On Oct 4, 2011, at 12:44 AM, Brendan Eich wrote:
> On Oct 4, 2011, at 5:43 AM, Russell Leggett wrote:
>
>> I don't want to be pushy, so this is the last time that I'll mention
>> it, but if we can create something using the <| operator that can
>> basically do what has been discussed for the simplest class literal,
>
> I think you're barking up several wrong trees. But yes, Allen proposed <| and
> .{ to help make class-like syntax lighter-weight (if more punctuated),
> without having real class syntax. Unfortunately any such poor-person's "class
> unsyntax" will remain error prone (easy to leave out or misorder a
> sub-expression) and slightly verbose (compared to just-so class syntax).
>
Brendan, It sounds like you may have missed this alternative from the "Minor
extension to Set Literal Prototype..." thread that eliminates the mis-ordered
or left-out constructor clause problem.
> On Oct 2, 2011, at 12:52 PM, Allen Wirfs-Brock wrote:
>>
>
...
> But, what if we allow:
> propName.{ ...}
> to occur in a PropertyAssignment position of an object extension literal.
> Then the pattern could be:
>
> const ClassName = SuperClass <| function(/*constructor parameters */) {
> //constructor body
> super.constructor(/*arguments to super constructor */);
> this.{
> // per-instance properties
> };
> }.{
> prototype.{ // <<<<< note . instead of :
> // methods
> },
> // class (ie, constructor) properties
> };
>
> It's only a one character change but it eliminates the hazard that some
> people are concerned about of leaving off the .constructor or
> .constructor.{...} at the end of the pattern. Also, I can imagine that
> "recursive stache" (hey, it's inevitable that "mustache" will get contracted
> to "stache") would be useful in other situations. Personally, I find this new
> pattern not quite as "pretty" than my original proposal (it's less symmetric/
> more irregular hence probably harder to learn and remember) but I'd still be
> happy to use it.
>
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