diff options
Diffstat (limited to 'ruby.c')
| -rw-r--r-- | ruby.c | 3767 |
1 files changed, 3098 insertions, 669 deletions
@@ -1,826 +1,3255 @@ -/************************************************ +/********************************************************************** ruby.c - $Author$ - $Date$ created at: Tue Aug 10 12:47:31 JST 1993 - Copyright (C) 1993-1998 Yukihiro Matsumoto + Copyright (C) 1993-2007 Yukihiro Matsumoto + Copyright (C) 2000 Network Applied Communication Laboratory, Inc. + Copyright (C) 2000 Information-technology Promotion Agency, Japan -************************************************/ +**********************************************************************/ -#ifdef _WIN32 -#include <windows.h> -#endif -#include "ruby.h" -#include "dln.h" +#include "ruby/internal/config.h" + +#include <ctype.h> #include <stdio.h> #include <sys/types.h> -#include <fcntl.h> -#include <ctype.h> -#ifdef HAVE_UNISTD_H -#include <unistd.h> +#ifdef __CYGWIN__ +# include <windows.h> +# include <sys/cygwin.h> #endif -#ifdef __MWERKS__ -#include "node.h" +#if defined(LOAD_RELATIVE) && defined(HAVE_DLADDR) +# include <dlfcn.h> +#endif + +#ifdef HAVE_UNISTD_H +# include <unistd.h> #endif -void show_version(); -void show_copyright(); +#if defined(HAVE_FCNTL_H) +# include <fcntl.h> +#elif defined(HAVE_SYS_FCNTL_H) +# include <sys/fcntl.h> +#endif -#ifdef USE_CWGUSI -#include "macruby_missing.h" +#ifdef HAVE_SYS_PARAM_H +# include <sys/param.h> #endif -#ifndef HAVE_STRING_H -char *strchr _((char*,char)); -char *strrchr _((char*,char)); -char *strstr _((char*,char*)); +#include "dln.h" +#include "eval_intern.h" +#include "internal.h" +#include "internal/cmdlineopt.h" +#include "internal/cont.h" +#include "internal/error.h" +#include "internal/file.h" +#include "internal/inits.h" +#include "internal/io.h" +#include "internal/load.h" +#include "internal/loadpath.h" +#include "internal/missing.h" +#include "internal/object.h" +#include "internal/thread.h" +#include "internal/ruby_parser.h" +#include "internal/variable.h" +#include "ruby/encoding.h" +#include "ruby/thread.h" +#include "ruby/util.h" +#include "ruby/version.h" +#include "ruby/internal/error.h" + +#define singlebit_only_p(x) !((x) & ((x)-1)) +STATIC_ASSERT(Qnil_1bit_from_Qfalse, singlebit_only_p(Qnil^Qfalse)); +STATIC_ASSERT(Qundef_1bit_from_Qnil, singlebit_only_p(Qundef^Qnil)); + +#ifndef MAXPATHLEN +# define MAXPATHLEN 1024 +#endif +#ifndef O_ACCMODE +# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR) #endif -char *ruby_mktemp _((void)); +void Init_ruby_description(ruby_cmdline_options_t *opt); +#ifndef HAVE_STDLIB_H char *getenv(); +#endif -static int version, copyright; +#ifndef DISABLE_RUBYGEMS +# define DISABLE_RUBYGEMS 0 +#endif +#if DISABLE_RUBYGEMS +#define DEFAULT_RUBYGEMS_ENABLED "disabled" +#else +#define DEFAULT_RUBYGEMS_ENABLED "enabled" +#endif -VALUE debug = FALSE; -VALUE verbose = FALSE; -int tainting = FALSE; -static int sflag = FALSE; +void rb_warning_category_update(unsigned int mask, unsigned int bits); + +#define COMMA , +#define FEATURE_BIT(bit) (1U << feature_##bit) +#define EACH_FEATURES(X, SEP) \ + X(gems) \ + SEP \ + X(error_highlight) \ + SEP \ + X(did_you_mean) \ + SEP \ + X(syntax_suggest) \ + SEP \ + X(rubyopt) \ + SEP \ + X(frozen_string_literal) \ + SEP \ + X(yjit) \ + SEP \ + X(zjit) \ + /* END OF FEATURES */ +#define EACH_DEBUG_FEATURES(X, SEP) \ + X(frozen_string_literal) \ + /* END OF DEBUG FEATURES */ +#define AMBIGUOUS_FEATURE_NAMES 0 /* no ambiguous feature names now */ +#define DEFINE_FEATURE(bit) feature_##bit +#define DEFINE_DEBUG_FEATURE(bit) feature_debug_##bit +enum feature_flag_bits { + EACH_FEATURES(DEFINE_FEATURE, COMMA), + DEFINE_FEATURE(frozen_string_literal_set), + feature_debug_flag_first, +#if !USE_YJIT && USE_ZJIT + DEFINE_FEATURE(jit) = feature_zjit, +#else + DEFINE_FEATURE(jit) = feature_yjit, +#endif + feature_jit_mask = FEATURE_BIT(yjit) | FEATURE_BIT(zjit), + + feature_debug_flag_begin = feature_debug_flag_first - 1, + EACH_DEBUG_FEATURES(DEFINE_DEBUG_FEATURE, COMMA), + feature_flag_count +}; + +#define MULTI_BITS_P(bits) ((bits) & ((bits) - 1)) + +#define DEBUG_BIT(bit) (1U << feature_debug_##bit) + +#define DUMP_BIT(bit) (1U << dump_##bit) +#define DEFINE_DUMP(bit) dump_##bit +#define EACH_DUMPS(X, SEP) \ + X(version) \ + SEP \ + X(copyright) \ + SEP \ + X(usage) \ + SEP \ + X(help) \ + SEP \ + X(yydebug) \ + SEP \ + X(syntax) \ + SEP \ + X(parsetree) \ + SEP \ + X(insns) \ + /* END OF DUMPS */ +enum dump_flag_bits { + dump_version_v, + dump_opt_error_tolerant, + dump_opt_comment, + dump_opt_optimize, + EACH_DUMPS(DEFINE_DUMP, COMMA), + dump_exit_bits = (DUMP_BIT(yydebug) | DUMP_BIT(syntax) | + DUMP_BIT(parsetree) | DUMP_BIT(insns)), + dump_optional_bits = (DUMP_BIT(opt_error_tolerant) | + DUMP_BIT(opt_comment) | + DUMP_BIT(opt_optimize)) +}; + +static inline void +rb_feature_set_to(ruby_features_t *feat, unsigned int bit_mask, unsigned int bit_set) +{ + feat->mask |= bit_mask; + feat->set = (feat->set & ~bit_mask) | bit_set; +} + +#define FEATURE_SET_TO(feat, bit_mask, bit_set) \ + rb_feature_set_to(&(feat), bit_mask, bit_set) +#define FEATURE_SET(feat, bits) FEATURE_SET_TO(feat, bits, bits) +#define FEATURE_SET_RESTORE(feat, save) FEATURE_SET_TO(feat, (save).mask, (save).set & (save).mask) +#define FEATURE_SET_P(feat, bits) ((feat).set & FEATURE_BIT(bits)) +#define FEATURE_USED_P(feat, bits) ((feat).mask & FEATURE_BIT(bits)) +#define FEATURE_SET_BITS(feat) ((feat).set & (feat).mask) + +static void init_ids(ruby_cmdline_options_t *); + +#define src_encoding_index GET_VM()->src_encoding_index + +enum { + COMPILATION_FEATURES = ( + 0 + | FEATURE_BIT(frozen_string_literal) + | FEATURE_BIT(frozen_string_literal_set) + | FEATURE_BIT(debug_frozen_string_literal) + ), + DEFAULT_FEATURES = ( + (FEATURE_BIT(debug_flag_first)-1) +#if DISABLE_RUBYGEMS + & ~FEATURE_BIT(gems) +#endif + & ~FEATURE_BIT(frozen_string_literal) + & ~FEATURE_BIT(frozen_string_literal_set) + & ~feature_jit_mask + ) +}; + +#define BACKTRACE_LENGTH_LIMIT_VALID_P(n) ((n) >= -1) +#define OPT_BACKTRACE_LENGTH_LIMIT_VALID_P(opt) \ + BACKTRACE_LENGTH_LIMIT_VALID_P((opt)->backtrace_length_limit) + +static ruby_cmdline_options_t * +cmdline_options_init(ruby_cmdline_options_t *opt) +{ + MEMZERO(opt, *opt, 1); + init_ids(opt); + opt->src.enc.index = src_encoding_index; + opt->ext.enc.index = -1; + opt->intern.enc.index = -1; + opt->features.set = DEFAULT_FEATURES; +#if defined(YJIT_FORCE_ENABLE) + opt->features.set |= FEATURE_BIT(yjit); +#endif + opt->dump |= DUMP_BIT(opt_optimize); + opt->backtrace_length_limit = LONG_MIN; -char *inplace = FALSE; -char *strdup(); + return opt; +} -extern char *sourcefile; -extern int yydebug; -extern int nerrs; +static VALUE load_file(VALUE parser, VALUE fname, VALUE f, int script, + ruby_cmdline_options_t *opt); +static VALUE open_load_file(VALUE fname_v, int *xflag); +static void forbid_setid(const char *, const ruby_cmdline_options_t *); +#define forbid_setid(s) forbid_setid((s), opt) -static int xflag = FALSE; -extern VALUE RS, RS_default, ORS, FS; +static struct { + int argc; + char **argv; +} origarg; -static void load_stdin _((void)); -static void load_file _((char *, int)); -static void forbid_setid _((char *)); +static const char esc_standout[] = "\n\033[1;7m"; +static const char esc_bold[] = "\033[1m"; +static const char esc_reset[] = "\033[0m"; +static const char esc_none[] = ""; +#define USAGE_INDENT " " /* macro for concatenation */ + +static void +show_usage_part(const char *str, const unsigned int namelen, + const char *str2, const unsigned int secondlen, + const char *desc, + int help, int highlight, unsigned int w, int columns) +{ + static const int indent_width = (int)rb_strlen_lit(USAGE_INDENT); + const char *sb = highlight ? esc_bold : esc_none; + const char *se = highlight ? esc_reset : esc_none; + unsigned int desclen = (unsigned int)strcspn(desc, "\n"); + if (!help && desclen > 0 && strchr(".;:", desc[desclen-1])) --desclen; + if (help && (namelen + 1 > w) && /* a padding space */ + (int)(namelen + secondlen + indent_width) >= columns) { + printf(USAGE_INDENT "%s" "%.