1 /* Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2004, 2006, 2008,
2 * 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public License
6 * as published by the Free Software Foundation; either version 3 of
7 * the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
30 #include "libguile/_scm.h"
31 #include "libguile/private-gc.h" /* scm_getenv_int */
32 #include "libguile/libpath.h"
33 #include "libguile/fports.h"
34 #include "libguile/read.h"
35 #include "libguile/eval.h"
36 #include "libguile/throw.h"
37 #include "libguile/alist.h"
38 #include "libguile/dynwind.h"
39 #include "libguile/root.h"
40 #include "libguile/strings.h"
41 #include "libguile/modules.h"
42 #include "libguile/chars.h"
43 #include "libguile/srfi-13.h"
45 #include "libguile/validate.h"
46 #include "libguile/load.h"
47 #include "libguile/fluids.h"
49 #include "libguile/vm.h" /* for load-compiled/vm */
51 #include <sys/types.h>
56 #endif /* HAVE_UNISTD_H */
60 #endif /* HAVE_PWD_H */
66 #include <stat-time.h>
69 /* Loading a file, given an absolute filename. */
71 /* Hook to run when we load a file, perhaps to announce the fact somewhere.
72 Applied to the full name of the file. */
73 static SCM
*scm_loc_load_hook
;
75 /* The current reader (a fluid). */
76 static SCM the_reader
= SCM_BOOL_F
;
79 SCM_DEFINE (scm_primitive_load
, "primitive-load", 1, 0, 0,
81 "Load the file named @var{filename} and evaluate its contents in\n"
82 "the top-level environment. The load paths are not searched;\n"
83 "@var{filename} must either be a full pathname or be a pathname\n"
84 "relative to the current directory. If the variable\n"
85 "@code{%load-hook} is defined, it should be bound to a procedure\n"
86 "that will be called before any code is loaded. See the\n"
87 "documentation for @code{%load-hook} later in this section.")
88 #define FUNC_NAME s_scm_primitive_load
90 SCM hook
= *scm_loc_load_hook
;
91 SCM ret
= SCM_UNSPECIFIED
;
94 SCM_VALIDATE_STRING (1, filename
);
95 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
96 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
99 if (!scm_is_false (hook
))
100 scm_call_1 (hook
, filename
);
105 port
= scm_open_file (filename
, scm_from_locale_string ("r"));
106 scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE
);
107 scm_i_dynwind_current_load_port (port
);
109 encoding
= scm_i_scan_for_encoding (port
);
111 scm_i_set_port_encoding_x (port
, encoding
);
113 /* The file has no encoding declared. We'll presume UTF-8, like
114 compile-file does. */
115 scm_i_set_port_encoding_x (port
, "UTF-8");
121 /* Lookup and use the current reader to read the next
123 reader
= scm_fluid_ref (the_reader
);
124 if (scm_is_false (reader
))
125 form
= scm_read (port
);
127 form
= scm_call_1 (reader
, port
);
129 if (SCM_EOF_OBJECT_P (form
))
132 ret
= scm_primitive_eval_x (form
);
136 scm_close_port (port
);
143 scm_c_primitive_load (const char *filename
)
145 return scm_primitive_load (scm_from_locale_string (filename
));
149 /* Builtin path to scheme library files. */
150 #ifdef SCM_PKGDATA_DIR
151 SCM_DEFINE (scm_sys_package_data_dir
, "%package-data-dir", 0, 0, 0,
153 "Return the name of the directory where Scheme packages, modules and\n"
154 "libraries are kept. On most Unix systems, this will be\n"
155 "@samp{/usr/local/share/guile}.")
156 #define FUNC_NAME s_scm_sys_package_data_dir
158 return scm_from_locale_string (SCM_PKGDATA_DIR
);
161 #endif /* SCM_PKGDATA_DIR */
163 #ifdef SCM_LIBRARY_DIR
164 SCM_DEFINE (scm_sys_library_dir
, "%library-dir", 0,0,0,
166 "Return the directory where the Guile Scheme library files are installed.\n"
167 "E.g., may return \"/usr/share/guile/1.3.5\".")
168 #define FUNC_NAME s_scm_sys_library_dir
170 return scm_from_locale_string (SCM_LIBRARY_DIR
);
173 #endif /* SCM_LIBRARY_DIR */
176 SCM_DEFINE (scm_sys_site_dir
, "%site-dir", 0,0,0,
178 "Return the directory where users should install Scheme code for use\n"
179 "with this version of Guile.\n\n"
180 "E.g., may return \"/usr/share/guile/site/" SCM_EFFECTIVE_VERSION
"\".")
