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
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
|
-------------------------------------------------------------------------------
-- (C) Altran Praxis Limited
-------------------------------------------------------------------------------
--
-- The SPARK toolset is free software; you can redistribute it and/or modify it
-- under terms of the GNU General Public License as published by the Free
-- Software Foundation; either version 3, or (at your option) any later
-- version. The SPARK toolset is distributed in the hope that it will be
-- useful, but WITHOUT 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 the SPARK toolset; see file
-- COPYING3. If not, go to http://www.gnu.org/licenses for a complete copy of
-- the license.
--
--=============================================================================
separate (ErrorHandler)
package body WarningStatus
--# own SuppressionList is Pragma_List,
--# Something_Suppressed,
--# Suppressed_Element,
--# Suppress_All_Pragmas;
is
subtype Pragma_Counts is Integer range 0 .. ExaminerConstants.MaxPragmasInWarningFile;
subtype Pragma_Index is Integer range 1 .. ExaminerConstants.MaxPragmasInWarningFile;
type Pragma_Arrays is array (Pragma_Index) of LexTokenManager.Lex_String;
type Pragma_Lists is record
Pragma_Array : Pragma_Arrays;
Pragma_Count : Pragma_Counts;
end record;
type Suppressed_Element_Array is array (ErrorHandler.Warning_Elements) of Boolean;
Suppressed_Element : Suppressed_Element_Array;
Pragma_List : Pragma_Lists;
Something_Suppressed : Boolean;
Suppress_All_Pragmas : Boolean;
---------------------------------------------------------------------------
function Pragma_Found (Pragma_Name : LexTokenManager.Lex_String) return Boolean
--# global in LexTokenManager.State;
--# in Pragma_List;
is
Look_At, Left, Right : Integer;
Found : Boolean;
Match_Res : LexTokenManager.Str_Comp_Result;
function Match_Check (Pos : Integer) return LexTokenManager.Str_Comp_Result
--# global in LexTokenManager.State;
--# in Pragma_List;
--# in Pragma_Name;
is
begin
return LexTokenManager.Lex_String_Case_Insensitive_Compare
(Lex_Str1 => Pragma_List.Pragma_Array (Pos),
Lex_Str2 => Pragma_Name);
end Match_Check;
begin
Left := 0;
Right := Pragma_List.Pragma_Count + 1;
Found := False;
loop
exit when (Left + 1) = Right;
Look_At := (Left + Right) / 2;
Match_Res := Match_Check (Look_At);
if Match_Res = LexTokenManager.Str_Eq then
Found := True;
exit;
end if;
if Match_Res = LexTokenManager.Str_First then
Left := Look_At;
else
Right := Look_At;
end if;
end loop;
return Found;
end Pragma_Found;
---------------------------------------------------------------------------
procedure ReadWarningFile
--# global in CommandLineData.Content;
--# in out ErrorHandler.File_Open_Error;
--# in out LexTokenManager.State;
--# in out Pragma_List;
--# in out Something_Suppressed;
--# in out SPARK_IO.File_Sys;
--# in out Suppressed_Element;
--# in out Suppress_All_Pragmas;
--# derives ErrorHandler.File_Open_Error from *,
--# CommandLineData.Content,
--# SPARK_IO.File_Sys &
--# LexTokenManager.State,
--# SPARK_IO.File_Sys,
--# Suppressed_Element,
--# Suppress_All_Pragmas from *,
--# CommandLineData.Content,
--# LexTokenManager.State,
--# Pragma_List,
--# SPARK_IO.File_Sys &
--# Pragma_List from *,
--# CommandLineData.Content,
--# LexTokenManager.State,
--# SPARK_IO.File_Sys,
--# Suppress_All_Pragmas &
--# Something_Suppressed from *,
--# CommandLineData.Content,
--# LexTokenManager.State,
--# Pragma_List,
--# SPARK_IO.File_Sys,
--# Suppressed_Element;
is separate;
---------------------------------------------------------------------------
function Is_Suppressed (The_Element : ErrorHandler.Warning_Elements) return Boolean
--# global in Suppressed_Element;
is
begin
return Suppressed_Element (The_Element);
end Is_Suppressed;
---------------------------------------------------------------------------
function Pragma_Is_Suppressed (Pragma_Name : LexTokenManager.Lex_String) return Boolean
--# global in LexTokenManager.State;
--# in Pragma_List;
--# in Suppress_All_Pragmas;
is
Result : Boolean;
begin
Result := Suppress_All_Pragmas;
if not Result then
Result := Pragma_Found (Pragma_Name => Pragma_Name);
end if;
return Result;
end Pragma_Is_Suppressed;
---------------------------------------------------------------------------
function Get_Description
(Item : in ErrorHandler.Warning_Elements;
P1 : in String;
P2 : in String)
return E_Strings.T
is
Tmp_String, Result : E_Strings.T;
Posn : E_Strings.Lengths;
begin
-- The messages are parmeterised for different message formats.
