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|
-------------------------------------------------------------------------------
-- (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.
--
--=============================================================================
with Ada.Characters.Latin_1;
with CommandLineHandler;
separate (ErrorHandler.WarningStatus)
procedure ReadWarningFile is
Option : E_Strings.T;
File_OK : Boolean;
Warning_File : SPARK_IO.File_Type;
procedure Open_File
--# global in CommandLineData.Content;
--# in out SPARK_IO.File_Sys;
--# out File_OK;
--# out Warning_File;
--# derives File_OK,
--# SPARK_IO.File_Sys,
--# Warning_File from CommandLineData.Content,
--# SPARK_IO.File_Sys;
is
File_Name : E_Strings.T;
File_Spec_Status : FileSystem.Typ_File_Spec_Status;
File_Status : SPARK_IO.File_Status;
begin
--# accept Flow, 10, File_Spec_Status, "Expected ineffective assignment to File_Spec_Status";
FileSystem.Find_Full_File_Name
(File_Spec => CommandLineData.Content.Warning_File_Name,
File_Status => File_Spec_Status,
Full_File_Name => File_Name);
--# end accept;
Warning_File := SPARK_IO.Null_File; -- to avoid error on opening
E_Strings.Open
(File => Warning_File,
Mode_Of_File => SPARK_IO.In_File,
Name_Of_File => File_Name,
Form_Of_File => "",
Status => File_Status);
if File_Status = SPARK_IO.Ok then
File_OK := True;
else
File_OK := False;
ScreenEcho.Put_String ("Cannot open file ");
if CommandLineData.Content.Plain_Output then
ScreenEcho.Put_ExaminerLine (FileSystem.Just_File (Fn => File_Name,
Ext => True));
else
ScreenEcho.Put_ExaminerLine (File_Name);
end if;
end if;
--# accept Flow, 33, File_Spec_Status, "Expected File_Spec_Status to be neither referenced nor exported";
end Open_File;
------------------------------------------------
procedure Close_File
--# global in Warning_File;
--# in out SPARK_IO.File_Sys;
--# derives SPARK_IO.File_Sys from *,
--# Warning_File;
is
File_Status : SPARK_IO.File_Status;
begin
--# accept Flow, 10, File_Status, "Expected ineffective assignment to File_Status" &
--# Flow, 10, Warning_File, "Not assigned to. Due to Text_IO mode in out";
SPARK_IO.Close (Warning_File, File_Status);
--# end accept;
--# accept Flow, 33, File_Status, "Expected File_Status to be neither referenced nor exported" &
--# Flow, 34, Warning_File, "Not assigned to. Due to Text_IO mode in out";
end Close_File;
------------------------------------------------
procedure Get_String (File : in SPARK_IO.File_Type;
Str : out E_Strings.T)
--# global in out SPARK_IO.File_Sys;
--# derives SPARK_IO.File_Sys,
--# Str from File,
--# SPARK_IO.File_Sys;
is
Char_OK : Boolean;
Ch : Character;
procedure Get_Char (File : in SPARK_IO.File_Type;
Ch : out Character;
OK : out Boolean)
--# global in out SPARK_IO.File_Sys;
--# derives Ch,
--# OK,
--# SPARK_IO.File_Sys from File,
--# SPARK_IO.File_Sys;
is
Ch_Local : Character;
begin
if SPARK_IO.End_Of_File (File) then
OK := False;
Ch := ' ';
elsif SPARK_IO.End_Of_Line (File) then
SPARK_IO.Skip_Line (File, 1);
OK := True;
Ch := ' ';
else
SPARK_IO.Get_Char (File, Ch_Local);
if (Ch_Local = Ada.Characters.Latin_1.HT) or (Ch_Local = Ada.Characters.Latin_1.CR) then
Ch_Local := ' ';
end if;
if Ch_Local = '-' then --must be comment start
SPARK_IO.Skip_Line (File, 1);
OK := True;
Ch := ' ';
else --valid character to return
OK := True;
Ch := Ch_Local;
end if;
end if;
end Get_Char;
begin --Get_String
Str := E_Strings.Empty_String;
--skip leading white space
loop
Get_Char (File => File,
Ch => Ch,
OK => Char_OK);
exit when Ch /= ' ';
exit when not Char_OK;
end loop;
if Char_OK then
loop
E_Strings.Append_Char (E_Str => Str,
Ch => Ch);
Get_Char (File => File,
Ch => Ch,
OK => Char_OK);
exit when Ch = ' ';
exit when not Char_OK;
end loop;
end if;
end Get_String;
-----------------------------------
procedure Invalid_Option (Opt : E_Strings.T)
--# global in CommandLineData.Content;
--# in Warning_File;
--# in out SPARK_IO.File_Sys;
--# derives SPARK_IO.File_Sys from *,
