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Length: 13312 (0x3400)
Types: Ada Source
Notes: 03_class, FILE, R1k_Segment, e3_tag, package Values, seg_045bec
└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000
└─ ⟦cfc2e13cd⟧ »Space Info Vol 2«
└─⟦this⟧
------------------------------------------------------------------------
-- <UNIT> Values
------------------------------------------------------------------------
--
-- <DESCRIPTION> Allow dynamic creation of data type Natural, Boolean or string
--
-- !!!!Danger : Dynamic object must be initialized with New_Value
-- Dynamic object must be de-allocated after usage with Dispose
--
-- <AUTHOR> Barthe Raphael, Beck Didier, Kempe Laurent
-- <VERSION> 1.0
-- <DATE> 24-jan-95
-- <MODIFY> 24-jan-95
--
-- <PKG USED> Bounded_String,Text_io.
------------------------------------------------------------------------
with Bounded_String, Text_Io, Struct_Component, String_Table;
package Values is
subtype My_String is Bounded_String.Variable_String (128);
-- exception
No_Natural_Value : exception;
No_Boolean_Value : exception;
No_String_Value : exception;
type Kind_Of_Values is (Undef, Bool, Int, Enum,
Chaine, Ref2struct, Ref2att);
-- use of limited type in order to forbid the egal operation
-- we have to redefine a fonction to copy two elements
type Value (Kind : Kind_Of_Values := Undef) is
record
case Kind is
when Undef =>
null;
when Int =>
The_Natural : Natural;
when Bool =>
The_Boolean : Boolean;
when Chaine =>
The_String : My_String;
when Enum =>
Enum_String : My_String;
when Ref2struct =>
The_Refs : Struct_Component.Liste_Structure.Listiter;
when Ref2att =>
The_Refa : Struct_Component.Liste_Attribut.Listiter;
end case;
end record;
subtype My_List is String_Table.Int_List.List;
type Box is
record
The_Type : Kind_Of_Values := Undef;
Id : My_String;
Val : Value;
Acc : My_List := String_Table.Int_List.Create;
end record;
-- creation
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> New_Value
--
-- <DESCRIPTION> create an undefine value
--
-- <PARAMETERS> V (Value) : for creating an undefine object
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
procedure New_Value (V : out Value);
-- access
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Kind_Of
--
-- <DESCRIPTION> return the type of the value
--
-- <PARAMETERS> V (Value)
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
function Kind_Of (V : in Value) return Kind_Of_Values;
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Value_As
--
-- <DESCRIPTION> return the value of the data (for natural)
--
-- <PARAMETERS> V (Value)
--
-- <EXCEPTIONS> No_Natural_Value
--
--------------------------------------------------------------------------------
function Value_As (V : in Value) return Natural;
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Value_As
--
-- <DESCRIPTION> return the value of the data (for boolean)
--
-- <PARAMETERS> V (Value)
--
-- <EXCEPTIONS> No_Boolean_Value
--
--------------------------------------------------------------------------------
function Value_As (V : in Value) return Boolean;
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Value_As
--
-- <DESCRIPTION> return the value of the data (for string)
--
-- <PARAMETERS> V (Value)
--
-- <EXCEPTIONS> No_String_Value
--
--------------------------------------------------------------------------------
function Value_As (V : in Value) return String;
function Value_As (V : in Value)
return Struct_Component.Liste_Structure.Listiter;
function Value_As (V : in Value)
return Struct_Component.Liste_Attribut.Listiter;
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Equal
--
-- <DESCRIPTION> test between two values; return a boolean
--
-- <PARAMETERS> V1 (Value), V2 (Value) : make a comparaison between V1 and V2
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
function Equal (V1 : in Value; V2 : in Value) return Boolean;
---------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Image
--
-- <DESCRIPTION> Give the string of a value
--
-- <PARAMETERS> V (Value)
--
-- <EXCEPTIONS> No
function Image (V : in Value) return String;
procedure Image (L : in My_List);
procedure Image (B : in Box);
-- modification
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Undefine
--
-- <DESCRIPTION> deallocation and creation of a new undefine object
--
-- <PARAMETERS> V (Value)
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
procedure Undefine (V : in out Value);
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Set_To
--
-- <DESCRIPTION> initialize a value
--
-- <PARAMETERS> V (Value), B (Boolean) : change V in a natural I
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
procedure Set_To (V : in out Value; I : in Natural);
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Set_To
--
-- <DESCRIPTION> initialize a value
--
-- <PARAMETERS> V (Value), B (Boolean) : change V in a boolean B
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
procedure Set_To (V : in out Value; B : in Boolean);
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Set_To
--
-- <DESCRIPTION> initialize a value
--
-- <PARAMETERS> V (Value), S (String) : change V in a string S
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
procedure Set_To (V : in out Value; S : in String);
procedure Set_To (V : in out Value;
I : in Struct_Component.Liste_Structure.Listiter);
procedure Set_To (V : in out Value;
I : in Struct_Component.Liste_Attribut.Listiter);
procedure Set_Id (B : in out Box; S : in String);
procedure Set_Type (B : in out Box; E : in Kind_Of_Values);
procedure Set_Acc (B : in out Box; L : in My_List);
procedure Set_Val (B : in out Box; S : in String);
procedure Set_Val (B : in out Box; Bo : in Boolean);
procedure Set_Val (B : in out Box; I : in Natural);
procedure Set_Val (B : in out Box;
Its : in Struct_Component.Liste_Structure.Listiter);
procedure Set_Val (B : in out Box;
It : in Struct_Component.Liste_Attribut.Listiter);
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Copy
--
-- <DESCRIPTION> copy between two values; usefull because we haven't "=" !
--
-- <PARAMETERS> To_Value (Value), The_Value (Value) : copy The_Value in To_Value
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
-- procedure Copy (To_Value : in out Value; The_Value : in Value);
-- liberation
--------------------------------------------------------------------------------
-- <SUBPROGRAM>
-- <UNIT> Dispose
--
-- <DESCRIPTION> liberate the memory which was allocated
--
-- <PARAMETERS> V (Value)
--
-- <EXCEPTIONS> Nothing
--
--------------------------------------------------------------------------------
procedure Dispose (V : in out Value);
-- definition of the abstract data type
end Values;
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