-- The substring %%1 is substituted with the string P1 and
-- the substring %%2 is substituted with the string P2.
-- Some message formats require a simple "s character to represent a
-- plural whereas others require the string "(s)". In one case in one
-- format has a plural whereas another does not.
-- This complex scheme is to maintain compatibility with an earlier
-- message scheme.
case Item is
when ErrorHandler.Pragmas =>
Tmp_String := E_Strings.Copy_String (Str => "Pragma%%1");
when ErrorHandler.Hidden_Parts =>
Tmp_String := E_Strings.Copy_String (Str => "Hidden part%%1");
when ErrorHandler.Handler_Parts =>
Tmp_String := E_Strings.Copy_String (Str => "Hidden exception handler part%%1");
when ErrorHandler.Representation_Clauses =>
Tmp_String := E_Strings.Copy_String (Str => "Representation clause%%1");
when ErrorHandler.Direct_Updates =>
Tmp_String := E_Strings.Copy_String (Str => "Direct update%%1 of own variable(s) of non-enclosing package%%1");
when ErrorHandler.With_Clauses =>
Tmp_String := E_Strings.Copy_String (Str => "With clause%%1 lacking a supporting inherit");
when ErrorHandler.Static_Expressions =>
Tmp_String := E_Strings.Copy_String (Str => "Static expression%%1 too complex for Examiner");
when ErrorHandler.Style_Check_Casing =>
Tmp_String := E_Strings.Copy_String (Str => "Style check casing");
when ErrorHandler.Unused_Variables =>
Tmp_String := E_Strings.Copy_String (Str => "Variable%%1 declared but not used");
when ErrorHandler.Constant_Variables =>
Tmp_String := E_Strings.Copy_String (Str => "Variable%%1 used as constants");
when ErrorHandler.Type_Conversions =>
Tmp_String := E_Strings.Copy_String (Str => "Unnecessary type conversion%%1");
when ErrorHandler.SLI_Generation =>
Tmp_String := E_Strings.Copy_String (Str => "Stop SLI generation");
when ErrorHandler.Index_Manager_Duplicates =>
Tmp_String := E_Strings.Copy_String (Str => "Duplicate entry in index files");
when ErrorHandler.Others_Clauses =>
Tmp_String := E_Strings.Copy_String (Str => "Unnecessary others clause%%1");
when ErrorHandler.Imported_Objects =>
Tmp_String := E_Strings.Copy_String (Str => "Use%%1 of pragma Import on objects");
when ErrorHandler.Unexpected_Address_Clauses =>
Tmp_String := E_Strings.Copy_String (Str => "Unexpected address clause%%1");
when ErrorHandler.Main_Program_Precondition =>
Tmp_String := E_Strings.Copy_String (Str => "Precondition on main program");
when ErrorHandler.Proof_Function_Non_Boolean =>
Tmp_String := E_Strings.Copy_String (Str => "Non-boolean proof functions");
when ErrorHandler.Proof_Function_Implicit =>
Tmp_String := E_Strings.Copy_String (Str => "Proof functions with implicit return");
when ErrorHandler.Proof_Function_Refinement =>
Tmp_String := E_Strings.Copy_String (Str => "Refined proof functions");
when ErrorHandler.Expression_Reordering =>
Tmp_String := E_Strings.Copy_String (Str => "Reordering of expressions");
when ErrorHandler.Notes =>
Tmp_String := E_Strings.Copy_String (Str => "Note%%1");
when ErrorHandler.Unuseable_Private_Types =>
Tmp_String := E_Strings.Copy_String (Str => "Private type%%1 lacking method of initialization");
