Support get/set

[satyr]

With syntax like:

obj = {
  prop: function -> 42
  prop: function (item) -> alert item
}

↓

var obj;
obj = {
  get prop(){
    return 42;
  },
  set prop(item){
    return alert(item);
  }
};

[satyr]

Still undecided on the syntax. Maybe with a unary that's pointless now:

• p: !->
• p: ~->

[satyr]

closed by 8f07c80; supported accessor properties by overloading ~

[satyr]

Time to improve.

• Use Object.defineProperty when importing.
• Make it DRYer.

o <<< p:~
  ->     # get
  (x) -> # set

↓

Object.defineProperty(o, 'p', {
  get: function(){},
  set: function(x){},
  configurable: true,
  enumerable: true
});

[satyr]

Preferring that notation, this will be an incompatible change for the literal case. The old way:

o =
  p:~ ->     # get
  p:~ (x) -> # set

will be invalid as duplicate property.