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-rw-r--r--src/dyn_interning.ads63
1 files changed, 30 insertions, 33 deletions
diff --git a/src/dyn_interning.ads b/src/dyn_interning.ads
index abe32a27b..3940029f3 100644
--- a/src/dyn_interning.ads
+++ b/src/dyn_interning.ads
@@ -16,9 +16,8 @@
-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-- 02111-1307, USA.
-with Types; use Types;
with Hash; use Hash;
-with Dyn_Tables;
+with Dyn_Maps;
-- This generic package provides a factory to build unique objects.
-- Get will return an existing object or create a new one.
@@ -40,16 +39,33 @@ generic
with function Equal (Obj : Object_Type; Params : Params_Type)
return Boolean;
package Dyn_Interning is
- type Instance is limited private;
+ type No_Value_Type is null record;
+ function Build_No_Value (Obj : Object_Type) return No_Value_Type;
+
+ package Map is new Dyn_Maps
+ (Params_Type => Params_Type,
+ Object_Type => Object_Type,
+ Value_Type => No_Value_Type,
+ Hash => Hash,
+ Build => Build,
+ Build_Value => Build_No_Value,
+ Equal => Equal);
+
+ subtype Instance is Map.Instance;
-- Initialize. Required before any other operation.
- procedure Init (Inst : out Instance);
+ procedure Init (Inst : out Instance) renames Map.Init;
+
+ procedure Free (Inst : in out Instance) renames Map.Free;
- procedure Free (Inst : in out Instance);
+ -- Export Index_Type...
+ subtype Index_Type is Map.Index_Type;
+ function "+" (L, R : Index_Type) return Index_Type renames Map."+";
+ function ">" (L, R : Index_Type) return Boolean renames Map.">";
+ function "<=" (L, R : Index_Type) return Boolean renames Map."<=";
- type Index_Type is new Uns32;
- No_Index : constant Index_Type := 0;
- First_Index : constant Index_Type := 1;
+ No_Index : constant Index_Type := Map.No_Index;
+ First_Index : constant Index_Type := Map.First_Index;
-- If there is already an existing object for PARAMS, return it.
-- Otherwise create it.
@@ -58,35 +74,16 @@ package Dyn_Interning is
-- Likewise, but return its index.
procedure Get_Index
- (Inst : in out Instance; Params : Params_Type; Idx : out Index_Type);
+ (Inst : in out Instance; Params : Params_Type; Idx : out Index_Type)
+ renames Map.Get_Index;
-- Get the number of elements in the table.
- function Last_Index (Inst : Instance) return Index_Type;
+ function Last_Index (Inst : Instance) return Index_Type
+ renames Map.Last_Index;
-- Get an element by index. The index has no real meaning, but the
-- current implementation allocates index incrementally.
function Get_By_Index (Inst : Instance; Index : Index_Type)
- return Object_Type;
-private
- type Element_Wrapper is record
- Hash : Hash_Value_Type;
- Next : Index_Type := No_Index;
- Obj : Object_Type;
- end record;
-
- package Wrapper_Tables is new Dyn_Tables
- (Table_Index_Type => Index_Type,
- Table_Component_Type => Element_Wrapper,
- Table_Low_Bound => No_Index + 1);
-
- type Hash_Array is array (Hash_Value_Type range <>) of Index_Type;
- type Hash_Array_Acc is access Hash_Array;
-
- Initial_Size : constant Hash_Value_Type := 1024;
-
- type Instance is record
- Els : Wrapper_Tables.Instance;
- Size : Hash_Value_Type;
- Hash_Table : Hash_Array_Acc;
- end record;
+ return Object_Type
+ renames Map.Get_By_Index;
end Dyn_Interning;