*s" "%s\n", sb, namelen, str, se); + if (secondlen > 0) { + const int second_end = secondlen; + int n = 0; + if (str2[n] == ',') n++; + if (str2[n] == ' ') n++; + printf(USAGE_INDENT "%s" "%.*s" "%s\n", sb, second_end-n, str2+n, se); + } + printf("%-*s%.*s\n", w + indent_width, USAGE_INDENT, desclen, desc); + } + else { + const int wrap = help && namelen + secondlen >= w; + printf(USAGE_INDENT "%s%.*s%-*.*s%s%-*s%.*s\n", sb, namelen, str, + (wrap ? 0 : w - namelen), + (help ? secondlen : 0), str2, se, + (wrap ? (int)(w + rb_strlen_lit("\n" USAGE_INDENT)) : 0), + (wrap ? "\n" USAGE_INDENT : ""), + desclen, desc); + } + if (help) { + while (desc[desclen]) { + desc += desclen + rb_strlen_lit("\n"); + desclen = (unsigned int)strcspn(desc, "\n"); + printf("%-*s%.*s\n", w + indent_width, USAGE_INDENT, desclen, desc); + } + } +} + +static void +show_usage_line(const struct ruby_opt_message *m, + int help, int highlight, unsigned int w, int columns) +{ + const char *str = m->str; + const unsigned int namelen = m->namelen, secondlen = m->secondlen; + const char *desc = str + namelen + secondlen; + show_usage_part(str, namelen - 1, str + namelen, secondlen - 1, desc, + help, highlight, w, columns); +} -static VALUE do_loop = FALSE, do_print = FALSE; -static VALUE do_check = FALSE, do_line = FALSE; -static VALUE do_split = FALSE; +void +ruby_show_usage_line(const char *name, const char *secondary, const char *description, + int help, int highlight, unsigned int width, int columns) +{ + unsigned int namelen = (unsigned int)strlen(name); + unsigned int secondlen = (secondary ? (unsigned int)strlen(secondary) : 0); + show_usage_part(name, namelen, secondary, secondlen, + description, help, highlight, width, columns); +} -static char *script; +RUBY_EXTERN const char ruby_api_version_name[]; -static int origargc; -static char **origargv; +static void +usage(const char *name, int help, int highlight, int columns) +{ +#define M(shortopt, longopt, desc) RUBY_OPT_MESSAGE(shortopt, longopt, desc) -extern int sourceline; -extern char *sourcefile; +#if USE_YJIT +# define DEFAULT_JIT_OPTION "--yjit" +#elif USE_ZJIT +# define DEFAULT_JIT_OPTION "--zjit" +#endif -#ifndef RUBY_LIB -#define RUBY_LIB "/usr/local/lib/ruby" + /* This message really ought to be max 23 lines. + * Removed -h because the user already knows that option. Others? */ + static const struct ruby_opt_message usage_msg[] = { + M("-0[octal]", "", "Set input record separator ($/):\n" + "-0 for \\0; -00 for paragraph mode; -0777 for slurp mode."), + M("-a", "", "Split each input line ($_) into fields ($F)."), + M("-c", "", "Check syntax (no execution)."), + M("-Cdirpath", "", "Execute program in specified directory."), + M("-d", ", --debug", "Set debugging flag ($DEBUG) and $VERBOSE to true."), + M("-e 'code'", "", "Execute given Ruby code; multiple -e allowed."), + M("-Eex[:in]", ", --encoding=ex[:in]", "Set default external and internal encodings."), + M("-Fpattern", "", "Set input field separator ($;); used with -a."), + M("-i[extension]", "", "Set ARGF in-place mode;\n" + "create backup files with given extension."), + M("-Idirpath", "", "Prepend specified directory to load paths ($LOAD_PATH);\n" + "relative paths are expanded; multiple -I are allowed."), + M("-l", "", "Set output record separator ($\\) to $/;\n" + "used for line-oriented output."), + M("-n", "", "Run program in gets loop."), + M("-p", "", "Like -n, with printing added."), + M("-rlibrary", "", "Require the given library."), + M("-s", "", "Define global variables using switches following program path."), + M("-S", "", "Search directories found in the PATH environment variable."), + M("-v", "", "Print version; set $VERBOSE to true."), + M("-w", "", "Synonym for -W1."), + M("-W[level=2|:category]", "", "Set warning flag ($-W):\n" + "0 for silent; 1 for moderate; 2 for verbose."), + M("-x[dirpath]", "", "Execute Ruby code starting from a #!ruby line."), +#if USE_YJIT || USE_ZJIT + M("--jit", "", "Enable the default JIT for the build; same as " DEFAULT_JIT_OPTION "."), +#endif +#if USE_YJIT + M("--yjit", "", "Enable in-process JIT compiler."), +#endif +#if USE_ZJIT + M("--zjit", "", "Enable method-based JIT compiler."), +#endif + M("-h", "", "Print this help message; use --help for longer message."), + }; + STATIC_ASSERT(usage_msg_size, numberof(usage_msg) < 26); + + static const struct ruby_opt_message help_msg[] = { + M("--backtrace-limit=num", "", "Set backtrace limit."), + M("--copyright", "", "Print Ruby copyright."), + M("--crash-report=template", "", "Set template for crash report file."), + M("--disable=features", "", "Disable features; see list below."), + M("--dump=items", "", "Dump items; see list below."), + M("--enable=features", "", "Enable features; see list below."), + M("--external-encoding=encoding", "", "Set default external encoding."), + M("--help", "", "Print long help message; use -h for short message."), + M("--internal-encoding=encoding", "", "Set default internal encoding."), + M("--parser=parser", "", "Set Ruby parser: parse.y or prism."), + M("--verbose", "", "Set $VERBOSE to true; ignore input from $stdin."), + M("--version", "", "Print Ruby version."), + M("-y", ", --yydebug", "Print parser log; backward compatibility not guaranteed."), + }; + static const struct ruby_opt_message dumps[] = { + M("insns", "", "Instruction sequences."), + M("yydebug", "", "yydebug of yacc parser generator."), + M("parsetree", "", "Abstract syntax tree (AST)."), + M("-optimize", "", "Disable optimization (affects insns)."), + M("+error-tolerant", "", "Error-tolerant parsing (affects yydebug, parsetree)."), + M("+comment", "", "Add comments to AST (affects parsetree with --parser=parse.y)."), + }; + static const struct ruby_opt_message features[] = { + M("gems", "", "Rubygems (only for debugging, default: "DEFAULT_RUBYGEMS_ENABLED")."), + M("error_highlight", "", "error_highlight (default: "DEFAULT_RUBYGEMS_ENABLED")."), + M("did_you_mean", "", "did_you_mean (default: "DEFAULT_RUBYGEMS_ENABLED")."), + M("syntax_suggest", "", "syntax_suggest (default: "DEFAULT_RUBYGEMS_ENABLED")."), + M("rubyopt", "", "RUBYOPT environment variable (default: enabled)."), + M("frozen-string-literal", "", "Freeze all string literals (default: disabled)."), +#if USE_YJIT + M("yjit", "", "In-process JIT compiler (default: disabled)."), #endif -#ifndef RUBY_SITE_LIB -#define RUBY_SITE_LIB "/usr/local/lib/site_ruby" +#if USE_ZJIT + M("zjit", "", "Method-based JIT compiler (default: disabled)."), #endif + }; + static const struct ruby_opt_message warn_categories[] = { + M("deprecated", "", "Deprecated features."), + M("experimental", "", "Experimental features."), + M("performance", "", "Performance issues."), + M("strict_unused_block", "", "Warning unused block strictly"), + }; + int i; + const char *sb = highlight ? esc_standout+1 : esc_none; + const char *se = highlight ? esc_reset : esc_none; + const int num = numberof(usage_msg) - (help ? 