A modern programming language that makes developers happier.

kotlinlang

Is there any reason I don't know of why the following would be inferior to a standard class and constructors? (it is superior in flexibility)

```
interface Foo {
    val a: Int
    val b: Int
    fun sum() = a + b
}

fun Foo(a: Int, b: Int) = object : Foo {
    override val a = a
    override val b = b
}
```

is it more expensive to instantiate object literals than class instances?

i think i prefer this approach to open classes

plus, you can always implement multiple interfaces, so they're just way more flexible

yeah, so I guess the other aspect of taste here is that I don't want my code filled with various names for the same thing like `BasicFoo`, `FooInterface`, `FooImplementation`, etc

yeah, and that's how lists are written, basically, except the functions are masquerading as constructors, using constructor naming convention