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152 | -- -*- coding: utf-8 -*-
--
-- ZanyBlue, an Ada library and framework for finite element analysis.
--
-- Copyright (c) 2012, 2016, Michael Rohan <mrohan@zanyblue.com>
-- All rights reserved.
--
-- Redistribution and use in source and binary forms, with or without
-- modification, are permitted provided that the following conditions
-- are met:
--
-- * Redistributions of source code must retain the above copyright
-- notice, this list of conditions and the following disclaimer.
--
-- * Redistributions in binary form must reproduce the above copyright
-- notice, this list of conditions and the following disclaimer in the
-- documentation and/or other materials provided with the distribution.
--
-- * Neither the name of ZanyBlue nor the names of its contributors may
-- be used to endorse or promote products derived from this software
-- without specific prior written permission.
--
-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-- HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
-- TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--
with Ada.Calendar;
with UXStrings.Text_IO;
package ZanyBlue.Parameters.Values is
use Ada.Calendar;
type Value_Type is abstract tagged private;
function To_Boolean
(Value : Value_Type;
Name : String)
return Boolean;
-- Return the value of a parameter as a boolean. The exception
-- Not_A_Boolean_Error can be raised.
function To_Float
(Value : Value_Type;
Name : String)
return Float;
-- Return the value of a floating point parameter. The exception
-- Not_A_Real_Error can be raised.
function To_Integer
(Value : Value_Type;
Name : String)
return Integer;
-- Return the value of an integer parameter. The exception
-- Not_An_Integer_Error can be raised.
function To_List
(Value : Value_Type;
Name : String)
return List_Type is abstract;
-- Return the value of a list parameter. This will return the value
-- converted to a list for if necessary.
function To_String
(Value : Value_Type;
Name : String)
return String is abstract;
-- Return the value of a parameter as a string. This can be used
-- for any parameter type.
function To_Time
(Value : Value_Type;
Name : String)
return Time;
-- Return the value of an time parameter. The exception
-- Not_A_Time_Error can be raised.
function Type_Name
(Value : Value_Type;
Name : String)
return String is abstract;
-- Return the type name for a parameter ("float", "integer", "string" or
-- "time").
procedure Increment
(Value : in out Value_Type;
Name : String;
By_Amount : Integer);
-- Increment a parameter value by the given amount. The exception
-- Not_An_Integer_Error can be raised.
procedure Dump
(Value : Value_Type'Class;
Name : String;
Destination : UXStrings.Text_IO.File_Type;
Level : Natural := 0);
-- Write a parameter value definition as an XML definition to the given
-- file.
-- procedure Dump
-- (Value : Value_Type'Class;
-- Name : String;
-- Destination : Ada.Wide_Text_IO.File_Type;
-- Level : Natural := 0);
-- Write a parameter value definition as an XML definition to the given
-- file.
function To_Boolean_Value
(Data : Boolean)
return Value_Type'Class;
-- Convert a Boolean to a Value_Type (boxing)
function To_Integer_Value
(Data : Integer)
return Value_Type'Class;
-- Convert an integer to a Value_Type (boxing)
function To_Float_Value
(Data : Float)
return Value_Type'Class;
-- Convert a floating point to a Value_Type (boxing)
function To_List_Value
(Data : List_Type)
return Value_Type'Class;
-- Convert a list value to a Value_Type (boxing)
function To_String_Value
(Data : String)
return Value_Type'Class;
-- Convert a string value to a Value_Type (boxing)
function To_Time_Value
(Data : Time)
return Value_Type'Class;
-- Convert a Time value to a Value_Type (boxing)
private
type Value_Type is abstract tagged null record;
-- Root type for the value class hierarchy, doesn't contain anything.
end ZanyBlue.Parameters.Values;
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