1 : 0); + unsigned int w = (columns > 80 ? (columns - 79) / 2 : 0) + 16; +#define SHOW(m) show_usage_line(&(m), help, highlight, w, columns) + + printf("%sUsage:%s %s [options] [--] [filepath] [arguments]\n", sb, se, name); + for (i = 0; i < num; ++i) + SHOW(usage_msg[i]); + + if (!help) return; + + if (highlight) sb = esc_standout; + + for (i = 0; i < numberof(help_msg); ++i) + SHOW(help_msg[i]); + printf("%s""Dump List:%s\n", sb, se); + for (i = 0; i < numberof(dumps); ++i) + SHOW(dumps[i]); + printf("%s""Features:%s\n", sb, se); + for (i = 0; i < numberof(features); ++i) + SHOW(features[i]); + printf("%s""Warning categories:%s\n", sb, se); + for (i = 0; i < numberof(warn_categories); ++i) + SHOW(warn_categories[i]); +#if USE_YJIT + printf("%s""YJIT options:%s\n", sb, se); + rb_yjit_show_usage(help, highlight, w, columns); +#endif +#if USE_ZJIT + printf("%s""ZJIT options:%s\n", sb, se); + extern void rb_zjit_show_usage(int help, int highlight, unsigned int width, int columns); + rb_zjit_show_usage(help, highlight, w, columns); +#endif +} + +#define rubylib_path_new rb_str_new -#if defined(MSDOS) || defined(NT) || defined(__MACOS__) -#define RUBY_LIB_SEP ';' +static void +ruby_push_include(const char *path, VALUE (*filter)(VALUE)) +{ + const char sep = PATH_SEP_CHAR; + const char *p, *s; + VALUE load_path = rb_root_box()->load_path; +#ifdef __CYGWIN__ + char rubylib[FILENAME_MAX]; + VALUE buf = 0; +# define is_path_sep(c) ((c) == sep || (c) == ';') #else -#define RUBY_LIB_SEP ':' +# define is_path_sep(c) ((c) == sep) #endif -extern VALUE rb_load_path; + if (path == 0) return; + p = path; + while (*p) { + long len; + while (is_path_sep(*p)) + p++; + if (!*p) break; + for (s = p; *s && !is_path_sep(*s); s = CharNext(s)); + len = s - p; +#undef is_path_sep + +#ifdef __CYGWIN__ + if (*s) { + if (!buf) { + buf = rb_str_new(p, len); + p = RSTRING_PTR(buf); + } + else { + rb_str_resize(buf, len); + p = strncpy(RSTRING_PTR(buf), p, len); + } + } +#ifdef HAVE_CYGWIN_CONV_PATH +#define CONV_TO_POSIX_PATH(p, lib) \ + cygwin_conv_path(CCP_WIN_A_TO_POSIX|CCP_RELATIVE, (p), (lib), sizeof(lib)) +#else +# error no cygwin_conv_path +#endif + if (CONV_TO_POSIX_PATH(p, rubylib) == 0) { + p = rubylib; + len = strlen(p); + } +#endif + rb_ary_push(load_path, (*filter)(rubylib_path_new(p, len))); + p = s; + } +} -static FILE *e_fp; -static char *e_tmpname; +static VALUE +identical_path(VALUE path) +{ + return path; +} -static void -addpath(path) - char *path; +static VALUE +locale_path(VALUE path) { - if (path == 0) return; -#if defined(__CYGWIN32__) + rb_enc_associate(path, rb_locale_encoding()); + return path; +} + +void +ruby_incpush(const char *path) +{ + ruby_push_include(path, locale_path); +} + +static VALUE +expand_include_path(VALUE path) +{ + char *p = RSTRING_PTR(path); + if (!p) + return path; + if (*p == '.' && p[1] == '/') + return path; + return rb_file_expand_path(path, Qnil); +} + +void +ruby_incpush_expand(const char *path) +{ + ruby_push_include(path, expand_include_path); +} + +#undef UTF8_PATH +#if defined _WIN32 || defined __CYGWIN__ +static HMODULE libruby; + +BOOL WINAPI +DllMain(HINSTANCE dll, DWORD reason, LPVOID reserved) +{ + if (reason == DLL_PROCESS_ATTACH) + libruby = dll; + return TRUE; +} + +HANDLE +rb_libruby_handle(void) +{ + return libruby; +} + +static inline void +translit_char_bin(char *p, int from, int to) +{ + while (*p) { + if ((unsigned char)*p == from) + *p = to; + p++; + } +} +#endif + +#ifdef _WIN32 +# undef chdir +# define chdir rb_w32_uchdir +# define UTF8_PATH 1 +#endif + +#ifndef UTF8_PATH +# define UTF8_PATH 0 +#endif +#if UTF8_PATH +# define IF_UTF8_PATH(t, f) t +#else +# define IF_UTF8_PATH(t, f) f +#endif + +#if UTF8_PATH +static VALUE +str_conv_enc(VALUE str, rb_encoding *from, rb_encoding *to) +{ + return rb_str_conv_enc_opts(str, from, to, + ECONV_UNDEF_REPLACE|ECONV_INVALID_REPLACE, + Qnil); +} +#else +# define str_conv_enc(str, from, to) (str) +#endif + +void ruby_init_loadpath(void); + +#if defined(LOAD_RELATIVE) +static VALUE +runtime_libruby_path(void) +{ +#if defined _WIN32 || defined __CYGWIN__ + DWORD ret; + DWORD len = 32; + VALUE path; + VALUE wsopath = rb_str_new(0, len*sizeof(WCHAR)); + WCHAR *wlibpath; + char *libpath; + + while (wlibpath = (WCHAR *)RSTRING_PTR(wsopath), + ret = GetModuleFileNameW(libruby, wlibpath, len), + (ret == len)) + { + rb_str_modify_expand(wsopath, len*sizeof(WCHAR)); + rb_str_set_len(wsopath, (len += len)*sizeof(WCHAR)); + } + if (!ret || ret > len) rb_fatal("failed to get module file name"); +#if defined __CYGWIN__ { - char rubylib[FILENAME_MAX]; - conv_to_posix_path(path, rubylib); - path = rubylib; - } -#endif - if (strchr(path, RUBY_LIB_SEP)) { - char *p, *s; - VALUE ary = ary_new(); - - p = path; - while (*p) { - while (*p == RUBY_LIB_SEP) p++; - if (s = strchr(p, RUBY_LIB_SEP)) { - ary_push(ary, str_new(p, (int)(s-p))); - p = s + 1; - } - else { - ary_push(ary, str_new2(p)); - break; - } - } - rb_load_path = ary_plus(ary, rb_load_path); + const int win_to_posix = CCP_WIN_W_TO_POSIX | CCP_RELATIVE; + size_t newsize = cygwin_conv_path(win_to_posix, wlibpath, 0, 0); + if (!newsize) rb_fatal("failed to convert module path to cygwin"); + path = rb_str_new(0, newsize); + libpath = RSTRING_PTR(path); + if (cygwin_conv_path(win_to_posix, wlibpath, libpath, newsize)) { + rb_str_resize(path, 0); + } + } +#else + { + DWORD i; + for (len = ret, i = 0; i < len; ++i) { + if (wlibpath[i] == L'\\') { + wlibpath[i] = L'/'; + ret = i+1; /* chop after the last separator */ + } + } + } + len = WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, NULL, 0, NULL, NULL); + path = rb_utf8_str_new(0, len); + libpath = RSTRING_PTR(path); + WideCharToMultiByte(CP_UTF8, 0, wlibpath, ret, libpath, len, NULL, NULL); +#endif + rb_str_resize(wsopath, 0); + return path; +#elif defined(HAVE_DLADDR) + Dl_info dli; + VALUE fname, path; + const void* addr = (void *)(VALUE)expand_include_path; + + if (!dladdr((void *)addr, &dli)) { + return rb_str_new(0, 0); + } +#ifdef __linux__ + else if (origarg.argc > 0 && origarg.argv && dli.dli_fname == origarg.argv[0]) { + fname = rb_str_new_cstr("/proc/self/exe"); + path = rb_readlink(fname, NULL); + } +#endif + else { + fname = rb_str_new_cstr(dli.dli_fname); + path = rb_realpath_internal(Qnil, fname, 1); + } + rb_str_resize(fname, 0); + return path; +#else +# error relative load path is not supported on this platform. +#endif +} +#endif + +#define INITIAL_LOAD_PATH_MARK rb_intern_const("@gem_prelude_index") + +VALUE ruby_archlibdir_path, ruby_prefix_path; + +void +ruby_init_loadpath(void) +{ + VALUE load_path, archlibdir = 0; + ID id_initial_load_path_mark; + const char *paths = ruby_initial_load_paths; + +#if defined LOAD_RELATIVE +#if !defined ENABLE_MULTIARCH +# define RUBY_ARCH_PATH "" +#elif defined RUBY_ARCH +# define RUBY_ARCH_PATH "/"RUBY_ARCH +#else +# define RUBY_ARCH_PATH "/"RUBY_PLATFORM +#endif + char *libpath; + VALUE sopath; + size_t baselen; + const char *p; + + sopath = runtime_libruby_path(); + libpath = RSTRING_PTR(sopath); + + p = strrchr(libpath, '/'); + if (p) { + static const char libdir[] = "/" +#ifdef LIBDIR_BASENAME + LIBDIR_BASENAME +#else + "lib" +#endif + RUBY_ARCH_PATH; + const ptrdiff_t libdir_len = (ptrdiff_t)sizeof(libdir) + - rb_strlen_lit(RUBY_ARCH_PATH) - 