---------------------
import vibe.core.net;
TCPConnection mySocket;

void main() {
    auto b = mySocket is null;
}
---------------------

That's giving me:

---------------------
Error: incompatible types for (mySocket) is (null): TCPConnection and typeof(null)
---------------------

WTF?!?!

The type in question (vibe.core.net.TCPConnection) is an interface:
http://vibed.org/api/vibe.core.net/TCPConnection
https://github.com/vibe-d/vibe.d/blob/master/core/vibe/core/net.d#L344

The following works just fine:
---------------------
interface IFoo {}

void main() {
    IFoo i;
    auto b = i is null;
}
---------------------

On Thursday, 8 March 2018 at 04:48:08 UTC, Nick Sabalausky (Abscissa) wrote:
> ---------------------
> import vibe.core.net;
> TCPConnection mySocket;
>
> void main() {
>     auto b = mySocket is null;
> }
> ---------------------
>
> That's giving me:
>
> ---------------------
> Error: incompatible types for (mySocket) is (null): TCPConnection and typeof(null)
> ---------------------
>
> WTF?!?!
>
> The type in question (vibe.core.net.TCPConnection) is an interface:
> http://vibed.org/api/vibe.core.net/TCPConnection
> https://github.com/vibe-d/vibe.d/blob/master/core/vibe/core/net.d#L344
>
> The following works just fine:
> ---------------------
> interface IFoo {}
>
> void main() {
>     IFoo i;
>     auto b = i is null;
> }
> ---------------------

That does seem odd.
---
/+dub.sdl:
dependency "vibe-d" version="~>0.8.3-alpha.1"
+/
import vibe.core.net;
import std.stdio;
TCPConnection mySocket;

void main() {
    auto b = mySocket is null;
    writeln(b);
}
---
works fine on run.dlang.io

On 03/08/2018 01:13 AM, Nicholas Wilson wrote:
> 
> That does seem odd.
> ---
> /+dub.sdl:
> dependency "vibe-d" version="~>0.8.3-alpha.1"
> +/
> import vibe.core.net;
> import std.stdio;
> TCPConnection mySocket;
> 
> void main() {
>      auto b = mySocket is null;
>      writeln(b);
> }
> ---
> works fine on run.dlang.io

Interesting. I was using vibe.d 'v0.8.3-rc.1' (which doesn't appear to work on run.dlang.io). But it does seem to work for me if I use 'v0.8.3-alpha.1'.

I wonder what could have changed to result in this?

On 03/08/2018 03:04 AM, Nick Sabalausky (Abscissa) wrote:
> 
> Interesting. I was using vibe.d 'v0.8.3-rc.1' (which doesn't appear to work on run.dlang.io). But it does seem to work for me if I use 'v0.8.3-alpha.1'.
> 
> I wonder what could have changed to result in this?

https://github.com/vibe-d/vibe.d/issues/2108

On Thursday, 8 March 2018 at 08:04:54 UTC, Nick Sabalausky (Abscissa) wrote:

> Interesting. I was using vibe.d 'v0.8.3-rc.1' (which doesn't appear to work on run.dlang.io). But it does seem to work for me if I use 'v0.8.3-alpha.1'.
>
> I wonder what could have changed to result in this?

It's a struct in "v0.8.3-rc.1" [1]. In "v0.8.3-rc.1" the new vibe-core package is the default configuration.

[1] https://github.com/vibe-d/vibe-core/blob/master/source/vibe/core/net.d#L467

--
/Jacob Carlborg