1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2013, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING3. If not, go to --
19 -- http://www.gnu.org/licenses for a complete copy of the license. --
21 -- GNAT was originally developed by the GNAT team at New York University. --
22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
24 ------------------------------------------------------------------------------
26 with Types
; use Types
;
30 procedure Analyze_Package_Body
(N
: Node_Id
);
31 procedure Analyze_Package_Declaration
(N
: Node_Id
);
32 procedure Analyze_Package_Specification
(N
: Node_Id
);
33 procedure Analyze_Private_Type_Declaration
(N
: Node_Id
);
35 procedure End_Package_Scope
(P
: Entity_Id
);
36 -- Calls Uninstall_Declarations, and then pops the scope stack
38 procedure Exchange_Declarations
(Id
: Entity_Id
);
39 -- Exchange private and full declaration on entry/exit from a package
40 -- declaration or body. The semantic links of the respective nodes
41 -- are preserved in the exchange.
43 procedure Install_Visible_Declarations
(P
: Entity_Id
);
44 procedure Install_Private_Declarations
(P
: Entity_Id
);
46 -- On entrance to a package body, make declarations in package spec
47 -- immediately visible.
49 -- When compiling the body of a package, both routines are called in
50 -- succession. When compiling the body of a child package, the call
51 -- to Install_Private_Declaration is immediate for private children,
52 -- but is deferred until the compilation of the private part of the
53 -- child for public child packages.
55 function Unit_Requires_Body
57 Ignore_Abstract_State
: Boolean := False) return Boolean;
58 -- Check if a unit requires a body. A specification requires a body if it
59 -- contains declarations that require completion in a body. If the flag
60 -- Ignore_Abstract_State is set True, then the test for a non-null abstract
61 -- state (which normally requires a body) is not carried out. This allows
62 -- the use of this routine to tell if there is some other reason that a
63 -- body is required (as is required for analyzing Abstract_State). This
64 -- is not currently used, but may be useful in future if we implement a
65 -- compatibility mode which warns about possible incompatibilities if a
66 -- SPARK 2014 program is compiled with a SPARK-unaware compiler.
68 procedure May_Need_Implicit_Body
(E
: Entity_Id
);
69 -- If a package declaration contains tasks or RACWs and does not require
70 -- a body, create an implicit body at the end of the current declarative
71 -- part to activate those tasks or contain the bodies for the RACW
74 procedure New_Private_Type
(N
: Node_Id
; Id
: Entity_Id
; Def
: Node_Id
);
75 -- Common processing for private type declarations and for formal
76 -- private type declarations. For private types, N and Def are the type
77 -- declaration node; for formal private types, Def is the formal type
80 procedure Uninstall_Declarations
(P
: Entity_Id
);
81 -- At the end of a package declaration or body, declarations in the
82 -- visible part are no longer immediately visible, and declarations in
83 -- the private part are not visible at all. For inner packages, place
84 -- visible entities at the end of their homonym chains. For compilation
85 -- units, make all entities invisible. In both cases, exchange private
86 -- and visible declarations to restore order of elaboration.