1; + static const char bindir[] = "/bin"; + const ptrdiff_t bindir_len = (ptrdiff_t)sizeof(bindir) - 1; + + const char *p2 = NULL; + +#ifdef ENABLE_MULTIARCH + multiarch: +#endif + if (p - libpath >= bindir_len && !STRNCASECMP(p - bindir_len, bindir, bindir_len)) { + p -= bindir_len; + archlibdir = rb_str_subseq(sopath, 0, p - libpath); + rb_str_cat_cstr(archlibdir, libdir); + OBJ_FREEZE(archlibdir); + } + else if (p - libpath >= libdir_len && !strncmp(p - libdir_len, libdir, libdir_len)) { + archlibdir = rb_str_subseq(sopath, 0, (p2 ? p2 : p) - libpath); + OBJ_FREEZE(archlibdir); + p -= libdir_len; + } +#ifdef ENABLE_MULTIARCH + else if (p2) { + p = p2; + } + else { + p2 = p; + p = rb_enc_path_last_separator(libpath, p, rb_ascii8bit_encoding()); + if (p) goto multiarch; + p = p2; + } +#endif + baselen = p - libpath; } else { - ary_unshift(rb_load_path, str_new2(path)); + baselen = 0; + } + rb_str_resize(sopath, baselen); + libpath = RSTRING_PTR(sopath); +#define PREFIX_PATH() sopath +#define BASEPATH() rb_str_buf_cat(rb_str_buf_new(baselen+len), libpath, baselen) +#define RUBY_RELATIVE(path, len) rb_str_buf_cat(BASEPATH(), (path), (len)) +#else + const size_t exec_prefix_len = strlen(ruby_exec_prefix); +#define RUBY_RELATIVE(path, len) rubylib_path_new((path), (len)) +#define PREFIX_PATH() RUBY_RELATIVE(ruby_exec_prefix, exec_prefix_len) +#endif + rb_gc_register_address(&ruby_prefix_path); + ruby_prefix_path = PREFIX_PATH(); + OBJ_FREEZE(ruby_prefix_path); + if (!archlibdir) archlibdir = ruby_prefix_path; + rb_gc_register_address(&ruby_archlibdir_path); + ruby_archlibdir_path = archlibdir; + + load_path = rb_root_box()->load_path; + + ruby_push_include(getenv("RUBYLIB"), identical_path); + + id_initial_load_path_mark = INITIAL_LOAD_PATH_MARK; + while (*paths) { + size_t len = strlen(paths); + VALUE path = RUBY_RELATIVE(paths, len); + rb_ivar_set(path, id_initial_load_path_mark, path); + rb_ary_push(load_path, path); + paths += len + 1; } } -struct req_list { - char *name; - struct req_list *next; -} *req_list; static void -add_modules(mod) - char *mod; +add_modules(VALUE *req_list, const char *mod) { - struct req_list *list; + VALUE list = *req_list; + VALUE feature; - list = ALLOC(struct req_list); - list->name = mod; - list->next = req_list; - req_list = list; + if (!list) { + *req_list = list = rb_ary_hidden_new(0); + } + feature = rb_str_cat_cstr(rb_str_tmp_new(0), mod); + rb_ary_push(list, feature); } -void -ruby_require_modules() +static void +require_libraries(VALUE *req_list) +{ + VALUE list = *req_list; + VALUE self = rb_vm_top_self(); + ID require; + rb_encoding *extenc = rb_default_external_encoding(); + + CONST_ID(require, "require"); + while (list && RARRAY_LEN(list) > 0) { + VALUE feature = rb_ary_shift(list); + rb_enc_associate(feature, extenc); + RBASIC_SET_CLASS_RAW(feature, rb_cString); + OBJ_FREEZE(feature); + rb_funcallv(self, require, 1, &feature); + } + *req_list = 0; +} + +static const struct rb_block* +toplevel_context(rb_binding_t *bind) { - struct req_list *list = req_list; - struct req_list *tmp; + return &bind->block; +} - req_list = 0; - while (list) { - f_require(Qnil, str_new2(list->name)); - tmp = list->next; - free(list); - list = tmp; +static int +process_sflag(int sflag) +{ + if (sflag > 0) { + long n; + const VALUE *args; + VALUE argv = rb_argv; + + n = RARRAY_LEN(argv); + args = RARRAY_CONST_PTR(argv); + while (n > 0) { + VALUE v = *args++; + char *s = StringValuePtr(v); + char *p; + int hyphen = FALSE; + + if (s[0] != '-') + break; + n--; + if (s[1] == '-' && s[2] == '\0') + break; + + v = Qtrue; + /* check if valid name before replacing - with _ */ + for (p = s + 1; *p; p++) { + if (*p == '=') { + *p++ = '\0'; + v = rb_str_new2(p); + break; + } + if (*p == '-') { + hyphen = TRUE; + } + else if (*p != '_' && !ISALNUM(*p)) { + VALUE name_error[2]; + name_error[0] = + rb_str_new2("invalid name for global variable - "); + if (!(p = strchr(p, '='))) { + rb_str_cat2(name_error[0], s); + } + else { + rb_str_cat(name_error[0], s, p - s); + } + name_error[1] = args[-1]; + rb_exc_raise(rb_class_new_instance(2, name_error, rb_eNameError)); + } + } + s[0] = '$'; + if (hyphen) { + for (p = s + 1; *p; ++p) { + if (*p == '-') + *p = '_'; + } + } + rb_gv_set(s, v); + } + n = RARRAY_LEN(argv) - n; + while (n--) { + rb_ary_shift(argv); + } + return -1; } + return sflag; } +static long proc_options(long argc, char **argv, ruby_cmdline_options_t *opt, int envopt); + static void -proc_options(argcp, argvp) - int *argcp; - char ***argvp; +moreswitches(const char *s, ruby_cmdline_options_t *opt, int envopt) { - int argc = *argcp; - char **argv = *argvp; - int script_given, do_search; - char *s; + long argc, i, len; + char **argv, *p; + const char *ap = 0; + VALUE argstr, argary; + void *ptr; + + VALUE src_enc_name = opt->src.enc.name; + VALUE ext_enc_name = opt->ext.enc.name; + VALUE int_enc_name = opt->intern.enc.name; + ruby_features_t feat = opt->features; + ruby_features_t warn = opt->warn; + long backtrace_length_limit = opt->backtrace_length_limit; + const char *crash_report = opt->crash_report; + + while (ISSPACE(*s)) s++; + if (!*s) return; + + opt->src.enc.name = opt->ext.enc.name = opt->intern.enc.name = 0; + + const int hyphen = *s != '-'; + argstr = rb_str_tmp_new((len = strlen(s)) + hyphen); + argary = rb_str_tmp_new(0); + + p = RSTRING_PTR(argstr); + if (hyphen) *p = '-'; + memcpy(p + hyphen, s, len + 1); + ap = 0; + rb_str_cat(argary, (char *)&ap, sizeof(ap)); + while (*p) { + ap = p; + rb_str_cat(argary, (char *)&ap, sizeof(ap)); + while (*p && !ISSPACE(*p)) ++p; + if (!*p) break; + *p++ = '\0'; + while (ISSPACE(*p)) ++p; + } + argc = RSTRING_LEN(argary) / sizeof(ap); + ap = 0; + rb_str_cat(argary, (char *)&ap, sizeof(ap)); + + VALUE ptr_obj; + argv = ptr = RB_ALLOCV_N(char *, ptr_obj, argc); + MEMMOVE(argv, RSTRING_PTR(argary), char *, argc); + + while ((i = proc_options(argc, argv, opt, envopt)) > 1 && envopt && (argc -= i) > 0) { + argv += i; + if (**argv != '-') { + *--*argv = '-'; + } + if ((*argv)[1]) { + ++argc; + --argv; + } + } + + if (src_enc_name) { + opt->src.enc.name = src_enc_name; + } + if (ext_enc_name) { + opt->ext.enc.name = ext_enc_name; + } + if (int_enc_name) { + opt->intern.enc.name = int_enc_name; + } + FEATURE_SET_RESTORE(opt->features, feat); + FEATURE_SET_RESTORE(opt->warn, warn); + if (BACKTRACE_LENGTH_LIMIT_VALID_P(backtrace_length_limit)) { + opt->backtrace_length_limit = backtrace_length_limit; + } + if (crash_report) { + opt->crash_report = crash_report; + } - if (argc == 0) return; + RB_ALLOCV_END(ptr_obj); - version = FALSE; - do_search = FALSE; - script_given = 0; - e_tmpname = NULL; + /* get rid of GC */ + rb_str_resize(argary, 0); + rb_str_resize(argstr, 0); +} - for (argc--,argv++; argc > 0; argc--,argv++) { - if (argv[0][0] != '-' || !argv[0][1]) break; +static int +name_match_p(const char *name, const char *str, size_t len) +{ + if (len == 0) return 0; + while (1) { + while (TOLOWER(*str) == *name) { + if (!--len) return 1; + ++name; + ++str; + } + if (*str != '-' && *str != '_') return 0; + while (ISALNUM(*name)) name++; + if (*name != '-' && *name != '_') return 0; + if (!