181 #define FUNC_NAME s_scm_sys_site_dir
183 return scm_from_locale_string (SCM_SITE_DIR
);
186 #endif /* SCM_SITE_DIR */
188 #ifdef SCM_GLOBAL_SITE_DIR
189 SCM_DEFINE (scm_sys_global_site_dir
, "%global-site-dir", 0,0,0,
191 "Return the directory where users should install Scheme code for use\n"
192 "with all versions of Guile.\n\n"
193 "E.g., may return \"/usr/share/guile/site\".")
194 #define FUNC_NAME s_scm_sys_global_site_dir
196 return scm_from_locale_string (SCM_GLOBAL_SITE_DIR
);
199 #endif /* SCM_GLOBAL_SITE_DIR */
203 /* Initializing the load path, and searching it. */
205 /* List of names of directories we search for files to load. */
206 static SCM
*scm_loc_load_path
;
208 /* List of extensions we try adding to the filenames. */
209 static SCM
*scm_loc_load_extensions
;
211 /* Like %load-path and %load-extensions, but for compiled files. */
212 static SCM
*scm_loc_load_compiled_path
;
213 static SCM
*scm_loc_load_compiled_extensions
;
215 /* Whether we should try to auto-compile. */
216 static SCM
*scm_loc_load_should_auto_compile
;
218 /* Whether to treat all auto-compiled files as stale. */
219 static SCM
*scm_loc_fresh_auto_compile
;
221 /* The fallback path for auto-compilation */
222 static SCM
*scm_loc_compile_fallback_path
;
224 /* Ellipsis: "..." */
225 static SCM scm_ellipsis
;
227 SCM_DEFINE (scm_parse_path
, "parse-path", 1, 1, 0,
228 (SCM path
, SCM tail
),
229 "Parse @var{path}, which is expected to be a colon-separated\n"
230 "string, into a list and return the resulting list with\n"
231 "@var{tail} appended. If @var{path} is @code{#f}, @var{tail}\n"
233 #define FUNC_NAME s_scm_parse_path
236 SCM sep
= SCM_MAKE_CHAR (';');
238 SCM sep
= SCM_MAKE_CHAR (':');
241 if (SCM_UNBNDP (tail
))
243 return (scm_is_false (path
)
245 : scm_append_x (scm_list_2 (scm_string_split (path
, sep
), tail
)));
249 SCM_DEFINE (scm_parse_path_with_ellipsis
, "parse-path-with-ellipsis", 2, 0, 0,
250 (SCM path
, SCM base
),
251 "Parse @var{path}, which is expected to be a colon-separated\n"
252 "string, into a list and return the resulting list with\n"
253 "@var{base} (a list) spliced in place of the @code{...} path\n"
254 "component, if present, or else @var{base} is added to the end.\n"
255 "If @var{path} is @code{#f}, @var{base} is returned.")
256 #define FUNC_NAME s_scm_parse_path_with_ellipsis
258 SCM lst
= scm_parse_path (path
, SCM_EOL
);
262 while (!scm_is_null (walk
) &&
263 scm_is_false (scm_equal_p (scm_car (walk
), scm_ellipsis
)))
265 prev
= SCM_CDRLOC (walk
);
268 *prev
= scm_is_null (walk
)
270 : scm_append (scm_list_2 (base
, scm_cdr (walk
)));
276 /* Initialize the global variable %load-path, given the value of the
277 SCM_SITE_DIR and SCM_LIBRARY_DIR preprocessor symbols and the
278 GUILE_LOAD_PATH environment variable. */
280 scm_init_load_path ()
286 #ifdef SCM_LIBRARY_DIR
287 env
= getenv ("GUILE_SYSTEM_PATH");
288 if (env
&& strcmp (env
, "") == 0)
289 /* special-case interpret system-path=="" as meaning no system path instead
293 path
= scm_parse_path (scm_from_locale_string (env
), path
);
295 path
= scm_list_4 (scm_from_locale_string (SCM_LIBRARY_DIR
),
296 scm_from_locale_string (SCM_SITE_DIR
),
297 scm_from_locale_string (SCM_GLOBAL_SITE_DIR
),
298 scm_from_locale_string (SCM_PKGDATA_DIR
));
300 env
= getenv ("GUILE_SYSTEM_COMPILED_PATH");
301 if (env
&& strcmp (env
, "") == 0)
305 cpath
= scm_parse_path (scm_from_locale_string (env
), cpath
);
308 cpath
= scm_list_2 (scm_from_locale_string (SCM_CCACHE_DIR
),
309 scm_from_locale_string (SCM_SITE_CCACHE_DIR
));
312 #endif /* SCM_LIBRARY_DIR */
321 #define FALLBACK_DIR \
322 "guile/ccache/" SCM_EFFECTIVE_VERSION "-" SCM_OBJCODE_MACHINE_VERSION_STRING
324 if ((e
= getenv ("XDG_CACHE_HOME")))
325 snprintf (cachedir
, sizeof(cachedir
), "%s/" FALLBACK_DIR
, e
);
326 else if ((e
= getenv ("HOME")))
327 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
329 else if ((pwd
= getpwuid (getuid ())) && pwd
->pw_dir
)
330 snprintf (cachedir
, sizeof(cachedir
), "%s/.cache/" FALLBACK_DIR
,
332 #endif /* HAVE_GETPWENT */
334 else if ((e
= getenv ("LOCALAPPDATA")))
335 snprintf (cachedir
, sizeof (cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
336 else if ((e
= getenv ("APPDATA")))
337 snprintf (cachedir
, sizeof (cachedir
), "%s/.cache/" FALLBACK_DIR
, e
);
338 #endif /* __MINGW32__ */
343 *scm_loc_compile_fallback_path
= scm_from_locale_string (cachedir
);
346 env
= getenv ("GUILE_LOAD_PATH");
348 path
= scm_parse_path_with_ellipsis (scm_from_locale_string (env
), path
);
350 env
= getenv ("GUILE_LOAD_COMPILED_PATH");
352 cpath
= scm_parse_path_with_ellipsis (scm_from_locale_string (env
), cpath
);
354 *scm_loc_load_path
= path
;
355 *scm_loc_load_compiled_path
= cpath
;
358 SCM scm_listofnullstr
;
360 /* Utility functions for assembling C strings in a buffer.