when ErrorHandler.External_Variable_Assignment =>
Tmp_String := E_Strings.Copy_String (Str => "Assignment%%2 or return%%2 of external variables");
when ErrorHandler.Declare_Annotations =>
Tmp_String := E_Strings.Copy_String (Str => "Declare annotations in non Ravenscar programs");
when ErrorHandler.Interrupt_Handlers =>
Tmp_String := E_Strings.Copy_String (Str => "Protected objects that include interrupt handlers");
when ErrorHandler.Unchecked_Conversion =>
Tmp_String := E_Strings.Copy_String (Str => "Use%%1 of instantiations of Unchecked_Conversion");
when ErrorHandler.Ada2005_Reserved_Words =>
Tmp_String := E_Strings.Copy_String (Str => "Use%%1 of Ada2005 reserved words");
when ErrorHandler.Obsolescent_Features =>
Tmp_String := E_Strings.Copy_String (Str => "Use%%1 of obsolete feature from Ada83 in SPARK 95 mode");
when ErrorHandler.Default_Loop_Assertions =>
Tmp_String := E_Strings.Copy_String (Str => "Generation of default loop assertions");
when ErrorHandler.Real_RTCs =>
Tmp_String := E_Strings.Copy_String (Str => "Generation of RTCs on real numbers");
end case;
Posn := 0;
Result := E_Strings.Empty_String;
while Posn < E_Strings.Get_Length (E_Str => Tmp_String) loop
Posn := Posn + 1;
if Posn + 2 <= E_Strings.Get_Length (E_Str => Tmp_String)
and then E_Strings.Get_Element (E_Str => Tmp_String,
Pos => Posn) = '%'
and then E_Strings.Get_Element (E_Str => Tmp_String,
Pos => Posn + 1) = '%'
and then (E_Strings.Get_Element (E_Str => Tmp_String,
Pos => Posn + 2) = '1'
or else E_Strings.Get_Element (E_Str => Tmp_String,
Pos => Posn + 2) = '2') then
if E_Strings.Get_Element (E_Str => Tmp_String,
Pos => Posn + 2) = '1' then
E_Strings.Append_String (E_Str => Result,
Str => P1);
else
E_Strings.Append_String (E_Str => Result,
Str => P2);
end if;
Posn := Posn + 2;
else
E_Strings.Append_Char (E_Str => Result,
Ch => E_Strings.Get_Element (E_Str => Tmp_String,
Pos => Posn));
end if;
end loop;
return Result;
end Get_Description;
---------------------------------------------------------------------------
procedure Output_Warning_List (To_File : in SPARK_IO.File_Type)
--# global in CommandLineData.Content;
--# in LexTokenManager.State;
--# in Pragma_List;
--# in Something_Suppressed;
--# in Suppressed_Element;
--# in Suppress_All_Pragmas;
--# in out SPARK_IO.File_Sys;
--# in out XMLReport.State;
--# derives SPARK_IO.File_Sys from *,
--# CommandLineData.Content,
--# LexTokenManager.State,
--# Pragma_List,
--# Something_Suppressed,
--# Suppressed_Element,
--# Suppress_All_Pragmas,
--# To_File,
--# XMLReport.State &
--# XMLReport.State from *,
--# CommandLineData.Content,
--# Pragma_List,
--# Something_Suppressed,
--# Suppressed_Element,
--# Suppress_All_Pragmas;
is
Description : E_Strings.T;
procedure Put_Pragmas
--# global in CommandLineData.Content;
--# in LexTokenManager.State;
--# in Pragma_List;
--# in Suppressed_Element;
--# in Suppress_All_Pragmas;
--# in To_File;
--# in out SPARK_IO.File_Sys;
--# in out XMLReport.State;
--# derives SPARK_IO.File_Sys from *,
--# CommandLineData.Content,
--# LexTokenManager.State,
--# Pragma_List,
--# Suppressed_Element,
--# Suppress_All_Pragmas,
