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451 | ------------------------------------------------------------------------------
-- --
-- ASIS-for-GNAT IMPLEMENTATION COMPONENTS --
-- --
-- A S I S . A D A _ E N V I R O N M E N T S --
-- --
-- B o d y --
-- --
-- Copyright (C) 1995-2008, Free Software Foundation, Inc. --
-- --
-- ASIS-for-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 --
-- Software Foundation; either version 2, or (at your option) any later --
-- version. ASIS-for-GNAT is distributed in the hope that it will be use- --
-- ful, but WITHOUT ANY WARRANTY; without even the implied warranty of MER- --
-- CHANTABILITY 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 ASIS-for-GNAT; see file --
-- COPYING. If not, write to the Free Software Foundation, 51 Franklin --
-- Street, Fifth Floor, Boston, MA 02110-1301, USA. --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- ASIS-for-GNAT was originally developed by the ASIS-for-GNAT team at the --
-- Software Engineering Laboratory of the Swiss Federal Institute of --
-- Technology (LGL-EPFL) in Lausanne, Switzerland, in cooperation with the --
-- Scientific Research Computer Center of Moscow State University (SRCC --
-- MSU), Russia, with funding partially provided by grants from the Swiss --
-- National Science Foundation and the Swiss Academy of Engineering --
-- Sciences. ASIS-for-GNAT is now maintained by AdaCore --
-- (http://www.adaccore.com). --
-- --
------------------------------------------------------------------------------
with Ada.Characters.Handling; use Ada.Characters.Handling;
with Ada.Strings; use Ada.Strings;
with Ada.Strings.Fixed; use Ada.Strings.Fixed;
with Asis.Errors; use Asis.Errors;
with Asis.Exceptions; use Asis.Exceptions;
with Asis.Set_Get; use Asis.Set_Get;
with A4G.A_Debug; use A4G.A_Debug;
with A4G.A_Opt; use A4G.A_Opt;
with A4G.A_Output; use A4G.A_Output;
with A4G.Contt; use A4G.Contt;
with A4G.Contt.TT; use A4G.Contt.TT;
with A4G.Contt.UT; use A4G.Contt.UT;
with A4G.Vcheck; use A4G.Vcheck;
with Output; use Output;
package body Asis.Ada_Environments is
Package_Name : constant String := "Asis.Ada_Environments.";
---------------
-- Associate --
---------------
procedure Associate
(The_Context : in out Asis.Context;
Name : Wide_String;
Parameters : Wide_String := Default_Parameters)
is
S_Parameters : constant String := Trim (To_String (Parameters), Both);
Cont : Context_Id;
begin
Cont := Get_Cont_Id (The_Context);
if not A4G.A_Opt.Is_Initialized then
Set_Error_Status
(Status => Initialization_Error,
Diagnosis => Package_Name & "Associate: "
& "called for non-initialized ASIS");
raise ASIS_Failed;
end if;
if Is_Opened (Cont) then
Set_Error_Status
(Status => Value_Error,
Diagnosis => Package_Name & "Associate: "
& "the Context has already been opened");
raise ASIS_Inappropriate_Context;
end if;
if Cont = Non_Associated then
-- this is the first association for a given Context
Cont := Allocate_New_Context;
Set_Cont (The_Context, Cont);
else
Erase_Old (Cont);
end if;
Verify_Context_Name (To_String (Name), Cont);
Process_Context_Parameters (S_Parameters, Cont);
Set_Is_Associated (Cont, True);
Save_Context (Cont);
Set_Current_Cont (Nil_Context_Id);
exception
when ASIS_Inappropriate_Context =>
Set_Is_Associated (Cont, False);
raise;
when ASIS_Failed =>
Set_Is_Associated (Cont, False);
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information (Outer_Call => Package_Name & "Associate");
end if;
raise;
when Ex : others =>
Set_Is_Associated (Cont, False);
Report_ASIS_Bug
(Query_Name => Package_Name & "Associate",
Ex => Ex);
end Associate;
-----------
-- Close --
-----------
procedure Close (The_Context : in out Asis.Context) is
Cont : Context_Id;
begin
Cont := Get_Cont_Id (The_Context);
Reset_Context (Cont);
if not Is_Opened (Cont) then
Set_Error_Status (Status => Value_Error,
Diagnosis => Package_Name & "Close: " &
"the Context is not open");
raise ASIS_Inappropriate_Context;
end if;
if Debug_Flag_C or else
Debug_Lib_Model or else
Debug_Mode
then
Write_Str ("Closing Context ");
Write_Int (Int (Cont));
Write_Eol;
Print_Units (Cont);
Print_Trees (Cont);
end if;
Set_Is_Opened (Cont, False);
Set_Current_Cont (Nil_Context_Id);
Reset_Cache;
exception
when ASIS_Inappropriate_Context =>
raise;
when ASIS_Failed =>
Set_Current_Cont (Nil_Context_Id);
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information (Outer_Call => Package_Name & "Close");
end if;
raise;
when Ex : others =>
Set_Current_Cont (Nil_Context_Id);
Report_ASIS_Bug
(Query_Name => Package_Name & "Associate",
Ex => Ex);
end Close;
-----------------
-- Debug_Image --
-----------------
function Debug_Image
(The_Context : Asis.Context)
return Wide_String
is
Arg_Cont : Context_Id;
LT : Wide_String renames A4G.A_Types.Asis_Wide_Line_Terminator;
begin
Arg_Cont := Get_Cont_Id (The_Context);
Reset_Context (Arg_Cont);
return LT & "Context Debug_Image: " &
LT & "Context Id is" &
Context_Id'Wide_Image (Arg_Cont) &
LT & To_Wide_String (Debug_String (The_Context));
exception
