summaryrefslogtreecommitdiff
path: root/gcc/ada/ceinfo.adb
blob: 494b9077c47ba10eaac0192430815a27019a74cd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
------------------------------------------------------------------------------
--                                                                          --
--                          GNAT SYSTEM UTILITIES                           --
--                                                                          --
--                               C E I N F O                                --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--             Copyright (C) 1998 Free Software Foundation, Inc.            --
--                                                                          --
-- GNAT is free software;  you can  redistribute it  and/or modify it under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
-- for  more details.  You should have  received  a copy of the GNU General --
-- Public License  distributed with GNAT;  see file COPYING.  If not, write --
-- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
-- Boston, MA 02110-1301, USA.                                              --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
--                                                                          --
------------------------------------------------------------------------------

--  Program to check consistency of einfo.ads and einfo.adb. Checks that
--  field name usage is consistent, including comments mentioning fields.

with Ada.Strings.Unbounded;         use Ada.Strings.Unbounded;
with Ada.Strings.Unbounded.Text_IO; use Ada.Strings.Unbounded.Text_IO;
with Ada.Text_IO;                   use Ada.Text_IO;

with GNAT.Spitbol;                  use GNAT.Spitbol;
with GNAT.Spitbol.Patterns;         use GNAT.Spitbol.Patterns;
with GNAT.Spitbol.Table_VString;

procedure CEinfo is

   package TV renames GNAT.Spitbol.Table_VString;
   use TV;

   Infil  : File_Type;
   Lineno : Natural := 0;

   Err : exception;
   --  Raised on fatal error

   Fieldnm    : VString;
   Accessfunc : VString;
   Line       : VString;

   Fields : GNAT.Spitbol.Table_VString.Table (500);
   --  Maps field names to underlying field access name

   UC : Pattern := Any ("ABCDEFGHIJKLMNOPQRSTUVWXYZ");

   Fnam : Pattern := (UC & Break (' ')) * Fieldnm;

   Field_Def : Pattern := "--    " & Fnam & " (" & Break (')') * Accessfunc;

   Field_Ref : Pattern := "   --    " & Fnam & Break ('(') & Len (1) &
                            Break (')') * Accessfunc;

   Field_Com : Pattern := "   --    " & Fnam & Span (' ') &
                            (Break (' ') or Rest) * Accessfunc;

   Func_Hedr : Pattern := "   function " & Fnam;

   Func_Retn : Pattern := "      return " & Break (' ') * Accessfunc;

   Proc_Hedr : Pattern := "   procedure " & Fnam;

   Proc_Setf : Pattern := "      Set_" & Break (' ') * Accessfunc;

   procedure Next_Line;
   --  Read next line trimmed from Infil into Line and bump Lineno

   procedure Next_Line is
   begin
      Line := Get_Line (Infil);
      Trim (Line);
      Lineno := Lineno + 1;
   end Next_Line;

--  Start of processing for CEinfo

begin
   Anchored_Mode := True;
   New_Line;
   Open (Infil, In_File, "einfo.ads");

   Put_Line ("Acquiring field names from spec");

   loop
      Next_Line;
      exit when Match (Line, "   -- Access Kinds --");

      if Match (Line, Field_Def) then
         Set (Fields, Fieldnm, Accessfunc);
      end if;
   end loop;

   Put_Line ("Checking consistent references in spec");

   loop
      Next_Line;
      exit when Match (Line, "   -- Description of Defined");
   end loop;

   loop
      Next_Line;
      exit when Match (Line, "   -- Component_Alignment Control");

      if Match (Line, Field_Ref) then
         if Accessfunc /= "synth"
              and then
            Accessfunc /= "special"
              and then
            Accessfunc /= Get (Fields, Fieldnm)
         then
            if Present (Fields, Fieldnm) then
               Put_Line ("*** field name incorrect at line " & Lineno);
               Put_Line ("      found field " & Accessfunc);
               Put_Line ("      expecting field " & Get (Fields, Fieldnm));

            else
               Put_Line
                 ("*** unknown field name " & Fieldnm & " at line " & Lineno);
            end if;
         end if;
      end if;
   end loop;

   Close (Infil);
   Open (Infil, In_File, "einfo.adb");
   Lineno := 0;

   Put_Line ("Check listing of fields in body");

   loop
      Next_Line;
      exit when Match (Line, "   -- Attribute Access Functions --");

      if Match (Line, Field_Com)
        and then Fieldnm /= "(unused)"
        and then Accessfunc /= Get (Fields, Fieldnm)
      then
         if Present (Fields, Fieldnm) then
            Put_Line ("*** field name incorrect at line " & Lineno);
            Put_Line ("      found field " & Accessfunc);
            Put_Line ("      expecting field " & Get (Fields, Fieldnm));

         else
            Put_Line
              ("*** unknown field name " & Fieldnm & " at line " & Lineno);
         end if;
      end if;
   end loop;

   Put_Line ("Check references in access routines in body");

   loop
      Next_Line;
      exit when Match (Line, "   -- Classification Functions --");

      if Match (Line, Func_Hedr) then
         null;

      elsif Match (Line, Func_Retn)
        and then Accessfunc /= Get (Fields, Fieldnm)
        and then Fieldnm /= "Mechanism"
      then
         Put_Line ("*** incorrect field at line " & Lineno);
         Put_Line ("      found field " & Accessfunc);
         Put_Line ("      expecting field " & Get (Fields, Fieldnm));
      end if;
   end loop;

   Put_Line ("Check references in set routines in body");

   loop
      Next_Line;
      exit when Match (Line, "   -- Attribute Set Procedures");
   end loop;

   loop
      Next_Line;
      exit when Match (Line, "   ------------");

      if Match (Line, Proc_Hedr) then
         null;

      elsif Match (Line, Proc_Setf)
        and then Accessfunc /= Get (Fields, Fieldnm)
        and then Fieldnm /= "Mechanism"
      then
         Put_Line ("*** incorrect field at line " & Lineno);
         Put_Line ("      found field " & Accessfunc);
         Put_Line ("      expecting field " & Get (Fields, Fieldnm));
      end if;
   end loop;

   Put_Line ("All tests completed successfully, no errors detected");

end CEinfo;