369 stringbuf_free (void *data
)
371 struct stringbuf
*buf
= (struct stringbuf
*)data
;
376 stringbuf_grow (struct stringbuf
*buf
)
378 size_t ptroff
= buf
->ptr
- buf
->buf
;
380 buf
->buf
= scm_realloc (buf
->buf
, buf
->buf_len
);
381 buf
->ptr
= buf
->buf
+ ptroff
;
385 stringbuf_cat_locale_string (struct stringbuf
*buf
, SCM str
)
387 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
388 size_t len
= scm_to_locale_stringbuf (str
, buf
->ptr
, max_len
);
391 /* buffer is too small, double its size and try again.
393 stringbuf_grow (buf
);
394 stringbuf_cat_locale_string (buf
, str
);
398 /* string fits, terminate it and check for embedded '\0'.
400 buf
->ptr
[len
] = '\0';
401 if (strlen (buf
->ptr
) != len
)
402 scm_misc_error (NULL
,
403 "string contains #\\nul character: ~S",
410 stringbuf_cat (struct stringbuf
*buf
, char *str
)
412 size_t max_len
= buf
->buf_len
- (buf
->ptr
- buf
->buf
) - 1;
413 size_t len
= strlen (str
);
416 /* buffer is too small, double its size and try again.
418 stringbuf_grow (buf
);
419 stringbuf_cat (buf
, str
);
423 /* string fits, copy it into buffer.
425 strcpy (buf
->ptr
, str
);
432 scm_c_string_has_an_ext (char *str
, size_t len
, SCM extensions
)
434 for (; !scm_is_null (extensions
); extensions
= SCM_CDR (extensions
))
439 ext
= scm_to_locale_string (SCM_CAR (extensions
));
440 extlen
= strlen (ext
);
441 match
= (len
> extlen
&& str
[len
- extlen
- 1] == '.'
442 && strncmp (str
+ (len
- extlen
), ext
, extlen
) == 0);
451 #define FILE_NAME_SEPARATOR_STRING "\\"
453 #define FILE_NAME_SEPARATOR_STRING "/"
457 is_file_name_separator (SCM c
)
459 if (c
== SCM_MAKE_CHAR ('/'))
462 if (c
== SCM_MAKE_CHAR ('\\'))
469 is_drive_letter (SCM c
)
472 if (SCM_CHAR (c
) >= 'a' && SCM_CHAR (c
) <= 'z')
474 else if (SCM_CHAR (c
) >= 'A' && SCM_CHAR (c
) <= 'Z')
481 is_absolute_file_name (const char *filename_chars
, size_t filename_len
)
483 if (filename_len
>= 1
484 && is_file_name_separator (SCM_MAKE_CHAR (filename_chars
[0]))
486 /* On Windows, one initial separator indicates a drive-relative
487 path. Two separators indicate a Universal Naming Convention
488 (UNC) path. UNC paths are always absolute. */
490 && is_file_name_separator (SCM_MAKE_CHAR (filename_chars
[1]))
494 if (filename_len
>= 3
495 && is_drive_letter (SCM_MAKE_CHAR (filename_chars
[0]))
496 && filename_chars
[1] == ':'
497 && is_file_name_separator (SCM_MAKE_CHAR (filename_chars
[2])))
502 /* Search PATH for a directory containing a file named FILENAME.
