How to access a Swift enum associated value outside of a switch statement -

consider:

enum line {     case    horizontal(cgfloat)     case    vertical(cgfloat) }  let leftedge             =  line.horizontal(0.0) let leftmaskrightedge    =  line.horizontal(0.05) 

how can access, say, lefedge's associated value, directly, without using switch statement?

let noideahowto          = leftedge.associatedvalue + 0.5 

this doesn't compile!

i had @ these so questions none of answers seem address issue.

the noideahowto non compiling line above should one-liner, because associated value can type, fail see how user code write "generic" or associatedvalue method in le enum itself.

i ended this, gross, , needs me revisit code each time add/modify case ...

enum line {     case    horizontal(cgfloat)     case    vertical(cgfloat)      var associatedvalue: cgfloat {         {             switch self {                 case    .horizontal(let value): return value                 case    .vertical(let value): return value             }         }     } } 

any pointer anyone?

as others have pointed out, kind of possible in swift 2:

import coregraphics  enum line {     case    horizontal(cgfloat)     case    vertical(cgfloat) }  let min = line.horizontal(0.0) let mid = line.horizontal(0.5) let max = line.horizontal(1.0)  func dotoline(line: line) -> cgfloat? {     if case .horizontal(let value) = line {         return value     }     return .none }  dotoline(min) // prints 0 dotoline(mid) // prints 0.5 dotoline(max) // prints 1