1 /* Copyright (C) 1995,1996,1998,1999,2000,2001, 2004, 2006, 2008, 2009, 2010 Free Software Foundation, Inc.
3 * This library is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU Lesser General Public License
5 * as published by the Free Software Foundation; either version 3 of
6 * the License, or (at your option) any later version.
8 * This library is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * Lesser General Public License for more details.
13 * You should have received a copy of the GNU Lesser General Public
14 * License along with this library; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
29 #include "libguile/_scm.h"
30 #include "libguile/private-gc.h" /* scm_getenv_int */
31 #include "libguile/libpath.h"
32 #include "libguile/fports.h"
33 #include "libguile/read.h"
34 #include "libguile/eval.h"
35 #include "libguile/throw.h"
36 #include "libguile/alist.h"
37 #include "libguile/dynwind.h"
38 #include "libguile/root.h"
39 #include "libguile/strings.h"
40 #include "libguile/modules.h"
41 #include "libguile/chars.h"
42 #include "libguile/srfi-13.h"
44 #include "libguile/validate.h"
45 #include "libguile/load.h"
46 #include "libguile/fluids.h"
48 #include "libguile/vm.h" /* for load-compiled/vm */
50 #include <sys/types.h>
55 #endif /* HAVE_UNISTD_H */
59 #endif /* HAVE_PWD_H */
66 /* Loading a file, given an absolute filename. */
68 /* Hook to run when we load a file, perhaps to announce the fact somewhere.
69 Applied to the full name of the file. */
70 static SCM
*scm_loc_load_hook
;
72 /* The current reader (a fluid). */
73 static SCM the_reader
= SCM_BOOL_F
;
76 SCM_DEFINE (scm_primitive_load
, "primitive-load", 1, 0, 0,
78 "Load the file named @var{filename} and evaluate its contents in\n"
79 "the top-level environment. The load paths are not searched;\n"
80 "@var{filename} must either be a full pathname or be a pathname\n"
81 "relative to the current directory. If the variable\n"
82 "@code{%load-hook} is defined, it should be bound to a procedure\n"
83 "that will be called before any code is loaded. See the\n"
84 "documentation for @code{%load-hook} later in this section.")
85 #define FUNC_NAME s_scm_primitive_load
87 SCM hook
= *scm_loc_load_hook
;
89 SCM_VALIDATE_STRING (1, filename
);
90 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
91 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
94 if (!scm_is_false (hook
))
95 scm_call_1 (hook
, filename
);
98 SCM port
= scm_open_file (filename
, scm_from_locale_string ("r"));
99 scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE
);
100 scm_i_dynwind_current_load_port (port
);
102 encoding
= scm_i_scan_for_encoding (port
);
104 scm_i_set_port_encoding_x (port
, encoding
);
106 /* The file has no encoding declared. We'll presume Latin-1. */
107 scm_i_set_port_encoding_x (port
, NULL
);
113 /* Lookup and use the current reader to read the next
115 reader
= scm_fluid_ref (the_reader
);
116 if (reader
== SCM_BOOL_F
)
117 form
= scm_read (port
);
119 form
= scm_call_1 (reader
, port
);
121 if (SCM_EOF_OBJECT_P (form
))
124 scm_primitive_eval_x (form
);
128 scm_close_port (port
);
130 return SCM_UNSPECIFIED
;
135 scm_c_primitive_load (const char *filename
)
137 return scm_primitive_load (scm_from_locale_string (filename
));
141 /* Builtin path to scheme library files. */
142 #ifdef SCM_PKGDATA_DIR
143 SCM_DEFINE (scm_sys_package_data_dir
, "%package-data-dir", 0, 0, 0,
145 "Return the name of the directory where Scheme packages, modules and\n"
146 "libraries are kept. On most Unix systems, this will be\n"
147 "@samp{/usr/local/share/guile}.")
148 #define FUNC_NAME s_scm_sys_package_data_dir
150 return scm_from_locale_string (SCM_PKGDATA_DIR
);
153 #endif /* SCM_PKGDATA_DIR */
155 #ifdef SCM_LIBRARY_DIR
156 SCM_DEFINE (scm_sys_library_dir
, "%library-dir", 0,0,0,
158 "Return the directory where the Guile Scheme library files are installed.\n"
159 "E.g., may return \"/usr/share/guile/1.3.5\".")
