------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S E M _ C H 7 -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2019, 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; Do_Abstract_States : 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. When flag Do_Abstract_States is set to True, -- non-null abstract states are considered in determining the need for a -- body. 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;