gCons.icl

   1 implementation module gCons
   2
   3 /*
   4         Pieter Koopman 2015
   5         pieter@cs.ru.nl
   6         Radboud University, Nijmegen, The Netherlands
   7         ARDSL project
   8 */
   9
  10 import StdEnv, StdGeneric
  11
  12 generic consName a :: a -> String
  13 consName{|CONS of {gcd_name}|} f x = gcd_name
  14 consName{|UNIT|}   _ = "UNIT"
  15 consName{|PAIR|}   f g (PAIR x y) = f x
  16 consName{|EITHER|} f g (LEFT x)   = f x
  17 consName{|EITHER|} f g (RIGHT y)  = g y
  18 consName{|OBJECT|} f   (OBJECT x) = f x
  19 consName{|RECORD|} f   (RECORD x) = f x
  20 consName{|FIELD|}  f   (FIELD x)  = f x
  21 consName{|Int|}        i = toString i
  22 consName{|Bool|}       b = toString b
  23 consName{|Char|}       c = toString c
  24 consName{|(->)|}   f g x = g (x undef)
  25
  26 generic consIndex a :: a -> Int
  27 consIndex{|CONS of {gcd_index}|} f x = gcd_index
  28 consIndex{|UNIT|} _ = 0
  29 consIndex{|PAIR|} f g (PAIR x y) = f x
  30 consIndex{|EITHER|} f g (LEFT x) = f x
  31 consIndex{|EITHER|} f g (RIGHT y) = g y
  32 consIndex{|OBJECT|} f (OBJECT x) = f x
  33 consIndex{|Int|} i = i
  34 consIndex{|Bool|} b = if b 1 0
  35 consIndex{|Char|} c = toInt c