160 #define FUNC_NAME s_scm_sys_library_dir
162 return scm_from_locale_string (SCM_LIBRARY_DIR
);
165 #endif /* SCM_LIBRARY_DIR */
168 SCM_DEFINE (scm_sys_site_dir
, "%site-dir", 0,0,0,
170 "Return the directory where users should install Scheme code for use\n"
171 "with this version of Guile.\n\n"
172 "E.g., may return \"/usr/share/guile/site/" SCM_EFFECTIVE_VERSION
"\".")
173 #define FUNC_NAME s_scm_sys_site_dir
175 return scm_from_locale_string (SCM_SITE_DIR
);
178 #endif /* SCM_SITE_DIR */
180 #ifdef SCM_GLOBAL_SITE_DIR
181 SCM_DEFINE (scm_sys_global_site_dir
, "%global-site-dir", 0,0,0,
183 "Return the directory where users should install Scheme code for use\n"
184 "with all versions of Guile.\n\n"
185 "E.g., may return \"/usr/share/guile/site\".")
186 #define FUNC_NAME s_scm_sys_global_site_dir
188 return scm_from_locale_string (SCM_GLOBAL_SITE_DIR
);
191 #endif /* SCM_GLOBAL_SITE_DIR */
195 /* Initializing the load path, and searching it. */
197 /* List of names of directories we search for files to load. */
198 static SCM
*scm_loc_load_path
;
200 /* List of extensions we try adding to the filenames. */
201 static SCM
*scm_loc_load_extensions
;
203 /* Like %load-path and %load-extensions, but for compiled files. */
204 static SCM
*scm_loc_load_compiled_path
;
205 static SCM
*scm_loc_load_compiled_extensions
;
207 /* Whether we should try to auto-compile. */
208 static SCM
*scm_loc_load_should_autocompile
;
210 /* The fallback path for autocompilation */
211 static SCM
*scm_loc_compile_fallback_path
;
213 SCM_DEFINE (scm_parse_path
, "parse-path", 1, 1, 0,
214 (SCM path
, SCM tail
),
215 "Parse @var{path}, which is expected to be a colon-separated\n"
216 "string, into a list and return the resulting list with\n"
217 "@var{tail} appended. If @var{path} is @code{#f}, @var{tail}\n"
219 #define FUNC_NAME s_scm_parse_path
222 SCM sep
= SCM_MAKE_CHAR (';');
224 SCM sep
= SCM_MAKE_CHAR (':');
227 if (SCM_UNBNDP (tail
))
229 return (scm_is_false (path
)
231 : scm_append_x (scm_list_2 (scm_string_split (path
, sep
), tail
)));
236 /* Initialize the global variable %load-path, given the value of the
237 SCM_SITE_DIR and SCM_LIBRARY_DIR preprocessor symbols and the
238 GUILE_LOAD_PATH environment variable. */
240 scm_init_load_path ()
246 #ifdef SCM_LIBRARY_DIR
247 env
= getenv ("GUILE_SYSTEM_PATH");
248 if (env
&& strcmp (env
, "") == 0)
249 /* special-case interpret system-path=="" as meaning no system path instead
253 path
= scm_parse_path (scm_from_locale_string (env
), path
);
255 path
= scm_list_4 (scm_from_locale_string (SCM_LIBRARY_DIR
),
256 scm_from_locale_string (SCM_SITE_DIR
),
257 scm_from_locale_string (SCM_GLOBAL_SITE_DIR
),
258 scm_from_locale_string (SCM_PKGDATA_DIR
));
260 env
= getenv ("GUILE_SYSTEM_COMPILED_PATH");
261 if (env
&& strcmp (env
, "") == 0)
265 cpath
= scm_parse_path (scm_from_locale_string (env
), cpath
);
267 cpath
= scm_cons (scm_from_locale_string (SCM_CCACHE_DIR
), cpath
);
269 #endif /* SCM_LIBRARY_DIR */
278 #define FALLBACK_DIR \
279 "guile/ccache/" SCM_EFFECTIVE_VERSION "-" SCM_OBJCODE_MACHINE_VERSION_STRING
281 if ((e
= getenv ("XDG_CACHE_HOME")))
282 snprintf (cachedir
, sizeof(cachedir
), "%s/" FALLBACK_DIR
, e
);
283 else if ((e
= getenv ("HOME")))
284 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
286 else if ((pwd
= getpwuid (getuid ())) && pwd
->pw_dir
)
287 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
,
289 #endif /* HAVE_GETPWENT */
294 *scm_loc_compile_fallback_path
= scm_from_locale_string (cachedir
);
297 env
= getenv ("GUILE_LOAD_PATH");
299 path
= scm_parse_path (scm_from_locale_string (env
), path
);
301 env
= getenv ("GUILE_LOAD_COMPILED_PATH");
303 cpath
= scm_parse_path (scm_from_locale_string (env
), cpath
);
305 *scm_loc_load_path
= path
;
306 *scm_loc_load_compiled_path
= cpath
;
309 SCM scm_listofnullstr
;
311 /* Utility functions for assembling C strings in a buffer.
