[Mono-dev] Constructor implementation obligation via interface?

[Kamil Skalski]

Is it possible? How?

$ cat t.cs
abstract class A { abstract public A(); }   class M { public static
void Main () { } }

$ ./csc t.cs
Microsoft (R) Visual C# 2005 Compiler version 8.00.50727.42
for Microsoft (R) Windows (R) 2005 Framework version 2.0.50727
Copyright (C) Microsoft Corporation 2001-2005. All rights reserved.

t.cs(1,36): error CS0106: The modifier 'abstract' is not valid for this item



2006/5/24, Martin Hinks <mhinks at gmail.com>:
> > so you can't define a class without empty constructor.
> Well, in an abstract class you could tag the empty constructor
> "mustoverride" so that all derivative classes must explicitly override
> the emtpy constructor...
>
> Martin
>
> On 5/24/06, Kamil Skalski <kamil.skalski at gmail.com> wrote:
> > There is a slight problem. In C# empty constructors are added
> > automatically, so you can't define a class without empty constructor.
> > What you can do is to define a class with private empty constructor,
> > which will prevent user from instanciating it directly. I guess there
> > is not way to forbid this.
> >
> > 2006/5/24, Ympostor <ympostor at clix.pt>:
> > > I have a question about C# 2.0:
> > >
> > > If I want the compiler to show an error if a class A does not implement
> > > the function void B(), I can make an interface that contains this method
> > > and make class A inherit from that interface.
> > >
> > > But, how can I do it if I want the compiler to show an error if class A
> > > doesn't have an empty constructor. Can this be controlled statically?
> > >
> > > Thanks in advance.
> > >
> > > --
> > >
> > > _______________________________________________
> > > Mono-devel-list mailing list
> > > Mono-devel-list at lists.ximian.com
> > > http://lists.ximian.com/mailman/listinfo/mono-devel-list
> > >
> >
> >
> > --
> > Kamil Skalski
> > http://nazgul.omega.pl
> > _______________________________________________
> > Mono-devel-list mailing list
> > Mono-devel-list at lists.ximian.com
> > http://lists.ximian.com/mailman/listinfo/mono-devel-list
> >
>
>
> --
> Martin Hinks
> http://www.m-s-d.net
>


-- 
Kamil Skalski
http://nazgul.omega.pl