Ruby: ruby.c Source File

Ruby 4.0.6p0 (2026-07-14 revision 03b6d3f8898a28604fe6cb00eae3226b821168f4)

ruby.c
1/**********************************************************************
2
3 ruby.c -
4
5 $Author$
6 created at: Tue Aug 10 12:47:31 JST 1993
7
8 Copyright (C) 1993-2007 Yukihiro Matsumoto
9 Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
10 Copyright (C) 2000 Information-technology Promotion Agency, Japan
11
12**********************************************************************/
13
14#include "ruby/internal/config.h"
15
16#include <ctype.h>
17#include <stdio.h>
18#include <sys/types.h>
19
20#ifdef __CYGWIN__
21# include <windows.h>
22# include <sys/cygwin.h>
23#endif
24
25#if defined(LOAD_RELATIVE) && defined(HAVE_DLADDR)
26# include <dlfcn.h>
27#endif
28
29#ifdef HAVE_UNISTD_H
30# include <unistd.h>
31#endif
32
33#if defined(HAVE_FCNTL_H)
34# include <fcntl.h>
35#elif defined(HAVE_SYS_FCNTL_H)
36# include <sys/fcntl.h>
37#endif
38
39#ifdef HAVE_SYS_PARAM_H
40# include <sys/param.h>
41#endif
42
43#include "dln.h"
44#include "eval_intern.h"
45#include "internal.h"
46#include "internal/cmdlineopt.h"
47#include "internal/cont.h"
48#include "internal/error.h"
49#include "internal/file.h"
50#include "internal/inits.h"
51#include "internal/io.h"
52#include "internal/load.h"
53#include "internal/loadpath.h"
54#include "internal/missing.h"
55#include "internal/object.h"
56#include "internal/thread.h"
57#include "internal/ruby_parser.h"
58#include "internal/variable.h"
59#include "ruby/encoding.h"
60#include "ruby/thread.h"
61#include "ruby/util.h"
62#include "ruby/version.h"
63#include "ruby/internal/error.h"
64
65#define singlebit_only_p(x) !((x) & ((x)-1))
66STATIC_ASSERT(Qnil_1bit_from_Qfalse, singlebit_only_p(Qnil^Qfalse));
67STATIC_ASSERT(Qundef_1bit_from_Qnil, singlebit_only_p(Qundef^Qnil));
68
69#ifndef MAXPATHLEN
70# define MAXPATHLEN 1024
71#endif
72#ifndef O_ACCMODE
73# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
74#endif
75
76void Init_ruby_description(ruby_cmdline_options_t *opt);
77
78#ifndef HAVE_STDLIB_H
79char *getenv();
80#endif
81
82#ifndef DISABLE_RUBYGEMS
83# define DISABLE_RUBYGEMS 0
84#endif
85#if DISABLE_RUBYGEMS
86#define DEFAULT_RUBYGEMS_ENABLED "disabled"
87#else
88#define DEFAULT_RUBYGEMS_ENABLED "enabled"
89#endif
90
91void rb_warning_category_update(unsigned int mask, unsigned int bits);
92
93#define COMMA ,
94#define FEATURE_BIT(bit) (1U << feature_##bit)
95#define EACH_FEATURES(X, SEP) \
96 X(gems) \
97 SEP \
98 X(error_highlight) \
99 SEP \
100 X(did_you_mean) \
101 SEP \
102 X(syntax_suggest) \
103 SEP \
104 X(rubyopt) \
105 SEP \
106 X(frozen_string_literal) \
107 SEP \
108 X(yjit) \
109 SEP \
110 X(zjit) \
111 /* END OF FEATURES */
112#define EACH_DEBUG_FEATURES(X, SEP) \
113 X(frozen_string_literal) \
114 /* END OF DEBUG FEATURES */
115#define AMBIGUOUS_FEATURE_NAMES 0 /* no ambiguous feature names now */
116#define DEFINE_FEATURE(bit) feature_##bit
117#define DEFINE_DEBUG_FEATURE(bit) feature_debug_##bit
118enum feature_flag_bits {
119 EACH_FEATURES(DEFINE_FEATURE, COMMA),
120 DEFINE_FEATURE(frozen_string_literal_set),
121 feature_debug_flag_first,
122#if !USE_YJIT && USE_ZJIT
123 DEFINE_FEATURE(jit) = feature_zjit,
124#else
125 DEFINE_FEATURE(jit) = feature_yjit,
126#endif
127 feature_jit_mask = FEATURE_BIT(yjit) | FEATURE_BIT(zjit),
128
129 feature_debug_flag_begin = feature_debug_flag_first - 1,
130 EACH_DEBUG_FEATURES(DEFINE_DEBUG_FEATURE, COMMA),
131 feature_flag_count
132};
133
134#define MULTI_BITS_P(bits) ((bits) & ((bits) - 1))
135
136#define DEBUG_BIT(bit) (1U << feature_debug_##bit)
137
138#define DUMP_BIT(bit) (1U << dump_##bit)
139#define DEFINE_DUMP(bit) dump_##bit
140#define EACH_DUMPS(X, SEP) \
141 X(version) \
142 SEP \
143 X(copyright) \
144 SEP \
145 X(usage) \
146 SEP \
147 X(help) \
148 SEP \
149 X(yydebug) \
150 SEP \
151 X(syntax) \
152 SEP \
153 X(parsetree) \
154 SEP \
155 X(insns) \
156 /* END OF DUMPS */
157enum dump_flag_bits {
158 dump_version_v,
159 dump_opt_error_tolerant,
160 dump_opt_comment,
161 dump_opt_optimize,
162 EACH_DUMPS(DEFINE_DUMP, COMMA),
163 dump_exit_bits = (DUMP_BIT(yydebug) | DUMP_BIT(syntax) |
164 DUMP_BIT(parsetree) | DUMP_BIT(insns)),
165 dump_optional_bits = (DUMP_BIT(opt_error_tolerant) |
166 DUMP_BIT(opt_comment) |
167 DUMP_BIT(opt_optimize))
168};
169
170static inline void
171rb_feature_set_to(ruby_features_t *feat, unsigned int bit_mask, unsigned int bit_set)
172{
173 feat->mask |= bit_mask;
174 feat->set = (feat->set & ~bit_mask) | bit_set;
175}
176
177#define FEATURE_SET_TO(feat, bit_mask, bit_set) \
178 rb_feature_set_to(&(feat), bit_mask, bit_set)
179#define FEATURE_SET(feat, bits) FEATURE_SET_TO(feat, bits, bits)
180#define FEATURE_SET_RESTORE(feat, save) FEATURE_SET_TO(feat, (save).mask, (save).set & (save).mask)
181#define FEATURE_SET_P(feat, bits) ((feat).set & FEATURE_BIT(bits))
182#define FEATURE_USED_P(feat, bits) ((feat).mask & FEATURE_BIT(bits))
183#define FEATURE_SET_BITS(feat) ((feat).set & (feat).mask)
184
185static void init_ids(ruby_cmdline_options_t *);
186
187#define src_encoding_index GET_VM()->src_encoding_index
188
189enum {
190 COMPILATION_FEATURES = (
191 0
192 | FEATURE_BIT(frozen_string_literal)
193 | FEATURE_BIT(frozen_string_literal_set)
194 | FEATURE_BIT(debug_frozen_string_literal)
195 ),
196 DEFAULT_FEATURES = (
197 (FEATURE_BIT(debug_flag_first)-1)
198#if DISABLE_RUBYGEMS
199 & ~FEATURE_BIT(gems)
200#endif
201 & ~FEATURE_BIT(frozen_string_literal)
202 & ~FEATURE_BIT(frozen_string_literal_set)
203 & ~feature_jit_mask
204 )
205};
206
207#define BACKTRACE_LENGTH_LIMIT_VALID_P(n) ((n) >= -1)
208#define OPT_BACKTRACE_LENGTH_LIMIT_VALID_P(opt) \
209 BACKTRACE_LENGTH_LIMIT_VALID_P((opt)->backtrace_length_limit)
210
211static ruby_cmdline_options_t *
212cmdline_options_init(ruby_cmdline_options_t *opt)
213{
214 MEMZERO(opt, *opt, 1);
215 init_ids(opt);
216 opt->src.enc.index = src_encoding_index;
217 opt->ext.enc.index = -1;
218 opt->intern.enc.index = -1;
219 opt->features.set = DEFAULT_FEATURES;
220#if defined(YJIT_FORCE_ENABLE)
221 opt->features.set |= FEATURE_BIT(yjit);
222#endif
223 opt->dump |= DUMP_BIT(opt_optimize);
224 opt->backtrace_length_limit = LONG_MIN;
225
226 return opt;
227}
228
229static VALUE load_file(VALUE parser, VALUE fname, VALUE f, int script,
230 ruby_cmdline_options_t *opt);
231static VALUE open_load_file(VALUE fname_v, int *xflag);
232static void forbid_setid(const char *, const ruby_cmdline_options_t *);
233#define forbid_setid(s) forbid_setid((s), opt)
234
235static struct {
236 int argc;
237 char **argv;
238} origarg;
239
240static const char esc_standout[] = "\n\033[1;7m";
241static const char esc_bold[] = "\033[1m";
242static const char esc_reset[] = "\033[0m";
243static const char esc_none[] = "";
244#define USAGE_INDENT " " /* macro for concatenation */
245
246static void
247show_usage_part(const char *str, const unsigned int namelen,
248 const char *str2, const unsigned int secondlen,
249 const char *desc,
250 int help, int highlight, unsigned int w, int columns)
251{
252 static const int indent_width = (int)rb_strlen_lit(USAGE_INDENT);
253 const char *sb = highlight ? esc_bold : esc_none;
254 const char *se = highlight ? esc_reset : esc_none;
255 unsigned int desclen = (unsigned int)strcspn(desc, "\n");
256 if (!help && desclen > 0 && strchr(".;:", desc[desclen-1])) --desclen;
257 if (help && (namelen + 1 > w) && /* a padding space */
258 (int)(namelen + secondlen + indent_width) >= columns) {
259 printf(USAGE_INDENT "%s" "%.*s" "%s\n", sb, namelen, str, se);
260 if (secondlen > 0) {
261 const int second_end = secondlen;
262 int n = 0;
263 if (str2[n] == ',') n++;
264 if (str2[n] == ' ') n++;
265 printf(USAGE_INDENT "%s" "%.*s" "%s\n", sb, second_end-n, str2+n, se);
266 }
267 printf("%-*s%.*s\n", w + indent_width, USAGE_INDENT, desclen, desc);
268 }
269 else {
270 const int wrap = help && namelen + secondlen >= w;
271 printf(USAGE_INDENT "%s%.*s%-*.*s%s%-*s%.*s\n", sb, namelen, str,
272 (wrap ? 0 : w - namelen),
273 (help ? secondlen : 0), str2, se,
274 (wrap ? (int)(w + rb_strlen_lit("\n" USAGE_INDENT)) : 0),
275 (wrap ? "\n" USAGE_INDENT : ""),
276 desclen, desc);
277 }
278 if (help) {
279 while (desc[desclen]) {
280 desc += desclen + rb_strlen_lit("\n");
281 desclen = (unsigned int)strcspn(desc, "\n");
282 printf("%-*s%.*s\n", w + indent_width, USAGE_INDENT, desclen, desc);
283 }
284 }
285}
286
287static void
288show_usage_line(const struct ruby_opt_message *m,
289 int help, int highlight, unsigned int w, int columns)
290{
291 const char *str = m->str;
292 const unsigned int namelen = m->namelen, secondlen = m->secondlen;
293 const char *desc = str + namelen + secondlen;
294 show_usage_part(str, namelen - 1, str + namelen, secondlen - 1, desc,
295 help, highlight, w, columns);
296}
297
298void
299ruby_show_usage_line(const char *name, const char *secondary, const char *description,
300 int help, int highlight, unsigned int width, int columns)
301{
302 unsigned int namelen = (unsigned int)strlen(name);
303 unsigned int secondlen = (secondary ? (unsigned int)strlen(secondary) : 0);
304 show_usage_part(name, namelen, secondary, secondlen,
305 description, help, highlight, width, columns);
306}
307
308 RUBY_EXTERN const char ruby_api_version_name[];
309
310static void
311usage(const char *name, int help, int highlight, int columns)
312{
313#define M(shortopt, longopt, desc) RUBY_OPT_MESSAGE(shortopt, longopt, desc)
314
315#if USE_YJIT
316# define DEFAULT_JIT_OPTION "--yjit"
317#elif USE_ZJIT
318# define DEFAULT_JIT_OPTION "--zjit"
319#endif
320
321 /* This message really ought to be max 23 lines.
322 * Removed -h because the user already knows that option. Others? */
323 static const struct ruby_opt_message usage_msg[] = {
324 M("-0[octal]", "", "Set input record separator ($/):\n"
325 "-0 for \\0; -00 for paragraph mode; -0777 for slurp mode."),
326 M("-a", "", "Split each input line ($_) into fields ($F)."),
327 M("-c", "", "Check syntax (no execution)."),
328 M("-Cdirpath", "", "Execute program in specified directory."),
329 M("-d", ", --debug", "Set debugging flag ($DEBUG) and $VERBOSE to true."),
330 M("-e 'code'", "", "Execute given Ruby code; multiple -e allowed."),
331 M("-Eex[:in]", ", --encoding=ex[:in]", "Set default external and internal encodings."),
332 M("-Fpattern", "", "Set input field separator ($;); used with -a."),
333 M("-i[extension]", "", "Set ARGF in-place mode;\n"
334 "create backup files with given extension."),
335 M("-Idirpath", "", "Prepend specified directory to load paths ($LOAD_PATH);\n"
336 "relative paths are expanded; multiple -I are allowed."),
337 M("-l", "", "Set output record separator ($\\) to $/;\n"
338 "used for line-oriented output."),
339 M("-n", "", "Run program in gets loop."),
340 M("-p", "", "Like -n, with printing added."),
341 M("-rlibrary", "", "Require the given library."),
342 M("-s", "", "Define global variables using switches following program path."),
343 M("-S", "", "Search directories found in the PATH environment variable."),
344 M("-v", "", "Print version; set $VERBOSE to true."),
345 M("-w", "", "Synonym for -W1."),
346 M("-W[level=2|:category]", "", "Set warning flag ($-W):\n"
347 "0 for silent; 1 for moderate; 2 for verbose."),
348 M("-x[dirpath]", "", "Execute Ruby code starting from a #!ruby line."),
349#if USE_YJIT || USE_ZJIT
350 M("--jit", "", "Enable the default JIT for the build; same as " DEFAULT_JIT_OPTION "."),
351#endif
352#if USE_YJIT
353 M("--yjit", "", "Enable in-process JIT compiler."),
354#endif
355#if USE_ZJIT
356 M("--zjit", "", "Enable method-based JIT compiler."),
357#endif
358 M("-h", "", "Print this help message; use --help for longer message."),
359 };
360 STATIC_ASSERT(usage_msg_size, numberof(usage_msg) < 26);
361
362 static const struct ruby_opt_message help_msg[] = {
363 M("--backtrace-limit=num", "", "Set backtrace limit."),
364 M("--copyright", "", "Print Ruby copyright."),
365 M("--crash-report=template", "", "Set template for crash report file."),
366 M("--disable=features", "", "Disable features; see list below."),
367 M("--dump=items", "", "Dump items; see list below."),
368 M("--enable=features", "", "Enable features; see list below."),
369 M("--external-encoding=encoding", "", "Set default external encoding."),
370 M("--help", "", "Print long help message; use -h for short message."),
371 M("--internal-encoding=encoding", "", "Set default internal encoding."),
372 M("--parser=parser", "", "Set Ruby parser: parse.y or prism."),
373 M("--verbose", "", "Set $VERBOSE to true; ignore input from $stdin."),
374 M("--version", "", "Print Ruby version."),
375 M("-y", ", --yydebug", "Print parser log; backward compatibility not guaranteed."),
376 };
377 static const struct ruby_opt_message dumps[] = {
378 M("insns", "", "Instruction sequences."),
379 M("yydebug", "", "yydebug of yacc parser generator."),
380 M("parsetree", "", "Abstract syntax tree (AST)."),
381 M("-optimize", "", "Disable optimization (affects insns)."),
382 M("+error-tolerant", "", "Error-tolerant parsing (affects yydebug, parsetree)."),
383 M("+comment", "", "Add comments to AST (affects parsetree with --parser=parse.y)."),
384 };
385 static const struct ruby_opt_message features[] = {
386 M("gems", "", "Rubygems (only for debugging, default: "DEFAULT_RUBYGEMS_ENABLED")."),
387 M("error_highlight", "", "error_highlight (default: "DEFAULT_RUBYGEMS_ENABLED")."),
388 M("did_you_mean", "", "did_you_mean (default: "DEFAULT_RUBYGEMS_ENABLED")."),
389 M("syntax_suggest", "", "syntax_suggest (default: "DEFAULT_RUBYGEMS_ENABLED")."),
390 M("rubyopt", "", "RUBYOPT environment variable (default: enabled)."),
391 M("frozen-string-literal", "", "Freeze all string literals (default: disabled)."),
392#if USE_YJIT
393 M("yjit", "", "In-process JIT compiler (default: disabled)."),
394#endif
395#if USE_ZJIT
396 M("zjit", "", "Method-based JIT compiler (default: disabled)."),
397#endif
398 };
399 static const struct ruby_opt_message warn_categories[] = {
400 M("deprecated", "", "Deprecated features."),
401 M("experimental", "", "Experimental features."),
402 M("performance", "", "Performance issues."),
403 M("strict_unused_block", "", "Warning unused block strictly"),
404 };
405 int i;
406 const char *sb = highlight ? esc_standout+1 : esc_none;
407 const char *se = highlight ? esc_reset : esc_none;
408 const int num = numberof(usage_msg) - (help ? 1 : 0);
409 unsigned int w = (columns > 80 ? (columns - 79) / 2 : 0) + 16;
410#define SHOW(m) show_usage_line(&(m), help, highlight, w, columns)
411
412 printf("%sUsage:%s %s [options] [--] [filepath] [arguments]\n", sb, se, name);
413 for (i = 0; i < num; ++i)
414 SHOW(usage_msg[i]);
415
416 if (!help) return;
417
418 if (highlight) sb = esc_standout;
419
420 for (i = 0; i < numberof(help_msg); ++i)
421 SHOW(help_msg[i]);
422 printf("%s""Dump List:%s\n", sb, se);
423 for (i = 0; i < numberof(dumps); ++i)
424 SHOW(dumps[i]);
425 printf("%s""Features:%s\n", sb, se);
426 for (i = 0; i < numberof(features); ++i)
427 SHOW(features[i]);
428 printf("%s""Warning categories:%s\n", sb, se);
429 for (i = 0; i < numberof(warn_categories); ++i)
430 SHOW(warn_categories[i]);
431#if USE_YJIT
