VB 10 thoughts (part 9)
Comments(4)
31. Templates for anonymous types
It’d be nice if you could change the template used for anonymous types, such as to include INotifyPropertyChanged or other functionality. If you add a template to your project, you could then specify which template to use, e:g
Dim customer = New With{.FirstName=”Fred”, .LastName=”Flintstone”} BasedOn mytemplate
Similarly:
Dim projection = From c in Customers _
Where c.LastName=”Flintstone” _
Select New {c.LastName, c.FirstName} BasedOn mytemplate
32. Scripting support
Runtime features like creating new types on the fly (including support for templates as per #31), an Eval function, and general ease of dynamic interaction.
33. Support for parallel programming
Full support and possible language enhancements around multiprocessor architecture and parallel programming.
34. Lean and Mean option
Ability to turn off, or make it a warning anytime any VB helper functions are used, as well as make the assembly as light weight as possible. For example, if I had Option LeanAndMean On, a If string1 = string2 statement would use String.Equals rather than any VB helper library functions.
I vote for scripting support.
The MSScriptControl is somewhat useable, but it uses COM. It would be nice to have a .NET solution.
Thanks
#31 BasedOn, do you mean like Inherits ?
Hi Morgan,
Nope, I mean a replacement template. The template in this case would have to include the class definition, and as such could dictate what the inheritance chain is.
e.g
# Begin Template
Class $uniquename$
Implements INotifyPropertyChanged
Private backingValues As New Hashtable
$$$
Public Property $PropertyName$ As $PropertyType$
Get
return CType(backingValues($PropertyName$),$PropertyType$)
End Get
Set(ByVal value as $PropertyType$)
If Not $PropertyName$.Equals(value) Then
backingValues($PropertyName$) = value
OnPropertyChanged(“$PropertyName$”)
End Set
End Property
/$$$
Private Sub OnPropertyChanged(name as string)
RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(name))
End Sub
End Class
# End Template
oh, I should add that’s a simplified syntax. Because VB has both Key’ed and non keyed Properties in anonymous types, the replacement blocks would probably need to be idenitified as “Key” and “Non key”