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Debug_Image",
Ex => Ex);
end Debug_Image;
------------------
-- Default_Name --
------------------
function Default_Name return Wide_String is
begin
return Nil_Asis_Wide_String;
end Default_Name;
------------------------
-- Default_Parameters --
------------------------
function Default_Parameters return Wide_String is
begin
return Nil_Asis_Wide_String;
end Default_Parameters;
----------------
-- Dissociate --
----------------
procedure Dissociate (The_Context : in out Asis.Context) is
Cont : Context_Id;
begin
Cont := Get_Cont_Id (The_Context);
if Is_Opened (Cont) then
Set_Error_Status (Status => Value_Error,
Diagnosis => Package_Name & "Dissociate: "
& "the Context is open");
raise ASIS_Inappropriate_Context;
end if;
if Debug_Flag_C or else
Debug_Lib_Model or else
Debug_Mode
then
Write_Str ("Dissociating Context ");
Write_Int (Int (Cont));
Write_Eol;
Print_Context_Parameters (Cont);
end if;
if Is_Associated (Cont) then
Erase_Old (Cont);
Set_Is_Associated (Cont, False);
end if;
exception
when ASIS_Inappropriate_Context =>
raise;
when ASIS_Failed =>
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information (Outer_Call => Package_Name & "Dissociate");
end if;
raise;
when Ex : others =>
Report_ASIS_Bug
(Query_Name => Package_Name & "Dissociate",
Ex => Ex);
end Dissociate;
------------
-- Exists --
------------
function Exists (The_Context : Asis.Context) return Boolean is
Cont : Context_Id;
begin
Cont := Get_Cont_Id (The_Context);
return Is_Associated (Cont);
end Exists;
----------------------
-- Has_Associations --
----------------------
function Has_Associations
(The_Context : Asis.Context)
return Boolean
is
Cont : Context_Id;
begin
Cont := Get_Cont_Id (The_Context);
return Is_Associated (Cont);
end Has_Associations;
--------------
-- Is_Equal --
--------------
function Is_Equal
(Left : Asis.Context;
Right : Asis.Context)
return Boolean
is
begin
return Get_Cont_Id (Left) = Get_Cont_Id (Right);
-- Should be revised
end Is_Equal;
------------------
-- Is_Identical --
------------------
function Is_Identical
(Left : Asis.Context;
Right : Asis.Context)
return Boolean
is
begin
return Get_Cont_Id (Left) = Get_Cont_Id (Right);
end Is_Identical;
-------------
-- Is_Open --
-------------
function Is_Open (The_Context : Asis.Context) return Boolean is
Cont : Context_Id;
begin
Cont := Get_Cont_Id (The_Context);
return Is_Opened (Cont);
end Is_Open;
----------
-- Name --
----------
function Name (The_Context : Asis.Context) return Wide_String is
Cont : Context_Id;
begin
Cont := Get_Cont_Id (The_Context);
return To_Wide_String (Get_Context_Name (Cont));
end Name;
----------
-- Open --
----------
procedure Open (The_Context : in out Asis.Context) is
Cont : Context_Id;
Context_Tree_Mode : Tree_Mode;
begin
Cont := Get_Cont_Id (The_Context);
if not Is_Associated (Cont) then
Set_Error_Status (Status => Value_Error,
Diagnosis => Package_Name & "Open: " &
"the Context does not have association");
raise ASIS_Inappropriate_Context;
elsif Is_Opened (Cont) then
Set_Error_Status (Status => Value_Error,
Diagnosis => Package_Name & "Open: " &
"the Context has already been opened");
raise ASIS_Inappropriate_Context;
end if;
Reset_Context (Cont);
Context_Tree_Mode := Tree_Processing_Mode (Cont);
if Tree_Processing_Mode (Cont) = GNSA then
Set_Error_Status (Status => Use_Error,
Diagnosis => Package_Name & "Open: " &
"GNSA Context mode is not allowed");
raise ASIS_Inappropriate_Context;
end if;
Increase_ASIS_OS_Time;
Pre_Initialize (Cont);
A4G.Contt.Initialize (Cont);
-- Having these two Pre_Initialize and A4G.Contt.Initialize calling
-- one after another is a kind of junk, but there are some problems
-- with multi-context processing which have not been completely
-- detected and which does not allow to get rid of this definitely
-- redundunt "initialization"
case Context_Tree_Mode is
when Pre_Created | Mixed =>
Scan_Trees_New (Cont);
when Incremental =>
-- Not the best approach, unfortunately
begin
Scan_Trees_New (Cont);
exception
when Inconsistent_Incremental_Context =>
-- Setting empty incremental context:
Pre_Initialize (Cont);
A4G.Contt.Initialize (Cont);
end;
when others =>
null;
end case;
Set_Is_Opened (Cont, True);
Save_Context (Cont);
Set_Current_Cont (Nil_Context_Id);
exception
when Program_Error =>
raise;
when ASIS_Inappropriate_Context =>
raise;
when ASIS_Failed =>
Set_Is_Opened (Cont, False);
Set_Current_Cont (Nil_Context_Id);
if Status_Indicator = Unhandled_Exception_Error then
Add_Call_Information (Outer_Call => Package_Name & "Open");
end if;
raise;
when Ex : others =>
Set_Is_Opened (Cont, False);
Set_Current_Cont (Nil_Context_Id);
Report_ASIS_Bug
(Query_Name => Package_Name & "Open",
Ex => Ex);
end Open;
----------------
-- Parameters --
----------------
function Parameters (The_Context : Asis.Context) return Wide_String is
Cont : Context_Id;
begin
Cont := Get_Cont_Id (The_Context);
return To_Wide_String (Get_Context_Parameters (Cont));
end Parameters;
end Asis.Ada_Environments;
|