320 stringbuf_free (void *data
)
322 struct stringbuf
*buf
= (struct stringbuf
*)data
;
327 stringbuf_grow (struct stringbuf
*buf
)
329 size_t ptroff
= buf
->ptr
- buf
->buf
;
331 buf
->buf
= scm_realloc (buf
->buf
, buf
->buf_len
);
332 buf
->ptr
= buf
->buf
+ ptroff
;
336 stringbuf_cat_locale_string (struct stringbuf
*buf
, SCM str
)
338 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
339 size_t len
= scm_to_locale_stringbuf (str
, buf
->ptr
, max_len
);
342 /* buffer is too small, double its size and try again.
344 stringbuf_grow (buf
);
345 stringbuf_cat_locale_string (buf
, str
);
349 /* string fits, terminate it and check for embedded '\0'.
351 buf
->ptr
[len
] = '\0';
352 if (strlen (buf
->ptr
) != len
)
353 scm_misc_error (NULL
,
354 "string contains #\\nul character: ~S",
361 stringbuf_cat (struct stringbuf
*buf
, char *str
)
363 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
364 size_t len
= strlen (str
);
367 /* buffer is too small, double its size and try again.
369 stringbuf_grow (buf
);
370 stringbuf_cat (buf
, str
);
374 /* string fits, copy it into buffer.
376 strcpy (buf
->ptr
, str
);
383 scm_c_string_has_an_ext (char *str
, size_t len
, SCM extensions
)
385 for (; !scm_is_null (extensions
); extensions
= SCM_CDR (extensions
))
390 ext
= scm_to_locale_string (SCM_CAR (extensions
));
391 extlen
= strlen (ext
);
392 match
= (len
> extlen
&& str
[len
- extlen
- 1] == '.'
393 && strncmp (str
+ (len
- extlen
), ext
, extlen
) == 0);
401 /* Search PATH for a directory containing a file named FILENAME.
402 The file must be readable, and not a directory.
403 If we find one, return its full filename; otherwise, return #f.
404 If FILENAME is absolute, return it unchanged.
405 If given, EXTENSIONS is a list of strings; for each directory
406 in PATH, we search for FILENAME concatenated with each EXTENSION. */
407 SCM_DEFINE (scm_search_path
, "search-path", 2, 0, 1,
408 (SCM path
, SCM filename
, SCM rest
),
409 "Search @var{path} for a directory containing a file named\n"
410 "@var{filename}. The file must be readable, and not a directory.\n"
411 "If we find one, return its full filename; otherwise, return\n"
412 "@code{#f}. If @var{filename} is absolute, return it unchanged.\n"
413 "If given, @var{extensions} is a list of strings; for each\n"
414 "directory in @var{path}, we search for @var{filename}\n"
415 "concatenated with each @var{extension}.")
