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[xtend] HowTo: Enum as a parameter in switch-case [message #664037]

Thu, 07 April 2011 05:14

Eclipse User

Hello all,

I'm having a similar problem to this thread http://www.openarchitectureware.org/forum/viewtopic.php?show topic=6880

I'd like to use an enum as a dynamic return value in a function.

Enum example:

EnumEx::ONE
EnumEx::TWO
EnumEx::THREE

Function example:

EnumEx foo() :
   let rc = new EnumEx : // I know I cannot do it like that ... it is just about explaining what I want to do
   switch {
      case x :  rc = EnumEx::ONE
      case y :  rc = EnumEx::TWO
      default :  rc = EnumEx::THREE
   } ->
   rc;

I know I cannot instantiate an enum, but how can I dynamically return enums?

Thanks in advance,
Michael.

Re: [xtend] HowTo: Enum as a parameter in switch-case [message #664056 is a reply to message #664037]

Thu, 07 April 2011 06:39

Eclipse User

Got it!

You can do the following:

EnumEx foo() :
   let rc = 
   switch {
      case (x) :  EnumEx::ONE
      case (y) :  EnumEx::TWO
      default :  EnumEx::THREE
   } :
   rc;

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