> "Why don't you just add these patterns into your computer language as abstractions? Wouldn't that aid comprehension even more?"

I often asked myself this question! Why do I have to say

    public class DatabaseConnectionSingleton {
        public static DatabaseConnectionSingleton getInstance (){ ... };
    }

and then get an object using:

    var db = DatabaseConnectionSingleton.getInstance();

Why can't I say

    public singleton DatabaseConnection {...} 

and just go

    var db = new DatabaseConnection();

and let my runtime make sure that I get the appropriate instance? Left aside the discussion of how useful that pattern is, I would like my language to be more powerful. I am aware of alternatives (Borgs in Python) and that many people consider Singletons an antipattern, as it helps introduce globally shared state, etc. but then, why do I have to care about how instances are implemented?

After all, in C#, foreach interacts with iterators, why not push other mechanisms down into the language in the same way?

Ideas:

    // Unit of work, commits changes before the reference gets removed from stack
    public unit CustomerForm { } 

    // There can be only one.
    public singleton DatabaseConnectionHighlander {}

    // Any method called updates values in some way
    public builder QueryString {}