File : bc-containers.adb
-- Copyright (C) 1994-1999 Grady Booch, David Weller, Steve Doiel
-- and Simon Wright.
-- All Rights Reserved.
--
-- This program is free software; you can redistribute it
-- and/or modify it under the terms of the Ada Community
-- License which comes with this Library.
--
-- This program 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 Ada Community License for more details.
-- You should have received a copy of the Ada Community
-- License with this library, in the file named "Ada Community
-- License" or "ACL". If not, contact the author of this library
-- for a copy.
--
-- $Id: bc-containers.adb,v 1.6.2.2 1999/12/03 20:33:18 simon Exp $
package body BC.Containers is
function Cardinality (C : Container) return Natural is
begin
raise Should_Have_Been_Overridden;
return 0;
end Cardinality;
procedure Purge (C : in out Container) is
begin
raise Should_Have_Been_Overridden;
end Purge;
function Item_At (C : Container; Index : Positive) return Item_Ptr is
begin
raise Should_Have_Been_Overridden;
return null;
end Item_At;
procedure Reset (It : in out Iterator) is
begin
Reset (SP.Value (SP.Pointer (It)).all);
end Reset;
procedure Next (It : in out Iterator) is
begin
Next (SP.Value (SP.Pointer (It)).all);
end Next;
function Is_Done (It : Iterator) return Boolean is
begin
return Is_Done (SP.Value (SP.Pointer (It)).all);
end Is_Done;
function Current_Item (It : Iterator) return Item is
begin
return Current_Item (SP.Value (SP.Pointer (It)).all);
end Current_Item;
procedure Access_Current_Item is
begin
Apply (Current_Item (SP.Value (SP.Pointer (In_The_Iterator)).all).all);
end Access_Current_Item;
procedure Delete_Item_At (It : Iterator) is
begin
Delete_Item_At (SP.Value (SP.Pointer (It)).all);
end Delete_Item_At;
procedure Visit (Using : in out Iterator) is
Success : Boolean;
begin
Reset (Using);
while not Is_Done (Using) loop
Apply (Current_Item (Using), Success);
exit when not Success;
Next (Using);
end loop;
end Visit;
procedure Visit_With_In_Param (Using : in out Iterator;
Param : Param_Type) is
Success : Boolean;
begin
Reset (Using);
while not Is_Done (Using) loop
Apply (Current_Item (Using), Param, Success);
exit when not Success;
Next (Using);
end loop;
end Visit_With_In_Param;
procedure Visit_With_In_Out_Param (Using : in out Iterator;
Param : in out Param_Type) is
Success : Boolean;
begin
Reset (Using);
while not Is_Done (Using) loop
Apply (Current_Item (Using), Param, Success);
exit when not Success;
Next (Using);
end loop;
end Visit_With_In_Out_Param;
procedure Modify (Using : in out Iterator) is
Success : Boolean;
procedure Caller (I : in out Item) is
begin
Apply (I, Success);
end Caller;
procedure Call_Apply is new Access_Current_Item (Caller, Using);
begin
Reset (Using);
while not Is_Done (Using) loop
Call_Apply;
exit when not Success;
Next (Using);
end loop;
end Modify;
procedure Modify_With_In_Param (Using : in out Iterator;
Param : in Param_Type ) is
Success : Boolean;
procedure Caller (I : in out Item) is
begin
Apply (I, Param, Success);
end Caller;
procedure Call_Apply is new Access_Current_Item (Caller, Using);
begin
Reset (Using);
while not Is_Done (Using) loop
Call_Apply;
exit when not Success;
Next (Using);
end loop;
end Modify_With_In_Param;
procedure Modify_With_In_Out_Param (Using : in out Iterator;
Param : in out Param_Type) is
Success : Boolean;
procedure Caller (I : in out Item) is
begin
Apply (I, Param, Success);
end Caller;
procedure Call_Apply is new Access_Current_Item (Caller, Using);
begin
Reset (Using);
while not Is_Done (Using) loop
Call_Apply;
exit when not Success;
Next (Using);
end loop;
end Modify_With_In_Out_Param;
end BC.Containers;