------------------------------------------------------------------------------ -- -- -- Matreshka Project -- -- -- -- Web Framework -- -- -- -- Tools Component -- -- -- ------------------------------------------------------------------------------ -- -- -- Copyright © 2015, Vadim Godunko -- -- 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 the Vadim Godunko, IE 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. -- -- -- ------------------------------------------------------------------------------ -- $Revision: 5498 $ $Date: 2015-10-20 18:17:05 +0300 (Вт, 20 окт 2015) $ ------------------------------------------------------------------------------ with Ada.Wide_Text_IO; with Asis.Elements; package body Engines.Generic_Engines is --------- -- "=" -- --------- overriding function "=" (Left, Right : Property_Key) return Boolean is begin return Asis.Elements.Is_Identical (Left.Element, Right.Element) and then Left.Name = Right.Name; end "="; ------------------ -- Get_Property -- ------------------ function Get_Property (Self : access Engine; Element : Asis.Element; Name : Propert_Name) return Property_Type is Key : constant Property_Key := (Element, Name); Pos : constant Property_Maps.Cursor := Self.Property_Cache.Find (Key); Value : Property_Type; Action : Action_Callback; begin if Property_Maps.Has_Element (Pos) then Value := Property_Maps.Element (Pos); else declare Kind : constant Asis.Extensions.Flat_Kinds.Flat_Element_Kinds := Asis.Extensions.Flat_Kinds.Flat_Element_Kind (Element); begin Action := Self.Actions.Element ((Kind, Name)); exception when Constraint_Error => Ada.Wide_Text_IO.Put (Asis.Extensions.Flat_Kinds.Flat_Element_Kinds'Wide_Image (Kind)); Ada.Wide_Text_IO.Put (" "); Ada.Wide_Text_IO.Put_Line (Propert_Name'Wide_Image (Name)); Ada.Wide_Text_IO.Put_Line (Asis.Elements.Debug_Image (Element)); raise; end; Value := Action (Self.Context, Element, Name); Self.Property_Cache.Insert (Key, Value); end if; return Value; end Get_Property; ------------------ -- Get_Property -- ------------------ function Get_Property (Self : access Engine; List : Asis.Element_List; Name : Propert_Name; Empty : Property_Type; Sum : access function (Left, Right : Property_Type) return Property_Type) return Property_Type is Result : Property_Type := Empty; begin for J in List'Range loop declare Next : constant Property_Type := Self.Get_Property (List (J), Name); begin Result := Sum (Result, Next); end; end loop; return Result; end Get_Property; ---------- -- Hash -- ---------- function Hash (Value : Property_Key) return Ada.Containers.Hash_Type is use type Ada.Containers.Hash_Type; Element_Hash : constant Asis.ASIS_Integer := Asis.Elements.Hash (Value.Element); Name_Hash : constant Ada.Containers.Hash_Type := Propert_Name'Pos (Value.Name); begin return Name_Hash + Ada.Containers.Hash_Type (abs Element_Hash); end Hash; ---------- -- Hash -- ---------- function Hash (Value : Action_Key) return Ada.Containers.Hash_Type is use type Ada.Containers.Hash_Type; Kind_Hash : constant Ada.Containers.Hash_Type := Asis.Extensions.Flat_Kinds.Flat_Element_Kinds'Pos (Value.Kind); Name_Hash : constant Ada.Containers.Hash_Type := Propert_Name'Pos (Value.Name); begin return Name_Hash + Kind_Hash; end Hash; ------------------------- -- Register_Calculator -- ------------------------- procedure Register_Calculator (Self : in out Engine; Kind : Asis.Extensions.Flat_Kinds.Flat_Element_Kinds; Name : Propert_Name; Action : access function (Engine : access Abstract_Context; Element : Asis.Element; Name : Propert_Name) return Property_Type) is begin Self.Actions.Insert ((Kind, Name), Action); end Register_Calculator; end Engines.Generic_Engines;