416 #define FUNC_NAME s_scm_search_path
418 struct stringbuf buf
;
419 char *filename_chars
;
421 SCM extensions
, require_exts
;
422 SCM result
= SCM_BOOL_F
;
424 if (SCM_UNBNDP (rest
) || scm_is_null (rest
))
426 /* Called either by Scheme code that didn't provide the optional
427 arguments, or C code that used the Guile 1.8 signature (2 required,
428 1 optional arg) and passed '() or nothing as the EXTENSIONS
430 extensions
= SCM_EOL
;
431 require_exts
= SCM_UNDEFINED
;
435 if (scm_is_null (SCM_CAR (rest
)) || scm_is_pair (SCM_CAR (rest
)))
437 /* Called by Scheme code written for 1.9. */
438 extensions
= SCM_CAR (rest
);
439 if (scm_is_null (SCM_CDR (rest
)))
440 require_exts
= SCM_UNDEFINED
;
443 require_exts
= SCM_CADR (rest
);
444 if (SCM_UNLIKELY (!scm_is_null (SCM_CDDR (rest
))))
445 scm_wrong_num_args (scm_from_locale_string (FUNC_NAME
));
450 /* Called by C code that uses the 1.8 signature, i.e., which
451 expects the 3rd argument to be EXTENSIONS. */
453 require_exts
= SCM_UNDEFINED
;
457 if (SCM_UNBNDP (extensions
))
458 extensions
= SCM_EOL
;
460 SCM_VALIDATE_LIST (3, extensions
);
462 if (SCM_UNBNDP (require_exts
))
463 require_exts
= SCM_BOOL_F
;
465 scm_dynwind_begin (0);
467 filename_chars
= scm_to_locale_string (filename
);
468 filename_len
= strlen (filename_chars
);
469 scm_dynwind_free (filename_chars
);
471 /* If FILENAME is absolute, return it unchanged. */
473 if (((filename_len
>= 1) &&
474 (filename_chars
[0] == '/' || filename_chars
[0] == '\\')) ||
475 ((filename_len
>= 3) && filename_chars
[1] == ':' &&
476 ((filename_chars
[0] >= 'a' && filename_chars
[0] <= 'z') ||
477 (filename_chars
[0] >= 'A' && filename_chars
[0] <= 'Z')) &&
478 (filename_chars
[2] == '/' || filename_chars
[2] == '\\')))
480 if (filename_len
>= 1 && filename_chars
[0] == '/')
484 if (scm_is_true (require_exts
) &&
485 !scm_c_string_has_an_ext (filename_chars
, filename_len
,
493 /* If FILENAME has an extension, don't try to add EXTENSIONS to it. */
497 for (endp
= filename_chars
+ filename_len
- 1;
498 endp
>= filename_chars
;
503 if (scm_is_true (require_exts
) &&
504 !scm_c_string_has_an_ext (filename_chars
, filename_len
,
507 /* This filename has an extension, but not one of the right
512 /* This filename already has an extension, so cancel the
513 list of extensions. */
514 extensions
= SCM_EOL
;
518 else if (*endp
== '/' || *endp
== '\\')
520 else if (*endp
== '/')
522 /* This filename has no extension, so keep the current list
528 /* This simplifies the loop below a bit.
530 if (scm_is_null (extensions
))
531 extensions
= scm_listofnullstr
;
534 buf
.buf
= scm_malloc (buf
.buf_len
);
535 scm_dynwind_unwind_handler (stringbuf_free
, &buf
, SCM_F_WIND_EXPLICITLY
);
537 /* Try every path element.
539 for (; scm_is_pair (path
); path
= SCM_CDR (path
))
541 SCM dir
= SCM_CAR (path
);
546 stringbuf_cat_locale_string (&buf
, dir
);
548 /* Concatenate the path name and the filename. */
551 if ((buf
.ptr
> buf
.buf
) && (buf
.ptr
[-1] != '/') && (buf
.ptr
[-1] != '\\'))
553 if ((buf
.ptr
> buf
.buf
) && (buf
.ptr
[-1] != '/'))
555 stringbuf_cat (&buf
, "/");
557 stringbuf_cat (&buf
, filename_chars
);
558 sans_ext_len
= buf
.ptr
- buf
.buf
;
560 /* Try every extension. */
561 for (exts
= extensions
; scm_is_pair (exts
); exts
= SCM_CDR (exts
))
563 SCM ext
= SCM_CAR (exts
);
566 buf
.ptr
= buf
.buf
+ sans_ext_len
;
567 stringbuf_cat_locale_string (&buf
, ext
);
569 /* If the file exists at all, we should return it. If the
570 file is inaccessible, then that's an error. */
572 if (stat (buf
.buf
, &mode
) == 0
573 && ! (mode
.st_mode
& S_IFDIR
))
575 result
= scm_from_locale_string (buf
.buf
);
580 if (!SCM_NULL_OR_NIL_P (exts
))
581 scm_wrong_type_arg_msg (NULL
, 0, extensions
, "proper list");
584 if (!SCM_NULL_OR_NIL_P (path
))
585 scm_wrong_type_arg_msg (NULL
, 0, path
, "proper list");
594 /* Search %load-path for a directory containing a file named FILENAME.
