1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
10 -- Copyright (C) 1992,1993,1994 Free Software Foundation, Inc. --
12 -- GNAT is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 2, or (at your option) any later ver- --
15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
18 -- for more details. You should have received a copy of the GNU General --
19 -- Public License distributed with GNAT; see file COPYING. If not, write --
20 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
21 -- MA 02111-1307, USA. --
23 -- GNAT was originally developed by the GNAT team at New York University. --
24 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
26 ------------------------------------------------------------------------------
28 with Types
; use Types
;
31 procedure Analyze_Package_Body
(N
: Node_Id
);
32 procedure Analyze_Package_Declaration
(N
: Node_Id
);
33 procedure Analyze_Package_Specification
(N
: Node_Id
);
34 procedure Analyze_Private_Type_Declaration
(N
: Node_Id
);
36 procedure End_Package_Scope
(P
: Entity_Id
);
37 -- Calls Uninstall_Declarations, and then pops the scope stack.
39 procedure Exchange_Declarations
(Id
: Entity_Id
);
40 -- Exchange private and full declaration on entry/exit from a package
41 -- declaration or body. The semantic links of the respective nodes
42 -- are preserved in the exchange.
44 procedure Install_Visible_Declarations
(P
: Entity_Id
);
45 procedure Install_Private_Declarations
(P
: Entity_Id
);
47 -- On entrance to a package body, make declarations in package spec
48 -- immediately visible.
50 -- When compiling the body of a package, both routines are called in
51 -- succession. When compiling the body of a child package, the call
52 -- to Install_Private_Declaration is immediate for private children,
53 -- but is deffered until the compilation of the private part of the
54 -- child for public child packages.
56 procedure Install_Package_Entity
(Id
: Entity_Id
);
57 -- Basic procedure for the previous two. Places one entity on its
58 -- visibility chain, and recurses on the visible part if the entity
59 -- is an inner package.
61 function Unit_Requires_Body
(P
: Entity_Id
) return Boolean;
62 -- Check if a unit requires a body. A specification requires a body
63 -- if it contains declarations that require completion in a body.
65 procedure May_Need_Implicit_Body
(E
: Entity_Id
);
66 -- If a package declaration contains tasks and does not require a
67 -- body, create an implicit body at the end of the current declarative
68 -- part to activate those tasks.
70 function Is_Fully_Visible
(Type_Id
: Entity_Id
) return Boolean;
71 -- Indicates whether the Full Declaration of a private type is visible.
73 procedure New_Private_Type
(N
: Node_Id
; Id
: Entity_Id
; Def
: Node_Id
);
74 -- Common processing for private type declarations and for formal
75 -- private type declarations. For private types, N and Def are the type
76 -- declaration node; for formal private types, Def is the formal type
79 procedure Uninstall_Declarations
(P
: Entity_Id
);
80 -- At the end of a package declaration or body, declarations in the
81 -- visible part are no longer immediately visible, and declarations in
82 -- the private part are not visible at all. For inner packages, place
83 -- visible entities at the end of their homonym chains. For compilation
84 -- units, make all entities invisible. In both cases, exchange private
85 -- and visible declarations to restore order of elaboration.