*++name) return 1; + ++str; + if (--len == 0) return 1; + } +} - s = argv[0]+1; - reswitch: - switch (*s) { - case 'a': - do_split = TRUE; - s++; - goto reswitch; - - case 'p': - do_print = TRUE; - /* through */ - case 'n': - do_loop = TRUE; - s++; - goto reswitch; - - case 'd': - debug = TRUE; - verbose |= 1; - s++; - goto reswitch; - - case 'y': - yydebug = 1; - s++; - goto reswitch; - - case 'v': - show_version(); - verbose = 2; - case 'w': - verbose |= 1; - s++; - goto reswitch; - - case 'c': - do_check = TRUE; - s++; - goto reswitch; - - case 's': - forbid_setid("-s"); - sflag = TRUE; - s++; - goto reswitch; - - case 'l': - do_line = TRUE; - ORS = RS; - s++; - goto reswitch; - - case 'S': - forbid_setid("-S"); - do_search = TRUE; - s++; - goto reswitch; - - case 'e': - forbid_setid("-e"); - if (!e_fp) { - e_tmpname = ruby_mktemp(); - if (!e_tmpname) Fatal("Can't mktemp"); - e_fp = fopen(e_tmpname, "w"); - if (!e_fp) { - Fatal("Cannot open temporary file: %s", e_tmpname); - } - if (script == 0) script = e_tmpname; - } - if (argv[1]) { - fputs(argv[1], e_fp); - argc--, argv++; - } - putc('\n', e_fp); - break; - - case 'r': - forbid_setid("-r"); - if (*++s) { - add_modules(s); - } - else if (argv[1]) { - add_modules(argv[1]); - argc--,argv++; - } - break; - - case 'i': - forbid_setid("-i"); - if (inplace) free(inplace); - inplace = strdup(s+1); - break; - - case 'x': - xflag = TRUE; - s++; - if (*s && chdir(s) < 0) { - Fatal("Can't chdir to %s", s); - } - break; - - case 'X': - s++; - if (!*s) { - s = argv[1]; - argc--,argv++; - } - if (*s && chdir(s) < 0) { - Fatal("Can't chdir to %s", s); - } - break; - - case 'F': - FS = str_new2(s+1); - break; - - case 'K': - s++; - rb_set_kcode(s); - s++; - goto reswitch; - - case 'T': - { - int numlen; - int v = 1; - - if (*++s) { - v = scan_oct(s, 2, &numlen); - if (numlen == 0) v = 1; - } - rb_set_safe_level(v); - tainting = TRUE; - } - break; - - case 'I': - forbid_setid("-I"); - if (*++s) - addpath(s); - else if (argv[1]) { - addpath(argv[1]); - argc--,argv++; - } - break; - - case '0': - { - int numlen; - int v; - char c; - - v = scan_oct(s, 4, &numlen); - s += numlen; - if (v > 0377) RS = Qnil; - else if (v == 0 && numlen >= 2) { - RS = str_new2("\n\n"); - } - else { - c = v & 0xff; - RS = str_new(&c, 1); - } - } - goto reswitch; - - case '-': - if (!s[1]) { - argc--,argv++; - goto switch_end; - } - s++; - if (strcmp("copyright", s) == 0) - copyright = 1; - else if (strcmp("debug", s) == 0) - debug = 1; - else if (strcmp("version", s) == 0) - version = 1; - else if (strcmp("verbose", s) == 0) - verbose = 2; - else if (strcmp("yydebug", s) == 0) - yydebug = 1; - else { - Fatal("Unrecognized long option: --%s",s); - } - break; - - case '*': - case ' ': - if (s[1] == '-') s+=2; - break; - - default: - Fatal("Unrecognized switch: -%s",s); - - case 0: - break; - } +#define NAME_MATCH_P(name, str, len) \ + ((len) < (int)sizeof(name) && name_match_p((name), (str), (len))) + +#define UNSET_WHEN(name, bit, str, len) \ + if (NAME_MATCH_P((name), (str), (len))) { \ + *(unsigned int *)arg &= ~(bit); \ + return; \ } - switch_end: - if (*argvp[0] == 0) return; - - if (e_fp) { - if (fflush(e_fp) || ferror(e_fp) || fclose(e_fp)) - Fatal("Cannot write to temp file for -e"); - e_fp = NULL; - argc++, argv--; - argv[0] = e_tmpname; - } - - if (version) { - show_version(); - exit(0); - } - if (copyright) { - show_copyright(); - } - - Init_ext(); /* should be called here for some reason :-( */ - if (script_given == FALSE) { - if (argc == 0) { /* no more args */ - if (verbose == 3) exit(0); - script = "-"; - load_stdin(); - } - else { - script = argv[0]; - if (script[0] == '\0') { - script = "-"; - load_stdin(); - } - else { - if (do_search) { - char *path = getenv("RUBYPATH"); - - script = 0; - if (path) { - script = dln_find_file(argv[0], path); - } - if (!script) { - script = dln_find_file(argv[0], getenv("PATH")); - } - if (!script) script = argv[0]; - } - load_file(script, 1); - } - argc--; argv++; - } - } - if (verbose) verbose = TRUE; - - xflag = FALSE; - *argvp = argv; - *argcp = argc; - - if (sflag) { - char *s; - - argc = *argcp; argv = *argvp; - for (; argc > 0 && argv[0][0] == '-'; argc--,argv++) { - if (argv[0][1] == '-') { - argc--,argv++; - break; - } - argv[0][0] = '$'; - if (s = strchr(argv[0], '=')) { - *s++ = '\0'; - rb_gvar_set2(argv[0], str_new2(s)); - } - else { - rb_gvar_set2(argv[0], TRUE); - } - argv[0][0] = '-'; - } - *argcp = argc; *argvp = argv; +#define SET_WHEN(name, bit, str, len) \ + if (NAME_MATCH_P((name), (str), (len))) { \ + *(unsigned int *)arg |= (bit); \ + return; \ } +#define LITERAL_NAME_ELEMENT(name) #name + +static void +feature_option(const char *str, int len, void *arg, const unsigned int enable) +{ + static const char list[] = EACH_FEATURES(LITERAL_NAME_ELEMENT, ", "); + ruby_features_t *argp = arg; + unsigned int mask = ~0U; + unsigned int set = 0U; +#if AMBIGUOUS_FEATURE_NAMES + int matched = 0; +# define FEATURE_FOUND ++matched +#else +# define FEATURE_FOUND goto found +#endif +#define SET_FEATURE(bit) \ + if (NAME_MATCH_P(#bit, str, len)) {set |= mask = FEATURE_BIT(bit); FEATURE_FOUND;} + EACH_FEATURES(SET_FEATURE, ;); + if (NAME_MATCH_P("jit", str, len)) { // This allows you to cancel --jit + set |= mask = FEATURE_BIT(jit); + goto found; + } + if (NAME_MATCH_P("all", str, len)) { + // We enable only one JIT for --enable=all. + mask &= ~feature_jit_mask | FEATURE_BIT(jit); + goto found; + } +#if AMBIGUOUS_FEATURE_NAMES + if (matched == 1) goto found; + if (matched > 1) { + VALUE mesg = rb_sprintf("ambiguous feature: '%.*s' (", len, str); +#define ADD_FEATURE_NAME(bit) \ + if (FEATURE_BIT(bit) & set) { \ + rb_str_cat_cstr(mesg, #bit); \ + if (--matched) rb_str_cat_cstr(mesg, ", "); \ + } + EACH_FEATURES(ADD_FEATURE_NAME, ;); + rb_str_cat_cstr(mesg, ")"); + rb_exc_raise(rb_exc_new_str(rb_eRuntimeError, mesg)); +#undef ADD_FEATURE_NAME + } +#else + (void)set; +#endif + rb_warn("unknown argument for --%s: '%.*s'", + enable ? "enable" : "disable", len, str); + rb_warn("features are [%.*s].", (int)strlen(list), list); + return; + + found: + FEATURE_SET_TO(*argp, mask, (mask & enable)); + if (NAME_MATCH_P("frozen_string_literal", str, len)) { + FEATURE_SET_TO(*argp, FEATURE_BIT(frozen_string_literal_set), FEATURE_BIT(frozen_string_literal_set)); + } + return; } static void -load_file(fname, script) - char *fname; - int script; +enable_option(const char *str, int len, void *arg) { - extern VALUE rb_stdin; - VALUE f; - int line_start = 1; + feature_option(str, len, arg, ~0U); +} + +static void +disable_option(const char *str, int len, void *arg) +{ + feature_option(str, len, arg, 0U); +} + +RUBY_EXTERN const int ruby_patchlevel; +int ruby_env_debug_option(const char *str, int len, void *arg); - if (strcmp(fname, "-") == 0) { - f = rb_stdin; +static void +debug_option(const char *str, int len, void *arg) +{ + static const char list[] = EACH_DEBUG_FEATURES(LITERAL_NAME_ELEMENT, ", "); + ruby_features_t *argp = arg; +#define SET_WHEN_DEBUG(bit) \ + if (NAME_MATCH_P(#bit, str, len)) { \ + FEATURE_SET(*argp, DEBUG_BIT(bit)); \ + return; \ } - else { - FILE *fp = fopen(fname, "r"); + EACH_DEBUG_FEATURES(SET_WHEN_DEBUG, ;); +#ifdef RUBY_DEVEL + if (ruby_patchlevel < 0 && ruby_env_debug_option(str, len, 0)) return; +#endif + rb_warn("unknown argument for --debug: '%.*s'", len, str); + rb_warn("debug features are [%.