/*

COPYRIGHT

Copyright 1992, 1993, 1994 Sun Microsystems, Inc.  Printed in the United
States of America.  All Rights Reserved.

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
Definition Language CFE without charge, but you are not authorized to
license or distribute it to anyone else except as part of a product or
program developed by you or with the express written consent of Sun
Microsystems, Inc. ("Sun").

The names of Sun Microsystems, Inc. and any of its subsidiaries or
affiliates may not be used in advertising or publicity pertaining to
distribution of Interface Definition Language CFE as permitted herein.

This license is effective until terminated by Sun for failure to comply
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
ANY KIND INCLUDING THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS
FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR ARISING FROM A COURSE OF
DEALING, USAGE OR TRADE PRACTICE.

INTERFACE DEFINITION LANGUAGE CFE IS PROVIDED WITH NO SUPPORT AND WITHOUT
ANY OBLIGATION ON THE PART OF Sun OR ANY OF ITS SUBSIDIARIES OR AFFILIATES
TO ASSIST IN ITS USE, CORRECTION, MODIFICATION OR ENHANCEMENT.

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INTERFACE DEFINITION LANGUAGE CFE OR ANY PART THEREOF.

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DAMAGES, EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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 */

/*
 * ast_exception.cc - Implementation of class AST_Exception
 *
 * AST_Exceptions denote IDL exception declarations
 * AST_Exceptions are a subclass of AST_Decl (they are not types!)
 * and of UTL_Scope
 */

#include	<idl.hh>
#include	<idl_extern.hh>

/*
 * Constructor(s) and destructor
 */
AST_Exception::AST_Exception()
{
}

AST_Exception::AST_Exception(UTL_ScopedName *n, UTL_StrList *p)
	     : AST_Structure(AST_Decl::NT_except, n, p)
{
}

/*
 * Private operations
 */

/*
 * Public operations
 */


/*
 * Redefinition of inherited virtual operations
 */

/*
 * Add this AST_Field node to the current scope
 */
AST_Field *AST_Exception::fe_add_field(AST_Field *t)
{
  AST_Decl *d;

  /*
   * Already defined and cannot be redefined? Or already used?
   */
  if ((d = lookup_for_add(t, I_FALSE, I_TRUE)) != NULL) {
    if (!can_be_redefined(d)) {
      idl_global->err()->error3(UTL_Error::EIDL_REDEF, t, this, d);
      return NULL;
    }
    if (referenced(d)) {
      idl_global->err()->error3(UTL_Error::EIDL_DEF_USE, t, this, d);
      return NULL;
    }
    if (t->has_ancestor(d)) {
      idl_global->err()->redefinition_in_scope(t, d);
      return NULL;
    }
  }
  /*
   * Add it to scope
   */
  add_to_scope(t);
  /*
   * Add it to set of locally referenced symbols
   */
  add_to_referenced(t, I_FALSE);

  return t;
}

/*
 * Add this AST_Union (manifest type declaration) to the current scope
 */
AST_Union *AST_Exception::fe_add_union(AST_Union *t)
{
  AST_Decl *d;

  /*
   * Already defined and cannot be redefined? Or already used?
   */
  if ((d = lookup_for_add(t, I_FALSE)) != NULL) {
    if (!can_be_redefined(d)) {
      idl_global->err()->error3(UTL_Error::EIDL_REDEF, t, this, d);
      return NULL;
    }
    if (referenced(d)) {
      idl_global->err()->error3(UTL_Error::EIDL_DEF_USE, t, this, d);
      return NULL;
    }
    if (t->has_ancestor(d)) {
      idl_global->err()->redefinition_in_scope(t, d);
      return NULL;
    }
  }
  /*
   * Add it to local types
   */
  add_to_local_types(t);
  /*
   * Add it to set of locally referenced symbols
   */
  add_to_referenced(t, I_FALSE);

  return t;
}

/*
 * Add this AST_Structure (manifest type declaration) to the current
 * scope
 */
AST_Structure *AST_Exception::fe_add_structure(AST_Structure *t)
{
  AST_Decl *d;

  /*
   * Already defined and cannot be redefined? Or already used?
   */
  if ((d = lookup_for_add(t, I_FALSE)) != NULL) {
    if (!can_be_redefined(d)) {
      idl_global->err()->error2(UTL_Error::EIDL_REDEF, t, this);
      return NULL;
    }
    if (referenced(d)) {
      idl_global->err()->error3(UTL_Error::EIDL_DEF_USE, t, this, d);
      return NULL;
    }
    if (t->has_ancestor(d)) {
      idl_global->err()->redefinition_in_scope(t, d);
      return NULL;
    }
  }
  /*
   * Add it to local types
   */
  add_to_local_types(t);
  /*
   * Add it to set of locally referenced symbols
   */
  add_to_referenced(t, I_FALSE);

  return t;
}

/*
 * Add this AST_Enum (manifest type declaration) to the current scope
 */
AST_Enum *AST_Exception::fe_add_enum(AST_Enum *t)
{
  AST_Decl *d;

  /*
   * Already defined and cannot be redefined? Or already used?
   */
  if ((d = lookup_for_add(t, I_FALSE)) != NULL) {
    if (!can_be_redefined(d)) {
      idl_global->err()->error3(UTL_Error::EIDL_REDEF, t, this, d);
      return NULL;
    }
    if (referenced(d)) {
      idl_global->err()->error3(UTL_Error::EIDL_DEF_USE, t, this, d);
      return NULL;
    }
    if (t->has_ancestor(d)) {
      idl_global->err()->redefinition_in_scope(t, d);
      return NULL;
    }
  }
  /*
   * Add it to local types
   */
  add_to_local_types(t);
  /*
   * Add it to set of locally referenced symbols
   */
  add_to_referenced(t, I_FALSE);

  return t;
}

/*
 * Add this AST_EnumVal (enumerator declaration) to the current scope.
 * This is done to conform to the C++ scoping rules which declare
 * enumerators in the enclosing scope (in addition to declaring them
 * in the enum itself)
 */
AST_EnumVal *AST_Exception::fe_add_enum_val(AST_EnumVal *t)
{
  AST_Decl *d;

  /*
   * Already defined and cannot be redefined? Or already used?
   */
  if ((d = lookup_for_add(t, I_FALSE)) != NULL) {
    if (!can_be_redefined(d)) {
      idl_global->err()->error3(UTL_Error::EIDL_REDEF, t, this, d);
      return NULL;
    }
    if (referenced(d)) {
      idl_global->err()->error3(UTL_Error::EIDL_DEF_USE, t, this, d);
      return NULL;
    }
    if (t->has_ancestor(d)) {
      idl_global->err()->redefinition_in_scope(t, d);
      return NULL;
    }
  }
  /*
   * Add it to scope
   */
  add_to_scope(t);
  /*
   * Add it to set of locally referenced symbols
   */
  add_to_referenced(t, I_FALSE);

  return t;
}

/*
 * Dump this AST_Exception node to the ostream o
 */
void
AST_Exception::dump( std:: ostream &o)
{
  o << "exception ";
  local_name()->dump(o);
  o << " {\n";
  UTL_Scope::dump(o);
  idl_global->indent()->skip_to(o);
  o << "}";
}

/*
 * Narrowing methods
 */
IMPL_NARROW_METHODS1(AST_Exception, AST_Structure)
IMPL_NARROW_FROM_DECL(AST_Exception)
IMPL_NARROW_FROM_SCOPE(AST_Exception)
