| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- E X P _ C H 3 -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1992-2003 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; |
| With_Default_Init : Boolean := False) |
| 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 |
| -- proc 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. |
| -- |
| -- Ada0Y (AI-287): With_Default_Init is used to indicate that the initia- |
| -- lization call corresponds to a default initialized component of an |
| -- aggregate. |
| |
| 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; |
