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 end
   9
  10 abstract class Noter
  11         var notes = new Array[Note]
  12
  13         var failed = false
  14
  15         fun print_notes
  16         do
  17                 if not notes.is_empty then
  18                         print "# Notes:"
  19                         for n in notes do print n
  20                 end
  21         end
  22
  23         fun fatal_error(n: ANode, msg: String)
  24         do
  25                 notes.add( new Fatal(n.location, msg) )
  26                 failed = true
  27         end
  28
  29         # Reset failure status
  30         fun reset do failed = false
  31
  32         # Clear list of notes
  33         fun clear do notes = new Array[Note]
  34 end
  35
  36 abstract class Note
  37         var line: Location
  38         var to: nullable Location = null
  39         var msg: String
  40
  41         init (line: Location, msg: String)
  42         do
  43                 self.line = line
  44                 self.msg = msg
  45         end
  46         init range(from, to: Location, msg: String)
  47         do
  48                 self.line = from
  49                 self.to = to
  50                 self.msg = msg
  51         end
  52
  53         fun prefix: String is abstract
  54         redef fun to_s do
  55                 var s = ""
  56                 var to = to
  57                 if to != null then
  58                         s += " from {line} to {to}"
  59                         s = "{line.to_file_s}:{line.to_line_s}--{to.to_line_s}; "
  60                 else
  61                         s = "{line.to_file_s}:{line.to_line_s}; "
  62                 end
  63                 return "{prefix}{s}{msg}"
  64         end
  65 end
  66
  67 class Warn
  68         super Note
  69         init (line: Location, msg: String) do super
  70         init range(from, to: Location, msg: String) do super
  71         redef fun prefix do return "Warning: "
  72 end
  73
  74 class P8Error
  75         super Note
  76         init (line: Location, msg: String) do super
  77         init range(from, to: Location, msg: String) do super
  78         redef fun prefix do return "Error:   "
  79 end
  80
  81 class Fatal
  82         super Note
  83         init (line: Location, msg: String) do super
  84         init range(from, to: Location, msg: String) do super
  85         redef fun prefix do return "Fatal:   "
  86 end
  87
  88 redef class Location
  89         # "line 5"
  90         fun to_line_s: String
  91         do
  92                 return line_start.to_s
  93         end
  94
  95         fun to_file_s: String
  96         do
  97                 return file.filename
  98         end
  99 end
 100
 101 protected fun manager: AnalysisManager do return once new AnalysisManager