432 printf("%s""YJIT options:%s\n", sb, se);
433 rb_yjit_show_usage(help, highlight, w, columns);
434#endif
435#if USE_ZJIT
436 printf("%s""ZJIT options:%s\n", sb, se);
437 extern void rb_zjit_show_usage(int help, int highlight, unsigned int width, int columns);
438 rb_zjit_show_usage(help, highlight, w, columns);
439#endif
440}
441
442#define rubylib_path_new rb_str_new
443
444static void
445ruby_push_include(const char *path, VALUE (*filter)(VALUE))
446{
447 const char sep = PATH_SEP_CHAR;
448 const char *p, *s;
449 VALUE load_path = rb_root_box()->load_path;
450#ifdef __CYGWIN__
451 char rubylib[FILENAME_MAX];
452 VALUE buf = 0;
453# define is_path_sep(c) ((c) == sep || (c) == ';')
454#else
455# define is_path_sep(c) ((c) == sep)
456#endif
457
458 if (path == 0) return;
459 p = path;
460 while (*p) {
461 long len;
462 while (is_path_sep(*p))
463 p++;
464 if (!*p) break;
465 for (s = p; *s && !is_path_sep(*s); s = CharNext(s));
466 len = s - p;
467#undef is_path_sep
468
469#ifdef __CYGWIN__
470 if (*s) {
471 if (!buf) {
472 buf = rb_str_new(p, len);
473 p = RSTRING_PTR(buf);
474 }
475 else {
476 rb_str_resize(buf, len);
477 p = strncpy(RSTRING_PTR(buf), p, len);
478 }
479 }
480#ifdef HAVE_CYGWIN_CONV_PATH
481#define CONV_TO_POSIX_PATH(p, lib) \
482 cygwin_conv_path(CCP_WIN_A_TO_POSIX|CCP_RELATIVE, (p), (lib), sizeof(lib))
483#else
484# error no cygwin_conv_path
485#endif
486 if (CONV_TO_POSIX_PATH(p, rubylib) == 0) {
487 p = rubylib;
488 len = strlen(p);
489 }
490#endif
491 rb_ary_push(load_path, (*filter)(rubylib_path_new(p, len)));
492 p = s;
493 }
494}
495
496static VALUE
497identical_path(VALUE path)
498{
499 return path;
500}
501
502static VALUE
503locale_path(VALUE path)
504{
505 rb_enc_associate(path, rb_locale_encoding());
506 return path;
507}
508
509void
510ruby_incpush(const char *path)
511{
512 ruby_push_include(path, locale_path);
513}
514
515static VALUE
516expand_include_path(VALUE path)
517{
518 char *p = RSTRING_PTR(path);
519 if (!p)
520 return path;
521 if (*p == '.' && p[1] == '/')
522 return path;
523 return rb_file_expand_path(path, Qnil);
524}
525
526void
527ruby_incpush_expand(const char *path)
528{
529 ruby_push_include(path, expand_include_path);
530}
531
532#undef UTF8_PATH
533#if defined _WIN32 || defined __CYGWIN__
534static HMODULE libruby;
535
536BOOL WINAPI
537DllMain(HINSTANCE dll, DWORD reason, LPVOID reserved)
538{
539 if (reason == DLL_PROCESS_ATTACH)
540 libruby = dll;
541 return TRUE;
542}
543
544HANDLE
545rb_libruby_handle(void)
546{
547 return libruby;
548}
549
550static inline void
551translit_char_bin(char *p, int from, int to)
552{
553 while (*p) {
554 if ((unsigned char)*p == from)
555 *p = to;
556 p++;
557 }
558}
559#endif
560
561#ifdef _WIN32
562# undef chdir
563# define chdir rb_w32_uchdir
564# define UTF8_PATH 1
565#endif
566
567#ifndef UTF8_PATH
568# define UTF8_PATH 0
569#endif
570#if UTF8_PATH
571# define IF_UTF8_PATH(t, f) t
572#else
573# define IF_UTF8_PATH(t, f) f
574#endif
575
576#if UTF8_PATH
577static VALUE
578str_conv_enc(VALUE str, rb_encoding *from, rb_encoding *to)
579{
580 return rb_str_conv_enc_opts(str, from, to,
581 ECONV_UNDEF_REPLACE|ECONV_INVALID_REPLACE,
582 Qnil);
583}
584#else
585# define str_conv_enc(str, from, to) (str)
586#endif
587
588void ruby_init_loadpath(void);
589
590#if defined(LOAD_RELATIVE)
591static VALUE
592runtime_libruby_path(void)
593{
594#if defined _WIN32 || defined __CYGWIN__
595 DWORD ret;
596 DWORD len = 32;
597 VALUE path;
598 VALUE wsopath = rb_str_new(0, len*sizeof(WCHAR));
599 WCHAR *wlibpath;
600 char *libpath;
601
602 while (wlibpath = (WCHAR *)RSTRING_PTR(wsopath),
603 ret = GetModuleFileNameW(libruby, wlibpath, len),
604 (ret == len))
605 {
606 rb_str_modify_expand(wsopath, len*sizeof(WCHAR));
607 rb_str_set_len(wsopath, (len += len)*sizeof(WCHAR));
608 }
609 if (!ret || ret > len) rb_fatal("failed to get module file name");
610#if defined __CYGWIN__
611 {
612 const int win_to_posix = CCP_WIN_W_TO_POSIX | CCP_RELATIVE;
613 size_t newsize = cygwin_conv_path(win_to_posix, wlibpath, 0, 0);
614 if (!newsize) rb_fatal("failed to convert module path to cygwin");
615 path = rb_str_new(0, newsize);
616 libpath = RSTRING_PTR(path);
617 if (cygwin_conv_path(win_to_posix, wlibpath, libpath, newsize)) {
618 rb_str_resize(path, 0);
619 }
620 }
621#else
622 {
623 DWORD i;
624 for (len = ret, i = 0; i < len; ++i) {
625 if (wlibpath[i] == L'\\') {
626 wlibpath[i] = L'/';
627 ret = i+1; /* chop after the last separator */
628 }
629 }
630 }
631 len = WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, NULL, 0, NULL, NULL);
632 path = rb_utf8_str_new(0, len);
633 libpath = RSTRING_PTR(path);
634 WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, libpath, len, NULL, NULL);
635#endif
636 rb_str_resize(wsopath, 0);
637 return path;
638#elif defined(HAVE_DLADDR)
639 Dl_info dli;
640 VALUE fname, path;
641 const void* addr = (void *)(VALUE)expand_include_path;
642
643 if (!dladdr((void *)addr, &dli)) {
644 return rb_str_new(0, 0);
645 }
646#ifdef __linux__
647 else if (origarg.argc > 0 && origarg.argv && dli.dli_fname == origarg.argv[0]) {
648 fname = rb_str_new_cstr("/proc/self/exe");
649 path = rb_readlink(fname, NULL);
650 }
651#endif
652 else {
653 fname = rb_str_new_cstr(dli.dli_fname);
654 path = rb_realpath_internal(Qnil, fname, 1);
655 }
656 rb_str_resize(fname, 0);
657 return path;
658#else
659# error relative load path is not supported on this platform.
660#endif
661}
662#endif
663
664#define INITIAL_LOAD_PATH_MARK rb_intern_const("@gem_prelude_index")
665
666 VALUE ruby_archlibdir_path, ruby_prefix_path;
667
668void
669ruby_init_loadpath(void)
670{
671 VALUE load_path, archlibdir = 0;
672 ID id_initial_load_path_mark;
673 const char *paths = ruby_initial_load_paths;
674
675#if defined LOAD_RELATIVE
676#if !defined ENABLE_MULTIARCH
677# define RUBY_ARCH_PATH ""
678#elif defined RUBY_ARCH
679# define RUBY_ARCH_PATH "/"RUBY_ARCH
680#else
681# define RUBY_ARCH_PATH "/"RUBY_PLATFORM
682#endif
683 char *libpath;
684 VALUE sopath;
685 size_t baselen;
686 const char *p;
687
688 sopath = runtime_libruby_path();
689 libpath = RSTRING_PTR(sopath);
690
691 p = strrchr(libpath, '/');
692 if (p) {
693 static const char libdir[] = "/"
694#ifdef LIBDIR_BASENAME
695 LIBDIR_BASENAME
696#else
697 "lib"
698#endif
699 RUBY_ARCH_PATH;
700 const ptrdiff_t libdir_len = (ptrdiff_t)sizeof(libdir)
701 - rb_strlen_lit(RUBY_ARCH_PATH) - 1;
702 static const char bindir[] = "/bin";
703 const ptrdiff_t bindir_len = (ptrdiff_t)sizeof(bindir) - 1;
704
705 const char *p2 = NULL;
706
707#ifdef ENABLE_MULTIARCH
708 multiarch:
709#endif
710 if (p - libpath >= bindir_len && !STRNCASECMP(p - bindir_len, bindir, bindir_len)) {
711 p -= bindir_len;
712 archlibdir = rb_str_subseq(sopath, 0, p - libpath);
713 rb_str_cat_cstr(archlibdir, libdir);
714 OBJ_FREEZE(archlibdir);
715 }
716 else if (p - libpath >= libdir_len && !strncmp(p - libdir_len, libdir, libdir_len)) {
717 archlibdir = rb_str_subseq(sopath, 0, (p2 ? p2 : p) - libpath);
718 OBJ_FREEZE(archlibdir);
719 p -= libdir_len;
720 }
721#ifdef ENABLE_MULTIARCH
722 else if (p2) {
723 p = p2;
724 }
725 else {
726 p2 = p;
727 p = rb_enc_path_last_separator(libpath, p, rb_ascii8bit_encoding());
728 if (p) goto multiarch;
729 p = p2;
730 }
731#endif
732 baselen = p - libpath;
733 }
734 else {
735 baselen = 0;
736 }
737 rb_str_resize(sopath, baselen);
738 libpath = RSTRING_PTR(sopath);
739#define PREFIX_PATH() sopath
740#define BASEPATH() rb_str_buf_cat(rb_str_buf_new(baselen+len), libpath, baselen)
741#define RUBY_RELATIVE(path, len) rb_str_buf_cat(BASEPATH(), (path), (len))
742#else
743 const size_t exec_prefix_len = strlen(ruby_exec_prefix);
744#define RUBY_RELATIVE(path, len) rubylib_path_new((path), (len))
745#define PREFIX_PATH() RUBY_RELATIVE(ruby_exec_prefix, exec_prefix_len)
746#endif
747 rb_gc_register_address(&ruby_prefix_path);
748 ruby_prefix_path = PREFIX_PATH();
749 OBJ_FREEZE(ruby_prefix_path);
750 if (!archlibdir) archlibdir = ruby_prefix_path;
751 rb_gc_register_address(&ruby_archlibdir_path);
752 ruby_archlibdir_path = archlibdir;
753
754 load_path = rb_root_box()->load_path;
755
756 ruby_push_include(getenv("RUBYLIB"), identical_path);
757
758 id_initial_load_path_mark = INITIAL_LOAD_PATH_MARK;
759 while (*paths) {
760 size_t len = strlen(paths);
761 VALUE path = RUBY_RELATIVE(paths, len);
762 rb_ivar_set(path, id_initial_load_path_mark, path);
763 rb_ary_push(load_path, path);
764 paths += len + 1;
765 }
766}
767
768
769static void
770add_modules(VALUE *req_list, const char *mod)
771{
772 VALUE list = *req_list;
773 VALUE feature;
774
775 if (!list) {
776 *req_list = list = rb_ary_hidden_new(0);
777 }
778 feature = rb_str_cat_cstr(rb_str_tmp_new(0), mod);
779 rb_ary_push(list, feature);
780}
781
782static void
783require_libraries(VALUE *req_list)
784{
785 VALUE list = *req_list;
786 VALUE self = rb_vm_top_self();
787 ID require;
788 rb_encoding *extenc = rb_default_external_encoding();
789
790 CONST_ID(require, "require");
791 while (list && RARRAY_LEN(list) > 0) {
792 VALUE feature = rb_ary_shift(list);
793 rb_enc_associate(feature, extenc);
794 RBASIC_SET_CLASS_RAW(feature, rb_cString);
795 OBJ_FREEZE(feature);
796 rb_funcallv(self, require, 1, &feature);
797 }
798 *req_list = 0;
799}
800
801static void
802require_libraries_in_main_box(VALUE *req_list)
803{
804 const rb_box_t *main_box = rb_main_box();
805 VALUE list = *req_list;
806 ID require;
807 rb_encoding *extenc = rb_default_external_encoding();
808
809 CONST_ID(require, "require");
810 while (list && RARRAY_LEN(list) > 0) {
811 VALUE feature = rb_ary_shift(list);
812 rb_enc_associate(feature, extenc);
813 RBASIC_SET_CLASS_RAW(feature, rb_cString);
814 OBJ_FREEZE(feature);
815 rb_funcallv(main_box->box_object, require, 1, &feature);
816 }
817 *req_list = 0;
818}
819
820static const struct rb_block*
821toplevel_context(rb_binding_t *bind)
822{
823 return &bind->block;
824}
825
826static int
827process_sflag(int sflag)
828{
829 if (sflag > 0) {
830 long n;
831 const VALUE *args;
832 VALUE argv = rb_argv;
833
834 n = RARRAY_LEN(argv);
835 args = RARRAY_CONST_PTR(argv);
836 while (n > 0) {
837 VALUE v = *args++;
838 char *s = StringValuePtr(v);
839 char *p;
840 int hyphen = FALSE;
841
842 if (s[0] != '-')
843 break;
844 n--;
845 if (s[1] == '-' && s[2] == '\0')
846 break;
847
848 v = Qtrue;
849 /* check if valid name before replacing - with _ */
850 for (p = s + 1; *p; p++) {
851 if (*p == '=') {
852 *p++ = '\0';
853 v = rb_str_new2(p);
854 break;
855 }
856 if (*p == '-') {
857 hyphen = TRUE;
858 }
859 else if (*p != '_' && !ISALNUM(*p)) {
860 VALUE name_error[2];
861 name_error[0] =
862 rb_str_new2("invalid name for global variable - ");
863 if (!(p = strchr(p, '='))) {
864 rb_str_cat2(name_error[0], s);
865 }
866 else {
867 rb_str_cat(name_error[0], s, p - s);
868 }
869 name_error[1] = args[-1];
870 rb_exc_raise(rb_class_new_instance(2, name_error, rb_eNameError));
871 }
872 }
873 s[0] = '$';
874 if (hyphen) {
875 for (p = s + 1; *p; ++p) {
876 if (*p == '-')
877 *p = '_';
878 }
879 }
880 rb_gv_set(s, v);
881 }
882 n = RARRAY_LEN(argv) - n;
883 while (n--) {
884 rb_ary_shift(argv);
885 }
886 return -1;
887 }
888 return sflag;
889}
890
891static long proc_options(long argc, char **argv, ruby_cmdline_options_t *opt, int envopt);
892
893static void
894moreswitches(const char *s, ruby_cmdline_options_t *opt, int envopt)
895{
896 long argc, i, len;
897 char **argv, *p;
898 const char *ap = 0;
899 VALUE argstr, argary;
900 void *ptr;
901
902 VALUE src_enc_name = opt->src.enc.name;
903 VALUE ext_enc_name = opt->ext.enc.name;
904 VALUE int_enc_name = opt->intern.enc.name;
905 ruby_features_t feat = opt->features;
906 ruby_features_t warn = opt->warn;
907 long backtrace_length_limit = opt->backtrace_length_limit;
908 const char *crash_report = opt->crash_report;
909
910 while (ISSPACE(*s)) s++;
911 if (!*s) return;
912
913 opt->src.enc.name = opt->ext.enc.name = opt->intern.enc.name = 0;
914
915 const int hyphen = *s != '-';
916 argstr = rb_str_tmp_new((len = strlen(s)) + hyphen);
917 argary = rb_str_tmp_new(0);
918
919 p = RSTRING_PTR(argstr);
920 if (hyphen) *p = '-';
921 memcpy(p + hyphen, s, len + 1);
922 ap = 0;
923 rb_str_cat(argary, (char *)&ap, sizeof(ap));
924 while (*p) {
925 ap = p;
926 rb_str_cat(argary, (char *)&ap, sizeof(ap));
927 while (*p && !ISSPACE(*p)) ++p;
928 if (!*p) break;
929 *p++ = '\0';
930 while (ISSPACE(*p)) ++p;
931 }
932 argc = RSTRING_LEN(argary) / sizeof(ap);
933 ap = 0;
934 rb_str_cat(argary, (char *)&ap, sizeof(ap));
935
936 VALUE ptr_obj;
937 argv = ptr = RB_ALLOCV_N(char *, ptr_obj, argc);
938 MEMMOVE(argv, RSTRING_PTR(argary), char *, argc);
939
940 while ((i = proc_options(argc, argv, opt, envopt)) > 1 && envopt && (argc -= i) > 0) {
941 argv += i;
942 if (**argv != '-') {
943 *--*argv = '-';
944 }
945 if ((*argv)[1]) {
946 ++argc;
947 --argv;
948 }
949 }
950
951 if (src_enc_name) {
952 opt->src.enc.name = src_enc_name;
953 }
954 if (ext_enc_name) {
955 opt->ext.enc.name = ext_enc_name;
956 }
957 if (int_enc_name) {
958 opt->intern.enc.name = int_enc_name;
959 }
960 FEATURE_SET_RESTORE(opt->features, feat);
961 FEATURE_SET_RESTORE(opt->warn, warn);
962 if (BACKTRACE_LENGTH_LIMIT_VALID_P(backtrace_length_limit)) {
963 opt->backtrace_length_limit = backtrace_length_limit;
964 }
965 if (crash_report) {
966 opt->crash_report = crash_report;
967 }
968
969 RB_ALLOCV_END(ptr_obj);
970
971 /* get rid of GC */
972 rb_str_resize(argary, 0);
973 rb_str_resize(argstr, 0);
974}
975
976static int
977name_match_p(const char *name, const char *str, size_t len)
978{
979 if (len == 0) return 0;
980 while (1) {
981 while (TOLOWER(*str) == *name) {
982 if (!--len) return 1;
983 ++name;
984 ++str;
985 }
986 if (*str != '-' && *str != '_') return 0;
987 while (ISALNUM(*name)) name++;
988 if (*name != '-' && *name != '_') return 0;
989 if (!*++name) return 1;
990 ++str;
991 if (--len == 0) return 1;
992 }
993}
994
995#define NAME_MATCH_P(name, str, len) \
996 ((len) < (int)sizeof(name) && name_match_p((name), (str), (len)))
997
998#define UNSET_WHEN(name, bit, str, len) \
999 if (NAME_MATCH_P((name), (str), (len))) { \
1000 *(unsigned int *)arg &= ~(bit); \
1001 return; \
1002 }
1003
1004#define SET_WHEN(name, bit, str, len) \
1005 if (NAME_MATCH_P((name), (str), (len))) { \
1006 *(unsigned int *)arg |= (bit); \
1007 return; \
1008 }
1009
1010#define LITERAL_NAME_ELEMENT(name) #name
1011
1012static void
1013feature_option(const char *str, int len, void *arg, const unsigned int enable)
1014{
1015 static const char list[] = EACH_FEATURES(LITERAL_NAME_ELEMENT, ", ");
1016 ruby_features_t *argp = arg;
1017 unsigned int mask = ~0U;
1018 unsigned int set = 0U;
1019#if AMBIGUOUS_FEATURE_NAMES
1020 int matched = 0;
1021# define FEATURE_FOUND ++matched
1022#else
1023# define FEATURE_FOUND goto found
1024#endif
1025#define SET_FEATURE(bit) \
1026 if (NAME_MATCH_P(#bit, str, len)) {set |= mask = FEATURE_BIT(bit); FEATURE_FOUND;}
1027 EACH_FEATURES(SET_FEATURE, ;);
1028 if (NAME_MATCH_P("jit", str, len)) { // This allows you to cancel --jit
1029 set |= mask = FEATURE_BIT(jit);
1030 goto found;
1031 }
1032 if (NAME_MATCH_P("all", str, len)) {
1033 // We enable only one JIT for --enable=all.
