrote:
>>> Derek Parnell wrote:
>>>> No, I suggest you use a different naming convention. I would have your
>>>> class name start with a Capital letter and have your source file 
>>>> name all
>>>> lowercase. And if you stick to one class per file, have your filename
>>>> different to the class by adding a suffix or prefix. For example,
>>>>   module foo_m;
>>>>   class Foo
>>>>   {
>>>>    ...
>>>>   }
>>> Can I ask you, what is your reason for naming a source file 
>>> differently than the class? Does it have something to do with 
>>> importing magic?
>> The name of the source file and the name of the class are completely 
>> orthogonal. They have nothing to do with each other. They may be the 
>> same or different as you wish. This is not Java: A source file can 
>> contain zero classes or as many classes as you like.
>> That said, it is convention to name source files and modules 
>> completely lower-case, and to start class names with a capital. 
>> However, the language does not actually enforce either of these. If 
>> nothing else, it is a /very bad/ idea to ever name the source file and 
>> the module different things, even if they just differ in capitalization.
> I've noticed that unfortunatly, it can create quite a mess. I'm coming 
> from C++, I don't know how Java handles it. Does it enforce it that hard?

Java mandates that each source file contain a single class with the same 
name as the file. Java is more strictly object-oriented than C++ or D, 
and can't have anything outside of a class.

> Maybe I've misunderstood it, I thought Derek Parnell meant the following:
>     module; // corresponds to foo/bar.d
>     class Bar // don't do this, use a different name
>     {
>         ...
>     }
> To avoid names such, "if you stick to one class per file." 
> This is something different than naming source file and module different.

Well, that's fine. I see nothing wrong with that.

Kirk McDonald
Pyd: Wrapping Python with D

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