*s].", (int)strlen(list), list); +} + +static int +memtermspn(const char *str, char term, int len) +{ + RUBY_ASSERT(len >= 0); + if (len <= 0) return 0; + const char *next = memchr(str, term, len); + return next ? (int)(next - str) : len; +} - if (fp == NULL) { - LoadError("No such file to load -- %s", fname); - } - fclose(fp); +static const char additional_opt_sep = '+'; - f = file_open(fname, "r"); +static unsigned int +dump_additional_option_flag(const char *str, int len, unsigned int bits, bool set) +{ +#define SET_DUMP_OPT(bit) if (NAME_MATCH_P(#bit, str, len)) { \ + return set ? (bits | DUMP_BIT(opt_ ## bit)) : (bits & ~DUMP_BIT(opt_ ## bit)); \ } + SET_DUMP_OPT(error_tolerant); + SET_DUMP_OPT(comment); + SET_DUMP_OPT(optimize); +#undef SET_DUMP_OPT + rb_warn("don't know how to dump with%s '%.*s'", set ? "" : "out", len, str); + return bits; +} - if (script) { - VALUE c; - VALUE line; - VALUE rs = RS; - char *p; - - RS = RS_default; - if (xflag) { - forbid_setid("-x"); - xflag = FALSE; - while (!NIL_P(line = io_gets(f))) { - line_start++; - if (RSTRING(line)->len > 2 - && RSTRING(line)->ptr[0] == '#' - && RSTRING(line)->ptr[1] == '!') { - if (p = strstr(RSTRING(line)->ptr, "ruby")) { - goto start_read; - } - } - } - RS = rs; - LoadError("No Ruby script found in input"); - } - - c = io_getc(f); - if (c == INT2FIX('#')) { - line = io_gets(f); - line_start++; - - if (RSTRING(line)->len > 2 && RSTRING(line)->ptr[0] == '!') { - if ((p = strstr(RSTRING(line)->ptr, "ruby")) == 0) { - /* not ruby script, kick the program */ - char **argv; - char *path; - char *pend = RSTRING(line)->ptr + RSTRING(line)->len; - - p = RSTRING(line)->ptr + 2; /* skip `#!' */ - if (pend[-1] == '\n') pend--; /* chomp line */ - if (pend[-1] == '\r') pend--; - *pend = '\0'; - while (p < pend && ISSPACE(*p)) - p++; - path = p; /* interpreter path */ - while (p < pend && !ISSPACE(*p)) - p++; - *p++ = '\0'; - if (p < pend) { - argv = ALLOCA_N(char*, origargc+3); - argv[1] = p; - MEMCPY(argv+2, origargv+1, char*, origargc); - } - else { - argv = origargv; - } - argv[0] = path; -#ifndef USE_CWGUSI - execv(path, argv); -#endif - sourcefile = fname; - sourceline = 1; - Fatal("Can't exec %s", path); - } - - start_read: - p += 4; - RSTRING(line)->ptr[RSTRING(line)->len-1] = '\0'; - if (RSTRING(line)->ptr[RSTRING(line)->len-2] == '\r') - RSTRING(line)->ptr[RSTRING(line)->len-2] = '\0'; - if (p = strstr(p, " -")) { - int argc; char *argv[2]; char **argvp = argv; - char *s = ++p; - - argc = 2; argv[0] = 0; - while (*p == '-') { - while (*s && !ISSPACE(*s)) - s++; - *s = '\0'; - argv[1] = p; - proc_options(&argc, &argvp); - p = ++s; - while (*p && ISSPACE(*p)) - p++; - } - } - } - } - else if (!NIL_P(c)) { - io_ungetc(f, c); - } - RS = rs; - } - compile_file(fname, f, line_start); - if (script) { - rb_define_global_const("DATA", f); +static unsigned int +dump_additional_option(const char *str, int len, unsigned int bits) +{ + int w; + for (; len-- > 0 && *str++ == additional_opt_sep; len -= w, str += w) { + w = memtermspn(str, additional_opt_sep, len); + bool set = true; + if (*str == '-' || *str == '+') { + set = *str++ == '+'; + --w; + } + else { + int n = memtermspn(str, '-', w); + if (str[n] == '-') { + if (NAME_MATCH_P("with", str, n)) { + str += n; + w -= n; + } + else if (NAME_MATCH_P("without", str, n)) { + set = false; + str += n; + w -= n; + } + } + } + bits = dump_additional_option_flag(str, w, bits, set); + } + return bits; +} + +static void +dump_option(const char *str, int len, void *arg) +{ + static const char list[] = EACH_DUMPS(LITERAL_NAME_ELEMENT, ", "); + unsigned int *bits_ptr = (unsigned int *)arg; + if (*str == '+' || *str == '-') { + bool set = *str++ == '+'; + *bits_ptr = dump_additional_option_flag(str, --len, *bits_ptr, set); + return; } - else if (f != rb_stdin) { - io_close(f); + int w = memtermspn(str, additional_opt_sep, len); + +#define SET_WHEN_DUMP(bit) \ + if (NAME_MATCH_P(#bit "-", (str), (w))) { \ + *bits_ptr = dump_additional_option(str + w, len - w, *bits_ptr | DUMP_BIT(bit)); \ + return; \ } + EACH_DUMPS(SET_WHEN_DUMP, ;); + rb_warn("don't know how to dump '%.*s',", len, str); + rb_warn("but only [%.*s].", (int)strlen(list), list); } -void -rb_load_file(fname) - char *fname; +static void +set_option_encoding_once(const char *type, VALUE *name, const char *e, long elen) +{ + VALUE ename; + + if (!elen) elen = strlen(e); + ename = rb_str_new(e, elen); + + if (*name && + rb_funcall(ename, rb_intern("casecmp"), 1, *name) != INT2FIX(0)) { + rb_raise(rb_eRuntimeError, + "%s already set to %"PRIsVALUE, type, *name); + } + *name = ename; +} + +#define set_internal_encoding_once(opt, e, elen) \ + set_option_encoding_once("default_internal", &(opt)->intern.enc.name, (e), (elen)) +#define set_external_encoding_once(opt, e, elen) \ + set_option_encoding_once("default_external", &(opt)->ext.enc.name, (e), (elen)) +#define set_source_encoding_once(opt, e, elen) \ + set_option_encoding_once("source", &(opt)->src.enc.name, (e), (elen)) + +#define yjit_opt_match_noarg(s, l, name) \ + opt_match(s, l, name) && (*(s) ? (rb_warn("argument to --yjit-" name " is ignored"), 1) : 1) +#define yjit_opt_match_arg(s, l, name) \ + opt_match(s, l, name) && (*(s) && *(s+1) ? 1 : (rb_raise(rb_eRuntimeError, "--yjit-" name " needs an argument"), 0)) + +#if USE_YJIT +static bool +setup_yjit_options(const char *s) { - load_file(fname, 0); + // The option parsing is done in yjit/src/options.rs + bool rb_yjit_parse_option(const char* s); + bool success = rb_yjit_parse_option(s); + + if (success) { + return true; + } + + rb_raise( + rb_eRuntimeError, + "invalid YJIT option '%s' (--help will show valid yjit options)", + s + ); } +#endif +#if USE_ZJIT static void -load_stdin() +setup_zjit_options(const char *s) { - forbid_setid("program input from stdin"); - load_file("-", 1); + // The option parsing is done in zjit/src/options.rs + extern bool rb_zjit_parse_option(const char *s); + + if (!rb_zjit_parse_option(s)) { + rb_raise(rb_eRuntimeError, "invalid ZJIT option '%s' (--help will show valid zjit options)", s); + } } +#endif -VALUE rb_progname; -VALUE rb_argv; -VALUE rb_argv0; +/* + * Following proc_*_option functions are tree kinds: + * + * - with a required argument, takes also `argc` and `argv`, and + * returns the number of consumed argv including the option itself. + * + * - with a mandatory argument just after the option. + * + * - no required argument, this returns the address of + * the next character after the last consumed character. + */ + +/* optional */ +static const char * +proc_W_option(ruby_cmdline_options_t *opt, const char *s, int *warning) +{ + if (s[1] == ':') { + unsigned int bits = 0; + static const char no_prefix[] = "no-"; + int enable = strncmp(s += 2, no_prefix, sizeof(no_prefix)-1) != 0; + if (!enable) s += sizeof(no_prefix)-1; + size_t len = strlen(s); + if (NAME_MATCH_P("deprecated", s, len)) { + bits = 1U << RB_WARN_CATEGORY_DEPRECATED; + } + else if (NAME_MATCH_P("experimental", s, len)) { + bits = 1U << RB_WARN_CATEGORY_EXPERIMENTAL; + } + else if (NAME_MATCH_P("performance", s, len)) { + bits = 1U << RB_WARN_CATEGORY_PERFORMANCE; + } + else if (NAME_MATCH_P("strict_unused_block", s, len)) { + bits = 1U << RB_WARN_CATEGORY_STRICT_UNUSED_BLOCK; + } + else { + rb_warn("unknown warning category: '%s'", s); + } + if (bits) FEATURE_SET_TO(opt->warn, bits, enable ? bits : 0); + return 0; + } + else { + size_t numlen; + int v = 2; /* -W as -W2 */ + + if (*++s) { + v = scan_oct(s, 1, &numlen); + if (numlen == 0) + v = 2; + s += numlen; + } + if (!opt->warning) { + switch (v) { + case 0: + ruby_verbose = Qnil; + break; + case 1: + ruby_verbose = Qfalse; + break; + default: + ruby_verbose = Qtrue; + break; + } + } + *warning = 1; + switch (v) { + case 0: + FEATURE_SET_TO(opt->warn, RB_WARN_CATEGORY_DEFAULT_BITS, 0); + break; + case 1: + FEATURE_SET_TO(opt->warn, 1U << RB_WARN_CATEGORY_DEPRECATED, 0); + break; + default: + FEATURE_SET(opt->warn, RB_WARN_CATEGORY_DEFAULT_BITS); + break; + } + return s; + } +} + +/* required */ +static long +proc_e_option(ruby_cmdline_options_t *opt, const char *s, long argc, char **argv) +{ + long n = 1; + forbid_setid("-e"); + if (!