1034 mask &= ~feature_jit_mask | FEATURE_BIT(jit);
1035 goto found;
1036 }
1037#if AMBIGUOUS_FEATURE_NAMES
1038 if (matched == 1) goto found;
1039 if (matched > 1) {
1040 VALUE mesg = rb_sprintf("ambiguous feature: '%.*s' (", len, str);
1041#define ADD_FEATURE_NAME(bit) \
1042 if (FEATURE_BIT(bit) & set) { \
1043 rb_str_cat_cstr(mesg, #bit); \
1044 if (--matched) rb_str_cat_cstr(mesg, ", "); \
1045 }
1046 EACH_FEATURES(ADD_FEATURE_NAME, ;);
1047 rb_str_cat_cstr(mesg, ")");
1048 rb_exc_raise(rb_exc_new_str(rb_eRuntimeError, mesg));
1049#undef ADD_FEATURE_NAME
1050 }
1051#else
1052 (void)set;
1053#endif
1054 rb_warn("unknown argument for --%s: '%.*s'",
1055 enable ? "enable" : "disable", len, str);
1056 rb_warn("features are [%.*s].", (int)strlen(list), list);
1057 return;
1058
1059 found:
1060 FEATURE_SET_TO(*argp, mask, (mask & enable));
1061 if (NAME_MATCH_P("frozen_string_literal", str, len)) {
1062 FEATURE_SET_TO(*argp, FEATURE_BIT(frozen_string_literal_set), FEATURE_BIT(frozen_string_literal_set));
1063 }
1064 return;
1065}
1066
1067static void
1068enable_option(const char *str, int len, void *arg)
1069{
1070 feature_option(str, len, arg, ~0U);
1071}
1072
1073static void
1074disable_option(const char *str, int len, void *arg)
1075{
1076 feature_option(str, len, arg, 0U);
1077}
1078
1079 RUBY_EXTERN const int ruby_patchlevel;
1080int ruby_env_debug_option(const char *str, int len, void *arg);
1081
1082static void
1083debug_option(const char *str, int len, void *arg)
1084{
1085 static const char list[] = EACH_DEBUG_FEATURES(LITERAL_NAME_ELEMENT, ", ");
1086 ruby_features_t *argp = arg;
1087#define SET_WHEN_DEBUG(bit) \
1088 if (NAME_MATCH_P(#bit, str, len)) { \
1089 FEATURE_SET(*argp, DEBUG_BIT(bit)); \
1090 return; \
1091 }
1092 EACH_DEBUG_FEATURES(SET_WHEN_DEBUG, ;);
1093#ifdef RUBY_DEVEL
1094 if (ruby_patchlevel < 0 && ruby_env_debug_option(str, len, 0)) return;
1095#endif
1096 rb_warn("unknown argument for --debug: '%.*s'", len, str);
1097 rb_warn("debug features are [%.*s].", (int)strlen(list), list);
1098}
1099
1100static int
1101memtermspn(const char *str, char term, int len)
1102{
1103 RUBY_ASSERT(len >= 0);
1104 if (len <= 0) return 0;
1105 const char *next = memchr(str, term, len);
1106 return next ? (int)(next - str) : len;
1107}
1108
1109static const char additional_opt_sep = '+';
1110
1111static unsigned int
1112dump_additional_option_flag(const char *str, int len, unsigned int bits, bool set)
1113{
1114#define SET_DUMP_OPT(bit) if (NAME_MATCH_P(#bit, str, len)) { \
1115 return set ? (bits | DUMP_BIT(opt_ ## bit)) : (bits & ~DUMP_BIT(opt_ ## bit)); \
1116 }
1117 SET_DUMP_OPT(error_tolerant);
1118 SET_DUMP_OPT(comment);
1119 SET_DUMP_OPT(optimize);
1120#undef SET_DUMP_OPT
1121 rb_warn("don't know how to dump with%s '%.*s'", set ? "" : "out", len, str);
1122 return bits;
1123}
1124
1125static unsigned int
1126dump_additional_option(const char *str, int len, unsigned int bits)
1127{
1128 int w;
1129 for (; len-- > 0 && *str++ == additional_opt_sep; len -= w, str += w) {
1130 w = memtermspn(str, additional_opt_sep, len);
1131 bool set = true;
1132 if (*str == '-' || *str == '+') {
1133 set = *str++ == '+';
1134 --w;
1135 }
1136 else {
1137 int n = memtermspn(str, '-', w);
1138 if (str[n] == '-') {
1139 if (NAME_MATCH_P("with", str, n)) {
1140 str += n;
1141 w -= n;
1142 }
1143 else if (NAME_MATCH_P("without", str, n)) {
1144 set = false;
1145 str += n;
1146 w -= n;
1147 }
1148 }
1149 }
1150 bits = dump_additional_option_flag(str, w, bits, set);
1151 }
1152 return bits;
1153}
1154
1155static void
1156dump_option(const char *str, int len, void *arg)
1157{
1158 static const char list[] = EACH_DUMPS(LITERAL_NAME_ELEMENT, ", ");
1159 unsigned int *bits_ptr = (unsigned int *)arg;
1160 if (*str == '+' || *str == '-') {
1161 bool set = *str++ == '+';
1162 *bits_ptr = dump_additional_option_flag(str, --len, *bits_ptr, set);
1163 return;
1164 }
1165 int w = memtermspn(str, additional_opt_sep, len);
1166
1167#define SET_WHEN_DUMP(bit) \
1168 if (NAME_MATCH_P(#bit "-", (str), (w))) { \
1169 *bits_ptr = dump_additional_option(str + w, len - w, *bits_ptr | DUMP_BIT(bit)); \
1170 return; \
1171 }
1172 EACH_DUMPS(SET_WHEN_DUMP, ;);
1173 rb_warn("don't know how to dump '%.*s',", len, str);
1174 rb_warn("but only [%.*s].", (int)strlen(list), list);
1175}
1176
1177static void
1178set_option_encoding_once(const char *type, VALUE *name, const char *e, long elen)
1179{
1180 VALUE ename;
1181
1182 if (!elen) elen = strlen(e);
1183 ename = rb_str_new(e, elen);
1184
1185 if (*name &&
1186 rb_funcall(ename, rb_intern("casecmp"), 1, *name) != INT2FIX(0)) {
1187 rb_raise(rb_eRuntimeError,
1188 "%s already set to %"PRIsVALUE, type, *name);
1189 }
1190 *name = ename;
1191}
1192
1193#define set_internal_encoding_once(opt, e, elen) \
1194 set_option_encoding_once("default_internal", &(opt)->intern.enc.name, (e), (elen))
1195#define set_external_encoding_once(opt, e, elen) \
1196 set_option_encoding_once("default_external", &(opt)->ext.enc.name, (e), (elen))
1197#define set_source_encoding_once(opt, e, elen) \
1198 set_option_encoding_once("source", &(opt)->src.enc.name, (e), (elen))
1199
1200#define yjit_opt_match_noarg(s, l, name) \
1201 opt_match(s, l, name) && (*(s) ? (rb_warn("argument to --yjit-" name " is ignored"), 1) : 1)
1202#define yjit_opt_match_arg(s, l, name) \
1203 opt_match(s, l, name) && (*(s) && *(s+1) ? 1 : (rb_raise(rb_eRuntimeError, "--yjit-" name " needs an argument"), 0))
1204
1205#if USE_YJIT
1206static bool
1207setup_yjit_options(const char *s)
1208{
1209 // The option parsing is done in yjit/src/options.rs
1210 bool rb_yjit_parse_option(const char* s);
1211 bool success = rb_yjit_parse_option(s);
1212
1213 if (success) {
1214 return true;
1215 }
1216
1217 rb_raise(
1218 rb_eRuntimeError,
1219 "invalid YJIT option '%s' (--help will show valid yjit options)",
1220 s
1221 );
1222}
1223#endif
1224
1225#if USE_ZJIT
1226static void
1227setup_zjit_options(const char *s)
1228{
1229 // The option parsing is done in zjit/src/options.rs
1230 extern bool rb_zjit_parse_option(const char *s);
1231
1232 if (!rb_zjit_parse_option(s)) {
1233 rb_raise(rb_eRuntimeError, "invalid ZJIT option '%s' (--help will show valid zjit options)", s);
1234 }
1235}
1236#endif
1237
1238/*
1239 * Following proc_*_option functions are tree kinds:
1240 *
1241 * - with a required argument, takes also `argc` and `argv`, and
1242 * returns the number of consumed argv including the option itself.
1243 *
1244 * - with a mandatory argument just after the option.
1245 *
1246 * - no required argument, this returns the address of
1247 * the next character after the last consumed character.
1248 */
1249
1250/* optional */
1251static const char *
1252proc_W_option(ruby_cmdline_options_t *opt, const char *s, int *warning)
1253{
1254 if (s[1] == ':') {
1255 unsigned int bits = 0;
1256 static const char no_prefix[] = "no-";
1257 int enable = strncmp(s += 2, no_prefix, sizeof(no_prefix)-1) != 0;
1258 if (!enable) s += sizeof(no_prefix)-1;
1259 size_t len = strlen(s);
1260 if (NAME_MATCH_P("deprecated", s, len)) {
1261 bits = 1U << RB_WARN_CATEGORY_DEPRECATED;
1262 }
1263 else if (NAME_MATCH_P("experimental", s, len)) {
1264 bits = 1U << RB_WARN_CATEGORY_EXPERIMENTAL;
1265 }
1266 else if (NAME_MATCH_P("performance", s, len)) {
1267 bits = 1U << RB_WARN_CATEGORY_PERFORMANCE;
1268 }
1269 else if (NAME_MATCH_P("strict_unused_block", s, len)) {
1270 bits = 1U << RB_WARN_CATEGORY_STRICT_UNUSED_BLOCK;
1271 }
1272 else {
1273 rb_warn("unknown warning category: '%s'", s);
1274 }
1275 if (bits) FEATURE_SET_TO(opt->warn, bits, enable ? bits : 0);
1276 return 0;
1277 }
1278 else {
1279 size_t numlen;
1280 int v = 2; /* -W as -W2 */
1281
1282 if (*++s) {
1283 v = scan_oct(s, 1, &numlen);
1284 if (numlen == 0)
1285 v = 2;
1286 s += numlen;
1287 }
1288 if (!opt->warning) {
1289 switch (v) {
1290 case 0:
1291 ruby_verbose = Qnil;
1292 break;
1293 case 1:
1294 ruby_verbose = Qfalse;
1295 break;
1296 default:
1297 ruby_verbose = Qtrue;
1298 break;
1299 }
1300 }
1301 *warning = 1;
1302 switch (v) {
1303 case 0:
1304 FEATURE_SET_TO(opt->warn, RB_WARN_CATEGORY_DEFAULT_BITS, 0);
1305 break;
1306 case 1:
1307 FEATURE_SET_TO(opt->warn, 1U << RB_WARN_CATEGORY_DEPRECATED, 0);
1308 break;
1309 default:
1310 FEATURE_SET(opt->warn, RB_WARN_CATEGORY_DEFAULT_BITS);
1311 break;
1312 }
1313 return s;
1314 }
1315}
1316
1317/* required */
1318static long
1319proc_e_option(ruby_cmdline_options_t *opt, const char *s, long argc, char **argv)
1320{
1321 long n = 1;
1322 forbid_setid("-e");
1323 if (!*++s) {
1324 if (!--argc)
1325 rb_raise(rb_eRuntimeError, "no code specified for -e");
1326 s = *++argv;
1327 n++;
1328 }
1329 if (!opt->e_script) {
1330 opt->e_script = rb_str_new(0, 0);
1331 if (opt->script == 0)
1332 opt->script = "-e";
1333 }
1334 rb_str_cat2(opt->e_script, s);
1335 rb_str_cat2(opt->e_script, "\n");
1336 return n;
1337}
1338
1339/* optional */
1340static const char *
1341proc_K_option(ruby_cmdline_options_t *opt, const char *s)
1342{
1343 if (*++s) {
1344 const char *enc_name = 0;
1345 switch (*s) {
1346 case 'E': case 'e':
1347 enc_name = "EUC-JP";
1348 break;
1349 case 'S': case 's':
1350 enc_name = "Windows-31J";
1351 break;
1352 case 'U': case 'u':
1353 enc_name = "UTF-8";
1354 break;
1355 case 'N': case 'n': case 'A': case 'a':
1356 enc_name = "ASCII-8BIT";
1357 break;
1358 }
1359 if (enc_name) {
1360 opt->src.enc.name = rb_str_new2(enc_name);
1361 if (!opt->ext.enc.name)
1362 opt->ext.enc.name = opt->src.enc.name;
1363 }
1364 s++;
1365 }
1366 return s;
1367}
1368
1369/* optional */
1370static const char *
1371proc_0_option(ruby_cmdline_options_t *opt, const char *s)
1372{
1373 size_t numlen;
1374 int v;
1375 char c;
1376
1377 v = scan_oct(s, 4, &numlen);
1378 s += numlen;
1379 if (v > 0377)
1380 rb_rs = Qnil;
1381 else if (v == 0 && numlen >= 2) {
1382 rb_rs = rb_fstring_lit("");
1383 }
1384 else {
1385 c = v & 0xff;
1386 rb_rs = rb_str_freeze(rb_str_new(&c, 1));
1387 }
1388 return s;
1389}
1390
1391/* mandatory */
1392static void
1393proc_encoding_option(ruby_cmdline_options_t *opt, const char *s, const char *opt_name)
1394{
1395 char *p;
1396# define set_encoding_part(type) \
1397 if (!(p = strchr(s, ':'))) { \
1398 set_##type##_encoding_once(opt, s, 0); \
1399 return; \
1400 } \
1401 else if (p > s) { \
1402 set_##type##_encoding_once(opt, s, p-s); \
1403 }
1404 set_encoding_part(external);
1405 if (!*(s = ++p)) return;
1406 set_encoding_part(internal);
1407 if (!*(s = ++p)) return;
1408#if defined ALLOW_DEFAULT_SOURCE_ENCODING && ALLOW_DEFAULT_SOURCE_ENCODING
1409 set_encoding_part(source);
1410 if (!*(s = ++p)) return;
1411#endif
1412 rb_raise(rb_eRuntimeError, "extra argument for %s: %s", opt_name, s);
1413# undef set_encoding_part
1414 UNREACHABLE;
1415}
1416
1417static long
1418proc_long_options(ruby_cmdline_options_t *opt, const char *s, long argc, char **argv, int envopt)
1419{
1420 size_t n;
1421 long argc0 = argc;
1422# define is_option_end(c, allow_hyphen) \
1423 (!(c) || ((allow_hyphen) && (c) == '-') || (c) == '=')
1424# define check_envopt(name, allow_envopt) \
1425 (((allow_envopt) || !envopt) ? (void)0 : \
1426 rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: --" name))
1427# define need_argument(name, s, needs_arg, next_arg) \
1428 ((*(s) ? !*++(s) : (next_arg) && (argc <= 1 || !((s) = argv[1]) || (--argc, ++argv, 0))) && (needs_arg) ? \
1429 rb_raise(rb_eRuntimeError, "missing argument for --" name) \
1430 : (void)0)
1431# define is_option_with_arg(name, allow_hyphen, allow_envopt) \
1432 is_option_with_optarg(name, allow_hyphen, allow_envopt, Qtrue, Qtrue)
1433# define is_option_with_optarg(name, allow_hyphen, allow_envopt, needs_arg, next_arg) \
1434 (strncmp((name), s, n = sizeof(name) - 1) == 0 && is_option_end(s[n], (allow_hyphen)) && \
1435 (s[n] != '-' || (s[n] && s[n+1])) ? \
1436 (check_envopt(name, (allow_envopt)), s += n, \
1437 need_argument(name, s, needs_arg, next_arg), 1) : 0)
1438
1439 if (strcmp("copyright", s) == 0) {
1440 if (envopt) goto noenvopt_long;
1441 opt->dump |= DUMP_BIT(copyright);
1442 }
1443 else if (is_option_with_optarg("debug", Qtrue, Qtrue, Qfalse, Qfalse)) {
1444 if (s && *s) {
1445 ruby_each_words(s, debug_option, &opt->features);
1446 }
1447 else {
1448 ruby_debug = Qtrue;
1449 ruby_verbose = Qtrue;
1450 }
1451 }
1452 else if (is_option_with_arg("enable", Qtrue, Qtrue)) {
1453 ruby_each_words(s, enable_option, &opt->features);
1454 }
1455 else if (is_option_with_arg("disable", Qtrue, Qtrue)) {
1456 ruby_each_words(s, disable_option, &opt->features);
1457 }
1458 else if (is_option_with_arg("encoding", Qfalse, Qtrue)) {
1459 proc_encoding_option(opt, s, "--encoding");
1460 }
1461 else if (is_option_with_arg("internal-encoding", Qfalse, Qtrue)) {
1462 set_internal_encoding_once(opt, s, 0);
1463 }
1464 else if (is_option_with_arg("external-encoding", Qfalse, Qtrue)) {
1465 set_external_encoding_once(opt, s, 0);
1466 }
1467 else if (is_option_with_arg("parser", Qfalse, Qtrue)) {
1468 if (strcmp("prism", s) == 0) {
1469 rb_ruby_default_parser_set(RB_DEFAULT_PARSER_PRISM);
1470 }
1471 else if (strcmp("parse.y", s) == 0) {
1472 rb_ruby_default_parser_set(RB_DEFAULT_PARSER_PARSE_Y);
1473 }
1474 else {
1475 rb_raise(rb_eRuntimeError, "unknown parser %s", s);
1476 }
1477 }
1478#if defined ALLOW_DEFAULT_SOURCE_ENCODING && ALLOW_DEFAULT_SOURCE_ENCODING
1479 else if (is_option_with_arg("source-encoding", Qfalse, Qtrue)) {
1480 set_source_encoding_once(opt, s, 0);
1481 }
1482#endif
1483 else if (strcmp("version", s) == 0) {
1484 if (envopt) goto noenvopt_long;
1485 opt->dump |= DUMP_BIT(version);
1486 }
1487 else if (strcmp("verbose", s) == 0) {
1488 opt->verbose = 1;
1489 ruby_verbose = Qtrue;
1490 }
1491 else if (strcmp("jit", s) == 0) {
1492#if USE_YJIT || USE_ZJIT
1493 FEATURE_SET(opt->features, FEATURE_BIT(jit));
1494#else
1495 rb_warn("Ruby was built without JIT support");
1496#endif
1497 }
1498 else if (is_option_with_optarg("yjit", '-', true, false, false)) {
1499#if USE_YJIT
1500 FEATURE_SET(opt->features, FEATURE_BIT(yjit));
1501 setup_yjit_options(s);
1502#else
1503 rb_warn("Ruby was built without YJIT support."