--# CommandLineData.Content,
--# Opt,
--# Warning_File;
is
begin
if CommandLineData.Content.Brief then
if CommandLineData.Content.Plain_Output then
ScreenEcho.Put_ExaminerString (FileSystem.Just_File (Fn => CommandLineData.Content.Warning_File_Name,
Ext => True));
else
ScreenEcho.Put_ExaminerString (CommandLineData.Content.Warning_File_Name);
end if;
ScreenEcho.Put_Char (':');
ScreenEcho.Put_Integer (SPARK_IO.Line (Warning_File), 0, 10);
ScreenEcho.Put_Char (':');
ScreenEcho.Put_Integer (1, 0, 10);
ScreenEcho.Put_Char (':');
ScreenEcho.Put_String ("Invalid warning option: ");
ScreenEcho.Put_ExaminerLine (Opt);
else
ScreenEcho.Put_String ("Invalid warning option: ");
ScreenEcho.Put_ExaminerLine (Opt);
end if;
end Invalid_Option;
-------------------------------
procedure Process_Option (Opt : in E_Strings.T)
--# global in CommandLineData.Content;
--# in Warning_File;
--# in out LexTokenManager.State;
--# in out Pragma_List;
--# in out SPARK_IO.File_Sys;
--# in out Suppressed_Element;
--# in out Suppress_All_Pragmas;
--# derives LexTokenManager.State,
--# Pragma_List from LexTokenManager.State,
--# Opt,
--# Pragma_List,
--# SPARK_IO.File_Sys,
--# Warning_File &
--# SPARK_IO.File_Sys from *,
--# CommandLineData.Content,
--# Opt,
--# Pragma_List,
--# Warning_File &
--# Suppressed_Element from *,
--# Opt &
--# Suppress_All_Pragmas from *,
--# Opt,
--# SPARK_IO.File_Sys,
--# Warning_File;
is
Option_Match : Boolean;
procedure Process_Pragma
--# global in Warning_File;
--# in out LexTokenManager.State;
--# in out Pragma_List;
--# in out SPARK_IO.File_Sys;
--# in out Suppress_All_Pragmas;
--# derives LexTokenManager.State,
--# SPARK_IO.File_Sys from *,
--# Pragma_List,
--# SPARK_IO.File_Sys,
--# Warning_File &
--# Pragma_List from *,
--# LexTokenManager.State,
--# SPARK_IO.File_Sys,
--# Warning_File &
--# Suppress_All_Pragmas from *,
--# SPARK_IO.File_Sys,
--# Warning_File;
is
Pragma_Name : E_Strings.T;
procedure Add_Pragma_Name (Prag : in E_Strings.T)
--# global in out LexTokenManager.State;
--# in out Pragma_List;
--# in out SPARK_IO.File_Sys;
--# derives LexTokenManager.State,
--# SPARK_IO.File_Sys from *,
--# Prag,
--# Pragma_List &
--# Pragma_List from *,
--# LexTokenManager.State,
--# Prag;
is
Lex_Name : LexTokenManager.Lex_String;
begin
if Pragma_List.Pragma_Count < (ExaminerConstants.MaxPragmasInWarningFile - 1) then
LexTokenManager.Insert_Examiner_String (Str => Prag,
Lex_Str => Lex_Name);
Pragma_List.Pragma_Count := Pragma_List.Pragma_Count + 1;
Pragma_List.Pragma_Array (Pragma_List.Pragma_Count) := Lex_Name;
else -- too many
ScreenEcho.Put_String ("Too many pragmas, ignoring: ");
ScreenEcho.Put_ExaminerLine (Prag);
end if;
end Add_Pragma_Name;
begin -- Process_Pragma
Get_String (File => Warning_File,
Str => Pragma_Name);
if E_Strings.Get_Length (E_Str => Pragma_Name) /= 0 then
if CommandLineHandler.Check_Option_Name (Opt_Name => Pragma_Name,
Str => "all") then
Suppress_All_Pragmas := True;
else
Add_Pragma_Name (Prag => Pragma_Name);
end if;
else
ScreenEcho.Put_Line ("Pragma name missing");
end if;
end Process_Pragma;
begin -- Process_Option
Option_Match := False;
case E_Strings.Get_Element (E_Str => Opt,
Pos => 1) is
when 'a' | 'A' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 3) is
when 'a' | 'A' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "ada2005_reserved_words") then
Suppressed_Element (ErrorHandler.Ada2005_Reserved_Words) := True;
Option_Match := True;
end if;
when 'd' | 'D' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "address_clauses") then
Suppressed_Element (ErrorHandler.Unexpected_Address_Clauses) := True;
Option_Match := True;
end if;
when others =>
null;
end case;
when 'c' | 'C' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "constant_variables") then
Suppressed_Element (ErrorHandler.Constant_Variables) := True;
Option_Match := True;
end if;
when 'd' | 'D' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 2) is
when 'e' | 'E' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 3) is
