alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Scala example source code file (bug960.check)

This example Scala source code file (bug960.check) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Scala tags/keywords

list, list, option, option

The Scala bug960.check source code

bug960.scala:18: error: ambiguous reference to overloaded definition,
both method unapply in object List of type [a](xs: List[a])Option[Null]
and  method unapply in object List of type [a](xs: List[a])Option[(a, List[a])]
match argument types (List[a])
    case List(x, xs) => 7
         ^
bug960.scala:12: error: method unapply is defined twice
  def unapply[a](xs: List[a]): Option[Null] = xs match {
      ^
two errors found

Other Scala examples (source code examples)

Here is a short list of links related to this Scala bug960.check source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.