1504 " You may need to install rustc to build Ruby with YJIT.");
1505#endif
1506 }
1507 else if (is_option_with_optarg("zjit", '-', true, false, false)) {
1508#if USE_ZJIT
1509 FEATURE_SET(opt->features, FEATURE_BIT(zjit));
1510 setup_zjit_options(s);
1511#else
1512 rb_warn("Ruby was built without ZJIT support."
1513 " You may need to install rustc to build Ruby with ZJIT.");
1514#endif
1515 }
1516 else if (strcmp("yydebug", s) == 0) {
1517 if (envopt) goto noenvopt_long;
1518 opt->dump |= DUMP_BIT(yydebug);
1519 }
1520 else if (is_option_with_arg("dump", Qfalse, Qfalse)) {
1521 ruby_each_words(s, dump_option, &opt->dump);
1522 }
1523 else if (strcmp("help", s) == 0) {
1524 if (envopt) goto noenvopt_long;
1525 opt->dump |= DUMP_BIT(help);
1526 return 0;
1527 }
1528 else if (is_option_with_arg("backtrace-limit", Qfalse, Qtrue)) {
1529 char *e;
1530 long n = strtol(s, &e, 10);
1531 if (errno == ERANGE || !BACKTRACE_LENGTH_LIMIT_VALID_P(n) || *e) {
1532 rb_raise(rb_eRuntimeError, "wrong limit for backtrace length");
1533 }
1534 else {
1535 opt->backtrace_length_limit = n;
1536 }
1537 }
1538 else if (is_option_with_arg("crash-report", true, true)) {
1539 opt->crash_report = s;
1540 }
1541 else {
1542 rb_raise(rb_eRuntimeError,
1543 "invalid option --%s (-h will show valid options)", s);
1544 }
1545 return argc0 - argc + 1;
1546
1547 noenvopt_long:
1548 rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: --%s", s);
1549# undef is_option_end
1550# undef check_envopt
1551# undef need_argument
1552# undef is_option_with_arg
1553# undef is_option_with_optarg
1554 UNREACHABLE_RETURN(0);
1555}
1556
1557static long
1558proc_options(long argc, char **argv, ruby_cmdline_options_t *opt, int envopt)
1559{
1560 long n, argc0 = argc;
1561 const char *s;
1562 int warning = opt->warning;
1563
1564 if (argc <= 0 || !argv)
1565 return 0;
1566
1567 for (argc--, argv++; argc > 0; argc--, argv++) {
1568 const char *const arg = argv[0];
1569 if (!arg || arg[0] != '-' || !arg[1])
1570 break;
1571
1572 s = arg + 1;
1573 reswitch:
1574 switch (*s) {
1575 case 'a':
1576 if (envopt) goto noenvopt;
1577 opt->do_split = TRUE;
1578 s++;
1579 goto reswitch;
1580
1581 case 'p':
1582 if (envopt) goto noenvopt;
1583 opt->do_print = TRUE;
1584 /* through */
1585 case 'n':
1586 if (envopt) goto noenvopt;
1587 opt->do_loop = TRUE;
1588 s++;
1589 goto reswitch;
1590
1591 case 'd':
1592 ruby_debug = Qtrue;
1593 ruby_verbose = Qtrue;
1594 s++;
1595 goto reswitch;
1596
1597 case 'y':
1598 if (envopt) goto noenvopt;
1599 opt->dump |= DUMP_BIT(yydebug);
1600 s++;
1601 goto reswitch;
1602
1603 case 'v':
1604 if (opt->verbose) {
1605 s++;
1606 goto reswitch;
1607 }
1608 opt->dump |= DUMP_BIT(version_v);
1609 opt->verbose = 1;
1610 case 'w':
1611 if (!opt->warning) {
1612 warning = 1;
1613 ruby_verbose = Qtrue;
1614 }
1615 FEATURE_SET(opt->warn, RB_WARN_CATEGORY_DEFAULT_BITS);
1616 s++;
1617 goto reswitch;
1618
1619 case 'W':
1620 if (!(s = proc_W_option(opt, s, &warning))) break;
1621 goto reswitch;
1622
1623 case 'c':
1624 if (envopt) goto noenvopt;
1625 opt->dump |= DUMP_BIT(syntax);
1626 s++;
1627 goto reswitch;
1628
1629 case 's':
1630 if (envopt) goto noenvopt;
1631 forbid_setid("-s");
1632 if (!opt->sflag) opt->sflag = 1;
1633 s++;
1634 goto reswitch;
1635
1636 case 'h':
1637 if (envopt) goto noenvopt;
1638 opt->dump |= DUMP_BIT(usage);
1639 goto switch_end;
1640
1641 case 'l':
1642 if (envopt) goto noenvopt;
1643 opt->do_line = TRUE;
1644 rb_output_rs = rb_rs;
1645 s++;
1646 goto reswitch;
1647
1648 case 'S':
1649 if (envopt) goto noenvopt;
1650 forbid_setid("-S");
1651 opt->do_search = TRUE;
1652 s++;
1653 goto reswitch;
1654
1655 case 'e':
1656 if (envopt) goto noenvopt;
1657 if (!(n = proc_e_option(opt, s, argc, argv))) break;
1658 --n;
1659 argc -= n;
1660 argv += n;
1661 break;
1662
1663 case 'r':
1664 forbid_setid("-r");
1665 if (*++s) {
1666 add_modules(&opt->req_list, s);
1667 }
1668 else if (argc > 1) {
1669 add_modules(&opt->req_list, argv[1]);
1670 argc--, argv++;
1671 }
1672 break;
1673
1674 case 'i':
1675 if (envopt) goto noenvopt;
1676 forbid_setid("-i");
1677 ruby_set_inplace_mode(s + 1);
1678 break;
1679
1680 case 'x':
1681 if (envopt) goto noenvopt;
1682 forbid_setid("-x");
1683 opt->xflag = TRUE;
1684 s++;
1685 if (*s && chdir(s) < 0) {
1686 rb_fatal("Can't chdir to %s", s);
1687 }
1688 break;
1689
1690 case 'C':
1691 case 'X':
1692 if (envopt) goto noenvopt;
1693 if (!*++s && (!--argc || !(s = *++argv) || !*s)) {
1694 rb_fatal("Can't chdir");
1695 }
1696 if (chdir(s) < 0) {
1697 rb_fatal("Can't chdir to %s", s);
1698 }
1699 break;
1700
1701 case 'F':
1702 if (envopt) goto noenvopt;
1703 if (*++s) {
1704 rb_fs = rb_reg_new(s, strlen(s), 0);
1705 }
1706 break;
1707
1708 case 'E':
1709 if (!*++s && (!--argc || !(s = *++argv))) {
1710 rb_raise(rb_eRuntimeError, "missing argument for -E");
1711 }
1712 proc_encoding_option(opt, s, "-E");
1713 break;
1714
1715 case 'U':
1716 set_internal_encoding_once(opt, "UTF-8", 0);
1717 ++s;
1718 goto reswitch;
1719
1720 case 'K':
1721 if (!(s = proc_K_option(opt, s))) break;
1722 goto reswitch;
1723
1724 case 'I':
1725 forbid_setid("-I");
1726 if (*++s)
1727 ruby_incpush_expand(s);
1728 else if (argc > 1) {
1729 ruby_incpush_expand(argv[1]);
1730 argc--, argv++;
1731 }
1732 break;
1733
1734 case '0':
1735 if (envopt) goto noenvopt;
1736 if (!(s = proc_0_option(opt, s))) break;
1737 goto reswitch;
1738
1739 case '-':
1740 if (!s[1] || (s[1] == '\r' && !s[2])) {
1741 argc--, argv++;
1742 goto switch_end;
1743 }
1744 s++;
1745
1746 if (!(n = proc_long_options(opt, s, argc, argv, envopt))) goto switch_end;
1747 --n;
1748 argc -= n;
1749 argv += n;
1750 break;
1751
1752 case '\r':
1753 if (!s[1])
1754 break;
1755
1756 default: {
1757 rb_encoding *enc = IF_UTF8_PATH(rb_utf8_encoding(), rb_locale_encoding());
1758 const char *e = s + strlen(s);
1759 int r = rb_enc_precise_mbclen(s, e, enc);
1760 unsigned int c = (unsigned char)*s;
1761 if (r > 0) {
1762 c = rb_enc_mbc_to_codepoint(s, e, enc);
1763 if (ONIGENC_IS_CODE_GRAPH(enc, c) ||
1764 ((s = ruby_escaped_char(c)) != 0 &&
1765 (r = (int)strlen(s), /* 3 at most */ 1))) {
1766 rb_enc_raise(enc, rb_eRuntimeError,
1767 "invalid option -%.*s (-h will show valid options)",
1768 r, s);
1769 }
1770 }
1771 rb_raise(rb_eRuntimeError,
1772 "invalid option -\\x%.2x (-h will show valid options)",
1773 c);
1774
1775 goto switch_end;
1776 }
1777
1778 noenvopt:
1779 /* "EIdvwWrKU" only */
1780 rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: -%c", *s);
1781 break;
1782
1783 case 0:
1784 break;
1785 }
1786 }
1787
1788 switch_end:
1789 if (warning) opt->warning = warning;
1790 return argc0 - argc;
1791}
1792
1793 VALUE rb_define_gem_modules(VALUE, VALUE);
1794void Init_builtin_features(void);
1795
1796static void
1797ruby_init_prelude(void)
1798{
1799 Init_builtin_features();
1800}
1801
1802void rb_call_builtin_inits(void);
1803
1804// Initialize extra optional exts linked statically.
1805// This empty definition will be replaced with the actual strong symbol by linker.
1806#if RBIMPL_HAS_ATTRIBUTE(weak)
1807 __attribute__((weak))
1808#endif
1809void
1810Init_extra_exts(void)
1811{
1812}
1813
1814static void
1815ruby_opt_init(ruby_cmdline_options_t *opt)
1816{
1817 rb_warning_category_update(opt->warn.mask, opt->warn.set);
1818
1819 if (opt->dump & dump_exit_bits) return;
1820
1821 /* [Feature #19785] Warning for removed GC environment variable.
1822 * Remove this in Ruby 3.4. */
1823 if (getenv("RUBY_GC_HEAP_INIT_SLOTS")) {
1824 rb_warn_deprecated("The environment variable RUBY_GC_HEAP_INIT_SLOTS",
1825 "environment variables RUBY_GC_HEAP_%d_INIT_SLOTS");
1826 }
1827
1828 Init_ext(); /* load statically linked extensions before rubygems */
1829 Init_extra_exts();
1830
1831 GET_VM()->running = 0;
1832 rb_call_builtin_inits();
1833 GET_VM()->running = 1;
1834 memset(ruby_vm_redefined_flag, 0, sizeof(ruby_vm_redefined_flag));
1835
1836 // Register JIT-optimized builtin CMEs before the prelude, which may
1837 // redefine core methods (e.g. Kernel.prepend via bundler/setup).
1838#if USE_YJIT
1839 rb_yjit_init_builtin_cmes();
1840#endif
1841#if USE_ZJIT
1842 extern void rb_zjit_init_builtin_cmes(void);
1843 rb_zjit_init_builtin_cmes();
1844#endif
1845
1850 if (rb_box_available()) {
1851 rb_initialize_mandatory_boxes();
1852 }
1853
1854 rb_box_init_done();
1855
1856 if (FEATURE_SET_P(opt->features, gems)) {
1857 rb_box_gem_flags_t gem_flags = {
1858 .gem = FEATURE_SET_P(opt->features, gems),
1859 .error_highlight = opt->features.set & FEATURE_BIT(error_highlight),
1860 .did_you_mean = opt->features.set & FEATURE_BIT(did_you_mean),
1861 .syntax_suggest = opt->features.set & FEATURE_BIT(syntax_suggest)
1862 };
1863
1864 if (rb_box_available()) {
1865 rb_vm_call_cfunc_in_box(Qnil, rb_define_gem_modules, (VALUE)&gem_flags, Qnil,
1866 rb_str_new_cstr("before_prelude.root.dummy"), rb_root_box());
1867 rb_vm_call_cfunc_in_box(Qnil, rb_define_gem_modules, (VALUE)&gem_flags, Qnil,
1868 rb_str_new_cstr("before_prelude.main.dummy"), rb_main_box());
1869
1870 rb_box_set_gem_flags(&gem_flags);
1871 }
1872 else {
1873 rb_define_gem_modules((VALUE)&gem_flags, Qnil);
1874 }
1875 }
1876
1877 // The root/main boxes load gem_prelude here.
1878 // User boxes will load it in those #initialize instead.
1879 ruby_init_prelude();
1880
1881 // Enable JITs after ruby_init_prelude() to avoid JITing prelude code.
1882#if USE_YJIT
1883 rb_yjit_init(opt->yjit);
1884#endif
1885#if USE_ZJIT
1886 extern void rb_zjit_init(bool);
1887 rb_zjit_init(opt->zjit);
1888#endif
1889
1890 ruby_set_script_name(opt->script_name);
1891 if (rb_box_available()) {
1892 require_libraries_in_main_box(&opt->req_list);
1893 }
1894 else {
1895 require_libraries(&opt->req_list);
1896 }
1897}
1898
1899static int
1900opt_enc_index(VALUE enc_name)
1901{
1902 const char *s = RSTRING_PTR(enc_name);
1903 int i = rb_enc_find_index(s);
1904
1905 if (i < 0) {
1906 rb_raise(rb_eRuntimeError, "unknown encoding name - %s", s);
1907 }
1908 else if (rb_enc_dummy_p(rb_enc_from_index(i))) {
1909 rb_raise(rb_eRuntimeError, "dummy encoding is not acceptable - %s ", s);
1910 }
1911 return i;
1912}
1913
1914#define rb_progname (GET_VM()->progname)
1915#define rb_orig_progname (GET_VM()->orig_progname)
1916 VALUE rb_argv0;
1917 VALUE rb_e_script;
1918
1919static VALUE
1920false_value(ID _x, VALUE *_y)
1921{
1922 return Qfalse;
1923}
1924
1925static VALUE
1926true_value(ID _x, VALUE *_y)
1927{
1928 return Qtrue;
1929}
1930
1931#define rb_define_readonly_boolean(name, val) \
1932 rb_define_virtual_variable((name), (val) ? true_value : false_value, 0)
1933
1934static VALUE
1935uscore_get(void)
1936{
1937 VALUE line;
1938
1939 line = rb_lastline_get();
1940 if (!RB_TYPE_P(line, T_STRING)) {
1941 rb_raise(rb_eTypeError, "$_ value need to be String (%s given)",
1942 NIL_P(line) ? "nil" : rb_obj_classname(line));
1943 }
1944 return line;
1945}
1946
1947/*
1948 * call-seq:
1949 * sub(pattern, replacement) -> $_
1950 * sub(pattern) {|...| block } -> $_
1951 *
1952 * Equivalent to <code>$_.sub(<i>args</i>)</code>, except that
1953 * <code>$_</code> will be updated if substitution occurs.
1954 * Available only when -p/-n command line option specified.
1955 */
1956
1957static VALUE
1958rb_f_sub(int argc, VALUE *argv, VALUE _)
1959{
1960 VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("sub"), argc, argv);
1961 rb_lastline_set(str);
1962 return str;
1963}
1964
1965/*
1966 * call-seq:
1967 * gsub(pattern, replacement) -> $_
1968 * gsub(pattern) {|...| block } -> $_
1969 *
1970 * Equivalent to <code>$_.gsub...</code>, except that <code>$_</code>
1971 * will be updated if substitution occurs.
1972 * Available only when -p/-n command line option specified.
1973 *
1974 */
1975
1976static VALUE
1977rb_f_gsub(int argc, VALUE *argv, VALUE _)
1978{
1979 VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("gsub"), argc, argv);
1980 rb_lastline_set(str);
1981 return str;
1982}
1983
1984/*
1985 * call-seq:
1986 * chop -> $_
1987 *
1988 * Equivalent to <code>($_.dup).chop!</code>, except <code>nil</code>
1989 * is never returned. See String#chop!.
