------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- E X P _ C H 3 -- -- -- -- S p e c -- -- -- -- -- -- Copyright (C) 1992-2001 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. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Expand routines for chapter 3 constructs with Types; use Types; with Elists; use Elists; package Exp_Ch3 is procedure Expand_N_Object_Declaration (N : Node_Id); procedure Expand_N_Subtype_Indication (N : Node_Id); procedure Expand_N_Variant_Part (N : Node_Id); procedure Expand_N_Full_Type_Declaration (N : Node_Id); procedure Expand_Previous_Access_Type (Def_Id : Entity_Id); -- For a full type declaration that contains tasks, or that is a task, -- check whether there exists an access type whose designated type is an -- incomplete declarations for the current composite type. If so, build -- the master for that access type, now that it is known to denote an -- object with tasks. procedure Expand_Derived_Record (T : Entity_Id; Def : Node_Id); -- Add a field _parent in the extension part of the record. procedure Build_Discr_Checking_Funcs (N : Node_Id); -- Builds function which checks whether the component name is consistent -- with the current discriminants. N is the full type declaration node, -- and the discriminant checking functions are inserted after this node. function Build_Initialization_Call (Loc : Source_Ptr; Id_Ref : Node_Id; Typ : Entity_Id; In_Init_Proc : Boolean := False; Enclos_Type : Entity_Id := Empty; Discr_Map : Elist_Id := New_Elmt_List) return List_Id; -- Builds a call to the initialization procedure of the Id entity. Id_Ref -- is either a new reference to Id (for record fields), or an indexed -- component (for array elements). Loc is the source location for the -- constructed tree, and Typ is the type of the entity (the initialization -- procedure of the base type is the procedure that actually gets called). -- In_Init_Proc has to be set to True when the call is itself in an Init -- procedure in order to enable the use of discriminals. Enclos_type is -- the type of the init_proc and it is used for various expansion cases -- including the case where Typ is a task type which is a array component, -- the indices of the enclosing type are used to build the string that -- identifies each task at runtime. -- -- Discr_Map is used to replace discriminants by their discriminals in -- expressions used to constrain record components. In the presence of -- entry families bounded by discriminants, protected type discriminants -- can appear within expressions in array bounds (not as stand-alone -- identifiers) and a general replacement is necessary. procedure Freeze_Type (N : Node_Id); -- This procedure executes the freezing actions associated with the given -- freeze type node N. function Needs_Simple_Initialization (T : Entity_Id) return Boolean; -- Certain types need initialization even though there is no specific -- initialization routine. In this category are access types (which -- need initializing to null), packed array types whose implementation -- is a modular type, and all scalar types if Normalize_Scalars is set, -- as well as private types whose underlying type is present and meets -- any of these criteria. Finally, descendants of String and Wide_String -- also need initialization in Initialize/Normalize_Scalars mode. function Get_Simple_Init_Val (T : Entity_Id; Loc : Source_Ptr) return Node_Id; -- For a type which Needs_Simple_Initialization (see above), prepares -- the tree for an expression representing the required initial value. -- Loc is the source location used in constructing this tree which is -- returned as the result of the call. end Exp_Ch3;