503 The file must be readable, and not a directory.
504 If we find one, return its full pathname; otherwise, return #f.
505 If FILENAME is absolute, return it unchanged.
506 We also fill *stat_buf corresponding to the returned pathname.
507 If given, EXTENSIONS is a list of strings; for each directory
508 in PATH, we search for FILENAME concatenated with each EXTENSION. */
510 search_path (SCM path
, SCM filename
, SCM extensions
, SCM require_exts
,
511 struct stat
*stat_buf
)
513 struct stringbuf buf
;
514 char *filename_chars
;
516 SCM result
= SCM_BOOL_F
;
518 if (scm_ilength (path
) < 0)
519 scm_misc_error ("%search-path", "path is not a proper list: ~a",
521 if (scm_ilength (extensions
) < 0)
522 scm_misc_error ("%search-path", "bad extensions list: ~a",
523 scm_list_1 (extensions
));
525 scm_dynwind_begin (0);
527 filename_chars
= scm_to_locale_string (filename
);
528 filename_len
= strlen (filename_chars
);
529 scm_dynwind_free (filename_chars
);
531 /* If FILENAME is absolute and is still valid, return it unchanged. */
532 if (is_absolute_file_name (filename_chars
, filename_len
))
534 if ((scm_is_false (require_exts
) ||
535 scm_c_string_has_an_ext (filename_chars
, filename_len
,
537 && stat (filename_chars
, stat_buf
) == 0
538 && !(stat_buf
->st_mode
& S_IFDIR
))
543 /* If FILENAME has an extension, don't try to add EXTENSIONS to it. */
547 for (endp
= filename_chars
+ filename_len
- 1;
548 endp
>= filename_chars
;
553 if (scm_is_true (require_exts
) &&
554 !scm_c_string_has_an_ext (filename_chars
, filename_len
,
557 /* This filename has an extension, but not one of the right
561 /* This filename already has an extension, so cancel the
562 list of extensions. */
563 extensions
= SCM_EOL
;
566 else if (is_file_name_separator (SCM_MAKE_CHAR (*endp
)))
567 /* This filename has no extension, so keep the current list
573 /* This simplifies the loop below a bit.
575 if (scm_is_null (extensions
))
576 extensions
= scm_listofnullstr
;
579 buf
.buf
= scm_malloc (buf
.buf_len
);
580 scm_dynwind_unwind_handler (stringbuf_free
, &buf
, SCM_F_WIND_EXPLICITLY
);
582 /* Try every path element.
584 for (; scm_is_pair (path
); path
= SCM_CDR (path
))
586 SCM dir
= SCM_CAR (path
);
591 stringbuf_cat_locale_string (&buf
, dir
);
593 /* Concatenate the path name and the filename. */
595 if (buf
.ptr
> buf
.buf
596 && !is_file_name_separator (SCM_MAKE_CHAR (buf
.ptr
[-1])))
597 stringbuf_cat (&buf
, FILE_NAME_SEPARATOR_STRING
);
599 stringbuf_cat (&buf
, filename_chars
);
600 sans_ext_len
= buf
.ptr
- buf
.buf
;
602 /* Try every extension. */
603 for (exts
= extensions
; scm_is_pair (exts
); exts
= SCM_CDR (exts
))
605 SCM ext
= SCM_CAR (exts
);
607 buf
.ptr
= buf
.buf
+ sans_ext_len
;
608 stringbuf_cat_locale_string (&buf
, ext
);
610 /* If the file exists at all, we should return it. If the
611 file is inaccessible, then that's an error. */
613 if (stat (buf
.buf
, stat_buf
) == 0
614 && ! (stat_buf
->st_mode
& S_IFDIR
))
616 result
= scm_from_locale_string (buf
.buf
);
621 if (!SCM_NULL_OR_NIL_P (exts
))
622 scm_wrong_type_arg_msg (NULL
, 0, extensions
, "proper list");
625 if (!SCM_NULL_OR_NIL_P (path
))
626 scm_wrong_type_arg_msg (NULL
, 0, path
, "proper list");
633 SCM_DEFINE (scm_search_path
, "search-path", 2, 0, 1,
634 (SCM path
, SCM filename
, SCM rest
),
635 "Search @var{path} for a directory containing a file named\n"
636 "@var{filename}. The file must be readable, and not a directory.\n"
637 "If we find one, return its full filename; otherwise, return\n"
638 "@code{#f}. If @var{filename} is absolute, return it unchanged.\n"
639 "If given, @var{rest} is a list of extension strings; for each\n"
640 "directory in @var{path}, we search for @var{filename}\n"
641 "concatenated with each extension.")
