-- --
-- S p e c --
-- --
--- Copyright (C) 1992-2007, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2011, 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- --
procedure Expand_Record_Extension (T : Entity_Id; Def : Node_Id);
-- Add a field _parent in the extension part of the record
- procedure Build_Class_Wide_Master (T : Entity_Id);
- -- For access to class-wide limited types we must build a task master
- -- because some subsequent extension may add a task component. To avoid
- -- bringing in the tasking run-time whenever an access-to-class-wide
- -- limited type is used, we use the soft-link mechanism and add a level of
- -- indirection to calls to routines that manipulate Master_Ids. This must
- -- also be used for anonymous access types whose designated type is a task
- -- or synchronized interface.
-
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,
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;
+ With_Default_Init : Boolean := False;
+ Constructor_Ref : Node_Id := Empty) return List_Id;
-- Builds a call to the initialization procedure for the base type of Typ,
-- passing it the object denoted by Id_Ref, plus additional parameters as
-- appropriate for the type (the _Master, for task types, for example).
-- enable the use of discriminals. Enclos_Type is the enclosing type when
-- initializing a component in an outer init proc, and it is used for
-- various expansion cases including the case where Typ is a task type
- -- which is an array component, the indices of the enclosing type are
+ -- which is an array component, the indexes 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
-- Ada 2005 (AI-287): With_Default_Init is used to indicate that the
-- initialization call corresponds to a default initialized component
-- of an aggregate.
-
- procedure Build_Master_Renaming (N : Node_Id; T : Entity_Id);
- -- If the designated type of an access type is a task type or contains
- -- tasks, we make sure that a _Master variable is declared in the current
- -- scope, and then declare a renaming for it:
- --
- -- atypeM : Master_Id renames _Master;
--
- -- where atyp is the name of the access type. This declaration is
- -- used when an allocator for the access type is expanded. The node N
- -- is the full declaration of the designated type that contains tasks.
- -- The renaming declaration is inserted before N, and after the Master
- -- declaration.
+ -- Constructor_Ref is a call to a constructor subprogram. It is currently
+ -- used only to support C++ constructors.
function Freeze_Type (N : Node_Id) return Boolean;
-- This function executes the freezing actions associated with the given
-- then tags components located at variable positions of Target are
-- initialized.
- function Needs_Simple_Initialization (T : Entity_Id) return Boolean;
+ function Needs_Simple_Initialization
+ (T : Entity_Id;
+ Consider_IS : Boolean := True) 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.
+ -- initialization routine:
+ -- Access types (which need initializing to null)
+ -- All scalar types if Normalize_Scalars mode set
+ -- Descendents of standard string types if Normalize_Scalars mode set
+ -- Scalar types having a Default_Value attribute
+ -- Regarding Initialize_Scalars mode, this is ignored if Consider_IS is
+ -- set to False, but if Consider_IS is set to True, then the cases above
+ -- mentioning Normalize_Scalars also apply for Initialize_Scalars mode.
function Get_Simple_Init_Val
(T : Entity_Id;
- Loc : Source_Ptr;
+ N : Node_Id;
Size : Uint := No_Uint) 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. The Size parameter indicates the target size of
- -- the object if it is known (indicated by a value that is not No_Uint and
- -- is greater than zero). If Size is not given (Size set to No_Uint, or
- -- non-positive), then the Esize of T is used as an estimate of the Size.
- -- The object size is needed to prepare a known invalid value for use by
- -- Normalize_Scalars.
+ -- tree for an expression representing the required initial value. N is a
+ -- node whose source location used in constructing this tree which is
+ -- returned as the result of the call. The Size parameter indicates the
+ -- target size of the object if it is known (indicated by a value that is
+ -- not No_Uint and is greater than zero). If Size is not given (Size set to
+ -- No_Uint, or non-positive), then the Esize of T is used as an estimate of
+ -- the Size. The object size is needed to prepare a known invalid value for
+ -- use by Normalize_Scalars. A call to this routine where T is a scalar
+ -- type is only valid if we are in Normalize_Scalars or Initialize_Scalars
+ -- mode, or if N is the node for a 'Invalid_Value attribute node.
end Exp_Ch3;
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