1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159
|
/* GNU Guile interface for GNU Make.
Copyright (C) 2011-2014 Free Software Foundation, Inc.
This file is part of GNU Make.
GNU Make is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3 of the License, or (at your option) any later
version.
GNU Make 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <http://www.gnu.org/licenses/>. */
#include "makeint.h"
#ifdef HAVE_GUILE
#include "gnumake.h"
#include "debug.h"
#include "filedef.h"
#include "dep.h"
#include "variable.h"
#include <libguile.h>
/* Pre-2.0 versions of Guile don't have a typedef for gsubr function types. */
#if SCM_MAJOR_VERSION < 2
# define GSUBR_TYPE SCM (*) ()
/* Guile 1.x doesn't really support i18n. */
# define EVAL_STRING(_s) scm_c_eval_string (_s)
#else
# define GSUBR_TYPE scm_t_subr
# define EVAL_STRING(_s) scm_eval_string (scm_from_utf8_string (_s))
#endif
static SCM make_mod = SCM_EOL;
static SCM obj_to_str = SCM_EOL;
/* Convert an SCM object into a string. */
static char *
cvt_scm_to_str (SCM obj)
{
return scm_to_locale_string (scm_call_1 (obj_to_str, obj));
}
/* Perform the GNU make expansion function. */
static SCM
guile_expand_wrapper (SCM obj)
{
char *str = cvt_scm_to_str (obj);
SCM ret;
char *res;
DB (DB_BASIC, (_("guile: Expanding '%s'\n"), str));
res = gmk_expand (str);
ret = scm_from_locale_string (res);
free (str);
free (res);
return ret;
}
/* Perform the GNU make eval function. */
static SCM
guile_eval_wrapper (SCM obj)
{
char *str = cvt_scm_to_str (obj);
DB (DB_BASIC, (_("guile: Evaluating '%s'\n"), str));
gmk_eval (str, 0);
return SCM_BOOL_F;
}
/* Invoked by scm_c_define_module(), in the context of the GNU make module. */
static void
guile_define_module (void *data UNUSED)
{
/* Ingest the predefined Guile module for GNU make. */
#include "gmk-default.h"
/* Register a subr for GNU make's eval capability. */
scm_c_define_gsubr ("gmk-expand", 1, 0, 0, (GSUBR_TYPE) guile_expand_wrapper);
/* Register a subr for GNU make's eval capability. */
scm_c_define_gsubr ("gmk-eval", 1, 0, 0, (GSUBR_TYPE) guile_eval_wrapper);
/* Define the rest of the module. */
scm_c_eval_string (GUILE_module_defn);
}
/* Initialize the GNU make Guile module. */
static void *
guile_init (void *arg UNUSED)
{
/* Define the module. */
make_mod = scm_c_define_module ("gnu make", guile_define_module, NULL);
/* Get a reference to the object-to-string translator, for later. */
obj_to_str = scm_variable_ref (scm_c_module_lookup (make_mod, "obj-to-str"));
/* Import the GNU make module exports into the generic space. */
scm_c_eval_string ("(use-modules (gnu make))");
return NULL;
}
static void *
internal_guile_eval (void *arg)
{
return cvt_scm_to_str (EVAL_STRING (arg));
}
/* This is the function registered with make */
static char *
func_guile (const char *funcname UNUSED, unsigned int argc UNUSED, char **argv)
{
static int init = 0;
if (! init)
{
/* Initialize the Guile interpreter. */
scm_with_guile (guile_init, NULL);
init = 1;
}
if (argv[0] && argv[0][0] != '\0')
return scm_with_guile (internal_guile_eval, argv[0]);
return NULL;
}
/* ----- Public interface ----- */
/* We could send the flocp to define_new_function(), but since guile is
"kind of" built-in, that didn't seem so useful. */
int
guile_gmake_setup (const gmk_floc *flocp UNUSED)
{
/* Create a make function "guile". */
gmk_add_function ("guile", func_guile, 0, 1, GMK_FUNC_DEFAULT);
return 1;
}
#else
int
guile_gmake_setup (const gmk_floc *flocp UNUSED)
{
return 1;
}
#endif
|