642 #define FUNC_NAME s_scm_search_path
644 SCM extensions
, require_exts
;
645 struct stat stat_buf
;
647 if (SCM_UNBNDP (rest
) || scm_is_null (rest
))
649 /* Called either by Scheme code that didn't provide the optional
650 arguments, or C code that used the Guile 1.8 signature (2 required,
651 1 optional arg) and passed '() or nothing as the EXTENSIONS
653 extensions
= SCM_EOL
;
654 require_exts
= SCM_UNDEFINED
;
658 if (scm_is_null (SCM_CAR (rest
)) || scm_is_pair (SCM_CAR (rest
)))
660 /* Called by Scheme code written for 1.9. */
661 extensions
= SCM_CAR (rest
);
662 if (scm_is_null (SCM_CDR (rest
)))
663 require_exts
= SCM_UNDEFINED
;
666 require_exts
= SCM_CADR (rest
);
667 if (SCM_UNLIKELY (!scm_is_null (SCM_CDDR (rest
))))
668 scm_wrong_num_args (scm_from_locale_string (FUNC_NAME
));
673 /* Called by C code that uses the 1.8 signature, i.e., which
674 expects the 3rd argument to be EXTENSIONS. */
676 require_exts
= SCM_UNDEFINED
;
680 if (SCM_UNBNDP (extensions
))
681 extensions
= SCM_EOL
;
683 if (SCM_UNBNDP (require_exts
))
684 require_exts
= SCM_BOOL_F
;
686 return search_path (path
, filename
, extensions
, require_exts
, &stat_buf
);
691 /* Search %load-path for a directory containing a file named FILENAME.
692 The file must be readable, and not a directory.
693 If we find one, return its full filename; otherwise, return #f.
694 If FILENAME is absolute, return it unchanged. */
695 SCM_DEFINE (scm_sys_search_load_path
, "%search-load-path", 1, 0, 0,
697 "Search @var{%load-path} for the file named @var{filename},\n"
698 "which must be readable by the current user. If @var{filename}\n"
699 "is found in the list of paths to search or is an absolute\n"
700 "pathname, return its full pathname. Otherwise, return\n"
701 "@code{#f}. Filenames may have any of the optional extensions\n"
702 "in the @code{%load-extensions} list; @code{%search-load-path}\n"
703 "will try each extension automatically.")
704 #define FUNC_NAME s_scm_sys_search_load_path
706 struct stat stat_buf
;
708 SCM_VALIDATE_STRING (1, filename
);
710 return search_path (*scm_loc_load_path
, filename
, *scm_loc_load_extensions
,
711 SCM_BOOL_F
, &stat_buf
);
716 /* Return true if COMPILED_FILENAME is newer than source file
717 FULL_FILENAME, false otherwise. */
719 compiled_is_fresh (SCM full_filename
, SCM compiled_filename
,
720 struct stat
*stat_source
, struct stat
*stat_compiled
)
722 int compiled_is_newer
;
723 struct timespec source_mtime
, compiled_mtime
;
725 source_mtime
= get_stat_mtime (stat_source
);
726 compiled_mtime
= get_stat_mtime (stat_compiled
);
728 if (source_mtime
.tv_sec
< compiled_mtime
.tv_sec
729 || (source_mtime
.tv_sec
== compiled_mtime
.tv_sec
730 && source_mtime
.tv_nsec
<= compiled_mtime
.tv_nsec
))
731 compiled_is_newer
= 1;
734 compiled_is_newer
= 0;
735 scm_puts (";;; note: source file ", scm_current_error_port ());
736 scm_display (full_filename
, scm_current_error_port ());
737 scm_puts ("\n;;; newer than compiled ", scm_current_error_port ());
738 scm_display (compiled_filename
, scm_current_error_port ());
739 scm_puts ("\n", scm_current_error_port ());
742 return compiled_is_newer
;
745 SCM_KEYWORD (kw_env
, "env");
746 SCM_KEYWORD (kw_opts
, "opts");
748 SCM_SYMBOL (sym_compile_file
, "compile-file");
749 SCM_SYMBOL (sym_auto_compilation_options
, "%auto-compilation-options");
752 do_try_auto_compile (void *data
)
754 SCM source
= PTR2SCM (data
);
755 SCM comp_mod
, compile_file
;
757 scm_puts (";;; compiling ", scm_current_error_port ());
758 scm_display (source
, scm_current_error_port ());
759 scm_newline (scm_current_error_port ());
761 comp_mod
= scm_c_resolve_module ("system base compile");
762 compile_file
= scm_module_variable (comp_mod
