gcc/ada/ceinfo.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                          GNAT SYSTEM UTILITIES                           --
   4 --                                                                          --
   5 --                               C E I N F O                                --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --             Copyright (C) 1998 Free Software Foundation, Inc.            --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 --  Program to check consistency of einfo.ads and einfo.adb. Checks that
  28 --  field name usage is consistent, including comments mentioning fields.
  29
  30 with Ada.Strings.Unbounded;         use Ada.Strings.Unbounded;
  31 with Ada.Strings.Unbounded.Text_IO; use Ada.Strings.Unbounded.Text_IO;
  32 with Ada.Text_IO;                   use Ada.Text_IO;
  33
  34 with GNAT.Spitbol;                  use GNAT.Spitbol;
  35 with GNAT.Spitbol.Patterns;         use GNAT.Spitbol.Patterns;
  36 with GNAT.Spitbol.Table_VString;
  37
  38 procedure CEinfo is
  39
  40    package TV renames GNAT.Spitbol.Table_VString;
  41    use TV;
  42
  43    Infil  : File_Type;
  44    Lineno : Natural := 0;
  45
  46    Err : exception;
  47    --  Raised on fatal error
  48
  49    Fieldnm    : VString;
  50    Accessfunc : VString;
  51    Line       : VString;
  52
  53    Fields : GNAT.Spitbol.Table_VString.Table (500);
  54    --  Maps field names to underlying field access name
  55
  56    UC : Pattern := Any ("ABCDEFGHIJKLMNOPQRSTUVWXYZ");
  57
  58    Fnam : Pattern := (UC & Break (' ')) * Fieldnm;
  59
  60    Field_Def : Pattern := "--    " & Fnam & " (" & Break (')') * Accessfunc;
  61
  62    Field_Ref : Pattern := "   --    " & Fnam & Break ('(') & Len (1) &
  63                             Break (')') * Accessfunc;
  64
  65    Field_Com : Pattern := "   --    " & Fnam & Span (' ') &
  66                             (Break (' ') or Rest) * Accessfunc;
  67
  68    Func_Hedr : Pattern := "   function " & Fnam;
  69
  70    Func_Retn : Pattern := "      return " & Break (' ') * Accessfunc;
  71
  72    Proc_Hedr : Pattern := "   procedure " & Fnam;
  73
  74    Proc_Setf : Pattern := "      Set_" & Break (' ') * Accessfunc;
  75
  76    procedure Next_Line;
  77    --  Read next line trimmed from Infil into Line and bump Lineno
  78
  79    procedure Next_Line is
  80    begin
  81       Line := Get_Line (Infil);
  82       Trim (Line);
  83       Lineno := Lineno + 1;
  84    end Next_Line;
  85
  86 --  Start of processing for CEinfo
  87
  88 begin
  89    Anchored_Mode := True;
  90    New_Line;
  91    Open (Infil, In_File, "einfo.ads");
  92
  93    Put_Line ("Acquiring field names from spec");
  94
  95    loop
  96       Next_Line;
  97       exit when Match (Line, "   -- Access Kinds --");
  98
  99       if Match (Line, Field_Def) then
 100          Set (Fields, Fieldnm, Accessfunc);
 101       end if;
 102    end loop;
 103
 104    Put_Line ("Checking consistent references in spec");
 105
 106    loop
 107       Next_Line;
 108       exit when Match (Line, "   -- Description of Defined");
 109    end loop;
 110
 111    loop
 112       Next_Line;
 113       exit when Match (Line, "   -- Component_Alignment Control");
 114
 115       if Match (Line, Field_Ref) then
 116          if Accessfunc /= "synth"
 117               and then
 118             Accessfunc /= "special"
 119               and then
 120             Accessfunc /= Get (Fields, Fieldnm)
 121          then
 122             if Present (Fields, Fieldnm) then
 123                Put_Line ("*** field name incorrect at line " & Lineno);
 124                Put_Line ("      found field " & Accessfunc);
 125                Put_Line ("      expecting field " & Get (Fields, Fieldnm));
 126
 127             else
 128                Put_Line
 129                  ("*** unknown field name " & Fieldnm & " at line " & Lineno);
 130             end if;
 131          end if;
 132       end if;
 133    end loop;
 134
 135    Close (Infil);
 136    Open (Infil, In_File, "einfo.adb");
 137    Lineno := 0;
 138
 139    Put_Line ("Check listing of fields in body");
 140
 141    loop
 142       Next_Line;
 143       exit when Match (Line, "   -- Attribute Access Functions --");
 144
 145       if Match (Line, Field_Com)
 146         and then Fieldnm /= "(unused)"
 147         and then Accessfunc /= Get (Fields, Fieldnm)
 148       then
 149          if Present (Fields, Fieldnm) then
 150             Put_Line ("*** field name incorrect at line " & Lineno);
 151             Put_Line ("      found field " & Accessfunc);
 152             Put_Line ("      expecting field " & Get (Fields, Fieldnm));
 153
 154          else
 155             Put_Line
 156               ("*** unknown field name " & Fieldnm & " at line " & Lineno);
 157          end if;
 158       end if;
 159    end loop;
 160
 161    Put_Line ("Check references in access routines in body");
 162
 163    loop
 164       Next_Line;
 165       exit when Match (Line, "   -- Classification Functions --");
 166
 167       if Match (Line, Func_Hedr) then
 168          null;
 169
 170       elsif Match (Line, Func_Retn)
 171         and then Accessfunc /= Get (Fields, Fieldnm)
 172         and then Fieldnm /= "Mechanism"
 173       then
 174          Put_Line ("*** incorrect field at line " & Lineno);
 175          Put_Line ("      found field " & Accessfunc);
 176          Put_Line ("      expecting field " & Get (Fields, Fieldnm));
 177       end if;
 178    end loop;
 179
 180    Put_Line ("Check references in set routines in body");
 181
 182    loop
 183       Next_Line;
 184       exit when Match (Line, "   -- Attribute Set Procedures");
 185    end loop;
 186
 187    loop
 188       Next_Line;
 189       exit when Match (Line, "   ------------");
 190
 191       if Match (Line, Proc_Hedr) then
 192          null;
 193
 194       elsif Match (Line, Proc_Setf)
 195         and then Accessfunc /= Get (Fields, Fieldnm)
 196         and then Fieldnm /= "Mechanism"
 197       then
 198          Put_Line ("*** incorrect field at line " & Lineno);
 199          Put_Line ("      found field " & Accessfunc);
 200          Put_Line ("      expecting field " & Get (Fields, Fieldnm));
 201       end if;
 202    end loop;
 203
 204    Put_Line ("All tests completed successfully, no errors detected");
 205
 206 end CEinfo;