595 The file must be readable, and not a directory.
596 If we find one, return its full filename; otherwise, return #f.
597 If FILENAME is absolute, return it unchanged. */
598 SCM_DEFINE (scm_sys_search_load_path
, "%search-load-path", 1, 0, 0,
600 "Search @var{%load-path} for the file named @var{filename},\n"
601 "which must be readable by the current user. If @var{filename}\n"
602 "is found in the list of paths to search or is an absolute\n"
603 "pathname, return its full pathname. Otherwise, return\n"
604 "@code{#f}. Filenames may have any of the optional extensions\n"
605 "in the @code{%load-extensions} list; @code{%search-load-path}\n"
606 "will try each extension automatically.")
607 #define FUNC_NAME s_scm_sys_search_load_path
609 SCM path
= *scm_loc_load_path
;
610 SCM exts
= *scm_loc_load_extensions
;
611 SCM_VALIDATE_STRING (1, filename
);
613 if (scm_ilength (path
) < 0)
614 SCM_MISC_ERROR ("%load-path is not a proper list", SCM_EOL
);
615 if (scm_ilength (exts
) < 0)
616 SCM_MISC_ERROR ("%load-extension list is not a proper list", SCM_EOL
);
617 return scm_search_path (path
, filename
, exts
);
623 compiled_is_fresh (SCM full_filename
, SCM compiled_filename
)
625 char *source
, *compiled
;
626 struct stat stat_source
, stat_compiled
;
629 source
= scm_to_locale_string (full_filename
);
630 compiled
= scm_to_locale_string (compiled_filename
);
632 if (stat (source
, &stat_source
) == 0
633 && stat (compiled
, &stat_compiled
) == 0
634 && stat_source
.st_mtime
<= stat_compiled
.st_mtime
)
640 scm_puts (";;; note: source file ", scm_current_error_port ());
641 scm_puts (source
, scm_current_error_port ());
642 scm_puts ("\n;;; newer than compiled ", scm_current_error_port ());
643 scm_puts (compiled
, scm_current_error_port ());
644 scm_puts ("\n", scm_current_error_port ());
653 SCM_KEYWORD (kw_env
, "env");
656 do_try_autocompile (void *data
)
658 SCM source
= PTR2SCM (data
);
659 SCM comp_mod
, compile_file
;
661 scm_puts (";;; compiling ", scm_current_error_port ());
662 scm_display (source
, scm_current_error_port ());
663 scm_newline (scm_current_error_port ());
665 comp_mod
= scm_c_resolve_module ("system base compile");
666 compile_file
= scm_module_variable
667 (comp_mod
, scm_from_locale_symbol ("compile-file"));
669 if (scm_is_true (compile_file
))
671 /* Auto-compile in the context of the current module. */
672 SCM res
= scm_call_3 (scm_variable_ref (compile_file
), source
,
673 kw_env
, scm_current_module ());
674 scm_puts (";;; compiled ", scm_current_error_port ());
675 scm_display (res
, scm_current_error_port ());
676 scm_newline (scm_current_error_port ());
681 scm_puts (";;; it seems ", scm_current_error_port ());
682 scm_display (source
, scm_current_error_port ());
683 scm_puts ("\n;;; is part of the compiler; skipping autocompilation\n",
684 scm_current_error_port ());
690 autocompile_catch_handler (void *data
, SCM tag
, SCM throw_args
)
692 SCM source
= PTR2SCM (data
);
693 scm_puts (";;; WARNING: compilation of ", scm_current_error_port ());
694 scm_display (source
, scm_current_error_port ());
695 scm_puts (" failed:\n", scm_current_error_port ());
696 scm_puts (";;; key ", scm_current_error_port ());
697 scm_write (tag
, scm_current_error_port ());
698 scm_puts (", throw args ", scm_current_error_port ());
699 scm_write (throw_args
, scm_current_error_port ());
