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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S E M _ C H 7 --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2015, 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 3, 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 COPYING3. If not, go to --
-- http://www.gnu.org/licenses for a complete copy of the license. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Types; use Types;
package Sem_Ch7 is
procedure Analyze_Package_Body (N : Node_Id);
procedure Analyze_Package_Declaration (N : Node_Id);
procedure Analyze_Package_Specification (N : Node_Id);
procedure Analyze_Private_Type_Declaration (N : Node_Id);
procedure End_Package_Scope (P : Entity_Id);
-- Calls Uninstall_Declarations, and then pops the scope stack
procedure Exchange_Declarations (Id : Entity_Id);
-- Exchange private and full declaration on entry/exit from a package
-- declaration or body. The semantic links of the respective nodes
-- are preserved in the exchange.
procedure Install_Visible_Declarations (P : Entity_Id);
procedure Install_Private_Declarations (P : Entity_Id);
-- On entrance to a package body, make declarations in package spec
-- immediately visible.
--
-- When compiling the body of a package, both routines are called in
-- succession. When compiling the body of a child package, the call
-- to Install_Private_Declaration is immediate for private children,
-- but is deferred until the compilation of the private part of the
-- child for public child packages.
function Unit_Requires_Body
(Pack_Id : Entity_Id;
Ignore_Abstract_State : Boolean := False) return Boolean;
-- Determine whether package Pack_Id requires a body. A specification needs
-- a body if it contains declarations that require completion in the body.
-- A non-Ghost [generic] package does not require a body when it declares
-- Ghost entities exclusively. If flag Ignore_Abstract_State is True, then
-- the test for a non-null abstract state (which normally requires a body)
-- is not carried out. The flag is not currently used, but may be useful
-- in the future if we implement a compatibility mode which warns about
-- possible incompatibilities if a SPARK 2014 program is compiled with a
-- SPARK-unaware compiler.
procedure May_Need_Implicit_Body (E : Entity_Id);
-- If a package declaration contains tasks or RACWs and does not require
-- a body, create an implicit body at the end of the current declarative
-- part to activate those tasks or contain the bodies for the RACW
-- calling stubs.
procedure New_Private_Type (N : Node_Id; Id : Entity_Id; Def : Node_Id);
-- Common processing for private type declarations and for formal private
-- type declarations. For private types, N and Def are the type declaration
-- node; for formal private types, Def is the formal type definition.
procedure Uninstall_Declarations (P : Entity_Id);
-- At the end of a package declaration or body, declarations in the visible
-- part are no longer immediately visible, and declarations in the private
-- part are not visible at all. For inner packages, place visible entities
-- at the end of their homonym chains. For compilation units, make
-- all entities invisible. In both cases, exchange private and visible
-- declarations to restore order of elaboration.
end Sem_Ch7;
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