--# To_File,
--# XMLReport.State &
--# XMLReport.State from *,
--# CommandLineData.Content,
--# Pragma_List,
--# Suppressed_Element,
--# Suppress_All_Pragmas;
is
Wrap : constant Integer := 72;
Margin : constant Integer := 14;
Column : Integer;
Punct : Character;
Pragma_Str : E_Strings.T;
procedure Put_Pragma_Name (Str : LexTokenManager.Lex_String)
--# global in LexTokenManager.State;
--# in To_File;
--# in out Column;
--# in out Punct;
--# in out SPARK_IO.File_Sys;
--# derives Column from *,
--# LexTokenManager.State,
--# Str &
--# Punct from &
--# SPARK_IO.File_Sys from *,
--# Column,
--# LexTokenManager.State,
--# Punct,
--# Str,
--# To_File;
is
Result : E_Strings.T;
begin
Result := LexTokenManager.Lex_String_To_String (Lex_Str => Str);
SPARK_IO.Put_Char (To_File, Punct);
SPARK_IO.Put_Char (To_File, ' ');
Punct := ',';
Column := Column + 2;
if Column + E_Strings.Get_Length (E_Str => Result) > Wrap then
SPARK_IO.New_Line (To_File, 1);
SPARK_IO.Put_String (To_File, " ", 0);
Column := Margin;
end if;
E_Strings.Put_String (File => To_File,
E_Str => Result);
Column := Column + E_Strings.Get_Length (E_Str => Result);
end Put_Pragma_Name;
function Get_Pragma_Name (Str : LexTokenManager.Lex_String) return E_Strings.T
--# global in LexTokenManager.State;
is
begin
return LexTokenManager.Lex_String_To_String (Lex_Str => Str);
end Get_Pragma_Name;
begin --Put_Pragmas
if CommandLineData.Content.XML then
if Suppress_All_Pragmas then
Pragma_Str := E_Strings.Copy_String (Str => "all");
XMLReport.Suppressed_Pragma (Item => Pragma_Str);
E_Strings.Put_String (File => To_File,
E_Str => Pragma_Str);
elsif Suppressed_Element (ErrorHandler.Pragmas) then
for I in Integer range 1 .. Pragma_List.Pragma_Count loop
Pragma_Str := Get_Pragma_Name (Str => Pragma_List.Pragma_Array (I));
XMLReport.Suppressed_Pragma (Item => Pragma_Str);
E_Strings.Put_String (File => To_File,
E_Str => Pragma_Str);
end loop;
end if;
else
if Suppress_All_Pragmas then
SPARK_IO.Put_Line (To_File, " All pragmas", 0);
elsif Suppressed_Element (ErrorHandler.Pragmas) then
Column := Margin;
Punct := ':';
SPARK_IO.Put_String (File => To_File,
Item => " ",
Stop => 0);
E_Strings.Put_String (File => To_File,
E_Str => Get_Description (Item => ErrorHandler.Pragmas,
P1 => "s",
P2 => ""));
for I in Integer range 1 .. Pragma_List.Pragma_Count loop
Put_Pragma_Name (Str => Pragma_List.Pragma_Array (I));
end loop;
end if;
SPARK_IO.New_Line (To_File, 1);
end if;
end Put_Pragmas;
begin --Output_Warning_List
if CommandLineData.Content.XML then
XMLReport.Start_Section (Section => XMLReport.S_Warnings_Config,
Report => To_File);
if Something_Suppressed then
for I in ErrorHandler.Warning_Elements range ErrorHandler.Hidden_Parts .. ErrorHandler.Warning_Elements'Last loop
if Suppressed_Element (I) then
Description := Get_Description (Item => I,
P1 => "s",
P2 => "");
XMLReport.Suppressed (Item => Description);
E_Strings.Put_String (File => To_File,
E_Str => Description);
end if;
end loop;
Put_Pragmas;
end if;
XMLReport.End_Section (Section => XMLReport.S_Warnings_Config,
Report => To_File);
else
SPARK_IO.New_Line (To_File, 2);
if Something_Suppressed then