700 scm_newline (scm_current_error_port ());
704 SCM_DEFINE (scm_sys_warn_autocompilation_enabled
, "%warn-autocompilation-enabled", 0, 0, 0,
706 #define FUNC_NAME s_scm_sys_warn_autocompilation_enabled
708 static int message_shown
= 0;
712 scm_puts (";;; note: autocompilation is enabled, set GUILE_AUTO_COMPILE=0\n"
713 ";;; or pass the --no-autocompile argument to disable.\n",
714 scm_current_error_port ());
718 return SCM_UNSPECIFIED
;
723 scm_try_autocompile (SCM source
)
725 if (scm_is_false (*scm_loc_load_should_autocompile
))
728 scm_sys_warn_autocompilation_enabled ();
729 return scm_c_catch (SCM_BOOL_T
,
732 autocompile_catch_handler
,
737 SCM_DEFINE (scm_primitive_load_path
, "primitive-load-path", 0, 0, 1,
739 "Search @var{%load-path} for the file named @var{filename} and\n"
740 "load it into the top-level environment. If @var{filename} is a\n"
741 "relative pathname and is not found in the list of search paths,\n"
742 "an error is signalled, unless the optional argument\n"
743 "@var{exception_on_not_found} is @code{#f}, in which case\n"
744 "@code{#f} is returned instead.")
745 #define FUNC_NAME s_scm_primitive_load_path
747 SCM filename
, exception_on_not_found
;
748 SCM full_filename
, compiled_filename
;
749 int compiled_is_fallback
= 0;
751 if (scm_is_string (args
))
753 /* C code written for 1.8 and earlier expects this function to take a
754 single argument (the file name). */
756 exception_on_not_found
= SCM_UNDEFINED
;
760 /* Starting from 1.9, this function takes 1 required and 1 optional
764 SCM_VALIDATE_LIST_COPYLEN (SCM_ARG1
, args
, len
);
765 if (len
< 1 || len
> 2)
766 scm_error_num_args_subr (FUNC_NAME
);
768 filename
= SCM_CAR (args
);
769 SCM_VALIDATE_STRING (SCM_ARG1
, filename
);
771 exception_on_not_found
= len
> 1 ? SCM_CADR (args
) : SCM_UNDEFINED
;
774 if (SCM_UNBNDP (exception_on_not_found
))
775 exception_on_not_found
= SCM_BOOL_T
;
777 full_filename
= scm_sys_search_load_path (filename
);
778 if (scm_is_string (full_filename
))
779 full_filename
= scm_canonicalize_path (full_filename
);
782 scm_search_path (*scm_loc_load_compiled_path
,
784 scm_list_2 (*scm_loc_load_compiled_extensions
,
787 if (scm_is_false (compiled_filename
)
788 && scm_is_true (full_filename
)
789 && scm_is_true (*scm_loc_compile_fallback_path
)
790 && scm_is_pair (*scm_loc_load_compiled_extensions
)
791 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
793 SCM fallback
= scm_string_append
794 (scm_list_3 (*scm_loc_compile_fallback_path
,
796 scm_car (*scm_loc_load_compiled_extensions
)));
797 if (scm_is_true (scm_stat (fallback
, SCM_BOOL_F
)))
799 compiled_filename
= fallback
;
800 compiled_is_fallback
= 1;
804 if (scm_is_false (full_filename
) && scm_is_false (compiled_filename
))
806 if (scm_is_true (exception_on_not_found
))
807 SCM_MISC_ERROR ("Unable to find file ~S in load path",
808 scm_list_1 (filename
));
813 if (scm_is_false (full_filename
)
814 || (scm_is_true (compiled_filename
)
815 && compiled_is_fresh (full_filename
, compiled_filename
)))
816 return scm_load_compiled_with_vm (compiled_filename
);
818 /* Perhaps there was the installed .go that was stale, but our fallback is
819 fresh. Let's try that. Duplicating code, but perhaps that's OK. */
821 if (!compiled_is_fallback
822 && scm_is_true (*scm_loc_compile_fallback_path
)
823 && scm_is_pair (*scm_loc_load_compiled_extensions
)
