------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- E X P _ S E L -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2005, 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, 51 Franklin Street, Fifth Floor, -- -- Boston, MA 02110-1301, USA. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Routines used in Chapter 9 for the expansion of dispatching triggers in -- select statements (Ada 2005: AI-345) with Types; use Types; package Exp_Sel is function Build_Abort_Block (Loc : Source_Ptr; Abr_Blk_Ent : Entity_Id; Cln_Blk_Ent : Entity_Id; Blk : Node_Id) return Node_Id; -- Generate: -- begin -- Blk -- exception -- when Abort_Signal => Abort_Undefer; -- end; -- Abr_Blk_Ent is the name of the generated block, Cln_Blk_Ent is the name -- of the encapsulated cleanup block, Blk is the actual block name. function Build_B (Loc : Source_Ptr; Decls : List_Id) return Entity_Id; -- Generate: -- B : Boolean := False; -- Append the object declaration to the list and return its defining -- identifier. function Build_C (Loc : Source_Ptr; Decls : List_Id) return Entity_Id; -- Generate: -- C : Ada.Tags.Prim_Op_Kind; -- Append the object declaration to the list and return its defining -- identifier. function Build_Cleanup_Block (Loc : Source_Ptr; Blk_Ent : Entity_Id; Stmts : List_Id; Clean_Ent : Entity_Id) return Node_Id; -- Generate: -- declare -- procedure _clean is -- begin -- ... -- end _clean; -- begin -- Stmts -- at end -- _clean; -- end; -- Blk_Ent is the name of the generated block, Stmts is the list of -- encapsulated statements and Clean_Ent is the parameter to the -- _clean procedure. function Build_K (Loc : Source_Ptr; Decls : List_Id; Obj : Entity_Id) return Entity_Id; -- Generate -- K : Ada.Tags.Tagged_Kind := -- Ada.Tags.Get_Tagged_Kind (Ada.Tags.Tag (Obj)); -- where Obj is the pointer to a secondary table. Append the object -- declaration to the list and return its defining identifier. function Build_S (Loc : Source_Ptr; Decls : List_Id) return Entity_Id; -- Generate: -- S : Integer; -- Append the object declaration to the list and return its defining -- identifier. function Build_S_Assignment (Loc : Source_Ptr; S : Entity_Id; Obj : Entity_Id; Call_Ent : Entity_Id) return Node_Id; -- Generate: -- S := Ada.Tags.Get_Offset_Index ( -- Ada.Tags.Tag (Obj), DT_Position (Call_Ent)); -- where Obj is the pointer to a secondary table, Call_Ent is the entity -- of the dispatching call name. Return the generated assignment. end Exp_Sel;