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guile/libguile/objcodes.h
Andy Wingo fd12a19a5e subrs are now VM trampoline procedures
* libguile/_scm.h: Add foreign.h and programs.h to the private include
  list, as snarfing subrs with static allocation now needs access to
  some of their enums and macros.

* libguile/gsubr.c (create_gsubr): Instead of creating a tc7_gsubr
  object, create a VM program with the call-subr opcode, so that the
  representation of subrs is now gsubrs. CPP and elisp, together at
  last.
  (scm_subr_objcode_trampoline): New function, used by the SCM_DEFINE
  snarf macro.

* libguile/gsubr.h (SCM_SUBR_META_INFO, SCM_SUBR_PROPS)
  (SCM_SET_SUBR_GENERIC_LOC, SCM_SUBR_ARITY_TO_TYPE): Remove these
  macros. They were never deprecated, but hopefully people aren't using
  them.
  (SCM_SUBRF, SCM_SUBR_NAME, SCM_SUBR_GENERIC, SCM_SET_SUBR_GENERIC):
  Update to work on the new subr representation.

* libguile/objcodes.h (SCM_F_OBJCODE_IS_STATIC): New flag, indicates
  that the "backing store" of the objcode is statically allocated.

* libguile/procprop.c (scm_sym_name): Define here instead of in gsubr.c.

* libguile/snarf.h (SCM_DEFINE): If we are doing static allocation,
  statically allocate the foreign object, the object table, and the
  program, and use some SCM_SNARF_INITtery to fix things up.
  Unfortunately I have not been able to make this immutable. It might be
  possible, though.
  (SCM_IMMUTABLE_CELL, SCM_STATIC_DOUBLE_CELL, SCM_IMMUTABLE_FOREIGN):
  (SCM_STATIC_SUBR_OBJVECT, SCM_STATIC_PROGRAM): New helper macros.
2010-01-07 23:49:25 +01:00

76 lines
2.9 KiB
C

/* Copyright (C) 2001, 2009, 2010 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifndef _SCM_OBJCODES_H_
#define _SCM_OBJCODES_H_
#include <libguile.h>
/* Objcode data should be directly mappable to this C structure. */
struct scm_objcode
{
scm_t_uint32 len; /* the maximum index of base[] */
scm_t_uint32 metalen; /* well, i lie. this many bytes at the end of
base[] for metadata */
/* In C99, we'd have:
scm_t_uint8 base[]; */
};
/* Return a pointer to the base of objcode OBJ. */
#define SCM_C_OBJCODE_BASE(obj) \
((scm_t_uint8 *)(obj) + sizeof (struct scm_objcode))
#define SCM_F_OBJCODE_IS_MMAP (1<<0)
#define SCM_F_OBJCODE_IS_BYTEVECTOR (1<<1)
#define SCM_F_OBJCODE_IS_SLICE (1<<2)
#define SCM_F_OBJCODE_IS_STATIC (1<<3)
#define SCM_OBJCODE_P(x) (SCM_NIMP (x) && SCM_TYP7 (x) == scm_tc7_objcode)
#define SCM_OBJCODE_DATA(x) ((struct scm_objcode *) SCM_CELL_WORD_1 (x))
#define SCM_VALIDATE_OBJCODE(p,x) SCM_MAKE_VALIDATE (p, x, OBJCODE_P)
#define SCM_OBJCODE_LEN(x) (SCM_OBJCODE_DATA (x)->len)
#define SCM_OBJCODE_META_LEN(x) (SCM_OBJCODE_DATA (x)->metalen)
#define SCM_OBJCODE_TOTAL_LEN(x) (SCM_OBJCODE_LEN (x) + SCM_OBJCODE_META_LEN (x))
#define SCM_OBJCODE_BASE(x) (SCM_C_OBJCODE_BASE (SCM_OBJCODE_DATA (x)))
#define SCM_OBJCODE_FLAGS(x) (SCM_CELL_WORD_0 (x) >> 8)
#define SCM_OBJCODE_IS_MMAP(x) (SCM_OBJCODE_FLAGS (x) & SCM_F_OBJCODE_IS_MMAP)
#define SCM_OBJCODE_IS_BYTEVECTOR(x) (SCM_OBJCODE_FLAGS (x) & SCM_F_OBJCODE_IS_BYTEVECTOR)
#define SCM_OBJCODE_IS_SLICE(x) (SCM_OBJCODE_FLAGS (x) & SCM_F_OBJCODE_IS_SLICE)
SCM scm_c_make_objcode_slice (SCM parent, const scm_t_uint8 *ptr);
SCM_API SCM scm_load_objcode (SCM file);
SCM_API SCM scm_objcode_p (SCM obj);
SCM_API SCM scm_objcode_meta (SCM objcode);
SCM_API SCM scm_bytecode_to_objcode (SCM bytecode);
SCM_API SCM scm_objcode_to_bytecode (SCM objcode);
SCM_API SCM scm_write_objcode (SCM objcode, SCM port);
SCM_INTERNAL void scm_i_objcode_print (SCM objcode, SCM port,
scm_print_state *pstate);
SCM_INTERNAL void scm_bootstrap_objcodes (void);
SCM_INTERNAL void scm_init_objcodes (void);
#endif /* _SCM_OBJCODES_H_ */
/*
Local Variables:
c-file-style: "gnu"
End:
*/