cvs commit: hugs98/src parser.y

[ross at glass.cse.ogi.edu]

ross        2003/10/08 07:09:08 PDT

  Modified files:
    src                  parser.y 
  Log:
  Use an empty nonterminal rather than error for inserting an initial
  virtual { in the module, to fix a bug reported by Iavor.
  
  The old code was accepting a module with no module header and an
  incomplete last decl like
  
  	f (
  
  as a legal parse (because "topDecls; VARID (" -> error -> "{"), leading
  to an internal error back in parseInput.
  
  Unfortunately the same error still occurs with things like
  
  	module Bug where
  	f x = x where g (
  
  due to a similar problem with the "end" nonterminal, but I don't know
  how to fix that.
  
  Revision  Changes    Path
  1.43      +3 -3      hugs98/src/parser.y