, sym_compile_file
);
764 if (scm_is_true (compile_file
))
766 /* Auto-compile in the context of the current module. */
770 opts
= scm_module_variable (scm_the_root_module (),
771 sym_auto_compilation_options
);
772 if (SCM_VARIABLEP (opts
))
773 opts
= SCM_VARIABLE_REF (opts
);
781 args
[4] = scm_current_module ();
783 /* Assume `*current-warning-prefix*' has an appropriate value. */
784 res
= scm_call_n (scm_variable_ref (compile_file
), args
, 5);
786 scm_puts (";;; compiled ", scm_current_error_port ());
787 scm_display (res
, scm_current_error_port ());
788 scm_newline (scm_current_error_port ());
793 scm_puts (";;; it seems ", scm_current_error_port ());
794 scm_display (source
, scm_current_error_port ());
795 scm_puts ("\n;;; is part of the compiler; skipping auto-compilation\n",
796 scm_current_error_port ());
802 auto_compile_catch_handler (void *data
, SCM tag
, SCM throw_args
)
804 SCM source
= PTR2SCM (data
);
807 oport
= scm_open_output_string ();
808 scm_print_exception (oport
, SCM_BOOL_F
, tag
, throw_args
);
810 scm_puts (";;; WARNING: compilation of ", scm_current_warning_port ());
811 scm_display (source
, scm_current_warning_port ());
812 scm_puts (" failed:\n", scm_current_warning_port ());
814 lines
= scm_string_split (scm_get_output_string (oport
),
815 SCM_MAKE_CHAR ('\n'));
816 for (; scm_is_pair (lines
); lines
= scm_cdr (lines
))
817 if (scm_c_string_length (scm_car (lines
)))
819 scm_puts (";;; ", scm_current_warning_port ());
820 scm_display (scm_car (lines
), scm_current_warning_port ());
821 scm_newline (scm_current_warning_port ());
824 scm_close_port (oport
);
829 SCM_DEFINE (scm_sys_warn_auto_compilation_enabled
, "%warn-auto-compilation-enabled", 0, 0, 0,
831 #define FUNC_NAME s_scm_sys_warn_auto_compilation_enabled
833 static int message_shown
= 0;
837 scm_puts (";;; note: auto-compilation is enabled, set GUILE_AUTO_COMPILE=0\n"
838 ";;; or pass the --no-auto-compile argument to disable.\n",
839 scm_current_warning_port ());
843 return SCM_UNSPECIFIED
;
848 scm_try_auto_compile (SCM source
)
850 if (scm_is_false (*scm_loc_load_should_auto_compile
))
853 scm_sys_warn_auto_compilation_enabled ();
854 return scm_c_catch (SCM_BOOL_T
,
857 auto_compile_catch_handler
,
862 /* The auto-compilation code will residualize a .go file in the cache
863 dir: by default, $HOME/.cache/guile/2.0/ccache/PATH.go. This
864 function determines the PATH to use as a key into the compilation
865 cache. See also (system base compile):compiled-file-name. */
867 canonical_suffix (SCM fname
)
871 /* CANON should be absolute. */
872 canon
= scm_canonicalize_path (fname
);
876 size_t len
= scm_c_string_length (canon
);
878 /* On Windows, an absolute file name that doesn't start with a
879 separator starts with a drive component. Transform the drive
880 component to a file name element: c:\foo -> \c\foo. */
882 && is_absolute_file_name (canon
)
883 && !is_file_name_separator (scm_c_string_ref (canon
, 0)))
884 return scm_string_append
885 (scm_list_3 (scm_from_latin1_string (FILE_NAME_SEPARATOR_STRING
),
886 scm_c_substring (canon
, 0, 1),
887 scm_c_substring (canon
, 2, len
)));
894 SCM_DEFINE (scm_primitive_load_path
, "primitive-load-path", 0, 0, 1,
896 "Search @var{%load-path} for the file named @var{filename} and\n"
897 "load it into the top-level environment.\n\n"
898 "If @var{filename} is a relative pathname and is not found in\n"
899 "the list of search paths, one of three things may happen,\n"
900 "depending on the optional second argument,\n"
901 "@var{exception_on_not_found}. If it is @code{#f}, @code{#f}\n"
902 "will be returned. If it is a procedure, it will be called\n"
903 "with no arguments. Otherwise an error is signalled.")
