.NET Core Mercury, just "Date" is not valid?

Elements Water
1

Version 11.0.0.2717 in Mercury (I’ve only tried this in Water.)

In classic VB.NET, I can define a property or variable as just Date instead of DateTime, and it compiles and runs fine. This also seems to work in a standard VB .NET Core project in Visual Studio.

But in my test ASP.NET Core Mercury project, I am getting an Unknown Type error:

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Not a big deal if this isn’t going to be supported going forward, because as near as I can tell it still treats it as a DateTime. Even the tooltip in Visual Studio shows it as a DateTime.
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But I’m thinking if I had existing VB.NET code I was moving to Mercury, it might be kind of a pain.

I haven’t tested any other scenarios (like standard .NET).

–Avonelle

2

Hmm. pretty sure we had an alias to DateTime. let me check…

3 
Module Program

  Sub Main(args as String())
    writeLn("The magic happens here.")
    
    Dim X As Date
    writeLn($"x {X}")
  End Sub

End Module

this compiles fine for me in a new project, what could I be missing?

4

Hmmmm…You are right, works fine for me with a .NET Classic console app and a .NET Core console app.

Let me see if I can figure out what the difference is…

–Avonelle

1 Like
5

I think it is something specific to ASP.NET Core projects. Adding a simple variable declaration of Date fails for both the “ASP.NET Core MVC/Razor-based Web application” and “ASP.NET Core Empty Web Application” project templates. But it compiled fine for a classic Windows app.

FYI: I also see that “Date” doesn’t show up in the CC list in my test projects for ASP.NET Core but it does in the classic Windows app.

–Avonelle

6

Hmm, it looks like the template misses a reference to Mercury.dll. Adding that fixes it. I’ll fix the templates.

7

Excellent. Thanks!

–Avonelle

1 Like