NewExpression -> MemberExpression (for unary form)

[dead-claudia]

#4: No good use case for it.

There are only two possible use cases for ::func:

1. You want to bind the function to undefined so it cannot be re-bound by the caller.
   • Use undefined::func or func.bind(undefined) as it's more explicit of the intent.
2. You just want to pass the function as an argument.
   • Binding is unnecessary here. Just use func.

Because ::func ~ func.bind(undefined), func() ~ undefined::func(), and the above two points, there is no good use case for this.

[zenparsing]

Changing "NewExpression" to "MemberExpression" in the grammar will still actually allow things like:

::ident;

#4 will have to be addressed with either:

1. A runtime error if the operand is not a property reference, or
2. An early error if the operand is neither MemberExpression : MemberExpression . Identifier nor MemberExpression : MemberExpression [ Expression ]

I think I'm going to go with option 2 for now.

[zenparsing]

I went ahead and added the early error rule. Take a look and let me know if you have any suggestions!

[dead-claudia]

Ok...overlooked that part. I must have confused it with ESTree's MemberExpression. Sorry about that.