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|
------------------------------------------------------------------------------
-- --
-- ASIS UTILITY LIBRARY COMPONENTS --
-- --
-- A S I S _ U L . S O U R C E _ T A B L E . P R O C E S S I N G --
-- --
-- B o d y --
-- --
-- Copyright (C) 2004-2010, AdaCore --
-- --
-- Asis Utility Library (ASIS UL) 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 2, or (at your --
-- option) any later version. ASIS UL 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 GNAT; see file --
-- COPYING. If not, write to the Free Software Foundation, 51 Franklin --
-- Street, Fifth Floor, Boston, MA 02110-1301, USA. --
-- --
-- ASIS UL is maintained by AdaCore (http://www.adacore.com). --
-- --
------------------------------------------------------------------------------
pragma Ada_2005; -- To make the unit compilable with Ada 95 compiler
with Ada.Characters.Conversions; use Ada.Characters.Conversions;
with GNAT.OS_Lib; use GNAT.OS_Lib;
with Asis; use Asis;
with Asis.Ada_Environments;
with Asis.Compilation_Units; use Asis.Compilation_Units;
with Asis.Errors;
with Asis.Exceptions;
with Asis.Extensions; use Asis.Extensions;
with Asis.Implementation;
with ASIS_UL.Common; use ASIS_UL.Common;
with ASIS_UL.Debug; use ASIS_UL.Debug;
with ASIS_UL.Options; use ASIS_UL.Options;
with ASIS_UL.Output; use ASIS_UL.Output;
with ASIS_UL.Utilities; use ASIS_UL.Utilities;
package body ASIS_UL.Source_Table.Processing is
------------------------
-- Local subprograms --
------------------------
procedure Process_Sources_From_Table
(Only_Bodies : Boolean := False;
Need_Semantic_Info : Boolean := True;
Add_Needed_Sources : Boolean := False);
-- Processes sources stores in the sources table trying to minimize
-- compilations needed to create the tree files. If Only_Bodies is set ON,
-- only files with .adb suffixes are compiled for the trees.
-- Need_Semantic_Info parameter is used to control unit processin on the
-- base of each tree being created as a part of the call to
-- Process_Sources_From_Table, see the documentation for the Process_Source
-- routine.
-- Add_Needed_Sources is used to specify if the needed sources (spec for
-- a body and subunits for stubs) should be processed even if they are not
-- in the source table, see the documentation for the Process_Source
-- routine.
procedure ASIS_Processing (CU : Asis.Compilation_Unit; SF : SF_Id);
-- This procedure incapsulates all the actions performed in the opened
-- Context with the compilation unit CU corresponding to the source file
-- SF (the caller is responsible for the fact that CU with this SF are
-- represented by the tree making up the currently processed ASIS Context).
-- The corresponding processing is entirely tool-specific, so each tool
-- should provide its own subunit as the actual implementation of this
-- routine.
---------------------
-- ASIS_Processing --
----------------------
-- This is entiraly tool-specific, so the ASIS Utility Library provides
-- an empty place-holder here.
procedure ASIS_Processing (CU : Asis.Compilation_Unit; SF : SF_Id) is
separate;
----------------
-- Initialize --
----------------
-- This is entiraly tool-specific, so the ASIS Utility Library provides
-- an empty place-holder here.