when 'c' | 'C' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "declare_annotations") then
Suppressed_Element (ErrorHandler.Declare_Annotations) := True;
Option_Match := True;
end if;
when 'f' | 'F' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "default_loop_assertions") then
Suppressed_Element (ErrorHandler.Default_Loop_Assertions) := True;
Option_Match := True;
end if;
when others =>
null; -- falls through with Option_Match false and generates error
end case;
when 'i' | 'I' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "direct_updates") then
Suppressed_Element (ErrorHandler.Direct_Updates) := True;
Option_Match := True;
end if;
when others =>
null;
end case;
when 'e' | 'E' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 3) is
when 'p' | 'P' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "expression_reordering") then
Suppressed_Element (ErrorHandler.Expression_Reordering) := True;
Option_Match := True;
end if;
when 't' | 'T' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "external_assignment") then
Suppressed_Element (ErrorHandler.External_Variable_Assignment) := True;
Option_Match := True;
end if;
when others =>
null;
end case;
when 'h' | 'H' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 2) is
when 'a' | 'A' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "handler_parts") then
Suppressed_Element (ErrorHandler.Handler_Parts) := True;
Option_Match := True;
end if;
when 'i' | 'I' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "hidden_parts") then
Suppressed_Element (ErrorHandler.Hidden_Parts) := True;
Option_Match := True;
end if;
when others =>
null;
end case;
when 'i' | 'I' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 2) is
when 'm' | 'M' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "imported_objects") then
Suppressed_Element (ErrorHandler.Imported_Objects) := True;
Option_Match := True;
end if;
when 'n' | 'N' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 3) is
when 'd' | 'D' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "index_manager_duplicates") then
Suppressed_Element (ErrorHandler.Index_Manager_Duplicates) := True;
Option_Match := True;
end if;
when 't' | 'T' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "interrupt_handlers") then
Suppressed_Element (ErrorHandler.Interrupt_Handlers) := True;
Option_Match := True;
end if;
when others =>
null;
end case;
when others =>
null;
end case;
when 'm' | 'M' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "main_program_precondition") then
Suppressed_Element (ErrorHandler.Main_Program_Precondition) := True;
Option_Match := True;
end if;
when 'n' | 'N' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "notes") then
Suppressed_Element (ErrorHandler.Notes) := True;
Option_Match := True;
end if;
when 'o' | 'O' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 2) is
when 'b' | 'B' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "obsolescent_features") then
Suppressed_Element (ErrorHandler.Obsolescent_Features) := True;
Option_Match := True;
end if;
when 't' | 'T' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "others_clauses") then
Suppressed_Element (ErrorHandler.Others_Clauses) := True;
Option_Match := True;
end if;
when others =>
null;
end case;
when 'p' | 'P' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 3) is
when 'a' | 'A' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "pragma") then
Suppressed_Element (ErrorHandler.Pragmas) := True;
Process_Pragma;
Option_Match := True;
end if;
when 'i' | 'I' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "private_types") then
Suppressed_Element (ErrorHandler.Unuseable_Private_Types) := True;
Option_Match := True;
end if;
when 'o' | 'O' =>
-- We need to check that at least "proof_function_"
-- (15 characters) and then one more letter is
-- written down, otherwise these all look the same
-- and the annoying short-hand features always pick
-- the first warning keyword we check for.
