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0 pointsMichaelGG14y ago0 comments

How do you differentiate between referencing a method, and calling the method? I.e., foo.Sort(x.compare)?

I think the idea of computed fields implemented via methods is better represented via C#-style properties, although I'd prefer to be able to access their methods directly, when suitable.

0 comments

ankurdave14y ago

You'd use an underscore to form a partially applied function:

    foo.Sort(x.compare _)

And Scala's getters and setters are essentially equivalent to C#'s properties:

    class A {
        private var _x = 0
        def x = _x
        def x_=(value: Int) { _x = value }
    }

    val a = new A
    a.x = 5
    println(a.x)

nknight14y ago

So instead of a simple, uniform rule that () invokes a function, and no-() references the function, you add yet a third syntax?

This is not an improvement, it is an unnecessary complication.

skaalf14y ago

That's not the same thing. You obviously use partial application only if the function takes params. And I just can't see why you'd like to pass a reference on a parameter-less function.

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