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---------
-- Get --
---------
function Get (ID : Plugin_ID;
Params : not null access Plugin_Parameters;
Search_If_Missing : Boolean := False)
return Root_Plugin_Type'Class is
OK : Boolean;
Tag : Ada.Tags.Tag;
function New_Plugin is
new Ada.Tags.Generic_Dispatching_Constructor
(T => Root_Plugin_Type,
Parameters => Plugin_Parameters,
Constructor => Constructor);
begin
if not Plugin_Map.Contains (ID) then
if Search_If_Missing then
Find_Plugin (ID => ID,
Success => OK);
else
OK := False;
end if;
if not OK then
raise Unknown_Plugin_ID;
end if;
if not Plugin_Map.Contains (ID) then
raise Program_Error;
end if;
end if;
Tag := Plugin_Map.Element (ID);
return New_Plugin (Tag, Params);
end Get;
function Exists (ID : Plugin_ID;
Search_If_Missing : Boolean := False)
return Boolean
is
OK : Boolean;
begin
if Plugin_Map.Contains (ID) then
return True;
elsif Search_If_Missing then
Find_Plugin (ID => ID,
Success => OK);
return OK;
else
return False;
end if;
end Exists;
procedure For_All_Plugins
(Callback : not null access procedure (ID : Plugin_ID))
is
begin
for I in Plugin_Map.Iterate loop
Callback (Plugin_Maps.Key (I));
end loop;
end For_All_Plugins;
subtype Valid_Finder_ID is Finder_ID range 1 .. Finder_ID'Last;
package Finder_Vectors is
new Ada.Containers.Vectors (Index_Type => Valid_Finder_ID,
Element_Type => Finder_Access);
protected Finder_Table is
procedure Add (Finder : in Finder_Access;
ID : out Finder_ID);
procedure Remove (ID : Finder_ID);
procedure Find (ID : in Plugin_ID;
Success : out Boolean);
private
Finder_Array : Finder_Vectors.Vector;
end Finder_Table;
protected body Finder_Table is
procedure Add (Finder : in Finder_Access;
ID : out Finder_ID)
is
begin
Finder_Array.Append (Finder);
ID := Finder_Array.Last_Index;
end Add;
procedure Remove (ID : Finder_ID) is
begin
if ID > Finder_Array.Last_Index then
raise Constraint_Error;
else
declare