| 1 | /* Copyright (C) 2000 Free Software Foundation, Inc. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2, or (at your option) |
| 6 | * any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this software; see the file COPYING. If not, write to |
| 15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
| 16 | * Boston, MA 02111-1307 USA |
| 17 | * |
| 18 | * As a special exception, the Free Software Foundation gives permission |
| 19 | * for additional uses of the text contained in its release of GUILE. |
| 20 | * |
| 21 | * The exception is that, if you link the GUILE library with other files |
| 22 | * to produce an executable, this does not by itself cause the |
| 23 | * resulting executable to be covered by the GNU General Public License. |
| 24 | * Your use of that executable is in no way restricted on account of |
| 25 | * linking the GUILE library code into it. |
| 26 | * |
| 27 | * This exception does not however invalidate any other reasons why |
| 28 | * the executable file might be covered by the GNU General Public License. |
| 29 | * |
| 30 | * This exception applies only to the code released by the |
| 31 | * Free Software Foundation under the name GUILE. If you copy |
| 32 | * code from other Free Software Foundation releases into a copy of |
| 33 | * GUILE, as the General Public License permits, the exception does |
| 34 | * not apply to the code that you add in this way. To avoid misleading |
| 35 | * anyone as to the status of such modified files, you must delete |
| 36 | * this exception notice from them. |
| 37 | * |
| 38 | * If you write modifications of your own for GUILE, it is your choice |
| 39 | * whether to permit this exception to apply to your modifications. |
| 40 | * If you do not wish that, delete this exception notice. */ |
| 41 | |
| 42 | #ifndef _PROGRAM_H_ |
| 43 | #define _PROGRAM_H_ |
| 44 | |
| 45 | #include <libguile.h> |
| 46 | #include "config.h" |
| 47 | |
| 48 | /* |
| 49 | * Programs |
| 50 | */ |
| 51 | |
| 52 | typedef unsigned char scm_byte_t; |
| 53 | |
| 54 | struct scm_program { |
| 55 | size_t size; /* the size of the program */ |
| 56 | unsigned char nargs; /* the number of arguments */ |
| 57 | unsigned char nrest; /* the number of rest argument (0 or 1) */ |
| 58 | unsigned char nlocs; /* the number of local variables */ |
| 59 | unsigned char nexts; /* the number of external variables */ |
| 60 | scm_byte_t *base; /* program base address */ |
| 61 | SCM meta; /* meta information */ |
| 62 | SCM objs; /* constant objects */ |
| 63 | SCM external; /* external environment */ |
| 64 | SCM holder; /* the owner of bytecode */ |
| 65 | }; |
| 66 | |
| 67 | extern scm_bits_t scm_tc16_program; |
| 68 | |
| 69 | #define SCM_PROGRAM_P(x) (SCM_SMOB_PREDICATE (scm_tc16_program, x)) |
| 70 | #define SCM_PROGRAM_DATA(x) ((struct scm_program *) SCM_SMOB_DATA (x)) |
| 71 | #define SCM_VALIDATE_PROGRAM(p,x) SCM_MAKE_VALIDATE (p, x, PROGRAM_P) |
| 72 | |
| 73 | #define SCM_PROGRAM_SIZE(x) (SCM_PROGRAM_DATA (x)->size) |
| 74 | #define SCM_PROGRAM_NARGS(x) (SCM_PROGRAM_DATA (x)->nargs) |
| 75 | #define SCM_PROGRAM_NREST(x) (SCM_PROGRAM_DATA (x)->nrest) |
| 76 | #define SCM_PROGRAM_NLOCS(x) (SCM_PROGRAM_DATA (x)->nlocs) |
| 77 | #define SCM_PROGRAM_NEXTS(x) (SCM_PROGRAM_DATA (x)->nexts) |
| 78 | #define SCM_PROGRAM_BASE(x) (SCM_PROGRAM_DATA (x)->base) |
| 79 | #define SCM_PROGRAM_META(x) (SCM_PROGRAM_DATA (x)->meta) |
| 80 | #define SCM_PROGRAM_OBJS(x) (SCM_PROGRAM_DATA (x)->objs) |
| 81 | #define SCM_PROGRAM_LINKS(x) (SCM_PROGRAM_DATA (x)->links) |
| 82 | #define SCM_PROGRAM_EXTERNAL(x) (SCM_PROGRAM_DATA (x)->external) |
| 83 | #define SCM_PROGRAM_HOLDER(x) (SCM_PROGRAM_DATA (x)->holder) |
| 84 | |
| 85 | extern SCM scm_c_make_program (void *addr, size_t size, SCM holder); |
| 86 | extern SCM scm_c_make_closure (SCM program, SCM external); |
| 87 | |
| 88 | extern void scm_init_programs (void); |
| 89 | |
| 90 | #endif /* _PROGRAM_H_ */ |
| 91 | |
| 92 | /* |
| 93 | Local Variables: |
| 94 | c-file-style: "gnu" |
| 95 | End: |
| 96 | */ |