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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S E M _ C H 1 2 --
-- --
-- S p e c --
-- --
-- $Revision: 1.19 $
-- --
-- Copyright (C) 1992-2000 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 Inline; use Inline;
with Types; use Types;
package Sem_Ch12 is
procedure Analyze_Generic_Package_Declaration (N : Node_Id);
procedure Analyze_Generic_Subprogram_Declaration (N : Node_Id);
procedure Analyze_Package_Instantiation (N : Node_Id);
procedure Analyze_Procedure_Instantiation (N : Node_Id);
procedure Analyze_Function_Instantiation (N : Node_Id);
procedure Analyze_Formal_Object_Declaration (N : Node_Id);
procedure Analyze_Formal_Type_Declaration (N : Node_Id);
procedure Analyze_Formal_Subprogram (N : Node_Id);
procedure Analyze_Formal_Package (N : Node_Id);
procedure Start_Generic;
-- Must be invoked before starting to process a generic spec or body.
procedure End_Generic;
-- Must be invoked just at the end of the end of the processing of a
-- generic spec or body.
procedure Check_Generic_Child_Unit
(Gen_Id : Node_Id;
Parent_Installed : in out Boolean);
-- If the name of the generic unit in an instantiation or a renaming
-- is a selected component, then the prefix may be an instance and the
-- selector may designate a child unit. Retrieve the parent generic
-- and search for the child unit that must be declared within. Similarly,
-- if this is the name of a generic child unit within an instantiation of
-- its own parent, retrieve the parent generic.
function Copy_Generic_Node
(N : Node_Id;
Parent_Id : Node_Id;
Instantiating : Boolean)
return Node_Id;
-- Copy the tree for a generic unit or its body. The unit is copied
-- repeatedly: once to produce a copy on which semantic analysis of
-- the generic is performed, and once for each instantiation. The tree
-- being copied is not semantically analyzed, except that references to
-- global entities are marked on terminal nodes.
function Get_Instance_Of (A : Entity_Id) return Entity_Id;
-- Retrieve actual associated with given generic parameter.
-- If A is uninstantiated or not a generic parameter, return A.
procedure Instantiate_Package_Body
(Body_Info : Pending_Body_Info);
-- Called after semantic analysis, to complete the instantiation of
-- package instances.
procedure Instantiate_Subprogram_Body
(Body_Info : Pending_Body_Info);
-- Called after semantic analysis, to complete the instantiation of
-- function and procedure instances.
procedure Save_Global_References (N : Node_Id);
-- Traverse the original generic unit, and capture all references to
-- entities that are defined outside of the generic in the analyzed
-- tree for the template. These references are copied into the original
-- tree, so that they appear automatically in every instantiation.
-- A critical invariant in this approach is that if an id in the generic
-- resolves to a local entity, the corresponding id in the instance
-- will resolve to the homologous entity in the instance, even though
-- the enclosing context for resolution is different, as long as the
-- global references have been captured as described here.
-- Because instantiations can be nested, the environment of the instance,
-- involving the actuals and other data-structures, must be saved and
-- restored in stack-like fashion. Front-end inlining also uses these
-- structures for the management of private/full views.
procedure Set_Copied_Sloc (N : Node_Id; E : Entity_Id);
procedure Save_Env
(Gen_Unit : Entity_Id;
Act_Unit : Entity_Id);
procedure Restore_Env;
end Sem_Ch12;
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