// $Id: narrow.cpp 89028 2010-02-16 14:23:21Z parsons $

/*

COPYRIGHT

Copyright 1992, 1993, 1994 Sun Microsystems, Inc.  Printed in the United
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This product is protected by copyright and distributed under the following
license restricting its use.

The Interface Definition Language Compiler Front End (CFE) is made
available for your use provided that you include this license and copyright
notice on all media and documentation and the software program in which
this product is incorporated in whole or part. You may copy and extend
functionality (but may not remove functionality) of the Interface
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distribution of Interface Definition Language CFE as permitted herein.

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with this license.  Upon termination, you shall destroy or return all code
and documentation for the Interface Definition Language CFE.

INTERFACE DEFINITION LANGUAGE CFE IS PROVIDED AS IS WITH NO WARRANTIES OF
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 */

#include "ast_module.h"
#include "ast_root.h"
#include "ast_valuetype.h"
#include "ast_eventtype.h"
#include "ast_component.h"
#include "ast_porttype.h"
#include "ast_connector.h"
#include "ast_home.h"
#include "ast_operation.h"
#include "ast_factory.h"
#include "ast_finder.h"
#include "ast_exception.h"
#include "ast_union.h"
#include "ast_enum.h"
#include "ast_interface_fwd.h"
#include "utl_scope.h"

// Narrowing functions for AST

TAO_IDL_FE_Export AST_Decl *
ScopeAsDecl (UTL_Scope *s)
{
  if (s == 0)
    {
      return 0;
    }

  switch (s->scope_node_type ())
  {
    case AST_Decl::NT_module:
      return AST_Module::narrow_from_scope (s);
    case AST_Decl::NT_root:
      return AST_Root::narrow_from_scope (s);
    case AST_Decl::NT_interface:
      return AST_Interface::narrow_from_scope (s);
    case AST_Decl::NT_valuetype:
      return AST_ValueType::narrow_from_scope (s);
    case AST_Decl::NT_eventtype:
      return AST_EventType::narrow_from_scope (s);
    case AST_Decl::NT_component:
      return AST_Component::narrow_from_scope (s);
    case AST_Decl::NT_porttype:
      return AST_PortType::narrow_from_scope (s);
    case AST_Decl::NT_connector:
      return AST_Connector::narrow_from_scope (s);
    case AST_Decl::NT_home:
      return AST_Home::narrow_from_scope (s);
    case AST_Decl::NT_op:
      return AST_Operation::narrow_from_scope (s);
    case AST_Decl::NT_factory:
      return AST_Factory::narrow_from_scope (s);
    case AST_Decl::NT_finder:
      return AST_Finder::narrow_from_scope (s);
    case AST_Decl::NT_except:
      return AST_Exception::narrow_from_scope (s);
    case AST_Decl::NT_union:
      return AST_Union::narrow_from_scope (s);
    case AST_Decl::NT_struct:
      return AST_Structure::narrow_from_scope (s);
    case AST_Decl::NT_enum:
      return AST_Enum::narrow_from_scope (s);
    default:
      return 0;
  }
}

/*
 * Convert an AST_Decl to a UTL_Scope if possible
 */
TAO_IDL_FE_Export UTL_Scope *
DeclAsScope (AST_Decl *d)
{
  if (d == 0)
    {
      return 0;
    }

  switch (d->node_type ())
  {
    case AST_Decl::NT_interface_fwd:
      /*
       * Resolve forward declared interface by looking at full_definition()
       * field and iterating
       */
      d = (AST_InterfaceFwd::narrow_from_decl (d))->full_definition ();
      /*
       * Fall through
       */
    case AST_Decl::NT_interface:
      return AST_Interface::narrow_from_decl (d);
    case AST_Decl::NT_valuetype:
      return AST_ValueType::narrow_from_decl (d);
    case AST_Decl::NT_eventtype:
      return AST_EventType::narrow_from_decl (d);
    case AST_Decl::NT_component:
      return AST_Component::narrow_from_decl (d);
    case AST_Decl::NT_porttype:
      return AST_PortType::narrow_from_decl (d);
    case AST_Decl::NT_connector:
      return AST_Connector::narrow_from_decl (d);
    case AST_Decl::NT_home:
      return AST_Home::narrow_from_decl (d);
    case AST_Decl::NT_module:
      return AST_Module::narrow_from_decl (d);
    case AST_Decl::NT_root:
      return AST_Root::narrow_from_decl (d);
    case AST_Decl::NT_except:
      return AST_Exception::narrow_from_decl (d);
    case AST_Decl::NT_union:
      return AST_Union::narrow_from_decl (d);
    case AST_Decl::NT_struct:
      return AST_Structure::narrow_from_decl (d);
    case AST_Decl::NT_enum:
      return AST_Enum::narrow_from_decl (d);
    case AST_Decl::NT_op:
      return AST_Operation::narrow_from_decl (d);
    case AST_Decl::NT_factory:
      return AST_Factory::narrow_from_decl (d);
    case AST_Decl::NT_finder:
      return AST_Finder::narrow_from_decl (d);
    default:
      return 0;
  }
}
