Using for-comprehension, Try and sequences in Scala -


Assume that you have several ways: 

  def foo (): [straight ] [String] [String]   
 Try and make an inclusive one for you:  
  {list & lt; - foo item & lt; - List results & lt; - Bar (item)} yield result   
 Definitely it will not compile because the reference can not be used with Seq.  
 Anyone have a good solution to how to write it without dividing it into two separate ones?  
 I have come for the third time in this syntax problem and thought that it is about time to ask about it.   
 
 
 IMHO:  Try  and  CAC  Moned Transformer is more than the need to define:  
 Code for the Library:  
  Try the case class [R] (Run: [R]] [D ] DEF MAP [B] (F: R => B): Try [B] = Triax (map {_ map F}) def flatMap [B] (F: R => trySeq [B]): trySeq [B] = TrySeq {match match {case success (s) => sequence (map f map {_.run}) map {_.flatten} case Failure (E) => Failure (E)}} Def sequence [R] (CEC: Seek [try] []: [Seek [R]] = {Sequence match {Case Success (H) :: Tail = & Gt; tail.foldLeft (try (h: neil)) {case (success (ACC), success (AMM)) => success (AMM :: ACC) case (E: failure [R], _ Failure (E): Failure in case (E) :: _ => Failure (e) case = 0 = {Nil} }}} Try the object SEeq {def withTry [R] (Run: sec [R]): trySeq [R] = Try newSec (try {run}) def [Sq] [run] try [R] ): TrySeq [R] = Try new (try to run the map (_ :: NIEL)) for TRYSeqT [R] defyTeqT [R] (trySeqT: trySeq [R] (try: [SEQ [R]] = trySeq (run) = TrySeqT.run}   
 and after you use virtual (just import your library):  
  def foo: try [seq [String]] {List ("Hello", "World")} Try DEF Bar (S: String): Try [String] {{++!}} = Valve = {item1 & lt; - trySeq {foo} item2 & lt; - trySeq {foo} results & lt; - trySeq.withSeq {bar} (item2)}} yield 1 + result println (x.run)   
 and works for:  
  Def foo () = {Throwdown ("hello", new illegal attack exception)} / x = failure (java.lang.IllegalArgumentException)

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