procedure Initialize is separate;
--------------------
-- Process_Source --
--------------------
procedure Process_Source
(SF : SF_Id;
Need_Semantic_Info : Boolean := True;
Add_Needed_Sources : Boolean := False;
Keep_ALI_Files : Boolean := False)
is
Success : Boolean;
Next_SF : SF_Id;
CU_Tmp : Asis.Compilation_Unit;
procedure Process_All_Subunits (CU : Asis.Compilation_Unit);
-- Assuming that CU is of Compilation_Unit kind that may have subunits,
-- recuresively process all the subunits that are the arguments of the
-- tool
procedure Process_All_Subunits (CU : Asis.Compilation_Unit) is
Subunit_List : constant Asis.Compilation_Unit_List := Subunits (CU);
Next_Subunit_SF : SF_Id;
begin
for J in Subunit_List'Range loop
Next_Subunit_SF :=
File_Find (Normalize_Pathname
(To_String (Text_Name (Subunit_List (J))),
Resolve_Links => False,
Case_Sensitive => False));
if Add_Needed_Sources and then not Present (Next_Subunit_SF) then
Add_Needed_Source
(Normalize_Pathname
(To_String (Text_Name (Subunit_List (J))),
Resolve_Links => False,
Case_Sensitive => False));
Total_Sources := Natural (Last_Source);
Sources_Left := Sources_Left + 1;
end if;
if Present (Next_Subunit_SF)
and then
Source_Status (Next_Subunit_SF) = Waiting
then
Output_Source (Next_Subunit_SF);
ASIS_Processing (Subunit_List (J), Next_Subunit_SF);
Process_All_Subunits (Subunit_List (J));
end if;
end loop;
end Process_All_Subunits;
begin
Output_Source (SF);
Create_Tree (SF, Success);
if not Success then
return;
end if;
Asis.Ada_Environments.Associate
(The_Context => The_Context,
Name => "",
Parameters => "-C1 "
& To_Wide_String (Suffixless_Name (SF) & ".adt"));
declare
use type Asis.Errors.Error_Kinds;
begin
Asis.Ada_Environments.Open (The_Context);
Success := True;
if Debug_Flag_T then
Print_Tree_Sources;
end if;
exception
when Asis.Exceptions.ASIS_Failed =>
-- The only known situation when we can not open a C1 context for
-- newly created tree is recompilation of System (see D617-017)
if Asis.Implementation.Status = Asis.Errors.Use_Error
and then
Asis.Implementation.Diagnosis = "Internal implementation error:"
& " Asis.Ada_Environments.Open - System is recompiled"
then
Error ("can not process redefinition of System in " &
Source_Name (SF));
Set_Source_Status (SF, Not_A_Legal_Source);
Success := False;
else
raise;
end if;
end;
if Success then
The_CU := Main_Unit_In_Current_Tree (The_Context);
if Unit_Origin (The_CU) /= An_Application_Unit
and then
not Process_RTL_Units
then
Error ("cannot process RTL unit " & Source_Name (SF) &
" Use '-a' option for processing RTL components");
Set_Source_Status (SF, Processed);
else
-- The following (commented out) code for optimising subunit
-- processing needs revising. Eliminating non-nesessary tree
-- creations for subunits is probably a good idea, but we cannot
-- call Process_Source recursively!
-- if Unit_Class (The_CU) = A_Separate_Body then
-- -- If we have a proper body as the argument source, no need
-- -- to process subunits one-by-one separately:
-- CU_Tmp := Corresponding_Subunit_Parent_Body (The_CU);
-- while Unit_Class (CU_Tmp) = A_Separate_Body loop
-- CU_Tmp := Corresponding_Subunit_Parent_Body (CU_Tmp);
-- end loop;
-- Next_SF :=
-- File_Find (Normalize_Pathname
-- (To_String (Text_Name (CU_Tmp))),
-- Resolve_Links => False,
-- Case_Sensitive => False));
-- if Present (Next_SF) and then
-- Source_Status (Next_SF) = Waiting
-- then
-- Process_Source (Next_SF, Need_Semantic_Info);
-- return;
-- end if;
-- end if;
ASIS_Processing (The_CU, SF);
if Need_Semantic_Info then
-- The problem here is expanded generics - we can process
-- expanded body only for the main unit in the tree (and only
-- in case if we process bodies first!). So, all we can do is
-- to process spec for a body and all the subunits, if any.