1990 * Available only when -p/-n command line option specified.
1991 *
1992 */
1993
1994static VALUE
1995rb_f_chop(VALUE _)
1996{
1997 VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("chop"), 0, 0);
1998 rb_lastline_set(str);
1999 return str;
2000}
2001
2002
2003/*
2004 * call-seq:
2005 * chomp -> $_
2006 * chomp(string) -> $_
2007 *
2008 * Equivalent to <code>$_ = $_.chomp(<em>string</em>)</code>. See
2009 * String#chomp.
2010 * Available only when -p/-n command line option specified.
2011 *
2012 */
2013
2014static VALUE
2015rb_f_chomp(int argc, VALUE *argv, VALUE _)
2016{
2017 VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("chomp"), argc, argv);
2018 rb_lastline_set(str);
2019 return str;
2020}
2021
2022static void
2023setup_pager_env(void)
2024{
2025 if (!getenv("LESS")) {
2026 // Output "raw" control characters, and move per sections.
2027 ruby_setenv("LESS", "-R +/^[A-Z].*");
2028 }
2029}
2030
2031#ifdef _WIN32
2032static int
2033tty_enabled(void)
2034{
2035 HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE);
2036 DWORD m;
2037 if (!GetConsoleMode(h, &m)) return 0;
2038# ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING
2039# define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x4
2040# endif
2041 if (!(m & ENABLE_VIRTUAL_TERMINAL_PROCESSING)) return 0;
2042 return 1;
2043}
2044#elif !defined(HAVE_WORKING_FORK)
2045# define tty_enabled() 0
2046#endif
2047
2048static VALUE
2049copy_str(VALUE str, rb_encoding *enc, bool intern)
2050{
2051 if (!intern) {
2052 if (rb_enc_str_coderange_scan(str, enc) == ENC_CODERANGE_BROKEN)
2053 return 0;
2054 return rb_enc_associate(rb_str_dup(str), enc);
2055 }
2056 return rb_enc_interned_str(RSTRING_PTR(str), RSTRING_LEN(str), enc);
2057}
2058
2059#if USE_YJIT || USE_ZJIT
2060// Check that an environment variable is set to a truthy value
2061static bool
2062env_var_truthy(const char *name)
2063{
2064 const char *value = getenv(name);
2065
2066 if (!value)
2067 return false;
2068 if (strcmp(value, "1") == 0)
2069 return true;
2070 if (strcmp(value, "true") == 0)
2071 return true;
2072 if (strcmp(value, "yes") == 0)
2073 return true;
2074
2075 return false;
2076}
2077#endif
2078
2079rb_pid_t rb_fork_ruby(int *status);
2080
2081static void
2082show_help(const char *progname, int help)
2083{
2084 int tty = isatty(1);
2085 int columns = 0;
2086 if (help && tty) {
2087 const char *pager_env = getenv("RUBY_PAGER");
2088 if (!pager_env) pager_env = getenv("PAGER");
2089 if (pager_env && *pager_env && isatty(0)) {
2090 const char *columns_env = getenv("COLUMNS");
2091 if (columns_env) columns = atoi(columns_env);
2092 VALUE pager = rb_str_new_cstr(pager_env);
2093#ifdef HAVE_WORKING_FORK
2094 int fds[2];
2095 if (rb_pipe(fds) == 0) {
2096 rb_pid_t pid = rb_fork_ruby(NULL);
2097 if (pid > 0) {
2098 /* exec PAGER with reading from child */
2099 dup2(fds[0], 0);
2100 }
2101 else if (pid == 0) {
2102 /* send the help message to the parent PAGER */
2103 dup2(fds[1], 1);
2104 dup2(fds[1], 2);
2105 }
2106 close(fds[0]);
2107 close(fds[1]);
2108 if (pid > 0) {
2109 setup_pager_env();
2110 rb_f_exec(1, &pager);
2111 kill(SIGTERM, pid);
2112 rb_waitpid(pid, 0, 0);
2113 }
2114 }
2115#else
2116 setup_pager_env();
2117 VALUE port = rb_io_popen(pager, rb_str_new_lit("w"), Qnil, Qnil);
2118 if (!NIL_P(port)) {
2119 int oldout = dup(1);
2120 int olderr = dup(2);
2121 int fd = RFILE(port)->fptr->fd;
2122 tty = tty_enabled();
2123 dup2(fd, 1);
2124 dup2(fd, 2);
2125 usage(progname, 1, tty, columns);
2126 fflush(stdout);
2127 dup2(oldout, 1);
2128 dup2(olderr, 2);
2129 rb_io_close(port);
2130 return;
2131 }
2132#endif
2133 }
2134 }
2135 usage(progname, help, tty, columns);
2136}
2137
2138static VALUE
2139process_script(ruby_cmdline_options_t *opt)
2140{
2141 rb_ast_t *ast;
2142 VALUE ast_value;
2143 VALUE parser = rb_parser_new();
2144 const unsigned int dump = opt->dump;
2145
2146 if (dump & DUMP_BIT(yydebug)) {
2147 rb_parser_set_yydebug(parser, Qtrue);
2148 }
2149
2150 if ((dump & dump_exit_bits) && (dump & DUMP_BIT(opt_error_tolerant))) {
2151 rb_parser_error_tolerant(parser);
2152 }
2153
2154 if (opt->e_script) {
2155 VALUE progname = rb_progname;
2156 rb_parser_set_context(parser, 0, TRUE);
2157
2158 ruby_opt_init(opt);
2159 ruby_set_script_name(progname);
2160 rb_parser_set_options(parser, opt->do_print, opt->do_loop,
2161 opt->do_line, opt->do_split);
2162 ast_value = rb_parser_compile_string(parser, opt->script, opt->e_script, 1);
2163 }
2164 else {
2165 VALUE f;
2166 int xflag = opt->xflag;
2167 f = open_load_file(opt->script_name, &xflag);
2168 opt->xflag = xflag != 0;
2169 rb_parser_set_context(parser, 0, f == rb_stdin);
2170 ast_value = load_file(parser, opt->script_name, f, 1, opt);
2171 }
2172 ast = rb_ruby_ast_data_get(ast_value);
2173 if (!ast->body.root) {
2174 rb_ast_dispose(ast);
2175 return Qnil;
2176 }
2177 return ast_value;
2178}
2179
2180static uint8_t
2181prism_script_command_line(ruby_cmdline_options_t *opt)
2182{
2183 uint8_t command_line = 0;
2184 if (opt->do_split) command_line |= PM_OPTIONS_COMMAND_LINE_A;
2185 if (opt->do_line) command_line |= PM_OPTIONS_COMMAND_LINE_L;
2186 if (opt->do_loop) command_line |= PM_OPTIONS_COMMAND_LINE_N;
2187 if (opt->do_print) command_line |= PM_OPTIONS_COMMAND_LINE_P;
2188 if (opt->xflag) command_line |= PM_OPTIONS_COMMAND_LINE_X;
2189 return command_line;
2190}
2191
2192static void
2193prism_script_shebang_callback(pm_options_t *options, const uint8_t *source, size_t length, void *data)
2194{
2195 ruby_cmdline_options_t *opt = (ruby_cmdline_options_t *) data;
2196 opt->warning = 0;
2197
2198 char *switches = malloc(length + 1);
2199 memcpy(switches, source, length);
2200 switches[length] = '\0';
2201
2202 int no_src_enc = !opt->src.enc.name;
2203 int no_ext_enc = !opt->ext.enc.name;
2204 int no_int_enc = !opt->intern.enc.name;
2205
2206 moreswitches(switches, opt, 0);
2207 free(switches);
2208
2209 pm_options_command_line_set(options, prism_script_command_line(opt));
2210
2211 if (no_src_enc && opt->src.enc.name) {
2212 opt->src.enc.index = opt_enc_index(opt->src.enc.name);
2213 pm_options_encoding_set(options, StringValueCStr(opt->ext.enc.name));
2214 }
2215 if (no_ext_enc && opt->ext.enc.name) {
2216 opt->ext.enc.index = opt_enc_index(opt->ext.enc.name);
2217 }
2218 if (no_int_enc && opt->intern.enc.name) {
2219 opt->intern.enc.index = opt_enc_index(opt->intern.enc.name);
2220 }
2221}
2222
2227static void
2228prism_script(ruby_cmdline_options_t *opt, pm_parse_result_t *result)
2229{
2230 memset(result, 0, sizeof(pm_parse_result_t));
2231
2232 pm_options_t *options = &result->options;
2233 pm_options_line_set(options, 1);
2234 pm_options_main_script_set(options, true);
2235
2236 const bool read_stdin = (strcmp(opt->script, "-") == 0);
2237
2238 if (read_stdin) {
2239 pm_options_encoding_set(options, rb_enc_name(rb_locale_encoding()));
2240 }
2241 if (opt->src.enc.name != 0) {
2242 pm_options_encoding_set(options, StringValueCStr(opt->src.enc.name));
2243 }
2244
2245 uint8_t command_line = prism_script_command_line(opt);
2246 VALUE error;
2247
2248 if (read_stdin) {
2249 pm_options_command_line_set(options, command_line);
2250 pm_options_filepath_set(options, "-");
2251 pm_options_shebang_callback_set(options, prism_script_shebang_callback, (void *) opt);
2252
2253 ruby_opt_init(opt);
2254 error = pm_parse_stdin(result);
2255
2256 // If we found an __END__ marker, then we're going to define a global
2257 // DATA constant that is a file object that can be read to read the
2258 // contents after the marker.
2259 if (NIL_P(error) && result->parser.data_loc.start != NULL) {
2260 rb_define_global_const("DATA", rb_stdin);
2261 }
2262 }
2263 else if (opt->e_script) {
2264 command_line = (uint8_t) ((command_line | PM_OPTIONS_COMMAND_LINE_E) & ~PM_OPTIONS_COMMAND_LINE_X);
2265 pm_options_command_line_set(options, command_line);
2266
2267 ruby_opt_init(opt);
2268 result->node.coverage_enabled = 0;
2269 error = pm_parse_string(result, opt->e_script, rb_str_new2("-e"), NULL);
2270 }
2271 else {
2272 VALUE script_name = rb_str_encode_ospath(opt->script_name);
2273
2274 pm_options_command_line_set(options, command_line);
2275 pm_options_shebang_callback_set(options, prism_script_shebang_callback, (void *) opt);
2276
2277 error = pm_load_file(result, script_name, true);
2278
2279 // If reading the file did not error, at that point we load the command
2280 // line options. We do it in this order so that if the main script fails
2281 // to load, it doesn't require files required by -r.
2282 if (NIL_P(error)) {
2283 ruby_opt_init(opt);
2284 error = pm_parse_file(result, opt->script_name, NULL);
2285 }
2286
2287 // Check if (after requiring all of the files through -r flags) we have
2288 // coverage enabled and need to enable coverage on the main script.
2289 if (RTEST(rb_get_coverages())) {
2290 result->node.coverage_enabled = 1;
2291 }
2292
2293 // If we found an __END__ marker, then we're going to define a global
2294 // DATA constant that is a file object that can be read to read the
2295 // contents after the marker.
2296 if (NIL_P(error) && result->parser.data_loc.start != NULL) {
2297 int xflag = opt->xflag;
2298 VALUE file = open_load_file(script_name, &xflag);
2299
2300 const pm_parser_t *parser = &result->parser;
2301 size_t offset = parser->data_loc.start - parser->start + 7;
2302
2303 if ((parser->start + offset < parser->end) && parser->start[offset] == '\r') offset++;
2304 if ((parser->start + offset < parser->end) && parser->start[offset] == '\n') offset++;
2305
2306 rb_funcall(file, rb_intern_const("seek"), 2, SIZET2NUM(offset), INT2FIX(SEEK_SET));
2307 rb_define_global_const("DATA", file);
2308 }
2309 }
2310
2311 if (!NIL_P(error)) {
2312 pm_parse_result_free(result);
2313 rb_exc_raise(error);
2314 }
2315}
2316
2317static VALUE
2318prism_dump_tree(pm_parse_result_t *result)
2319{
2320 pm_buffer_t output_buffer = { 0 };
2321
2322 pm_prettyprint(&output_buffer, &result->parser, result->node.ast_node);
2323 VALUE tree = rb_str_new(output_buffer.value, output_buffer.length);
2324 pm_buffer_free(&output_buffer);
2325 return tree;
2326}
2327
2328static void
2329process_options_global_setup(const ruby_cmdline_options_t *opt, const rb_iseq_t *iseq)
2330{
2331 if (OPT_BACKTRACE_LENGTH_LIMIT_VALID_P(opt)) {
2332 rb_backtrace_length_limit = opt->backtrace_length_limit;
2333 }
2334
2335 if (opt->do_loop) {
2336 rb_define_global_function("sub", rb_f_sub, -1);
2337 rb_define_global_function("gsub", rb_f_gsub, -1);
2338 rb_define_global_function("chop", rb_f_chop, 0);
2339 rb_define_global_function("chomp", rb_f_chomp, -1);
2340 }
2341
2342 rb_define_readonly_boolean("$-p", opt->do_print);
2343 rb_define_readonly_boolean("$-l", opt->do_line);
2344 rb_define_readonly_boolean("$-a", opt->do_split);
2345
2346 rb_gvar_ractor_local("$-p");
2347 rb_gvar_ractor_local("$-l");
2348 rb_gvar_ractor_local("$-a");
2349
2350 if ((rb_e_script = opt->e_script) != 0) {
2351 rb_str_freeze(rb_e_script);
2352 rb_vm_register_global_object(opt->e_script);
2353 }
2354
2355 rb_execution_context_t *ec = GET_EC();
2356 VALUE script = (opt->e_script ? opt->e_script : Qnil);
2357 rb_exec_event_hook_script_compiled(ec, iseq, script);
2358}
2359
2360static VALUE
2361process_options(int argc, char **argv, ruby_cmdline_options_t *opt)
2362{
2363 VALUE ast_value = Qnil;
2364 struct {
2365 rb_ast_t *ast;
2366 pm_parse_result_t prism;
2367 } result = {0};
2368#define dispose_result() \
2369 (result.ast ? rb_ast_dispose(result.ast) : pm_parse_result_free(&result.prism))
2370
2371 const rb_iseq_t *iseq;
2372 rb_encoding *enc, *lenc;
2373#if UTF8_PATH
2374 rb_encoding *ienc = 0;
2375 rb_encoding *const uenc = rb_utf8_encoding();
2376#endif
2377 const char *s;
2378 char fbuf[MAXPATHLEN];
2379 int i = (int)proc_options(argc, argv, opt, 0);
2380 unsigned int dump = opt->dump & dump_exit_bits;
2381 const rb_box_t *box = rb_root_box();
2382 const long loaded_before_enc = RARRAY_LEN(box->loaded_features);
2383
2384 if (opt->dump & (DUMP_BIT(usage)|DUMP_BIT(help))) {
2385 const char *const progname =
2386 (argc > 0 && argv && argv[0] ? argv[0] :
2387 origarg.argc > 0 && origarg.argv && origarg.argv[0] ? origarg.argv[0] :
2388 ruby_engine);
2389 show_help(progname, (opt->dump & DUMP_BIT(help)));
2390 return Qtrue;
2391 }
2392
2393 argc -= i;
2394 argv += i;
2395
2396 if (FEATURE_SET_P(opt->features, rubyopt) && (s = getenv("RUBYOPT"))) {
2397 moreswitches(s, opt, 1);
2398 }
2399
2400 if (opt->src.enc.name)
2401 /* cannot set deprecated category, as enabling deprecation warnings based on flags
2402 * has not happened yet.
2403 */
2404 rb_warning("-K is specified; it is for 1.8 compatibility and may cause odd behavior");
2405
2406 if (!(FEATURE_SET_BITS(opt->features) & feature_jit_mask)) {
2407#if USE_YJIT
2408 if (!FEATURE_USED_P(opt->features, yjit) && env_var_truthy("RUBY_YJIT_ENABLE")) {
2409 FEATURE_SET(opt->features, FEATURE_BIT(yjit));
2410 }
2411#endif
2412#if USE_ZJIT
2413 if (!FEATURE_USED_P(opt->features, zjit) && env_var_truthy("RUBY_ZJIT_ENABLE")) {
2414 FEATURE_SET(opt->features, FEATURE_BIT(zjit));
2415
2416 // When the --zjit flag is specified, we would have call setup_zjit_options(""),
2417 // which would have called rb_zjit_prepare_options() internally. This ensures we
2418 // go through the same set up but with less overhead than setup_zjit_options("").