824 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
826 SCM fallback
= scm_string_append
827 (scm_list_3 (*scm_loc_compile_fallback_path
,
829 scm_car (*scm_loc_load_compiled_extensions
)));
830 if (scm_is_true (scm_stat (fallback
, SCM_BOOL_F
))
831 && compiled_is_fresh (full_filename
, fallback
))
833 scm_puts (";;; found fresh local cache at ", scm_current_error_port ());
834 scm_display (fallback
, scm_current_error_port ());
835 scm_newline (scm_current_error_port ());
836 return scm_load_compiled_with_vm (fallback
);
840 /* Otherwise, we bottom out here. */
842 SCM freshly_compiled
= scm_try_autocompile (full_filename
);
844 if (scm_is_true (freshly_compiled
))
845 return scm_load_compiled_with_vm (freshly_compiled
);
847 return scm_primitive_load (full_filename
);
853 scm_c_primitive_load_path (const char *filename
)
855 return scm_primitive_load_path (scm_from_locale_string (filename
));
859 scm_init_eval_in_scheme (void)
861 SCM eval_scm
, eval_go
;
862 eval_scm
= scm_search_path (*scm_loc_load_path
,
863 scm_from_locale_string ("ice-9/eval.scm"),
865 eval_go
= scm_search_path (*scm_loc_load_compiled_path
,
866 scm_from_locale_string ("ice-9/eval.go"),
869 if (scm_is_true (eval_scm
) && scm_is_true (eval_go
)
870 && compiled_is_fresh (eval_scm
, eval_go
))
871 scm_load_compiled_with_vm (eval_go
);
873 /* if we have no eval.go, we shouldn't load any compiled code at all */
874 *scm_loc_load_compiled_path
= SCM_EOL
;
878 /* Information about the build environment. */
880 SCM_VARIABLE_INIT (sys_host_type
, "%host-type",
881 scm_from_locale_string (HOST_TYPE
));
884 /* Initialize the scheme variable %guile-build-info, based on data
885 provided by the Makefile, via libpath.h. */
889 static struct { char *name
; char *value
; } info
[] = SCM_BUILD_INFO
;
890 SCM
*loc
= SCM_VARIABLE_LOC (scm_c_define ("%guile-build-info", SCM_EOL
));
893 for (i
= 0; i
< (sizeof (info
) / sizeof (info
[0])); i
++)
895 SCM key
= scm_from_locale_symbol (info
[i
].name
);
896 SCM val
= scm_from_locale_string (info
[i
].value
);
897 *loc
= scm_acons (key
, val
, *loc
);
905 scm_listofnullstr
= scm_list_1 (scm_nullstr
);
906 scm_loc_load_path
= SCM_VARIABLE_LOC (scm_c_define ("%load-path", SCM_EOL
));
907 scm_loc_load_extensions
908 = SCM_VARIABLE_LOC (scm_c_define ("%load-extensions",
909 scm_list_2 (scm_from_locale_string (".scm"),
911 scm_loc_load_compiled_path
912 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-path", SCM_EOL
));
913 scm_loc_load_compiled_extensions
914 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-extensions",
915 scm_list_1 (scm_from_locale_string (".go"))));
916 scm_loc_load_hook
= SCM_VARIABLE_LOC (scm_c_define ("%load-hook", SCM_BOOL_F
));
918 scm_loc_compile_fallback_path
919 = SCM_VARIABLE_LOC (scm_c_define ("%compile-fallback-path", SCM_BOOL_F
));
920 scm_loc_load_should_autocompile
921 = SCM_VARIABLE_LOC (scm_c_define ("%load-should-autocompile", SCM_BOOL_F
));
923 the_reader
= scm_make_fluid ();
924 scm_fluid_set_x (the_reader
, SCM_BOOL_F
);
925 scm_c_define("current-reader", the_reader
);
927 scm_c_define ("load-compiled",
928 scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0,
929 scm_load_compiled_with_vm
));
933 #include "libguile/load.x"
937 scm_init_load_should_autocompile ()
939 *scm_loc_load_should_autocompile
=
940 scm_from_bool (scm_getenv_int ("GUILE_AUTO_COMPILE", 1));