904 #define FUNC_NAME s_scm_primitive_load_path
906 SCM filename
, exception_on_not_found
;
907 SCM full_filename
, compiled_filename
;
908 int compiled_is_fallback
= 0;
909 SCM hook
= *scm_loc_load_hook
;
910 struct stat stat_source
, stat_compiled
;
912 if (scm_is_true (hook
) && scm_is_false (scm_procedure_p (hook
)))
913 SCM_MISC_ERROR ("value of %load-hook is neither a procedure nor #f",
916 if (scm_is_string (args
))
918 /* C code written for 1.8 and earlier expects this function to take a
919 single argument (the file name). */
921 exception_on_not_found
= SCM_UNDEFINED
;
925 /* Starting from 1.9, this function takes 1 required and 1 optional
929 SCM_VALIDATE_LIST_COPYLEN (SCM_ARG1
, args
, len
);
930 if (len
< 1 || len
> 2)
931 scm_error_num_args_subr (FUNC_NAME
);
933 filename
= SCM_CAR (args
);
934 SCM_VALIDATE_STRING (SCM_ARG1
, filename
);
936 exception_on_not_found
= len
> 1 ? SCM_CADR (args
) : SCM_UNDEFINED
;
939 if (SCM_UNBNDP (exception_on_not_found
))
940 exception_on_not_found
= SCM_BOOL_T
;
942 full_filename
= search_path (*scm_loc_load_path
, filename
,
943 *scm_loc_load_extensions
, SCM_BOOL_F
,
947 search_path (*scm_loc_load_compiled_path
, filename
,
948 *scm_loc_load_compiled_extensions
, SCM_BOOL_T
,
951 if (scm_is_false (compiled_filename
)
952 && scm_is_true (full_filename
)
953 && scm_is_true (*scm_loc_compile_fallback_path
)
954 && scm_is_false (*scm_loc_fresh_auto_compile
)
955 && scm_is_pair (*scm_loc_load_compiled_extensions
)
956 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
959 char *fallback_chars
;
961 fallback
= scm_string_append
962 (scm_list_3 (*scm_loc_compile_fallback_path
,
963 canonical_suffix (full_filename
),
964 scm_car (*scm_loc_load_compiled_extensions
)));
966 fallback_chars
= scm_to_locale_string (fallback
);
967 if (stat (fallback_chars
, &stat_compiled
) == 0)
969 compiled_filename
= fallback
;
970 compiled_is_fallback
= 1;
972 free (fallback_chars
);
975 if (scm_is_false (full_filename
) && scm_is_false (compiled_filename
))
977 if (scm_is_true (scm_procedure_p (exception_on_not_found
)))
978 return scm_call_0 (exception_on_not_found
);
979 else if (scm_is_false (exception_on_not_found
))
982 SCM_MISC_ERROR ("Unable to find file ~S in load path",
983 scm_list_1 (filename
));
986 if (!scm_is_false (hook
))
987 scm_call_1 (hook
, (scm_is_true (full_filename
)
988 ? full_filename
: compiled_filename
));
990 if (scm_is_false (full_filename
)
991 || (scm_is_true (compiled_filename
)
992 && compiled_is_fresh (full_filename
, compiled_filename
,
993 &stat_source
, &stat_compiled
)))
994 return scm_load_compiled_with_vm (compiled_filename
);
996 /* Perhaps there was the installed .go that was stale, but our fallback is
997 fresh. Let's try that. Duplicating code, but perhaps that's OK. */
999 if (!compiled_is_fallback
1000 && scm_is_true (*scm_loc_compile_fallback_path
)
1001 && scm_is_false (*scm_loc_fresh_auto_compile
)
1002 && scm_is_pair (*scm_loc_load_compiled_extensions
)
1003 && scm_is_string (scm_car (*scm_loc_load_compiled_extensions
)))
1006 char *fallback_chars
;
1009 fallback
= scm_string_append
1010 (scm_list_3 (*scm_loc_compile_fallback_path
,
1011 canonical_suffix (full_filename
),
1012 scm_car (*scm_loc_load_compiled_extensions
)));
1014 fallback_chars
= scm_to_locale_string (fallback
);
1015 stat_ret
= stat (fallback_chars
, &stat_compiled
);
1016 free (fallback_chars
);
1018 if (stat_ret
== 0 && compiled_is_fresh (full_filename
, fallback
,
1019 &stat_source
, &stat_compiled
))
1021 scm_puts (";;; found fresh local cache at ", scm_current_warning_port ());
1022 scm_display (fallback
, scm_current_warning_port ());
1023 scm_newline (scm_current_warning_port ());
1024 return scm_load_compiled_with_vm (fallback
);
1028 /* Otherwise, we bottom out here. */
1030 SCM freshly_compiled
= scm_try_auto_compile (full_filename
);
1032 if (scm_is_true (freshly_compiled
))
