Is there a case statement in Haml-Coffee?

Question

I'd like to do the following in Haml-Coffee:

- case msg.type
- when "usertext"
    = msg.body          
- when "direct"
    = msg.content.kbcontent_body

But I get an error "Reserved word "case""

I suspect it's not supported by Haml-Coffee actually.

Hesychast

Why is the rails tag on here if it's for coffeescript? – Fontenot

Answer 1

There isn't a case statement in CoffeeScript. You want switch — the case keyword is the JavaScript equivalent of when, and like many dropped JavaScript keywords is reserved in CoffeeScript. Also, I'm not 100% positive and don't have Haml-Coffee to test right now, but I think you'll need to indent the body of the switch.

Pilate

Answer 2

Before the question was edited, it's main phrase had been:

Is there a case statement in HAML?

The answer is: in vanilla Haml there indeed is case!

%p
  - case 2
  - when 1
    = "1!"
  - when 2
    = "2?"
  - when 3
    = "3."

Backer

Well, this is true of mainline Haml, but it isn't true of Haml Coffee, which is what the question was about. – Pilate

The question was: "Is there a case statement in HAML?". There is. – Backer

The question specifically says "it's HAML-Coffee". You can go test it in Haml Coffee if you want to see for yourself — this code will not work. And BTW, revenge-downvoting is not classy and encourages silent downvotes, which isn't a good outcome. – Pilate

Yeah but they put the ruby-on-rails tag on it totally confusing it. – Fontenot

Answer 3

You can use any complex ruby code in haml using :ruby syntax when it is extremely necessary. Keep this on top level and use the resulting variable in your coffee haml

:ruby
  x = case a
  when 2
     "two"
  when 3
     "three"
  end

Asseverate