2419 extern void rb_zjit_prepare_options();
2420 rb_zjit_prepare_options();
2421 }
2422#endif
2423 }
2424 if (MULTI_BITS_P(FEATURE_SET_BITS(opt->features) & feature_jit_mask)) {
2425 rb_warn("Only one JIT can be enabled at the same time. Exiting");
2426 return Qfalse;
2427 }
2428
2429#if USE_YJIT
2430 if (FEATURE_SET_P(opt->features, yjit)) {
2431 bool rb_yjit_option_disable(void);
2432 opt->yjit = !rb_yjit_option_disable(); // set opt->yjit for Init_ruby_description() and calling rb_yjit_init()
2433 }
2434#endif
2435#if USE_ZJIT
2436 if (FEATURE_SET_P(opt->features, zjit)) {
2437 bool rb_zjit_option_enable(void);
2438 opt->zjit = rb_zjit_option_enable(); // set opt->zjit for Init_ruby_description() and calling rb_zjit_init()
2439 }
2440#endif
2441
2442 ruby_mn_threads_params();
2443 Init_ruby_description(opt);
2444
2445 if (opt->dump & (DUMP_BIT(version) | DUMP_BIT(version_v))) {
2446 ruby_show_version();
2447 if (opt->dump & DUMP_BIT(version)) return Qtrue;
2448 }
2449 if (opt->dump & DUMP_BIT(copyright)) {
2450 ruby_show_copyright();
2451 return Qtrue;
2452 }
2453
2454 if (!opt->e_script) {
2455 if (argc <= 0) { /* no more args */
2456 if (opt->verbose)
2457 return Qtrue;
2458 opt->script = "-";
2459 }
2460 else {
2461 opt->script = argv[0];
2462 if (!opt->script || opt->script[0] == '\0') {
2463 opt->script = "-";
2464 }
2465 else if (opt->do_search) {
2466 const char *path = getenv("RUBYPATH");
2467
2468 opt->script = 0;
2469 if (path) {
2470 opt->script = dln_find_file_r(argv[0], path, fbuf, sizeof(fbuf));
2471 }
2472 if (!opt->script) {
2473 opt->script = dln_find_file_r(argv[0], getenv(PATH_ENV), fbuf, sizeof(fbuf));
2474 }
2475 if (!opt->script)
2476 opt->script = argv[0];
2477 }
2478 argc--;
2479 argv++;
2480 }
2481 if (opt->script[0] == '-' && !opt->script[1]) {
2482 forbid_setid("program input from stdin");
2483 }
2484 }
2485
2486 opt->script_name = rb_str_new_cstr(opt->script);
2487 opt->script = RSTRING_PTR(opt->script_name);
2488
2489#ifdef _WIN32
2490 translit_char_bin(RSTRING_PTR(opt->script_name), '\\', '/');
2491#endif
2492
2493 ruby_gc_set_params();
2494 ruby_init_loadpath();
2495
2496 Init_enc();
2497 lenc = rb_locale_encoding();
2498 rb_enc_associate(rb_progname, lenc);
2499 rb_obj_freeze(rb_progname);
2500 if (opt->ext.enc.name != 0) {
2501 opt->ext.enc.index = opt_enc_index(opt->ext.enc.name);
2502 }
2503 if (opt->intern.enc.name != 0) {
2504 opt->intern.enc.index = opt_enc_index(opt->intern.enc.name);
2505 }
2506 if (opt->src.enc.name != 0) {
2507 opt->src.enc.index = opt_enc_index(opt->src.enc.name);
2508 src_encoding_index = opt->src.enc.index;
2509 }
2510 if (opt->ext.enc.index >= 0) {
2511 enc = rb_enc_from_index(opt->ext.enc.index);
2512 }
2513 else {
2514 enc = IF_UTF8_PATH(uenc, lenc);
2515 }
2516 rb_enc_set_default_external(rb_enc_from_encoding(enc));
2517 if (opt->intern.enc.index >= 0) {
2518 enc = rb_enc_from_index(opt->intern.enc.index);
2519 rb_enc_set_default_internal(rb_enc_from_encoding(enc));
2520 opt->intern.enc.index = -1;
2521#if UTF8_PATH
2522 ienc = enc;
2523#endif
2524 }
2525 rb_enc_associate(opt->script_name, IF_UTF8_PATH(uenc, lenc));
2526#if UTF8_PATH
2527 if (uenc != lenc) {
2528 opt->script_name = str_conv_enc(opt->script_name, uenc, lenc);
2529 opt->script = RSTRING_PTR(opt->script_name);
2530 }
2531#endif
2532 rb_obj_freeze(opt->script_name);
2533 if (IF_UTF8_PATH(uenc != lenc, 1)) {
2534 long i;
2535 VALUE load_path = box->load_path;
2536 const ID id_initial_load_path_mark = INITIAL_LOAD_PATH_MARK;
2537 int modifiable = FALSE;
2538
2539 rb_get_expanded_load_path();
2540 for (i = 0; i < RARRAY_LEN(load_path); ++i) {
2541 VALUE path = RARRAY_AREF(load_path, i);
2542 int mark = rb_attr_get(path, id_initial_load_path_mark) == path;
2543#if UTF8_PATH
2544 VALUE newpath = rb_str_conv_enc(path, uenc, lenc);
2545 if (newpath == path) continue;
2546 path = newpath;
2547#else
2548 if (!(path = copy_str(path, lenc, !mark))) continue;
2549#endif
2550 if (mark) rb_ivar_set(path, id_initial_load_path_mark, path);
2551 if (!modifiable) {
2552 rb_ary_modify(load_path);
2553 modifiable = TRUE;
2554 }
2555 RARRAY_ASET(load_path, i, path);
2556 }
2557 if (modifiable) {
2558 rb_ary_replace(box->load_path_snapshot, load_path);
2559 }
2560 }
2561 {
2562 VALUE loaded_features = box->loaded_features;
2563 bool modified = false;
2564 for (long i = loaded_before_enc; i < RARRAY_LEN(loaded_features); ++i) {
2565 VALUE path = RARRAY_AREF(loaded_features, i);
2566 if (!(path = copy_str(path, IF_UTF8_PATH(uenc, lenc), true))) continue;
2567 if (!modified) {
2568 rb_ary_modify(loaded_features);
2569 modified = true;
2570 }
2571 RARRAY_ASET(loaded_features, i, path);
2572 }
2573 if (modified) {
2574 rb_ary_replace(box->loaded_features_snapshot, loaded_features);
2575 }
2576 }
2577
2578 if (opt->features.mask & COMPILATION_FEATURES) {
2579 VALUE option = rb_hash_new();
2580#define SET_COMPILE_OPTION(h, o, name) \
2581 rb_hash_aset((h), ID2SYM(rb_intern_const(#name)), \
2582 RBOOL(FEATURE_SET_P(o->features, name)))
2583
2584 if (FEATURE_SET_P(opt->features, frozen_string_literal_set)) {
2585 SET_COMPILE_OPTION(option, opt, frozen_string_literal);
2586 }
2587 SET_COMPILE_OPTION(option, opt, debug_frozen_string_literal);
2588 rb_funcallv(rb_cISeq, rb_intern_const("compile_option="), 1, &option);
2589#undef SET_COMPILE_OPTION
2590 }
2591 ruby_set_argv(argc, argv);
2592 opt->sflag = process_sflag(opt->sflag);
2593
2594 if (opt->e_script) {
2595 rb_encoding *eenc;
2596 if (opt->src.enc.index >= 0) {
2597 eenc = rb_enc_from_index(opt->src.enc.index);
2598 }
2599 else {
2600 eenc = lenc;
2601#if UTF8_PATH
2602 if (ienc) eenc = ienc;
2603#endif
2604 }
2605#if UTF8_PATH
2606 if (eenc != uenc) {
2607 opt->e_script = str_conv_enc(opt->e_script, uenc, eenc);
2608 }
2609#endif
2610 rb_enc_associate(opt->e_script, eenc);
2611 }
2612
2613 if (!rb_ruby_prism_p()) {
2614 ast_value = process_script(opt);
2615 if (!(result.ast = rb_ruby_ast_data_get(ast_value))) return Qfalse;
2616 }
2617 else {
2618 prism_script(opt, &result.prism);
2619 }
2620 ruby_set_script_name(opt->script_name);
2621 if ((dump & DUMP_BIT(yydebug)) && !(dump &= ~DUMP_BIT(yydebug))) {
2622 dispose_result();
2623 return Qtrue;
2624 }
2625
2626 if (opt->ext.enc.index >= 0) {
2627 enc = rb_enc_from_index(opt->ext.enc.index);
2628 }
2629 else {
2630 enc = IF_UTF8_PATH(uenc, lenc);
2631 }
2632 rb_enc_set_default_external(rb_enc_from_encoding(enc));
2633 if (opt->intern.enc.index >= 0) {
2634 /* Set in the shebang line */
2635 enc = rb_enc_from_index(opt->intern.enc.index);
2636 rb_enc_set_default_internal(rb_enc_from_encoding(enc));
2637 }
2638 else if (!rb_default_internal_encoding())
2639 /* Freeze default_internal */
2640 rb_enc_set_default_internal(Qnil);
2641 rb_stdio_set_default_encoding();
2642
2643 opt->sflag = process_sflag(opt->sflag);
2644 opt->xflag = 0;
2645
2646 if (dump & DUMP_BIT(syntax)) {
2647 printf("Syntax OK\n");
2648 dump &= ~DUMP_BIT(syntax);
2649 if (!dump) {
2650 dispose_result();
2651 return Qtrue;
2652 }
2653 }
2654
2655 if (dump & DUMP_BIT(parsetree)) {
2656 VALUE tree;
2657 if (result.ast) {
2658 int comment = opt->dump & DUMP_BIT(opt_comment);
2659 tree = rb_parser_dump_tree(result.ast->body.root, comment);
2660 }
2661 else {
2662 tree = prism_dump_tree(&result.prism);
2663 }
2664 rb_io_write(rb_stdout, tree);
2665 rb_io_flush(rb_stdout);
2666 dump &= ~DUMP_BIT(parsetree);
2667 if (!dump) {
2668 dispose_result();
2669 return Qtrue;
2670 }
2671 }
2672
2673 {
2674 VALUE path = Qnil;
2675 if (!opt->e_script && strcmp(opt->script, "-")) {
2676 path = rb_realpath_internal(Qnil, opt->script_name, 1);
2677#if UTF8_PATH
2678 if (uenc != lenc) {
2679 path = str_conv_enc(path, uenc, lenc);
2680 }
2681#endif
2682 if (!ENCODING_GET(path)) { /* ASCII-8BIT */
2683 rb_enc_copy(path, opt->script_name);
2684 }
2685 }
2686
2687 rb_binding_t *toplevel_binding;
2688 GetBindingPtr(rb_const_get(rb_cObject, rb_intern("TOPLEVEL_BINDING")), toplevel_binding);
2689 const struct rb_block *base_block = toplevel_context(toplevel_binding);
2690 const rb_iseq_t *parent = vm_block_iseq(base_block);
2691 bool optimize = (opt->dump & DUMP_BIT(opt_optimize)) != 0;
2692
2693 if (!result.ast) {
2694 pm_parse_result_t *pm = &result.prism;
2695 int error_state;
2696 iseq = pm_iseq_new_main(&pm->node, opt->script_name, path, parent, optimize, &error_state);
2697
2698 pm_parse_result_free(pm);
2699
2700 if (error_state) {
2701 RUBY_ASSERT(iseq == NULL);
2702 rb_jump_tag(error_state);
2703 }
2704 }
2705 else {
2706 rb_ast_t *ast = result.ast;
2707 iseq = rb_iseq_new_main(ast_value, opt->script_name, path, parent, optimize);
2708 rb_ast_dispose(ast);
2709 }
2710 }
2711
2712 if (dump & DUMP_BIT(insns)) {
2713 rb_io_write(rb_stdout, rb_iseq_disasm((const rb_iseq_t *)iseq));
2714 rb_io_flush(rb_stdout);
2715 dump &= ~DUMP_BIT(insns);
2716 if (!dump) return Qtrue;
2717 }
2718 if (opt->dump & dump_exit_bits) return Qtrue;
2719
2720 process_options_global_setup(opt, iseq);
2721 return (VALUE)iseq;
2722}
2723
2724#ifndef DOSISH
2725static void
2726warn_cr_in_shebang(const char *str, long len)
2727{
2728 if (len > 1 && str[len-1] == '\n' && str[len-2] == '\r') {
2729 rb_warn("shebang line ending with \\r may cause problems");
2730 }
2731}
2732#else
2733#define warn_cr_in_shebang(str, len) (void)0
2734#endif
2735
2736void rb_reset_argf_lineno(long n);
2737
2738 struct load_file_arg {
2739 VALUE parser;
2740 VALUE fname;
2741 int script;
2742 ruby_cmdline_options_t *opt;
2743 VALUE f;
2744};
2745
2746void rb_set_script_lines_for(VALUE vparser, VALUE path);
2747
2748static VALUE
2749load_file_internal(VALUE argp_v)
2750{
2751 struct load_file_arg *argp = (struct load_file_arg *)argp_v;
2752 VALUE parser = argp->parser;
2753 VALUE orig_fname = argp->fname;
2754 int script = argp->script;
2755 ruby_cmdline_options_t *opt = argp->opt;
2756 VALUE f = argp->f;
2757 int line_start = 1;
2758 VALUE ast_value = Qnil;
2759 rb_encoding *enc;
2760 ID set_encoding;
2761
2762 CONST_ID(set_encoding, "set_encoding");
2763 if (script) {
2764 VALUE c = 1; /* something not nil */
2765 VALUE line;
2766 char *p, *str;
2767 long len;
2768 int no_src_enc = !opt->src.enc.name;
2769 int no_ext_enc = !opt->ext.enc.name;
2770 int no_int_enc = !opt->intern.enc.name;
2771
2772 enc = rb_ascii8bit_encoding();
2773 rb_funcall(f, set_encoding, 1, rb_enc_from_encoding(enc));
2774
2775 if (opt->xflag) {
2776 line_start--;
2777 search_shebang:
2778 while (!NIL_P(line = rb_io_gets(f))) {
2779 line_start++;
2780 RSTRING_GETMEM(line, str, len);
2781 if (len > 2 && str[0] == '#' && str[1] == '!') {
2782 if (line_start == 1) warn_cr_in_shebang(str, len);
2783 if ((p = strstr(str+2, ruby_engine)) != 0) {
2784 goto start_read;
2785 }
2786 }
2787 }
2788 rb_loaderror("no Ruby script found in input");
2789 }
2790
2791 c = rb_io_getbyte(f);
2792 if (c == INT2FIX('#')) {
2793 c = rb_io_getbyte(f);
2794 if (c == INT2FIX('!') && !NIL_P(line = rb_io_gets(f))) {
2795 RSTRING_GETMEM(line, str, len);
2796 warn_cr_in_shebang(str, len);
2797 if ((p = strstr(str, ruby_engine)) == 0) {
2798 /* not ruby script, assume -x flag */
2799 goto search_shebang;
2800 }
2801
2802 start_read:
2803 str += len - 1;
2804 if (*str == '\n') *str-- = '\0';
2805 if (*str == '\r') *str-- = '\0';
2806 /* ruby_engine should not contain a space */
2807 if ((p = strstr(p, " -")) != 0) {
2808 opt->warning = 0;
2809 moreswitches(p + 1, opt, 0);
2810 }
2811
2812 /* push back shebang for pragma may exist in next line */
2813 rb_io_ungetbyte(f, rb_str_new2("!\n"));
2814 }
2815 else if (!NIL_P(c)) {
2816 rb_io_ungetbyte(f, c);
2817 }
2818 rb_io_ungetbyte(f, INT2FIX('#'));
2819 if (no_src_enc && opt->src.enc.name) {
2820 opt->src.enc.index = opt_enc_index(opt->src.enc.name);
2821 src_encoding_index = opt->src.enc.index;
2822 }
2823 if (no_ext_enc && opt->ext.enc.name) {
2824 opt->ext.enc.index = opt_enc_index(opt->ext.enc.name);
2825 }
2826 if (no_int_enc && opt->intern.enc.name) {
2827 opt->intern.enc.index = opt_enc_index(opt->intern.enc.name);
2828 }
2829 }
2830 else if (!NIL_P(c)) {
2831 rb_io_ungetbyte(f, c);
2832 }
2833 if (NIL_P(c)) {
2834 argp->f = f = Qnil;
2835 }
2836 rb_reset_argf_lineno(0);
2837 ruby_opt_init(opt);
2838 }
2839 if (opt->src.enc.index >= 0) {
2840 enc = rb_enc_from_index(opt->src.enc.index);
2841 }
2842 else if (f == rb_stdin) {
2843 enc = rb_locale_encoding();
2844 }
2845 else {
2846 enc = rb_utf8_encoding();
2847 }
2848 rb_parser_set_options(parser, opt->do_print, opt->do_loop,
2849 opt->do_line, opt->do_split);
2850
2851 rb_set_script_lines_for(parser, orig_fname);
2852
2853 if (NIL_P(f)) {
2854 f = rb_str_new(0, 0);
2855 rb_enc_associate(f, enc);
2856 return rb_parser_compile_string_path(parser, orig_fname, f, line_start);
2857 }
2858 rb_funcall(f, set_encoding, 2, rb_enc_from_encoding(enc), rb_str_new_cstr("-"));
2859 ast_value = rb_parser_compile_file_path(parser, orig_fname, f, line_start);
2860 rb_funcall(f, set_encoding, 1, rb_parser_encoding(parser));
2861 if (script && rb_parser_end_seen_p(parser)) {
2862 /*
2863 * DATA is a File that contains the data section of the executed file.
2864 * To create a data section use <tt>__END__</tt>:
2865 *
2866 * $ cat t.rb
2867 * puts DATA.gets
2868 * __END__
2869 * hello world!
2870 *
2871 * $ ruby t.rb
2872 * hello world!
2873 */
2874 rb_define_global_const("DATA", f);
2875 argp->f = Qnil;
2876 }
2877 return ast_value;
2878}
2879
2880/* disabling O_NONBLOCK, and returns 0 on success, otherwise errno */
2881static inline int
2882disable_nonblock(int fd)
2883{
2884#if defined(HAVE_FCNTL) && defined(F_SETFL)
2885 if (fcntl(fd, F_SETFL, 0) < 0) {
2886 const int e = errno;
2887 ASSUME(e != 0);
2888# if defined ENOTSUP
2889 if (e == ENOTSUP) return 0;
2890# endif
2891# if defined B_UNSUPPORTED
2892 if (e == B_UNSUPPORTED) return 0;
2893# endif
2894 return e;
2895 }
2896#endif
2897 return 0;
2898}
2899
2900static VALUE
2901open_load_file(VALUE fname_v, int *xflag)
2902{
2903 const char *fname = (fname_v = rb_str_encode_ospath(fname_v),
2904 StringValueCStr(fname_v));
2905 long flen = RSTRING_LEN(fname_v);
2906 VALUE f;
2907 int e;
2908
2909 if (flen == 1 && fname[0] == '-') {
2910 f = rb_stdin;
2911 }
2912 else {
2913 int fd;
2914 /* open(2) may block if fname is point to FIFO and it's empty. Let's
2915 use O_NONBLOCK. */
2916 const int MODE_TO_LOAD = O_RDONLY | (
2917#if defined O_NONBLOCK && HAVE_FCNTL
2918 /* TODO: fix conflicting O_NONBLOCK in ruby/win32.h */
2919 !(O_NONBLOCK & O_ACCMODE) ? O_NONBLOCK :
2920#endif
2921#if defined O_NDELAY && HAVE_FCNTL
2922 !(O_NDELAY & O_ACCMODE) ? O_NDELAY :
2923#endif
2924 0);
2925 int mode = MODE_TO_LOAD;
2926#if defined DOSISH || defined __CYGWIN__
2927# define isdirsep(x) ((x) == '/' || (x) == '\\')
2928 {
2929 static const char exeext[] = ".exe";
2930 enum {extlen = sizeof(exeext)-1};
2931 if (flen > extlen && !isdirsep(fname[flen-extlen-1]) &&
2932 STRNCASECMP(fname+flen-extlen, exeext, extlen) == 0) {
2933 mode |= O_BINARY;
2934 *xflag = 1;
2935 }
2936 }
2937#endif
2938
2939 if ((fd = rb_cloexec_open(fname, mode, 0)) < 0) {
2940 e = errno;
2941 if (!rb_gc_for_fd(e)) {
2942 rb_load_fail(fname_v, strerror(e));
2943 }
2944 if ((fd = rb_cloexec_open(fname, mode, 0)) < 0) {
2945 rb_load_fail(fname_v, strerror(errno));
2946 }
2947 }
2948 rb_update_max_fd(fd);
2949
2950 if (MODE_TO_LOAD != O_RDONLY && (e = disable_nonblock(fd)) != 0) {
2951 (void)close(fd);
2952 rb_load_fail(fname_v, strerror(e));
2953 }
2954
2955 e = ruby_is_fd_loadable(fd);
2956 if (!e) {
2957 e = errno;
2958 (void)close(fd);
2959 rb_load_fail(fname_v, strerror(e));
2960 }
2961
2962 f = rb_io_fdopen(fd, mode, fname);
2963 if (e < 0) {
2964 /*
2965 We need to wait if FIFO is empty. It's FIFO's semantics.
2966 rb_thread_wait_fd() release GVL. So, it's safe.