--
-- !!! Current approach works with the standard GNAT naming
-- !!! scheme!!!
if Unit_Kind (The_CU) in A_Procedure_Body .. A_Package_Body
or else
Unit_Class (The_CU) = A_Separate_Body
then
if Unit_Kind (The_CU) in
A_Procedure_Body .. A_Package_Body
then
-- Process spec, if exists and not processed yet:
CU_Tmp := Corresponding_Declaration (The_CU);
if not Is_Nil (CU_Tmp) then
Next_SF :=
File_Find (Normalize_Pathname
(To_String (Text_Name (CU_Tmp)),
Resolve_Links => False,
Case_Sensitive => False));
if Add_Needed_Sources
and then
not Present (Next_SF)
then
Add_Needed_Source
(Normalize_Pathname
(To_String (Text_Name (CU_Tmp)),
Resolve_Links => False,
Case_Sensitive => False));
Total_Sources := Natural (Last_Source);
Sources_Left := Sources_Left + 1;
end if;
if Present (Next_SF) and then
Source_Status (Next_SF) = Waiting
then
Output_Source (Next_SF);
ASIS_Processing (CU_Tmp, Next_SF);
end if;
end if;
end if;
Process_All_Subunits (The_CU);
end if;
else
declare
All_CUs : constant Asis.Compilation_Unit_List :=
Asis.Compilation_Units.Compilation_Units (The_Context);
begin
for J in All_CUs'Range loop
if Process_RTL_Units
or else
Unit_Origin (All_CUs (J)) = An_Application_Unit
then
Next_SF :=
File_Find (Normalize_Pathname
(To_String (Text_Name (All_CUs (J))),
Resolve_Links => False,
Case_Sensitive => False));
if Present (Next_SF) and then
Source_Status (Next_SF) = Waiting
then
The_CU := All_CUs (J);
Output_Source (Next_SF);
ASIS_Processing (All_CUs (J), Next_SF);
end if;
end if;
end loop;
exception
when Ex : others =>
Error
("unknown bug detected when processing " &
Source_Name (Next_SF));
Error_No_Tool_Name
("Please submit bug report to report@gnat.com");
Report_Unhandled_Exception (Ex);
Source_Clean_Up (Next_SF);
raise Fatal_Error;
end;
end if;
end if;
end if;
Source_Clean_Up (SF, Keep_ALI_Files);
exception
when Program_Error =>
Error ("installation problem - check "&
Tool_Name.all & " and GNAT versions");
raise Fatal_Error;
when Fatal_Error =>
raise;
when Ex : others =>
Error ("unknown bug detected when processing " & Source_Name (SF));
Error_No_Tool_Name ("Please submit bug report to report@gnat.com");
Report_Unhandled_Exception (Ex);
Source_Clean_Up (SF);
raise Fatal_Error;
end Process_Source;
---------------------
-- Process_Sources --
---------------------
procedure Process_Sources
(Need_Semantic_Info : Boolean := True;
Add_Needed_Sources : Boolean := False)
is
begin
Asis.Implementation.Initialize ("-k -ws -asis05");
Process_Sources_From_Table
(Only_Bodies => True,
Need_Semantic_Info => Need_Semantic_Info,
Add_Needed_Sources => Add_Needed_Sources);
Process_Sources_From_Table
(Need_Semantic_Info => Need_Semantic_Info,
Add_Needed_Sources => Add_Needed_Sources);
Asis.Implementation.Finalize;
end Process_Sources;
--------------------------------
-- Process_Sources_From_Table --
--------------------------------
procedure Process_Sources_From_Table
(Only_Bodies : Boolean := False;
Need_Semantic_Info : Boolean := True;
Add_Needed_Sources : Boolean := False)
is
Next_SF : SF_Id;
begin
Reset_Source_Iterator;
Next_SF := Next_Non_Processed_Source (Only_Bodies);
while Present (Next_SF) loop
Process_Source (Next_SF, Need_Semantic_Info, Add_Needed_Sources);
Next_SF := Next_Non_Processed_Source (Only_Bodies);
end loop;
end Process_Sources_From_Table;
--------------
-- Finalize --
--------------
-- This is entiraly tool-specific, so the ASIS Utility Library provides
-- an empty place-holder here.
procedure Finalize is separate;
end ASIS_UL.Source_Table.Processing;
|
