libguile/gsubr.h

   1 /* classes: h_files */
   2
   3 #ifndef SCM_GSUBR_H
   4 #define SCM_GSUBR_H
   5
   6 /* Copyright (C) 1995, 1996, 1998, 2000, 2001, 2006, 2008, 2009,
   7  *   2010, 2011 Free Software Foundation, Inc.
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public License
  11  * as published by the Free Software Foundation; either version 3 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  22  * 02110-1301 USA
  23  */
  24
  25 \f
  26
  27 #include "libguile/__scm.h"
  28
  29
  30 \f
  31
  32
  33 SCM_API SCM scm_subr_objcode_trampoline (unsigned int nreq,
  34                                          unsigned int nopt,
  35                                          unsigned int rest);
  36
  37
  38 /* Subrs
  39  */
  40
  41 /* Max number of args to the C procedure backing a gsubr */
  42 #define SCM_GSUBR_MAX 10
  43
  44 #define SCM_PRIMITIVE_P(x) (SCM_PROGRAM_P (x) && SCM_PROGRAM_IS_PRIMITIVE (x))
  45
  46 #define SCM_PRIMITIVE_GENERIC_P(x) (SCM_PROGRAM_P (x) && SCM_PROGRAM_IS_PRIMITIVE_GENERIC (x))
  47
  48 #define SCM_SUBRF(x)                                                    \
  49   ((SCM (*) (void))                                                     \
  50    SCM_POINTER_VALUE (SCM_SIMPLE_VECTOR_REF (SCM_PROGRAM_OBJTABLE (x), 0)))
  51
  52 #define SCM_SUBR_NAME(x) (SCM_SIMPLE_VECTOR_REF (SCM_PROGRAM_OBJTABLE (x), 1))
  53
  54 #define SCM_SUBR_GENERIC(x)                                             \
  55   ((SCM *)                                                              \
  56    SCM_POINTER_VALUE (SCM_SIMPLE_VECTOR_REF (SCM_PROGRAM_OBJTABLE (x), 2)))
  57
  58 #define SCM_SET_SUBR_GENERIC(x, g) \
  59   (*SCM_SUBR_GENERIC (x) = (g))
  60
  61 \f
  62
  63 SCM_API SCM scm_c_make_gsubr (const char *name,
  64                               int req, int opt, int rst, scm_t_subr fcn);
  65 SCM_API SCM scm_c_make_gsubr_with_generic (const char *name,
  66                                            int req, int opt, int rst,
  67                                            scm_t_subr fcn, SCM *gf);
  68 SCM_API SCM scm_c_define_gsubr (const char *name,
  69                                 int req, int opt, int rst, scm_t_subr fcn);
  70 SCM_API SCM scm_c_define_gsubr_with_generic (const char *name,
  71                                              int req, int opt, int rst,
  72                                              scm_t_subr fcn, SCM *gf);
  73
  74 SCM_INTERNAL void scm_init_gsubr (void);
  75
  76 #endif  /* SCM_GSUBR_H */
  77
  78 /*
  79   Local Variables:
  80   c-file-style: "gnu"
  81   End:
  82 */