2967 */
2968 rb_io_wait(f, RB_INT2NUM(RUBY_IO_READABLE), Qnil);
2969 }
2970 }
2971 return f;
2972}
2973
2974static VALUE
2975restore_load_file(VALUE arg)
2976{
2977 struct load_file_arg *argp = (struct load_file_arg *)arg;
2978 VALUE f = argp->f;
2979
2980 if (!NIL_P(f) && f != rb_stdin) {
2981 rb_io_close(f);
2982 }
2983 return Qnil;
2984}
2985
2986static VALUE
2987load_file(VALUE parser, VALUE fname, VALUE f, int script, ruby_cmdline_options_t *opt)
2988{
2989 struct load_file_arg arg;
2990 arg.parser = parser;
2991 arg.fname = fname;
2992 arg.script = script;
2993 arg.opt = opt;
2994 arg.f = f;
2995 return rb_ensure(load_file_internal, (VALUE)&arg,
2996 restore_load_file, (VALUE)&arg);
2997}
2998
2999void *
3000rb_load_file(const char *fname)
3001{
3002 VALUE fname_v = rb_str_new_cstr(fname);
3003 return rb_load_file_str(fname_v);
3004}
3005
3006void *
3007rb_load_file_str(VALUE fname_v)
3008{
3009 VALUE ast_value;
3010 ast_value = rb_parser_load_file(rb_parser_new(), fname_v);
3011 return (void *)rb_ruby_ast_data_get(ast_value);
3012}
3013
3014 VALUE
3015rb_parser_load_file(VALUE parser, VALUE fname_v)
3016{
3017 ruby_cmdline_options_t opt;
3018 int xflag = 0;
3019 VALUE f = open_load_file(fname_v, &xflag);
3020 cmdline_options_init(&opt)->xflag = xflag != 0;
3021 return load_file(parser, fname_v, f, 0, &opt);
3022}
3023
3024/*
3025 * call-seq:
3026 * Process.argv0 -> frozen_string
3027 *
3028 * Returns the name of the script being executed. The value is not
3029 * affected by assigning a new value to $0.
3030 *
3031 * This method first appeared in Ruby 2.1 to serve as a global
3032 * variable free means to get the script name.
3033 */
3034
3035static VALUE
3036proc_argv0(VALUE process)
3037{
3038 return rb_orig_progname;
3039}
3040
3041static VALUE ruby_setproctitle(VALUE title);
3042
3043/*
3044 * call-seq:
3045 * Process.setproctitle(string) -> string
3046 *
3047 * Sets the process title that appears on the ps(1) command. Not
3048 * necessarily effective on all platforms. No exception will be
3049 * raised regardless of the result, nor will NotImplementedError be
3050 * raised even if the platform does not support the feature.
3051 *
3052 * Calling this method does not affect the value of $0.
3053 *
3054 * Process.setproctitle('myapp: worker #%d' % worker_id)
3055 *
3056 * This method first appeared in Ruby 2.1 to serve as a global
3057 * variable free means to change the process title.
3058 */
3059
3060static VALUE
3061proc_setproctitle(VALUE process, VALUE title)
3062{
3063 return ruby_setproctitle(title);
3064}
3065
3066static VALUE
3067ruby_setproctitle(VALUE title)
3068{
3069 const char *ptr = StringValueCStr(title);
3070 setproctitle("%.*s", RSTRING_LENINT(title), ptr);
3071 return title;
3072}
3073
3074static void
3075set_arg0(VALUE val, ID id, VALUE *_)
3076{
3077 if (origarg.argv == 0)
3078 rb_raise(rb_eRuntimeError, "$0 not initialized");
3079
3080 rb_progname = rb_str_new_frozen(ruby_setproctitle(val));
3081}
3082
3083static inline VALUE
3084external_str_new_cstr(const char *p)
3085{
3086#if UTF8_PATH
3087 VALUE str = rb_utf8_str_new_cstr(p);
3088 str = str_conv_enc(str, NULL, rb_default_external_encoding());
3089 return str;
3090#else
3091 return rb_external_str_new_cstr(p);
3092#endif
3093}
3094
3095static void
3096set_progname(VALUE name)
3097{
3098 rb_orig_progname = rb_progname = name;
3099 rb_vm_set_progname(rb_progname);
3100}
3101
3102void
3103ruby_script(const char *name)
3104{
3105 if (name) {
3106 set_progname(rb_str_freeze(external_str_new_cstr(name)));
3107 }
3108}
3109
3114void
3115ruby_set_script_name(VALUE name)
3116{
3117 set_progname(rb_str_new_frozen(name));
3118}
3119
3120static void
3121init_ids(ruby_cmdline_options_t *opt)
3122{
3123 rb_uid_t uid = getuid();
3124 rb_uid_t euid = geteuid();
3125 rb_gid_t gid = getgid();
3126 rb_gid_t egid = getegid();
3127
3128 if (uid != euid) opt->setids |= 1;
3129 if (egid != gid) opt->setids |= 2;
3130}
3131
3132#undef forbid_setid
3133static void
3134forbid_setid(const char *s, const ruby_cmdline_options_t *opt)
3135{
3136 if (opt->setids & 1)
3137 rb_raise(rb_eSecurityError, "no %s allowed while running setuid", s);
3138 if (opt->setids & 2)
3139 rb_raise(rb_eSecurityError, "no %s allowed while running setgid", s);
3140}
3141
3142static VALUE
3143verbose_getter(ID id, VALUE *ptr)
3144{
3145 return *rb_ruby_verbose_ptr();
3146}
3147
3148static void
3149verbose_setter(VALUE val, ID id, VALUE *variable)
3150{
3151 *rb_ruby_verbose_ptr() = RTEST(val) ? Qtrue : val;
3152}
3153
3154static VALUE
3155opt_W_getter(ID id, VALUE *dmy)
3156{
3157 VALUE v = *rb_ruby_verbose_ptr();
3158
3159 switch (v) {
3160 case Qnil:
3161 return INT2FIX(0);
3162 case Qfalse:
3163 return INT2FIX(1);
3164 case Qtrue:
3165 return INT2FIX(2);
3166 default:
3167 return Qnil;
3168 }
3169}
3170
3171static VALUE
3172debug_getter(ID id, VALUE *dmy)
3173{
3174 return *rb_ruby_debug_ptr();
3175}
3176
3177static void
3178debug_setter(VALUE val, ID id, VALUE *dmy)
3179{
3180 *rb_ruby_debug_ptr() = val;
3181}
3182
3183void
3184ruby_prog_init(void)
3185{
3186 rb_define_virtual_variable("$VERBOSE", verbose_getter, verbose_setter);
3187 rb_define_virtual_variable("$-v", verbose_getter, verbose_setter);
3188 rb_define_virtual_variable("$-w", verbose_getter, verbose_setter);
3189 rb_define_virtual_variable("$-W", opt_W_getter, rb_gvar_readonly_setter);
3190 rb_define_virtual_variable("$DEBUG", debug_getter, debug_setter);
3191 rb_define_virtual_variable("$-d", debug_getter, debug_setter);
3192
3193 rb_gvar_ractor_local("$VERBOSE");
3194 rb_gvar_ractor_local("$-v");
3195 rb_gvar_ractor_local("$-w");
3196 rb_gvar_ractor_local("$-W");
3197 rb_gvar_ractor_local("$DEBUG");
3198 rb_gvar_ractor_local("$-d");
3199
3200 rb_define_hooked_variable("$0", &rb_progname, 0, set_arg0);
3201 rb_define_hooked_variable("$PROGRAM_NAME", &rb_progname, 0, set_arg0);
3202
3203 rb_define_module_function(rb_mProcess, "argv0", proc_argv0, 0);
3204 rb_define_module_function(rb_mProcess, "setproctitle", proc_setproctitle, 1);
3205
3206 /*
3207 * ARGV contains the command line arguments used to run ruby.
3208 *
3209 * A library like OptionParser can be used to process command-line
3210 * arguments.
3211 */
3212 rb_define_global_const("ARGV", rb_argv);
3213}
3214
3215void
3216ruby_set_argv(int argc, char **argv)
3217{
3218 int i;
3219 VALUE av = rb_argv;
3220
3221 rb_ary_clear(av);
3222 for (i = 0; i < argc; i++) {
3223 VALUE arg = external_str_new_cstr(argv[i]);
3224
3225 OBJ_FREEZE(arg);
3226 rb_ary_push(av, arg);
3227 }
3228}
3229
3230void *
3231ruby_process_options(int argc, char **argv)
3232{
3233 ruby_cmdline_options_t opt;
3234 VALUE iseq;
3235 const char *script_name = (argc > 0 && argv[0]) ? argv[0] : ruby_engine;
3236
3237 if (!origarg.argv || origarg.argc <= 0) {
3238 origarg.argc = argc;
3239 origarg.argv = argv;
3240 }
3241 set_progname(external_str_new_cstr(script_name)); /* for the time being */
3242 rb_argv0 = rb_str_new4(rb_progname);
3243 rb_vm_register_global_object(rb_argv0);
3244
3245#ifndef HAVE_SETPROCTITLE
3246 ruby_init_setproctitle(argc, argv);
3247#endif
3248
3249 if (getenv("RUBY_FREE_AT_EXIT")) {
3250 rb_free_at_exit = true;
3251 rb_category_warn(RB_WARN_CATEGORY_EXPERIMENTAL, "Free at exit is experimental and may be unstable");
3252 }
3253
3254 iseq = process_options(argc, argv, cmdline_options_init(&opt));
3255
3256 if (opt.crash_report && *opt.crash_report) {
3257 void ruby_set_crash_report(const char *template);
3258 ruby_set_crash_report(opt.crash_report);
3259 }
3260
3261 return (void*)(struct RData*)iseq;
3262}
3263
3264static void
3265fill_standard_fds(void)
3266{
3267 int f0, f1, f2, fds[2];
3268 struct stat buf;
3269 f0 = fstat(0, &buf) == -1 && errno == EBADF;
3270 f1 = fstat(1, &buf) == -1 && errno == EBADF;
3271 f2 = fstat(2, &buf) == -1 && errno == EBADF;
3272 if (f0) {
3273 if (pipe(fds) == 0) {
3274 close(fds[1]);
3275 if (fds[0] != 0) {
3276 dup2(fds[0], 0);
3277 close(fds[0]);
3278 }
3279 }
3280 }
3281 if (f1 || f2) {
3282 if (pipe(fds) == 0) {
3283 close(fds[0]);
3284 if (f1 && fds[1] != 1)
3285 dup2(fds[1], 1);
3286 if (f2 && fds[1] != 2)
3287 dup2(fds[1], 2);
3288 if (fds[1] != 1 && fds[1] != 2)
3289 close(fds[1]);
3290 }
3291 }
3292}
3293
3294void
3295ruby_sysinit(int *argc, char ***argv)
3296{
3297#if defined(_WIN32)
3298 rb_w32_sysinit(argc, argv);
3299#endif
3300 if (*argc >= 0 && *argv) {
3301 origarg.argc = *argc;
3302 origarg.argv = *argv;
3303 }
3304 fill_standard_fds();
3305}
3306
3307#ifdef RUBY_ASAN_ENABLED
3308RUBY_SYMBOL_EXPORT_BEGIN
3309const char ruby_asan_default_options[] = "use_sigaltstack=0:detect_leaks=0";
3310RUBY_SYMBOL_EXPORT_END
3311#endif
RUBY_ASSERT
#define RUBY_ASSERT(...)
Asserts that the given expression is truthy if and only if RUBY_DEBUG is truthy.
Definition assert.h:219
ISSPACE
#define ISSPACE
@old{rb_isspace}
Definition ctype.h:88
STRNCASECMP
#define STRNCASECMP
@old{st_locale_insensitive_strncasecmp}
Definition ctype.h:103
TOLOWER
#define TOLOWER
@old{rb_tolower}
Definition ctype.h:101
ISALNUM
#define ISALNUM
@old{rb_isalnum}
Definition ctype.h:91
rb_define_module_function
#define rb_define_module_function(klass, mid, func, arity)
Defines klass#mid and makes it a module function.
Definition cxxanyargs.hpp:689
rb_define_global_function
#define rb_define_global_function(mid, func, arity)
Defines rb_mKernel #mid.
Definition cxxanyargs.hpp:695
RUBY_EXTERN
#define RUBY_EXTERN
Declaration of externally visible global variables.
Definition dllexport.h:45
PATH_ENV
#define PATH_ENV
Definition dosish.h:63
PATH_SEP_CHAR
#define PATH_SEP_CHAR
Identical to PATH_SEP, except it is of type char.
Definition dosish.h:49
rb_str_new2
#define rb_str_new2
Old name of rb_str_new_cstr.
Definition string.h:1676
T_STRING
#define T_STRING
Old name of RUBY_T_STRING.
Definition value_type.h:78
Qundef
#define Qundef
Old name of RUBY_Qundef.
Definition special_consts.h:62
INT2FIX
#define INT2FIX
Old name of RB_INT2FIX.
Definition long.h:48
rb_str_cat2
#define rb_str_cat2
Old name of rb_str_cat_cstr.
Definition string.h:1684
UNREACHABLE
#define UNREACHABLE
Old name of RBIMPL_UNREACHABLE.
Definition assume.h:28
OBJ_FREEZE
#define OBJ_FREEZE
Old name of RB_OBJ_FREEZE.
Definition fl_type.h:134
ECONV_UNDEF_REPLACE
#define ECONV_UNDEF_REPLACE
Old name of RUBY_ECONV_UNDEF_REPLACE.
Definition transcode.h:526
UNREACHABLE_RETURN
#define UNREACHABLE_RETURN
Old name of RBIMPL_UNREACHABLE_RETURN.
Definition assume.h:29
SIZET2NUM
#define SIZET2NUM
Old name of RB_SIZE2NUM.
Definition size_t.h:62
ENCODING_GET
#define ENCODING_GET(obj)
Old name of RB_ENCODING_GET.
Definition encoding.h:109
ECONV_INVALID_REPLACE
#define ECONV_INVALID_REPLACE
Old name of RUBY_ECONV_INVALID_REPLACE.
Definition transcode.h:524
ASSUME
#define ASSUME
Old name of RBIMPL_ASSUME.
Definition assume.h:27
Qtrue
#define Qtrue
Old name of RUBY_Qtrue.
Definition special_consts.h:61
Qnil
#define Qnil
Old name of RUBY_Qnil.
Definition special_consts.h:60
Qfalse
#define Qfalse
Old name of RUBY_Qfalse.
Definition special_consts.h:59
ENC_CODERANGE_BROKEN
#define ENC_CODERANGE_BROKEN
Old name of RUBY_ENC_CODERANGE_BROKEN.
Definition coderange.h:182
NIL_P
#define NIL_P
Old name of RB_NIL_P.
Definition special_consts.h:55
scan_oct
#define scan_oct(s, l, e)
Old name of ruby_scan_oct.
Definition util.h:85
CONST_ID
#define CONST_ID
Old name of RUBY_CONST_ID.
Definition symbol.h:47
rb_str_new4
#define rb_str_new4
Old name of rb_str_new_frozen.
Definition string.h:1678
ruby_script
void ruby_script(const char *name)
Sets the current script name to this value.
Definition ruby.c:3103
ruby_set_argv
void ruby_set_argv(int argc, char **argv)
Sets argv that ruby understands.
Definition ruby.c:3216
ruby_set_script_name
void ruby_set_script_name(VALUE name)
Sets the current script name to this value.
Definition ruby.c:3115
ruby_init_loadpath
void ruby_init_loadpath(void)
Sets up $LOAD_PATH.
Definition ruby.c:669
ruby_process_options
void * ruby_process_options(int argc, char **argv)
Identical to ruby_options(), except it raises ruby-level exceptions on failure.
Definition ruby.c:3231
ruby_prog_init
void ruby_prog_init(void)
Defines built-in variables.
Definition ruby.c:3184
ruby_incpush
void ruby_incpush(const char *path)
Appends the given path to the end of the load path.
Definition ruby.c:510
ruby_debug
#define ruby_debug
This variable controls whether the interpreter is in debug mode.
Definition error.h:486
rb_category_warn
void rb_category_warn(rb_warning_category_t category, const char *fmt,...)
Identical to rb_category_warning(), except it reports unless $VERBOSE is nil.
Definition error.c:476
rb_exc_raise
void rb_exc_raise(VALUE mesg)
Raises an exception in the current thread.
Definition eval.c:664
ruby_verbose
#define ruby_verbose
This variable controls whether the interpreter is in debug mode.
Definition error.h:475
rb_eTypeError
VALUE rb_eTypeError
TypeError exception.
Definition error.c:1431
rb_eNameError
VALUE rb_eNameError
NameError exception.
Definition error.c:1436
rb_eRuntimeError
VALUE rb_eRuntimeError
RuntimeError exception.
Definition error.c:1429
rb_ruby_verbose_ptr
VALUE * rb_ruby_verbose_ptr(void)
This is an implementation detail of ruby_verbose.
Definition vm.c:4791
rb_warn
void rb_warn(const char *fmt,...)
Identical to rb_warning(), except it reports unless $VERBOSE is nil.
