/* fmtdy.h: DYLAN OBJECT FORMAT
*
* $Id: //info.ravenbrook.com/project/mps/master/code/fmtdy.h#17 $
* Copyright (c) 2001-2020 Ravenbrook Limited. See end of file for license.
*/
#ifndef fmtdy_h
#define fmtdy_h
#include "mps.h"
/* Low-level routines, exposed here so that the with-header format
* can use common code. */
extern mps_res_t dylan_scan1(mps_ss_t, mps_addr_t *);
extern mps_res_t dylan_scan1_weak(mps_ss_t, mps_addr_t *);
/* Format */
extern mps_fmt_A_s *dylan_fmt_A(void);
extern mps_fmt_A_s *dylan_fmt_A_weak(void);
extern mps_fmt_B_s *dylan_fmt_B(void);
extern mps_fmt_B_s *dylan_fmt_B_weak(void);
extern mps_res_t dylan_fmt(mps_fmt_t *, mps_arena_t);
extern mps_res_t dylan_fmt_weak(mps_fmt_t *, mps_arena_t);
extern mps_addr_t dylan_weak_dependent(mps_addr_t);
extern mps_addr_t dylan_skip(mps_addr_t);
extern void dylan_pad(mps_addr_t, size_t);
extern mps_bool_t dylan_ispad(mps_addr_t);
extern int dylan_wrapper_check(mps_word_t *);
/* Constants describing wrappers. Used only for debugging / testing */
#define WW 0 /* offset of Wrapper-Wrapper */
#define WC 1 /* offset of Class pointer*/
#define WM 2 /* offset of subtype Mask */
#define WF 3 /* offset of Fixed part descriptor */
#define WV 4 /* offset of Vector part descriptor */
#define WS 5 /* offset of Size field for pattern vector */
#define WP 6 /* offset of Pattern 0, if present */
#define BASIC_WRAPPER_SIZE (WS + 1) /* size of wrapper with no patterns */
#define ALIGN sizeof(mps_word_t) /* alignment for Dylan format */
#endif /* fmtdy_h */
/* C. COPYRIGHT AND LICENSE
*
* Copyright (C) 2001-2020 Ravenbrook Limited <https://www.ravenbrook.com/>.
*
* 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.
*
* 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
* HOLDER 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.
*/