[Hs-Generics] patch applied (generics): Description for constructor cases

[Alexey Rodriguez Yakushev]

Fri Jan 18 08:46:33 PST 2008  Alexey Rodriguez <alexey at cs.uu.nl>
  * Description for constructor cases
  
  Constructor cases
  -----------------
  
  This is for testing constructor cases, that is, can you write
  an ad-hoc case to handle one constructor and then let the rest
  be handled/traversed generically?
  
  Why is this useful?
  Suppose you want to rewrite "x+0" to "x" in a big AST, you do not
  want to program the traversal of other constructors, right?
  
  Well, this removes "WithWeight" constructors handling the others
  generically.
  
  
  

    M ./comparison/TestRmWeights.lhs +12