C# Whidbey Featurette #3: Static classes

re: C# Whidbey Featurette #3: Static classes

Paul Bartlett — Tue, 13 Apr 2004 15:45:00 GMT

With reference to the fact that these classes are "sealed", I was recently investigating whether static methods were inherited:

http://blogs.geekdojo.net/pdbartlett/archive/2004/04/06/1578.aspx

I concluded they were, but if you check the comments you'll see that a far more diligent fellow 'dojo-er (Richard) actually checked out the IL which seemed to suggest that this is a C#-ism (syntactic sugar on the part of the C# compiler) rather than something supported by MSIL itself.

re: C# Whidbey Featurette #3: Static classes

Max — Tue, 13 Apr 2004 18:25:00 GMT

While it's nice to see the static keyword in Whidbey I was just wondering why you haven't choosen "abstract sealed" instead?

re: C# Whidbey Featurette #3: Static classes

Wim — Tue, 13 Apr 2004 19:34:00 GMT

"..the compiler will give you an error if you write an instance method."

Just for completeness - I assume this isn't limited to just instance methods, but also to instance properties and member fields, correct?

re: C# Whidbey Featurette #3: Static classes

Fernando Tubio — Wed, 14 Apr 2004 02:00:00 GMT

So no more Environment.HasShutdownStarted fiascos... :)

re: C# Whidbey Featurette #3: Static classes

Talbott Crowell — Wed, 14 Apr 2004 05:18:00 GMT

I like the idea of static classes and look forward to this improvement to C#. I don't think "abstract sealed" is a good idea since abstract implies incomplete (requires inheritance for full implementation).

C# Featurette Suggestion

Something Clever — Wed, 14 Apr 2004 17:55:00 GMT

I suggest that Microsoft could extend the syntax of C# to allow checked and unchecked wherever unsafe is allowed.

re: C# Whidbey Featurette #3: Static classes

Max — Wed, 14 Apr 2004 16:13:00 GMT

@Talbott
abstract does _not require_ inheritance for a full implementation:

abstract class Foo
{
static void DoSomething(){}
}
...
Foo.DoSomething();

is totally legal code. 'abstract' only means no instance can be created - at least at the view of the Compiler/Runtime.
But I have to agree that most people think 'abstract' means an incomplete class. So it may be less confusing to introduce a "new" keyword instead.

Lazycoder weblog » new static modifier for classes in Whidbye

TrackBack — Wed, 14 Apr 2004 20:46:00 GMT

Lazycoder weblog » new static modifier for classes in Whidbye

C# Featurette #3 from Eric Gunnerson

Code/Tea/Etc... — Wed, 14 Apr 2004 22:05:00 GMT

Whidbey C# Featurette

Christian Nagel's OneNotes — Wed, 14 Apr 2004 22:59:00 GMT

New and Notable 45

Sam Gentile's Blog — Thu, 15 Apr 2004 15:31:00 GMT

re: C# Whidbey Featurette #3: Static classes

enki — Thu, 15 Apr 2004 17:12:00 GMT

Re: Max,

It's totally legal, but semantically, "abstract" sounds like something that shouldn't exist on its own. Static gives a better definition of the actual function the keyword achieves.

Static Class - Abstract does not require inheritence for full implementation.

Information - — Mon, 19 Apr 2004 07:20:00 GMT

re: C# Whidbey Featurette #3: Static classes

Talbott Crowell — Wed, 05 May 2004 01:02:00 GMT

@Max

Good point. I usually hide my constructors with a private constructor, but you could use abstract instead. Personally, I think semantics are key to keeping a language simple and the codebase built on it maintainable. Semantically, abstract implies abstraction, not utility. If keywords indicate intention, code is more maintainable because the code is self-documenting.

re: C# Whidbey Featurette #3: Static classes

Branco — Sun, 23 May 2004 02:37:00 GMT

Ah, I see: just like VB.Net's standard Modules... ;-)

re: C# Whidbey Featurette #3: Static classes

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Whidbey C# Featurette

Christian Nagel's OneNotes — Fri, 14 Jan 2005 10:57:00 GMT