Definition error.c:466
rb_exc_new_str
VALUE rb_exc_new_str(VALUE etype, VALUE str)
Identical to rb_exc_new_cstr(), except it takes a Ruby's string instead of C's.
Definition error.c:1482
rb_enc_raise
void rb_enc_raise(rb_encoding *enc, VALUE exc, const char *fmt,...)
Identical to rb_raise(), except it additionally takes an encoding.
Definition error.c:3777
rb_loaderror
void rb_loaderror(const char *fmt,...)
Raises an instance of rb_eLoadError.
Definition error.c:3816
rb_ruby_debug_ptr
VALUE * rb_ruby_debug_ptr(void)
This is an implementation detail of ruby_debug.
Definition vm.c:4798
rb_eSecurityError
VALUE rb_eSecurityError
SecurityError exception.
Definition error.c:1440
rb_warning
void rb_warning(const char *fmt,...)
Issues a warning.
Definition error.c:497
RB_WARN_CATEGORY_STRICT_UNUSED_BLOCK
@ RB_WARN_CATEGORY_STRICT_UNUSED_BLOCK
Warning is for checking unused block strictly.
Definition error.h:57
RB_WARN_CATEGORY_DEPRECATED
@ RB_WARN_CATEGORY_DEPRECATED
Warning is for deprecated features.
Definition error.h:48
RB_WARN_CATEGORY_EXPERIMENTAL
@ RB_WARN_CATEGORY_EXPERIMENTAL
Warning is for experimental features.
Definition error.h:51
RB_WARN_CATEGORY_PERFORMANCE
@ RB_WARN_CATEGORY_PERFORMANCE
Warning is for performance issues (not enabled by -w).
Definition error.h:54
rb_mProcess
VALUE rb_mProcess
Process module.
Definition process.c:8731
rb_class_new_instance
VALUE rb_class_new_instance(int argc, const VALUE *argv, VALUE klass)
Allocates, then initialises an instance of the given class.
Definition object.c:2249
rb_stdin
VALUE rb_stdin
STDIN constant.
Definition io.c:201
rb_obj_freeze
VALUE rb_obj_freeze(VALUE obj)
Just calls rb_obj_freeze_inline() inside.
Definition object.c:1342
rb_stdout
VALUE rb_stdout
STDOUT constant.
Definition io.c:201
rb_cString
VALUE rb_cString
String class.
Definition string.c:84
ruby_show_copyright
void ruby_show_copyright(void)
Prints the copyright notice of the CRuby interpreter to stdout.
Definition version.c:302
ruby_sysinit
void ruby_sysinit(int *argc, char ***argv)
Initializes the process for libruby.
Definition ruby.c:3295
ruby_show_version
void ruby_show_version(void)
Prints the version information of the CRuby interpreter to stdout.
Definition version.c:288
encoding.h
Encoding relates APIs.
rb_utf8_encoding
rb_encoding * rb_utf8_encoding(void)
Queries the encoding that represents UTF-8.
Definition encoding.c:1535
rb_ascii8bit_encoding
rb_encoding * rb_ascii8bit_encoding(void)
Queries the encoding that represents ASCII-8BIT a.k.a.
Definition encoding.c:1523
rb_default_internal_encoding
rb_encoding * rb_default_internal_encoding(void)
Queries the "default internal" encoding.
Definition encoding.c:1743
rb_default_external_encoding
rb_encoding * rb_default_external_encoding(void)
Queries the "default external" encoding.
Definition encoding.c:1656
rb_locale_encoding
rb_encoding * rb_locale_encoding(void)
Queries the encoding that represents the current locale.
Definition encoding.c:1586
rb_str_conv_enc
VALUE rb_str_conv_enc(VALUE str, rb_encoding *from, rb_encoding *to)
Encoding conversion main routine.
Definition string.c:1342
rb_str_conv_enc_opts
VALUE rb_str_conv_enc_opts(VALUE str, rb_encoding *from, rb_encoding *to, int ecflags, VALUE ecopts)
Identical to rb_str_conv_enc(), except it additionally takes IO encoder options.
Definition string.c:1226
rb_enc_interned_str
VALUE rb_enc_interned_str(const char *ptr, long len, rb_encoding *enc)
Identical to rb_enc_str_new(), except it returns a "f"string.
Definition string.c:12728
error.h
Declares rb_raise().
rb_funcall_passing_block
VALUE rb_funcall_passing_block(VALUE recv, ID mid, int argc, const VALUE *argv)
Identical to rb_funcallv_public(), except you can pass the passed block.
Definition vm_eval.c:1180
rb_funcall
VALUE rb_funcall(VALUE recv, ID mid, int n,...)
Calls a method.
Definition vm_eval.c:1117
rb_ary_shift
VALUE rb_ary_shift(VALUE ary)
Destructively deletes an element from the beginning of the passed array and returns what was deleted.
rb_ary_modify
void rb_ary_modify(VALUE ary)
Declares that the array is about to be modified.
rb_ary_replace
VALUE rb_ary_replace(VALUE copy, VALUE orig)
Replaces the contents of the former object with the contents of the latter.
rb_ary_hidden_new
VALUE rb_ary_hidden_new(long capa)
Allocates a hidden (no class) empty array.
rb_ary_clear
VALUE rb_ary_clear(VALUE ary)
Destructively removes everything form an array.
rb_ary_push
VALUE rb_ary_push(VALUE ary, VALUE elem)
Special case of rb_ary_cat() that it adds only one element.
rb_hash_new
VALUE rb_hash_new(void)
Creates a new, empty hash object.
Definition hash.c:1484
rb_io_gets
VALUE rb_io_gets(VALUE io)
Reads a "line" from the given IO.
Definition io.c:4326
rb_io_ungetbyte
VALUE rb_io_ungetbyte(VALUE io, VALUE b)
Identical to rb_io_ungetc(), except it doesn't take the encoding of the passed IO into account.
Definition io.c:5191
rb_io_getbyte
VALUE rb_io_getbyte(VALUE io)
Reads a byte from the given IO.
Definition io.c:5097
rb_io_fdopen
VALUE rb_io_fdopen(int fd, int flags, const char *path)
Creates an IO instance whose backend is the given file descriptor.
Definition io.c:9358
rb_update_max_fd
void rb_update_max_fd(int fd)
Informs the interpreter that the passed fd can be the max.
Definition io.c:248
rb_cloexec_open
int rb_cloexec_open(const char *pathname, int flags, mode_t mode)
Opens a file that closes on exec.
Definition io.c:328
rb_fs
VALUE rb_fs
The field separator character for inputs, or the $;.
Definition string.c:714
rb_output_rs
VALUE rb_output_rs
The record separator character for outputs, or the $\\endiskip.
Definition io.c:206
rb_pipe
int rb_pipe(int *pipes)
This is an rb_cloexec_pipe() + rb_update_max_fd() combo.
Definition io.c:7408
rb_io_close
VALUE rb_io_close(VALUE io)
Closes the IO.
Definition io.c:5773
rb_lastline_set
void rb_lastline_set(VALUE str)
Updates $_.
Definition vm.c:2048
rb_lastline_get
VALUE rb_lastline_get(void)
Queries the last line, or the $_.
Definition vm.c:2042
rb_waitpid
rb_pid_t rb_waitpid(rb_pid_t pid, int *status, int flags)
Waits for a process, with releasing GVL.
Definition process.c:1168
rb_f_exec
VALUE rb_f_exec(int argc, const VALUE *argv)
Replaces the current process by running the given external command.
Definition process.c:2917
rb_reg_new
VALUE rb_reg_new(const char *src, long len, int opts)
Creates a new Regular expression.
Definition re.c:3476
rb_utf8_str_new_cstr
#define rb_utf8_str_new_cstr(str)
Identical to rb_str_new_cstr, except it generates a string of "UTF-8" encoding.
Definition string.h:1584
rb_str_new_lit
#define rb_str_new_lit(str)
Identical to rb_str_new_static(), except it cannot take string variables.
Definition string.h:1706
rb_str_tmp_new
VALUE rb_str_tmp_new(long len)
Allocates a "temporary" string.
Definition string.c:1746
rb_str_subseq
VALUE rb_str_subseq(VALUE str, long beg, long len)
Identical to rb_str_substr(), except the numbers are interpreted as byte offsets instead of character...
Definition string.c:3155
rb_str_new
#define rb_str_new(str, len)
Allocates an instance of rb_cString.
Definition string.h:1499
rb_str_new_frozen
VALUE rb_str_new_frozen(VALUE str)
Creates a frozen copy of the string, if necessary.
Definition string.c:1518
rb_str_dup
VALUE rb_str_dup(VALUE str)
Duplicates a string.
Definition string.c:1996
rb_str_cat
VALUE rb_str_cat(VALUE dst, const char *src, long srclen)
Destructively appends the passed contents to the string.
Definition string.c:3567
rb_external_str_new_cstr
#define rb_external_str_new_cstr(str)
Identical to rb_str_new_cstr, except it generates a string of "defaultexternal" encoding.
Definition string.h:1605
rb_str_set_len
void rb_str_set_len(VALUE str, long len)
Overwrites the length of the string.
Definition string.c:3389
rb_strlen_lit
#define rb_strlen_lit(str)
Length of a string literal.
Definition string.h:1693
rb_str_freeze
VALUE rb_str_freeze(VALUE str)
This is the implementation of String#freeze.
Definition string.c:3280
rb_str_cat_cstr
#define rb_str_cat_cstr(buf, str)
Identical to rb_str_cat(), except it assumes the passed pointer is a pointer to a C string.
Definition string.h:1657
rb_utf8_str_new
#define rb_utf8_str_new(str, len)
Identical to rb_str_new, except it generates a string of "UTF-8" encoding.
Definition string.h:1550
rb_str_modify_expand
void rb_str_modify_expand(VALUE str, long capa)
Identical to rb_str_modify(), except it additionally expands the capacity of the receiver.
Definition string.c:2746
rb_str_new_cstr
#define rb_str_new_cstr(str)
Identical to rb_str_new, except it assumes the passed pointer is a pointer to a C string.
Definition string.h:1515
rb_const_get
VALUE rb_const_get(VALUE space, ID name)
Identical to rb_const_defined(), except it returns the actual defined value.
Definition variable.c:3505
rb_ivar_set
VALUE rb_ivar_set(VALUE obj, ID name, VALUE val)
Identical to rb_iv_set(), except it accepts the name as an ID instead of a C string.
Definition variable.c:2030
rb_intern_const
static ID rb_intern_const(const char *str)
This is a "tiny optimisation" over rb_intern().
Definition symbol.h:285
rb_define_global_const
void rb_define_global_const(const char *name, VALUE val)
Identical to rb_define_const(), except it defines that of "global", i.e.
Definition variable.c:4092
rb_gvar_readonly_setter
rb_gvar_setter_t rb_gvar_readonly_setter
This function just raises rb_eNameError.
Definition variable.h:135
rb_gv_set
VALUE rb_gv_set(const char *name, VALUE val)
Assigns to a global variable.
Definition variable.c:1046
RUBY_IO_READABLE
@ RUBY_IO_READABLE
IO::READABLE
Definition io.h:97
rb_io_wait
VALUE rb_io_wait(VALUE io, VALUE events, VALUE timeout)
Blocks until the passed IO is ready for the passed events.
Definition io.c:1482
len
int len
Length of the buffer.
Definition io.h:8
thread.h
util.h
ruby_each_words
void ruby_each_words(const char *str, void(*func)(const char *word, int len, void *argv), void *argv)
Scans the passed string, with calling the callback function every time it encounters a "word".
Definition util.c:596
version.h
ruby_engine
const char ruby_engine[]
This is just "ruby" for us.
Definition version.c:98
ruby_patchlevel
const int ruby_patchlevel
This is a monotonic increasing integer that describes specific "patch" level.
Definition version.c:86
RB_INT2NUM
#define RB_INT2NUM
Just another name of rb_int2num_inline.
Definition int.h:37
RB_ALLOCV_N
#define RB_ALLOCV_N(type, v, n)
Allocates a memory region, possibly on stack.
Definition memory.h:336
MEMZERO
#define MEMZERO(p, type, n)
Handy macro to erase a region of memory.
Definition memory.h:360
RB_ALLOCV_END
#define RB_ALLOCV_END(v)
Polite way to declare that the given array is not used any longer.
Definition memory.h:349
MEMMOVE
#define MEMMOVE(p1, p2, type, n)
Handy macro to call memmove.
Definition memory.h:384
ruby::backward::cxxanyargs::rb_define_hooked_variable
void rb_define_hooked_variable(const char *q, VALUE *w, type *e, void_type *r)
Define a function-backended global variable.
Definition cxxanyargs.hpp:136
ruby::backward::cxxanyargs::type
VALUE type(ANYARGS)
ANYARGS-ed function type.
Definition cxxanyargs.hpp:56
ruby::backward::cxxanyargs::rb_define_virtual_variable
void rb_define_virtual_variable(const char *q, type *w, void_type *e)
Define a function-backended global variable.
Definition cxxanyargs.hpp:73
ruby::backward::cxxanyargs::rb_ensure
VALUE rb_ensure(type *q, VALUE w, type *e, VALUE r)
An equivalent of ensure clause.
Definition cxxanyargs.hpp:310
PM_OPTIONS_COMMAND_LINE_E
static const uint8_t PM_OPTIONS_COMMAND_LINE_E
A bit representing whether or not the command line -e option was set.
Definition options.h:213
PM_OPTIONS_COMMAND_LINE_L
static const uint8_t PM_OPTIONS_COMMAND_LINE_L
A bit representing whether or not the command line -l option was set.
Definition options.h:219
pm_options_t
struct pm_options pm_options_t
The options that can be passed to the parser.
PM_OPTIONS_COMMAND_LINE_A
static const uint8_t PM_OPTIONS_COMMAND_LINE_A
A bit representing whether or not the command line -a option was set.
Definition options.h:206
PM_OPTIONS_COMMAND_LINE_N
static const uint8_t PM_OPTIONS_COMMAND_LINE_N
A bit representing whether or not the command line -n option was set.
Definition options.h:225
PM_OPTIONS_COMMAND_LINE_X
static const uint8_t PM_OPTIONS_COMMAND_LINE_X
A bit representing whether or not the command line -x option was set.
Definition options.h:237
PM_OPTIONS_COMMAND_LINE_P
static const uint8_t PM_OPTIONS_COMMAND_LINE_P
A bit representing whether or not the command line -p option was set.
Definition options.h:231
pm_parser_t
struct pm_parser pm_parser_t
The parser used to parse Ruby source.
Definition parser.h:267
RARRAY_LEN
#define RARRAY_LEN
Just another name of rb_array_len.
Definition rarray.h:51
RARRAY_ASET
static void RARRAY_ASET(VALUE ary, long i, VALUE v)
Assigns an object in an array.
Definition rarray.h:386
RARRAY_AREF
#define RARRAY_AREF(a, i)
Definition rarray.h:403
RARRAY_CONST_PTR
#define RARRAY_CONST_PTR
Just another name of rb_array_const_ptr.
Definition rarray.h:52
RFILE
#define RFILE(obj)
Convenient casting macro.
Definition rfile.h:50
StringValuePtr
#define StringValuePtr(v)
Identical to StringValue, except it returns a char*.
Definition rstring.h:76
RSTRING_LENINT
static int RSTRING_LENINT(VALUE str)
Identical to RSTRING_LEN(), except it differs for the return type.
Definition rstring.h:438
RSTRING_GETMEM
#define RSTRING_GETMEM(str, ptrvar, lenvar)
Convenient macro to obtain the contents and length at once.
Definition rstring.h:450
StringValueCStr
#define StringValueCStr(v)
Identical to StringValuePtr, except it additionally checks for the contents for viability as a C stri...
Definition rstring.h:89
rb_argv0
VALUE rb_argv0
The value of $0 at process bootup.
Definition ruby.c:1916
rb_load_file_str
void * rb_load_file_str(VALUE file)
Identical to rb_load_file(), except it takes the argument as a Ruby's string instead of C's.
Definition ruby.c:3007
rb_load_file
void * rb_load_file(const char *file)
Loads the given file.
Definition ruby.c:3000
rb_argv
#define rb_argv
Just another name of rb_get_argv.
Definition ruby.h:31
rb_obj_classname
const char * rb_obj_classname(VALUE obj)
Queries the name of the class of the passed object.
Definition variable.c:515
errno
#define errno
Ractor-aware version of errno.
Definition ruby.h:388
RTEST
#define RTEST
This is an old name of RB_TEST.
Definition special_consts.h:51
_
#define _(args)
This was a transition path from K&R to ANSI.
Definition stdarg.h:35
RData
Definition rdata.h:120
load_file_arg
Definition ruby.c:2738
pm_buffer_t
A pm_buffer_t is a simple memory buffer that stores data in a contiguous block of memory.
Definition pm_buffer.h:22
pm_buffer_t::length
size_t length
The length of the buffer in bytes.
Definition pm_buffer.h:24
pm_buffer_t::value
char * value
A pointer to the start of the buffer.
Definition pm_buffer.h:30
pm_location_t::start
const uint8_t * start
A pointer to the start location of the range in the source.
Definition ast.h:546
pm_parse_result_t
Definition prism_compile.h:69
pm_parse_result_t::node
pm_scope_node_t node
The resulting scope node that will hold the generated AST.
Definition prism_compile.h:80
pm_parse_result_t::parser
pm_parser_t parser
The parser that will do the actual parsing.
Definition prism_compile.h:71
pm_parse_result_t::options
pm_options_t options
The options that will be passed to the parser.
Definition prism_compile.h:74
pm_parser::data_loc
pm_location_t data_loc
An optional location that represents the location of the END marker and the rest of the content of th...
Definition parser.h:731
pm_parser::start
const uint8_t * start
The pointer to the start of the source.
Definition parser.h:694
rb_binding_t
Definition vm_core.h:1314
rb_block
Definition vm_core.h:903
ruby_features_t
Definition cmdlineopt.h:6
ruby_opt_message
Definition cmdlineopt.h:47
__attribute__
Definition vm_insnhelper.c:2410
U
Definition dtoa.c:309
ID
uintptr_t ID
Type that represents a Ruby identifier such as a variable name.
Definition value.h:52
VALUE
uintptr_t VALUE
Type that represents a Ruby object.
Definition value.h:40
RB_TYPE_P
static bool RB_TYPE_P(VALUE obj, enum ruby_value_type t)
Queries if the given object is of given type.
Definition value_type.h:376