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Diffstat (limited to 'gcc/ada/exp_disp.ads')
| -rw-r--r-- | gcc/ada/exp_disp.ads | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/gcc/ada/exp_disp.ads b/gcc/ada/exp_disp.ads new file mode 100644 index 00000000000..f5ff995d61b --- /dev/null +++ b/gcc/ada/exp_disp.ads @@ -0,0 +1,96 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- E X P _ D I S P -- +-- -- +-- S p e c -- +-- -- +-- $Revision: 1.9 $ -- +-- -- +-- Copyright (C) 1992-1998 Free Software Foundation, Inc. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 2, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- +-- for more details. You should have received a copy of the GNU General -- +-- Public License distributed with GNAT; see file COPYING. If not, write -- +-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- +-- MA 02111-1307, USA. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- +-- -- +------------------------------------------------------------------------------ + +-- This package contains routines involved in tagged types and dynamic +-- dispatching expansion + +with Types; use Types; +package Exp_Disp is + + type DT_Access_Action is + (CW_Membership, + DT_Entry_Size, + DT_Prologue_Size, + Get_Expanded_Name, + Get_External_Tag, + Get_Prim_Op_Address, + Get_RC_Offset, + Get_Remotely_Callable, + Get_TSD, + Inherit_DT, + Inherit_TSD, + Register_Tag, + Set_Expanded_Name, + Set_External_Tag, + Set_Prim_Op_Address, + Set_RC_Offset, + Set_Remotely_Callable, + Set_TSD, + TSD_Entry_Size, + TSD_Prologue_Size); + + + function Fill_DT_Entry + (Loc : Source_Ptr; + Prim : Entity_Id) + return Node_Id; + -- Generate the code necessary to fill the appropriate entry of the + -- dispatch table of Prim's controlling type with Prim's address. + + function Make_DT_Access_Action + (Typ : Entity_Id; + Action : DT_Access_Action; + Args : List_Id) + return Node_Id; + -- Generate a call to one of the Dispatch Table Access Subprograms defined + -- in Ada.Tags or in Interfaces.Cpp + + function Make_DT (Typ : Entity_Id) return List_Id; + -- Expand the declarations for the Dispatch Table (or the Vtable in + -- the case of type whose ancestor is a CPP_Class) + + procedure Set_All_DT_Position (Typ : Entity_Id); + -- Set the DT_Position field for each primitive operation. In the CPP + -- Class case check that no pragma CPP_Virtual is missing and that the + -- DT_Position are coherent + + procedure Expand_Dispatch_Call (Call_Node : Node_Id); + -- Expand the call to the operation through the dispatch table and perform + -- the required tag checks when appropriate. For CPP types the call is + -- done through the Vtable (tag checks are not relevant) + + procedure Set_Default_Constructor (Typ : Entity_Id); + -- Typ is a CPP_Class type. Create the Init procedure of that type to + -- be the default constructor (i.e. the function returning this type, + -- having a pragma CPP_Constructor and no parameter) + + function Get_Remotely_Callable (Obj : Node_Id) return Node_Id; + -- Return an expression that holds True if the object can be transmitted + -- onto another partition according to E.4 (18) + +end Exp_Disp; |