Nullable condition operator

[ZombineDev via Digitalmars-d]

On Friday, 11 December 2015 at 08:30:21 UTC, Martin6265 wrote:
> But the syntax of it will be like calling template func, and 
> its not desirable.
> The trick is in the simplicity of the pattern not only in 
> functionality.
>

No, by using UFCS and IFTI, the syntax of `maybe` becomes even 
better than C#'s `?.`. See:

// http://dlang.org/glossary.html
// UFCS: https://dlang.org/spec/function.html#pseudo-member
// IFTI: https://dlang.org/spec/template.html#variadic-templates 
(search for "implicit")

struct Node
{
     int val;
     Node* left, right;
}

void main()
{
     import std.stdio;

     auto tree = new Node(1,
         new Node(2),
         new Node(3,
             null,
             new Node(4)
         )
     );

     writeln(tree.maybe.right.right.val);
     writeln(tree.maybe.left.right.left.right);
     writeln(tree.maybe.left.right.left.right.val);
}

// Full source: http://dpaste.dzfl.pl/8b5dcec7aaf3

> Look, Im developing multiplatform GUI framework (based on .NET 
> conventions and Cocoa) & ID.

I'm interested to know more about the multiplatform GUI framework 
you are developing. What are the main features, goals and design 
ideas, architecture and programming model?

> I can make my custom version of D (anyway, Ill distribute it as 
> a one package product) but Im not happy to make new, 
> uncompatibile version.

What do you miss the most in D? What would you change to be 
worthwhile the effort to distribute a custom version of D?

Before learning about D, I worked on UI components with C#/WPF|SL 
so I can understand that in the beginning it seems that C# is 
better in some stuff than D. However now I would never go back to 
C# and .NET, because I would miss so much of D's features and I 
don't remember anything that I miss from C# and .NET.