*++s) { + if (!--argc) + rb_raise(rb_eRuntimeError, "no code specified for -e"); + s = *++argv; + n++; + } + if (!opt->e_script) { + opt->e_script = rb_str_new(0, 0); + if (opt->script == 0) + opt->script = "-e"; + } + rb_str_cat2(opt->e_script, s); + rb_str_cat2(opt->e_script, "\n"); + return n; +} + +/* optional */ +static const char * +proc_K_option(ruby_cmdline_options_t *opt, const char *s) +{ + if (*++s) { + const char *enc_name = 0; + switch (*s) { + case 'E': case 'e': + enc_name = "EUC-JP"; + break; + case 'S': case 's': + enc_name = "Windows-31J"; + break; + case 'U': case 'u': + enc_name = "UTF-8"; + break; + case 'N': case 'n': case 'A': case 'a': + enc_name = "ASCII-8BIT"; + break; + } + if (enc_name) { + opt->src.enc.name = rb_str_new2(enc_name); + if (!opt->ext.enc.name) + opt->ext.enc.name = opt->src.enc.name; + } + s++; + } + return s; +} + +/* optional */ +static const char * +proc_0_option(ruby_cmdline_options_t *opt, const char *s) +{ + size_t numlen; + int v; + char c; + + v = scan_oct(s, 4, &numlen); + s += numlen; + if (v > 0377) + rb_rs = Qnil; + else if (v == 0 && numlen >= 2) { + rb_rs = rb_fstring_lit(""); + } + else { + c = v & 0xff; + rb_rs = rb_str_freeze(rb_str_new(&c, 1)); + } + return s; +} +/* mandatory */ static void -set_arg0(val, id) - VALUE val; - ID id; +proc_encoding_option(ruby_cmdline_options_t *opt, const char *s, const char *opt_name) { - char *s; - int i; - static int len; - - if (origargv == 0) Fail("$0 not initialized"); - if (len == 0) { - s = origargv[0]; - s += strlen(s); - /* See if all the arguments are contiguous in memory */ - for (i = 1; i < origargc; i++) { - if (origargv[i] == s + 1) - s += strlen(++s); /* this one is ok too */ - } - len = s - origargv[0]; - } - s = str2cstr(val, &i); - if (i > len) { - memcpy(origargv[0], s, len); - origargv[0][len] = '\0'; + char *p; +# define set_encoding_part(type) \ + if (!(p = strchr(s, ':'))) { \ + set_##type##_encoding_once(opt, s, 0); \ + return; \ + } \ + else if (p > s) { \ + set_##type##_encoding_once(opt, s, p-s); \ + } + set_encoding_part(external); + if (!*(s = ++p)) return; + set_encoding_part(internal); + if (!*(s = ++p)) return; +#if defined ALLOW_DEFAULT_SOURCE_ENCODING && ALLOW_DEFAULT_SOURCE_ENCODING + set_encoding_part(source); + if (!*(s = ++p)) return; +#endif + rb_raise(rb_eRuntimeError, "extra argument for %s: %s", opt_name, s); +# undef set_encoding_part + UNREACHABLE; +} + +static long +proc_long_options(ruby_cmdline_options_t *opt, const char *s, long argc, char **argv, int envopt) +{ + size_t n; + long argc0 = argc; +# define is_option_end(c, allow_hyphen) \ + (!(c) || ((allow_hyphen) && (c) == '-') || (c) == '=') +# define check_envopt(name, allow_envopt) \ + (((allow_envopt) || !envopt) ? (void)0 : \ + rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: --" name)) +# define need_argument(name, s, needs_arg, next_arg) \ + ((*(s) ? !*++(s) : (next_arg) && (argc <= 1 || !((s) = argv[1]) || (--argc, ++argv, 0))) && (needs_arg) ? \ + rb_raise(rb_eRuntimeError, "missing argument for --" name) \ + : (void)0) +# define is_option_with_arg(name, allow_hyphen, allow_envopt) \ + is_option_with_optarg(name, allow_hyphen, allow_envopt, Qtrue, Qtrue) +# define is_option_with_optarg(name, allow_hyphen, allow_envopt, needs_arg, next_arg) \ + (strncmp((name), s, n = sizeof(name) - 1) == 0 && is_option_end(s[n], (allow_hyphen)) && \ + (s[n] != '-' || (s[n] && s[n+1])) ? \ + (check_envopt(name, (allow_envopt)), s += n, \ + need_argument(name, s, needs_arg, next_arg), 1) : 0) + + if (strcmp("copyright", s) == 0) { + if (envopt) goto noenvopt_long; + opt->dump |= DUMP_BIT(copyright); + } + else if (is_option_with_optarg("debug", Qtrue, Qtrue, Qfalse, Qfalse)) { + if (s && *s) { + ruby_each_words(s, debug_option, &opt->features); + } + else { + ruby_debug = Qtrue; + ruby_verbose = Qtrue; + } + } + else if (is_option_with_arg("enable", Qtrue, Qtrue)) { + ruby_each_words(s, enable_option, &opt->features); + } + else if (is_option_with_arg("disable", Qtrue, Qtrue)) { + ruby_each_words(s, disable_option, &opt->features); + } + else if (is_option_with_arg("encoding", Qfalse, Qtrue)) { + proc_encoding_option(opt, s, "--encoding"); + } + else if (is_option_with_arg("internal-encoding", Qfalse, Qtrue)) { + set_internal_encoding_once(opt, s, 0); + } + else if (is_option_with_arg("external-encoding", Qfalse, Qtrue)) { + set_external_encoding_once(opt, s, 0); + } + else if (is_option_with_arg("parser", Qfalse, Qtrue)) { + if (strcmp("prism", s) == 0) { + rb_ruby_default_parser_set(RB_DEFAULT_PARSER_PRISM); + } + else if (strcmp("parse.y", s) == 0) { + rb_ruby_default_parser_set(RB_DEFAULT_PARSER_PARSE_Y); + } + else { + rb_raise(rb_eRuntimeError, "unknown parser %s", s); + } + } +#if defined ALLOW_DEFAULT_SOURCE_ENCODING && ALLOW_DEFAULT_SOURCE_ENCODING + else if (is_option_with_arg("source-encoding", Qfalse, Qtrue)) { + set_source_encoding_once(opt, s, 0); + } +#endif + else if (strcmp("version", s) == 0) { + if (envopt) goto noenvopt_long; + opt->dump |= DUMP_BIT(version); + } + else if (strcmp("verbose", s) == 0) { + opt->verbose = 1; + ruby_verbose = Qtrue; + } + else if (strcmp("jit", s) == 0) { +#if USE_YJIT || USE_ZJIT + FEATURE_SET(opt->features, FEATURE_BIT(jit)); +#else + rb_warn("Ruby was built without JIT support"); +#endif + } + else if (is_option_with_optarg("yjit", '-', true, false, false)) { +#if USE_YJIT + FEATURE_SET(opt->features, FEATURE_BIT(yjit)); + setup_yjit_options(s); +#else + rb_warn("Ruby was built without YJIT support." + " You may need to install rustc to build Ruby with YJIT."); +#endif + } + else if (is_option_with_optarg("zjit", '-', true, false, false)) { +#if USE_ZJIT + FEATURE_SET(opt->features, FEATURE_BIT(zjit)); + setup_zjit_options(s); +#else + rb_warn("Ruby was built without ZJIT support." + " You may need to install rustc to build Ruby with ZJIT."); +#endif + } + else if (strcmp("yydebug", s) == 0) { + if (envopt) goto noenvopt_long; + opt->dump |= DUMP_BIT(yydebug); + } + else if (is_option_with_arg("dump", Qfalse, Qfalse)) { + ruby_each_words(s, dump_option, &opt->dump); + } + else if (strcmp("help", s) == 0) { + if (envopt) goto noenvopt_long; + opt->dump |= DUMP_BIT(help); + return 0; + } + else if (is_option_with_arg("backtrace-limit", Qfalse, Qtrue)) { + char *e; + long n = strtol(s, &e, 10); + if (errno == ERANGE || !BACKTRACE_LENGTH_LIMIT_VALID_P(n) || *e) { + rb_raise(rb_eRuntimeError, "wrong limit for backtrace length"); + } + else { + opt->backtrace_length_limit = n; + } + } + else if (is_option_with_arg("crash-report", true, true)) { + opt->crash_report = s; } else { - memcpy(origargv[0], s, i); - s = origargv[0]+i; - *s++ = '\0'; - while (++i < len) - *s++ = ' '; + rb_raise(rb_eRuntimeError, + "invalid option --%s (-h will show valid options)", s); } - rb_progname = str_taint(str_new2(origargv[0])); + return argc0 - argc + 1; + + noenvopt_long: + rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: --%s", s); +# undef is_option_end +# undef check_envopt +# undef