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------------------------------------------------------------------------------
-- --
-- ASIS Tester And iNTerpreter (ASIStant) COMPONENTS --
-- --
-- A S I S T A N T . T A B L E --
-- --
-- S p e c --
-- --
-- Copyright (c) 1997-2005, Free Software Foundation, Inc. --
-- --
-- ASIStant 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. ASIStant is distributed in the hope that it will be useful, --
-- 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 GNAT; see file COPYING. If --
-- not, write to the Free Software Foundation, 59 Temple Place Suite 330, --
-- Boston, MA 02111-1307, USA. --
-- --
-- ASIStant is an evolution of ASIStint tool that was created by --
-- Vasiliy Fofanov as part of a collaboration between Software Engineering --
-- Laboratory of the Swiss Federal Institute of Technology in Lausanne, --
-- Switzerland, and the Scientific Research Computer Center of the Moscow --
-- University, Russia, supported by the Swiss National Science Foundation --
-- grant #7SUPJ048247, "Development of ASIS for GNAT with industry quality" --
-- --
-- ASIStant is distributed as a part of the ASIS implementation for GNAT --
-- (ASIS-for-GNAT) and is maintained by Ada Core Technologies Inc --
-- (http://www.gnat.com). --
------------------------------------------------------------------------------
with Asis;
with Asis.Text;
with Asis.Data_Decomposition;
with ASIStant.Common; use ASIStant.Common;
package ASIStant.Table is
------------------------------------------------------------------------------
-- This package provides handling of ASIStant language variable tables
------------------------------------------------------------------------------
package DDA renames Asis.Data_Decomposition;
subtype Var_Name is Name_String;
type Var_Type is
(
Par_Absent,
Par_ATime,
Par_Boolean,
Par_Context,
Par_CUnit,
Par_CUnitList,
Par_ElemList,
Par_Element,
Par_Integer,
Par_Line,
Par_Line_List,
Par_Relationship,
Par_String,
Par_Span,
Par_DDA_Array_Component,
Par_DDA_Array_Component_List,
Par_DDA_Record_Component,
Par_DDA_Record_Component_List,
Par_XXXXX -- for not implemented types
);
-- Type to represent variable types
type Query_Result (RType : Var_Type := Par_Absent) is
record
case RType is
when Par_Absent => null;
when Par_String => S : String_Ptr;
when Par_Boolean => B : Boolean;
when Par_CUnit => C : Asis.Compilation_Unit;
when Par_CUnitList => CL : CUnitList_Ptr;
when Par_Element => E : Asis.Element;
when Par_ElemList => EL : ElemList_Ptr;
when Par_Context | Par_Integer
=> I : Integer;
when Par_Line => L : Asis.Text.Line;
when Par_Line_List => LL : LineList_Ptr;
when Par_Relationship
=> R : Relship_Ptr;
when Par_Span => Sp : Asis.Text.Span;
when Par_DDA_Array_Component
=> AC : DDA.Array_Component;
when Par_DDA_Array_Component_List
=> ACL : DDA_ArrCList_Ptr;
when Par_DDA_Record_Component
=> RC : DDA.Record_Component;
when Par_DDA_Record_Component_List
=> RCL : DDA_RecCList_Ptr;
when others => null;
end case;
end record;
-- Universal ASIStant expression representation
type Var_Info is
record
Name : Var_Name;
VType : Var_Type;
IValue : Integer;
SValue : String_Ptr;
end record;
Var_Unknown : constant Var_Info :=
((1 .. MAX_ID_LENGTH => ' '), Par_Absent, 0, null);
type V_Table is array (Positive range <>) of Var_Info;
type V_TablePtr is access all V_Table;
type Var_Table is
record
Free : Positive;
Max : Positive;
Table : V_TablePtr;
end record;
CurTable : Var_Table :=
(1, MAX_VARIABLES, new V_Table (1 .. MAX_VARIABLES));
function Get_Var (T : Var_Table; N : Wide_String) return Var_Info;
-- Scans for the variable in table T. Returns Var_Unknown if fails.
function Get_Var_Value (VI : Var_Info) return Query_Result;
-- Returns variable value information
function Store_Var_Value (QR : Query_Result) return Var_Info;
-- Stores value information in variable
procedure Modify_Var (T : in out Var_Table; V : Var_Info);
-- Adds/changes variable
end ASIStant.Table;
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