if E_Strings.Get_Length (Opt) >= 16 then
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "proof_function_non_boolean") then
Suppressed_Element (ErrorHandler.Proof_Function_Non_Boolean) := True;
Option_Match := True;
elsif CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "proof_function_implicit") then
Suppressed_Element (ErrorHandler.Proof_Function_Implicit) := True;
Option_Match := True;
elsif CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "proof_function_refinement") then
Suppressed_Element (ErrorHandler.Proof_Function_Refinement) := True;
Option_Match := True;
end if;
end if;
when others =>
null;
end case;
when 'r' | 'R' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 3) is
when 'a' | 'A' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "real_rtcs") then
Suppressed_Element (ErrorHandler.Real_RTCs) := True;
Option_Match := True;
end if;
when 'p' | 'P' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "representation_clauses") then
Suppressed_Element (ErrorHandler.Representation_Clauses) := True;
Option_Match := True;
end if;
when others =>
null;
end case;
when 's' | 'S' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 2) is
when 'l' | 'L' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "sli_generation") then
Suppressed_Element (ErrorHandler.SLI_Generation) := True;
Option_Match := True;
end if;
when 't' | 'T' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 3) is
when 'a' | 'A' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "static_expressions") then
Suppressed_Element (ErrorHandler.Static_Expressions) := True;
Option_Match := True;
end if;
when 'y' | 'Y' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "style_check_casing") then
Suppressed_Element (ErrorHandler.Style_Check_Casing) := True;
Option_Match := True;
end if;
when others =>
null;
end case;
when others =>
null;
end case;
when 't' | 'T' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "type_conversions") then
Suppressed_Element (ErrorHandler.Type_Conversions) := True;
Option_Match := True;
end if;
when 'u' | 'U' =>
case E_Strings.Get_Element (E_Str => Opt,
Pos => 3) is
when 'c' | 'C' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "unchecked_conversion") then
Suppressed_Element (ErrorHandler.Unchecked_Conversion) := True;
Option_Match := True;
end if;
when 'u' | 'U' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "unused_variables") then
Suppressed_Element (ErrorHandler.Unused_Variables) := True;
Option_Match := True;
end if;
when others =>
null;
end case;
when 'w' | 'W' =>
if CommandLineHandler.Check_Option_Name (Opt_Name => Opt,
Str => "with_clauses") then
Suppressed_Element (ErrorHandler.With_Clauses) := True;
Option_Match := True;
end if;
when others =>
null;
end case;
if not Option_Match then
Invalid_Option (Opt => Opt);
end if;
end Process_Option;
-------------------------------
procedure Sort_Pragmas
--# global in LexTokenManager.State;
--# in Suppress_All_Pragmas;
--# in out Pragma_List;
--# derives Pragma_List from *,
--# LexTokenManager.State,
--# Suppress_All_Pragmas;
is
J : Integer;
Val : LexTokenManager.Lex_String;
begin
if not Suppress_All_Pragmas and then Pragma_List.Pragma_Count > 1 then
for I in reverse Integer range 1 .. Pragma_List.Pragma_Count - 1 loop
J := I;
Val := Pragma_List.Pragma_Array (J);
while J < Pragma_List.Pragma_Count
and then LexTokenManager.Lex_String_Case_Insensitive_Compare
(Lex_Str1 => Pragma_List.Pragma_Array (J + 1),
Lex_Str2 => Val) =
LexTokenManager.Str_First loop
Pragma_List.Pragma_Array (J) := Pragma_List.Pragma_Array (J + 1);
J := J + 1;
end loop;
Pragma_List.Pragma_Array (J) := Val;
end loop;
end if;
end Sort_Pragmas;
begin --ReadWarningFile
if CommandLineData.Content.Warning then
Open_File;
if File_OK then
if CommandLineData.Content.Echo and not CommandLineData.Content.Brief then
ScreenEcho.New_Line (1);
ScreenEcho.Put_Line (" Reading warning control file ...");
end if;
loop
Get_String (File => Warning_File,
Str => Option);
exit when E_Strings.Get_Length (E_Str => Option) = 0;
Process_Option (Opt => Option);
end loop;
Close_File;
Sort_Pragmas;
for I in ErrorHandler.Warning_Elements loop
Something_Suppressed := Something_Suppressed or Suppressed_Element (I);
end loop;
else
ErrorHandler.File_Open_Error := True;
end if;
end if;
end ReadWarningFile;
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