Subversion Repositories tendra.SVN

/*
 * Copyright (c) 2002-2006 The TenDRA Project <http://www.tendra.org/>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. Neither the name of The TenDRA Project nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific, prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
 * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $Id$
 */
/*
                 Crown Copyright (c) 1997

    This TenDRA(r) Computer Program is subject to Copyright
    owned by the United Kingdom Secretary of State for Defence
    acting through the Defence Evaluation and Research Agency
    (DERA).  It is made available to Recipients with a
    royalty-free licence for its use, reproduction, transfer
    to other parties and amendment for any purpose not excluding
    product development provided that any such use et cetera
    shall be deemed to be acceptance of the following conditions:-

        (1) Its Recipients shall ensure that this Notice is
        reproduced upon any copies or amended versions of it;

        (2) Any amended version of it shall be clearly marked to
        show both the nature of and the organisation responsible
        for the relevant amendment or amendments;

        (3) Its onward transfer from a recipient to another
        party shall be deemed to be that party's acceptance of
        these conditions;

        (4) DERA gives no warranty or assurance as to its
        quality or suitability for any purpose and DERA accepts
        no liability whatsoever in relation to any use to which
        it may be put.
*/


#ifndef ACCESS_INCLUDED
#define ACCESS_INCLUDED


/*
    TYPE REPRESENTING LIST OF PENDING ACCESS CHECKS

    This type is used to represent a list of pending access checks.  These
    fall into two categories - member accesses and base class accesses.
*/

typedef struct {
        LIST(IDENTIFIER) ids;
        LIST(GRAPH) bases;
        LIST(int) info;
        int pending;
        int inherit;
} ACCESS_LIST;


/*
    ACCESS DECLARATIONS

    The routines in this module are concerned with class member access.
*/

extern IDENTIFIER access_decl(IDENTIFIER);
extern void friend_function(CLASS_TYPE, IDENTIFIER, int);
extern void friend_class(CLASS_TYPE, IDENTIFIER, int);
extern DECL_SPEC join_access(DECL_SPEC, DECL_SPEC);
extern void check_access(IDENTIFIER, DECL_SPEC);
extern void check_base_access(GRAPH);
extern void immediate_access(IDENTIFIER, IDENTIFIER);
extern int clear_access(IDENTIFIER, ACCESS_LIST *);
extern int report_access(IDENTIFIER);
extern void adjust_access(IDENTIFIER, DECL_SPEC, int);
extern void free_access(ACCESS_LIST *);
extern void save_access(ACCESS_LIST *);
extern int restore_access(IDENTIFIER, ACCESS_LIST *);
extern ACCESS_LIST crt_access_list;
extern int do_access_checks;
extern DECL_SPEC crt_access;
extern DECL_SPEC prev_access;
extern int have_access_decl;


/*
    SECONDARY ACCESS MACROS

    These macros are used for converting between primary and secondary
    access values.
*/

#define shadow_access(A)        (((A) & dspec_access) << 2)
#define unshadow_access(A)      (((A) & dspec_access2) >> 2)


#endif