SPARK_IO.Put_Line (To_File, "Summary warning reporting selected for:", 0);
for I in ErrorHandler.Warning_Elements range ErrorHandler.Hidden_Parts .. ErrorHandler.Warning_Elements'Last loop
if Suppressed_Element (I) then
SPARK_IO.Put_String (File => To_File,
Item => " ",
Stop => 0);
E_Strings.Put_Line (File => To_File,
E_Str => Get_Description (Item => I,
P1 => "s",
P2 => ""));
end if;
end loop;
Put_Pragmas;
else
SPARK_IO.Put_Line (To_File, "Full warning reporting selected", 0);
end if;
end if;
end Output_Warning_List;
---------------------------------------------------------------------------
procedure Report_Suppressed_Warnings (To_File : in SPARK_IO.File_Type;
Counter : in ErrorHandler.Counters)
--# global in Something_Suppressed;
--# in Suppressed_Element;
--# in out SPARK_IO.File_Sys;
--# derives SPARK_IO.File_Sys from *,
--# Counter,
--# Something_Suppressed,
--# Suppressed_Element,
--# To_File;
is
Indent : constant Integer := 6;
Total_Warnings : Integer;
Severe_Warning : Boolean := False;
Tmp_String : E_Strings.T;
procedure Put_Count (Count : in Integer;
Width : in Integer)
--# global in To_File;
--# in out SPARK_IO.File_Sys;
--# derives SPARK_IO.File_Sys from *,
--# Count,
--# To_File,
--# Width;
is
begin
SPARK_IO.Put_Integer (To_File, Count, Width, 10);
end Put_Count;
begin --Report_Suppressed_Warnings
if Something_Suppressed then
Total_Warnings := 0;
for I in ErrorHandler.Warning_Elements loop
Total_Warnings := Total_Warnings + Integer (Counter (I));
end loop;
if Total_Warnings = 0 then
SPARK_IO.Put_Line (To_File, "No summarized warnings", 0);
SPARK_IO.New_Line (To_File, 1);
else
Put_Count (Count => Total_Warnings,
Width => 0);
SPARK_IO.Put_Line (To_File, " summarized warning(s), comprising:", 0);
for I in ErrorHandler.Warning_Elements loop
if Suppressed_Element (I) and then Counter (I) > 0 then
Put_Count (Count => Integer (Counter (I)),
Width => Indent);
SPARK_IO.Put_Char (File => To_File,
Item => ' ');
Tmp_String := Get_Description (Item => I,
P1 => "(s)",
P2 => "(s)");
if E_Strings.Get_Length (E_Str => Tmp_String) > 0 then
Tmp_String := E_Strings.Lower_Case_Char (E_Str => Tmp_String,
Pos => 1);
end if;
E_Strings.Put_String (File => To_File,
E_Str => Tmp_String);
if I in ErrorHandler.Severe_Warnings then
SPARK_IO.Put_Char (To_File, '*');
Severe_Warning := True;
end if;
SPARK_IO.New_Line (To_File, 1);
end if;
end loop;
if Severe_Warning then
SPARK_IO.Put_Line (To_File, "(*Note: the above warnings may affect the validity of the analysis.)", 0);
end if;
SPARK_IO.New_Line (To_File, 1);
end if;
end if;
end Report_Suppressed_Warnings;
---------------------------------------------------------------------------
begin
Suppressed_Element := Suppressed_Element_Array'(others => False);
Pragma_List.Pragma_Count := 0; --will cause flow error
Suppress_All_Pragmas := False;
Something_Suppressed := False;
--# accept Flow, 32, Pragma_List.Pragma_Array, "Init. is partial but effective." &
--# Flow, 31, Pragma_List.Pragma_Array, "Init. is partial but effective." &
--# Flow, 602, Pragma_List, Pragma_List.Pragma_Array, "Init. is partial but effective.";
end WarningStatus;
|