1033 return scm_load_compiled_with_vm (freshly_compiled
);
1035 return scm_primitive_load (full_filename
);
1041 scm_c_primitive_load_path (const char *filename
)
1043 return scm_primitive_load_path (scm_from_locale_string (filename
));
1047 scm_init_eval_in_scheme (void)
1049 SCM eval_scm
, eval_go
;
1050 struct stat stat_source
, stat_compiled
;
1052 eval_scm
= search_path (*scm_loc_load_path
,
1053 scm_from_locale_string ("ice-9/eval.scm"),
1054 SCM_EOL
, SCM_BOOL_F
, &stat_source
);
1055 eval_go
= search_path (*scm_loc_load_compiled_path
,
1056 scm_from_locale_string ("ice-9/eval.go"),
1057 SCM_EOL
, SCM_BOOL_F
, &stat_compiled
);
1059 if (scm_is_true (eval_scm
) && scm_is_true (eval_go
)
1060 && compiled_is_fresh (eval_scm
, eval_go
,
1061 &stat_source
, &stat_compiled
))
1062 scm_load_compiled_with_vm (eval_go
);
1064 /* if we have no eval.go, we shouldn't load any compiled code at all */
1065 *scm_loc_load_compiled_path
= SCM_EOL
;
1069 /* Information about the build environment. */
1071 SCM_VARIABLE_INIT (sys_host_type
, "%host-type",
1072 scm_from_locale_string (HOST_TYPE
));
1075 /* Initialize the scheme variable %guile-build-info, based on data
1076 provided by the Makefile, via libpath.h. */
1080 static struct { char *name
; char *value
; } info
[] = SCM_BUILD_INFO
;
1081 SCM
*loc
= SCM_VARIABLE_LOC (scm_c_define ("%guile-build-info", SCM_EOL
));
1084 for (i
= 0; i
< (sizeof (info
) / sizeof (info
[0])); i
++)
1086 SCM key
= scm_from_locale_symbol (info
[i
].name
);
1087 SCM val
= scm_from_locale_string (info
[i
].value
);
1088 *loc
= scm_acons (key
, val
, *loc
);
1090 #ifdef PACKAGE_PACKAGER
1091 *loc
= scm_acons (scm_from_latin1_symbol ("packager"),
1092 scm_from_latin1_string (PACKAGE_PACKAGER
),
1095 #ifdef PACKAGE_PACKAGER_VERSION
1096 *loc
= scm_acons (scm_from_latin1_symbol ("packager-version"),
1097 scm_from_latin1_string (PACKAGE_PACKAGER_VERSION
),
1100 #ifdef PACKAGE_PACKAGER_BUG_REPORTS
1101 *loc
= scm_acons (scm_from_latin1_symbol ("packager-bug-reports"),
1102 scm_from_latin1_string (PACKAGE_PACKAGER_BUG_REPORTS
),
1111 scm_listofnullstr
= scm_list_1 (scm_nullstr
);
1112 scm_loc_load_path
= SCM_VARIABLE_LOC (scm_c_define ("%load-path", SCM_EOL
));
1113 scm_loc_load_extensions
1114 = SCM_VARIABLE_LOC (scm_c_define ("%load-extensions",
1115 scm_list_2 (scm_from_locale_string (".scm"),
1117 scm_loc_load_compiled_path
1118 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-path", SCM_EOL
));
1119 scm_loc_load_compiled_extensions
1120 = SCM_VARIABLE_LOC (scm_c_define ("%load-compiled-extensions",
1121 scm_list_1 (scm_from_locale_string (".go"))));
1122 scm_loc_load_hook
= SCM_VARIABLE_LOC (scm_c_define ("%load-hook", SCM_BOOL_F
));
1124 scm_loc_compile_fallback_path
1125 = SCM_VARIABLE_LOC (scm_c_define ("%compile-fallback-path", SCM_BOOL_F
));
1126 scm_loc_load_should_auto_compile
1127 = SCM_VARIABLE_LOC (scm_c_define ("%load-should-auto-compile", SCM_BOOL_F
));
1128 scm_loc_fresh_auto_compile
1129 = SCM_VARIABLE_LOC (scm_c_define ("%fresh-auto-compile", SCM_BOOL_F
));
1131 scm_ellipsis
= scm_from_latin1_string ("...");
1133 the_reader
= scm_make_fluid_with_default (SCM_BOOL_F
);
1134 scm_c_define("current-reader", the_reader
);
1136 scm_c_define ("load-compiled",
1137 scm_c_make_gsubr ("load-compiled/vm", 1, 0, 0,
1138 scm_load_compiled_with_vm
));
1142 #include "libguile/load.x"
1146 scm_init_load_should_auto_compile ()
1148 char *auto_compile
= getenv ("GUILE_AUTO_COMPILE");
1150 if (auto_compile
&& strcmp (auto_compile
, "0") == 0)
1152 *scm_loc_load_should_auto_compile
= SCM_BOOL_F
;
1153 *scm_loc_fresh_auto_compile
= SCM_BOOL_F
;
1155 /* Allow "freshen" also. */
1156 else if (auto_compile
&& strncmp (auto_compile
, "fresh", 5) == 0)
1158 *scm_loc_load_should_auto_compile
= SCM_BOOL_T
;
1159 *scm_loc_fresh_auto_compile
= SCM_BOOL_T
;
1163 *scm_loc_load_should_auto_compile
= SCM_BOOL_T
;
1164 *scm_loc_fresh_auto_compile
= SCM_BOOL_F
;