Keyword that represents null/undefined/void

[h2non]

Proposal Just to define empty assignment blocks that points to nothing.... but it can generate a bit of FUD and confusion...

[aalda]

I'm not sure... The concept of void does not make sense to me without the presence of functions. Can you think of any examples?

[h2non]

Could be something like this:

block: void 

JSON equivalent to null primitive type:

"block": null 

By the way... another alternative could be nil like null, but more ruby-like :) Anywway I'm not too much convinced about the idea to introduce reserved alphanumeric keywords (except the end block terminator keyword)

[h2non]

Maybe introduce a symbol-based token representing unassigned or undefined would be a better choice and more unobstructive solution, following the language design principles...

Some possible not bright ideas:

block: !!
block: (nil)

[aalda]

That sounds better. What about this:

block:!

or

block::

[h2non]

First one rules!! :+1: I will add a new operator called AssignNot right now :-)

[h2non]

Additionally, after some reflexions, I think it could be practical to have a reserved keyword called nil that represented null or undefined.

I think this will be useful for serialization processes. The main inconvenience will be that this implies to reserve another keyword in the language, so at this time, there are only 2 alphabetic keyword reserved: end and nil

So.. Oli language should support the following expressions:

# assign not operator
hello!:
# nil keyword assignment
hello: nil

[h2non]

Finally approved the following expressions to be a part of the specification

# assign not operator
hello!:
# nil keyword assignment
hello: nil