------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S E M _ C H 7 -- -- -- -- S p e c -- -- -- -- $Revision: 1.19 $ -- -- -- -- Copyright (C) 1992,1993,1994 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. -- -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- -- -- ------------------------------------------------------------------------------ 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 deffered until the compilation of the private part of the -- child for public child packages. procedure Install_Package_Entity (Id : Entity_Id); -- Basic procedure for the previous two. Places one entity on its -- visibility chain, and recurses on the visible part if the entity -- is an inner package. function Unit_Requires_Body (P : Entity_Id) return Boolean; -- Check if a unit requires a body. A specification requires a body -- if it contains declarations that require completion in a body. procedure May_Need_Implicit_Body (E : Entity_Id); -- If a package declaration contains tasks and does not require a -- body, create an implicit body at the end of the current declarative -- part to activate those tasks. function Is_Fully_Visible (Type_Id : Entity_Id) return Boolean; -- Indicates whether the Full Declaration of a private type is visible. 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;