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, 2013 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 /* Subrs
  34  */
  35
  36 /* Max number of args to the C procedure backing a gsubr */
  37 #define SCM_GSUBR_MAX 10
  38
  39 #define SCM_PRIMITIVE_P(x) (SCM_PROGRAM_P (x) && SCM_PROGRAM_IS_PRIMITIVE (x))
  40
  41 #define SCM_PRIMITIVE_GENERIC_P(x) (SCM_PROGRAM_P (x) && SCM_PROGRAM_IS_PRIMITIVE_GENERIC (x))
  42
  43 #define SCM_SUBRF(x)                                                    \
  44   ((SCM (*) (void))                                                     \
  45    SCM_POINTER_VALUE (SCM_PROGRAM_FREE_VARIABLE_REF (x, 0)))
  46
  47 #define SCM_SUBR_NAME(x) (SCM_PROGRAM_FREE_VARIABLE_REF (x, 1))
  48
  49 #define SCM_SUBR_GENERIC(x)                                             \
  50   ((SCM *) SCM_POINTER_VALUE (SCM_PROGRAM_FREE_VARIABLE_REF (x, 2)))
  51
  52 #define SCM_SET_SUBR_GENERIC(x, g) \
  53   (*SCM_SUBR_GENERIC (x) = (g))
  54
  55 \f
  56
  57 SCM_INTERNAL int scm_i_primitive_arity (SCM subr, int *req, int *opt, int *rest);
  58 SCM_INTERNAL scm_t_uintptr scm_i_primitive_call_ip (SCM subr);
  59
  60 SCM_API SCM scm_c_make_gsubr (const char *name,
  61                               int req, int opt, int rst, scm_t_subr fcn);
  62 SCM_API SCM scm_c_make_gsubr_with_generic (const char *name,
  63                                            int req, int opt, int rst,
  64                                            scm_t_subr fcn, SCM *gf);
  65 SCM_API SCM scm_c_define_gsubr (const char *name,
  66                                 int req, int opt, int rst, scm_t_subr fcn);
  67 SCM_API SCM scm_c_define_gsubr_with_generic (const char *name,
  68                                              int req, int opt, int rst,
  69                                              scm_t_subr fcn, SCM *gf);
  70
  71 SCM_INTERNAL void scm_init_gsubr (void);
  72
  73 #endif  /* SCM_GSUBR_H */
  74
  75 /*
  76   Local Variables:
  77   c-file-style: "gnu"
  78   End:
  79 */