Question About Future C# Syntax (Generics)

[Matthew W. Jackson]

I had a question about the "using" statement and Generics in the next
version of C#, and I was directed to this newsgroup. My question is: Will
the following syntax be valid?
using Int32ArrayList = System.GCollect ions.ArrayList< Int32>;
....
Int32ArrayList myArrayList = new Int32ArrayList( );
I (along with many others) use a similar method in C++ with typedefs, and to
me it really makes STL code a lot cleaner. I see no reason why this should
not be possible in Whidbey C#, but I may be missing something. This is of
course a trivial example, but in cases where there are several template
parameters (and even moreso, nesting), it really helps.

I don't have time to install Rotor and Gyro to find out if it works in that
environment, so I thought I'd ask here first.

Thanks in advance,

Matthew W. Jackson

[Jürgen Beck]

"Matthew W. Jackson" <th*****@hotmai l.com> schrieb im Newsbeitrag
news:iJ******** *************@n ewssvr11.news.p rodigy.com...

I had a question about the "using" statement and Generics in the next
version of C#, and I was directed to this newsgroup. My question is: Will
the following syntax be valid?

using Int32ArrayList = System.GCollect ions.ArrayList< Int32>;
...
Int32ArrayList myArrayList = new Int32ArrayList( );

I heard that they are considering some using alias directives support for
generics for Whidbey.

Jürgen Beck
MCSD.NET, MCDBA, MCT
www.Juergen-Beck.de

[Jürgen Beck]

"Matthew W. Jackson" <th*****@hotmai l.com> schrieb im Newsbeitrag
news:iJ******** *************@n ewssvr11.news.p rodigy.com...

I had a question about the "using" statement and Generics in the next
version of C#, and I was directed to this newsgroup. My question is: Will
the following syntax be valid?

using Int32ArrayList = System.GCollect ions.ArrayList< Int32>;
...
Int32ArrayList myArrayList = new Int32ArrayList( );

I heard that they are considering some using alias directives support for
generics for Whidbey.

Jürgen Beck
MCSD.NET, MCDBA, MCT
www.Juergen-Beck.de

[Chris LaJoie]

I'm kinda hoping for some type of inline ILASM block. It would probably be
easiest just to allow one to write the whole function in il, or none of it.
This is kinda what I was thinking:

class Test
{
void Main() {
Console.WriteLi ne(Add(5, 6));
}

// ilasm function
int ilasm Add(int a, int b) {
ldarg.0 // push a on stack
ldarg.1 // push b on stack
add // add 2 args
ret // return int on the stack
}

/*
C# code for the ilasm is here:
int Add(int a, int b) {
return a + b;
}
*/

}


Chris

"Matthew W. Jackson" <th*****@hotmai l.com> wrote in message
news:iJ******** *************@n ewssvr11.news.p rodigy.com...

I had a question about the "using" statement and Generics in the next
version of C#, and I was directed to this newsgroup. My question is: Will
the following syntax be valid?
using Int32ArrayList = System.GCollect ions.ArrayList< Int32>;
...
Int32ArrayList myArrayList = new Int32ArrayList( );
I (along with many others) use a similar method in C++ with typedefs, and to me it really makes STL code a lot cleaner. I see no reason why this should not be possible in Whidbey C#, but I may be missing something. This is of
course a trivial example, but in cases where there are several template
parameters (and even moreso, nesting), it really helps.

I don't have time to install Rotor and Gyro to find out if it works in that environment, so I thought I'd ask here first.

Thanks in advance,

Matthew W. Jackson

[Chris LaJoie]

I'm kinda hoping for some type of inline ILASM block. It would probably be
easiest just to allow one to write the whole function in il, or none of it.
This is kinda what I was thinking:

class Test
{
void Main() {
Console.WriteLi ne(Add(5, 6));
}

// ilasm function
int ilasm Add(int a, int b) {
ldarg.0 // push a on stack
ldarg.1 // push b on stack
add // add 2 args
ret // return int on the stack
}

/*
C# code for the ilasm is here:
int Add(int a, int b) {
return a + b;
}
*/

}


Chris

"Matthew W. Jackson" <th*****@hotmai l.com> wrote in message
news:iJ******** *************@n ewssvr11.news.p rodigy.com...

I had a question about the "using" statement and Generics in the next
version of C#, and I was directed to this newsgroup. My question is: Will
the following syntax be valid?
using Int32ArrayList = System.GCollect ions.ArrayList< Int32>;
...
Int32ArrayList myArrayList = new Int32ArrayList( );
I (along with many others) use a similar method in C++ with typedefs, and to me it really makes STL code a lot cleaner. I see no reason why this should not be possible in Whidbey C#, but I may be missing something. This is of
course a trivial example, but in cases where there are several template
parameters (and even moreso, nesting), it really helps.

I don't have time to install Rotor and Gyro to find out if it works in that environment, so I thought I'd ask here first.

Thanks in advance,

Matthew W. Jackson

[Eric Gunnerson [MS]]

The answer is "yes", you will be able to do that, but note that you do not
get real typedefs out of this. Typedefs define specific types, while aliases
are just shortcuts.
"Matthew W. Jackson" <th*****@hotmai l.com> wrote in message
news:iJ******** *************@n ewssvr11.news.p rodigy.com...

I had a question about the "using" statement and Generics in the next
version of C#, and I was directed to this newsgroup. My question is: Will
the following syntax be valid?
using Int32ArrayList = System.GCollect ions.ArrayList< Int32>;
...
Int32ArrayList myArrayList = new Int32ArrayList( );
I (along with many others) use a similar method in C++ with typedefs, and to me it really makes STL code a lot cleaner. I see no reason why this should not be possible in Whidbey C#, but I may be missing something. This is of
course a trivial example, but in cases where there are several template
parameters (and even moreso, nesting), it really helps.

I don't have time to install Rotor and Gyro to find out if it works in that environment, so I thought I'd ask here first.

Thanks in advance,

Matthew W. Jackson