contrib/pep8analysis/src/backbone.nit

   1 import opts
   2
   3 import parser
   4
   5 class AnalysisManager
   6         super Noter
   7         var opts = new OptionContext
   8
   9         init do end
  10 end
  11
  12 abstract class Noter
  13         var notes = new Array[Note]
  14
  15         var failed = false
  16
  17         fun print_notes
  18         do
  19                 if not notes.is_empty then
  20                         print "# Notes:"
  21                         for n in notes do print n
  22                 end
  23         end
  24
  25         fun fatal_error(n: ANode, msg: String)
  26         do
  27                 notes.add( new Fatal(n.location, msg) )
  28                 failed = true
  29         end
  30
  31         fun reset
  32         do
  33                 failed = false
  34         end
  35 end
  36
  37 abstract class Note
  38         var line: Location
  39         var to: nullable Location = null
  40         var msg: String
  41
  42         init (line: Location, msg: String)
  43         do
  44                 self.line = line
  45                 self.msg = msg
  46         end
  47         init range(from, to: Location, msg: String)
  48         do
  49                 self.line = from
  50                 self.to = to
  51                 self.msg = msg
  52         end
  53
  54         fun prefix: String is abstract
  55         redef fun to_s do
  56                 var s = ""
  57                 var to = to
  58                 if to != null then
  59                         s += " from {line} to {to}"
  60                         s = "{line.to_file_s}:{line.to_line_s}--{to.to_line_s}; "
  61                 else
  62                         s = "{line.to_file_s}:{line.to_line_s}; "
  63                 end
  64                 return "{prefix}{s}{msg}"
  65         end
  66 end
  67
  68 class Warn
  69         super Note
  70         init (line: Location, msg: String) do super
  71         init range(from, to: Location, msg: String) do super
  72         redef fun prefix do return "Warning: "
  73 end
  74
  75 class Error
  76         super Note
  77         init (line: Location, msg: String) do super
  78         init range(from, to: Location, msg: String) do super
  79         redef fun prefix do return "Error:   "
  80 end
  81
  82 class Fatal
  83         super Note
  84         init (line: Location, msg: String) do super
  85         init range(from, to: Location, msg: String) do super
  86         redef fun prefix do return "Fatal:   "
  87 end
  88
  89 redef class Object
  90         protected fun manager: AnalysisManager is abstract
  91 end
  92
  93 redef class Location
  94         # "line 5"
  95         fun to_line_s: String
  96         do
  97                 return line_start.to_s
  98         end
  99
 100         fun to_file_s: String
 101         do
 102                 return file.filename
 103         end
 104 end