Add support for Object Literals

[smarr]

Add support for Object Literals

[smarr]

This task is likely going to be worked on by richard-roberts for Grace support.

Thanks for the initial thoughts here @smarr. In the example you provide above, I am not clear on whether the println method is an instance method of obj (the outer object literal) or the inner nested class.

As per the following example, my interpretation is that println is to be an instance method belonging to the outer object literal (and that the inner nest class is declared simply to show that it is possible to nest classes in object literals). Is this correct?

  obj := 
    (* Object literal initializer *)
    (
      | 
        public field = local.
      | 
      local println.
    )

    (* Object literal body *)
    (
      (* A class nested into the object literal's body *)
      public class <superclass identifier>()()

      (* An instance method of the object literal *)
      public println = ( field println. local := local + 1. ).
    )

[smarr]

I updated my initial example, reformated it, and added a missing closing parenthesis.
The idea was that println is a method of the object literal defined, which changes the count of local, which is visible is the subsequent println.
So, it was supposed to be as you showed in your example, indeed.
(I also gave the inner class a name and fixed its definition.)

[smarr]

Implemented with #112.