need_argument +# undef is_option_with_arg +# undef is_option_with_optarg + UNREACHABLE_RETURN(0); } -void -ruby_script(name) - char *name; +static long +proc_options(long argc, char **argv, ruby_cmdline_options_t *opt, int envopt) { - if (name) { - rb_progname = str_taint(str_new2(name)); - sourcefile = name; + long n, argc0 = argc; + const char *s; + int warning = opt->warning; + + if (argc <= 0 || !argv) + return 0; + + for (argc--, argv++; argc > 0; argc--, argv++) { + const char *const arg = argv[0]; + if (!arg || arg[0] != '-' || !arg[1]) + break; + + s = arg + 1; + reswitch: + switch (*s) { + case 'a': + if (envopt) goto noenvopt; + opt->do_split = TRUE; + s++; + goto reswitch; + + case 'p': + if (envopt) goto noenvopt; + opt->do_print = TRUE; + /* through */ + case 'n': + if (envopt) goto noenvopt; + opt->do_loop = TRUE; + s++; + goto reswitch; + + case 'd': + ruby_debug = Qtrue; + ruby_verbose = Qtrue; + s++; + goto reswitch; + + case 'y': + if (envopt) goto noenvopt; + opt->dump |= DUMP_BIT(yydebug); + s++; + goto reswitch; + + case 'v': + if (opt->verbose) { + s++; + goto reswitch; + } + opt->dump |= DUMP_BIT(version_v); + opt->verbose = 1; + case 'w': + if (!opt->warning) { + warning = 1; + ruby_verbose = Qtrue; + } + FEATURE_SET(opt->warn, RB_WARN_CATEGORY_DEFAULT_BITS); + s++; + goto reswitch; + + case 'W': + if (!(s = proc_W_option(opt, s, &warning))) break; + goto reswitch; + + case 'c': + if (envopt) goto noenvopt; + opt->dump |= DUMP_BIT(syntax); + s++; + goto reswitch; + + case 's': + if (envopt) goto noenvopt; + forbid_setid("-s"); + if (!opt->sflag) opt->sflag = 1; + s++; + goto reswitch; + + case 'h': + if (envopt) goto noenvopt; + opt->dump |= DUMP_BIT(usage); + goto switch_end; + + case 'l': + if (envopt) goto noenvopt; + opt->do_line = TRUE; + rb_output_rs = rb_rs; + s++; + goto reswitch; + + case 'S': + if (envopt) goto noenvopt; + forbid_setid("-S"); + opt->do_search = TRUE; + s++; + goto reswitch; + + case 'e': + if (envopt) goto noenvopt; + if (!(n = proc_e_option(opt, s, argc, argv))) break; + --n; + argc -= n; + argv += n; + break; + + case 'r': + forbid_setid("-r"); + if (*++s) { + add_modules(&opt->req_list, s); + } + else if (argc > 1) { + add_modules(&opt->req_list, argv[1]); + argc--, argv++; + } + break; + + case 'i': + if (envopt) goto noenvopt; + forbid_setid("-i"); + ruby_set_inplace_mode(s + 1); + break; + + case 'x': + if (envopt) goto noenvopt; + forbid_setid("-x"); + opt->xflag = TRUE; + s++; + if (*s && chdir(s) < 0) { + rb_fatal("Can't chdir to %s", s); + } + break; + + case 'C': + case 'X': + if (envopt) goto noenvopt; + if (!*++s && (!--argc || !(s = *++argv) || !*s)) { + rb_fatal("Can't chdir"); + } + if (chdir(s) < 0) { + rb_fatal("Can't chdir to %s", s); + } + break; + + case 'F': + if (envopt) goto noenvopt; + if (*++s) { + rb_fs = rb_reg_new(s, strlen(s), 0); + } + break; + + case 'E': + if (!*++s && (!--argc || !(s = *++argv))) { + rb_raise(rb_eRuntimeError, "missing argument for -E"); + } + proc_encoding_option(opt, s, "-E"); + break; + + case 'U': + set_internal_encoding_once(opt, "UTF-8", 0); + ++s; + goto reswitch; + + case 'K': + if (!(s = proc_K_option(opt, s))) break; + goto reswitch; + + case 'I': + forbid_setid("-I"); + if (*++s) + ruby_incpush_expand(s); + else if (argc > 1) { + ruby_incpush_expand(argv[1]); + argc--, argv++; + } + break; + + case '0': + if (envopt) goto noenvopt; + if (!(s = proc_0_option(opt, s))) break; + goto reswitch; + + case '-': + if (!s[1] || (s[1] == '\r' && !s[2])) { + argc--, argv++; + goto switch_end; + } + s++; + + if (!(n = proc_long_options(opt, s, argc, argv, envopt))) goto switch_end; + --n; + argc -= n; + argv += n; + break; + + case '\r': + if (!s[1]) + break; + + default: { + rb_encoding *enc = IF_UTF8_PATH(rb_utf8_encoding(), rb_locale_encoding()); + const char *e = s + strlen(s); + int r = rb_enc_precise_mbclen(s, e, enc); + unsigned int c = (unsigned char)*s; + if (r > 0) { + c = rb_enc_mbc_to_codepoint(s, e, enc); + if (ONIGENC_IS_CODE_GRAPH(enc, c) || + ((s = ruby_escaped_char(c)) != 0 && + (r = (int)strlen(s), /* 3 at most */ 1))) { + rb_enc_raise(enc, rb_eRuntimeError, + "invalid option -%.*s (-h will show valid options)", + r, s); + } + } + rb_raise(rb_eRuntimeError, + "invalid option -\\x%.2x (-h will show valid options)", + c); + + goto switch_end; + } + + noenvopt: + /* "EIdvwWrKU" only */ + rb_raise(rb_eRuntimeError, "invalid switch in RUBYOPT: -%c", *s); + break; + + case 0: + break; + } } + + switch_end: + if (warning) opt->warning = warning; + return argc0 - argc; } -static int uid, euid, gid, egid; +void Init_builtin_features(void); static void -init_ids() +ruby_init_prelude(void) { - uid = (int)getuid(); - euid = (int)geteuid(); - gid = (int)getgid(); - egid = (int)getegid(); -#ifdef VMS - uid |= gid << 16; - euid |= egid << 16; + Init_builtin_features(); +} + +void rb_call_builtin_inits(void); + +// Initialize extra optional exts linked statically. +// This empty definition will be replaced with the actual strong symbol by linker. +#if RBIMPL_HAS_ATTRIBUTE(weak) +__attribute__((weak)) #endif - if (uid && (euid != uid || egid != gid)) { - rb_set_safe_level(1); +void +Init_extra_exts(void) +{ +} + +static void +ruby_opt_init(ruby_cmdline_options_t *opt) +{ + rb_warning_category_update(opt->warn.mask, opt->warn.set); + + if (opt->dump & dump_exit_bits) return; + + if (FEATURE_SET_P(opt->features, gems)) { + rb_define_module("Gem"); + if (opt->features.set & FEATURE_BIT(error_highlight)) { + rb_define_module("ErrorHighlight"); + } + if (opt->features.set & FEATURE_BIT(did_you_mean)) { + rb_define_module("DidYouMean"); + } + if (opt->features.set & FEATURE_BIT(syntax_suggest)) { + rb_define_module("SyntaxSuggest"); + } } + + Init_ext(); /* load statically linked extensions before rubygems */ + Init_extra_exts(); + + GET_VM()->running = 0; + rb_call_builtin_inits(); + GET_VM()->running = 1; + memset(ruby_vm_redefined_flag, 0, sizeof(ruby_vm_redefined_flag)); + + ruby_init_prelude(); + + /* Initialize the main box after loading libraries (including rubygems) + * to enable those in both root and main */ + if (rb_box_available()) + rb_initialize_main_box(); + rb_box_init_done(); + + // Initialize JITs after ruby_init_prelude() because JITing prelude is typically not optimal. +#if USE_YJIT + rb_yjit_init(opt->yjit); +#endif +#if USE_ZJIT + extern void rb_zjit_init(bool); + rb_zjit_init(opt->zjit); +#endif + + ruby_set_script_name(opt->script_name); + require_libraries(&opt->req_list); +} + +static int +opt_enc_index(VALUE enc_name) +{ + const char *s = RSTRING_PTR(enc_name); + int i = rb_enc_find_index(s); + + if (i < 0) { + rb_raise(rb_eRuntimeError, "unknown encoding name - %s", s); + } + else if (rb_enc_dummy_p(rb_enc_from_index(i))) { + rb_raise(rb_eRuntimeError, "dummy encoding is not acceptable - %s ", s); + } + return i; +} + +#define rb_progname (GET_VM()->progname) +#define rb_orig_progname (GET_VM()->orig_progname) +VALUE rb_argv0; +VALUE rb_e_script; + +static VALUE +false_value(ID _x, VALUE *_y) +{ + return Qfalse; +} + +static VALUE +true_value(ID _x, VALUE *_y) +{ + return Qtrue; +} + +#define rb_define_readonly_boolean(name, val) \ + rb_define_virtual_variable((name), (val) ? true_value : false_value, 0) + +static VALUE +uscore_get(void) +{ + VALUE line; + + line = rb_lastline_get(); + if (!RB_TYPE_P(line, T_STRING)) { + rb_raise(rb_eTypeError, "$_ value need to be String (%s given)", + NIL_P(line) ? "nil" : rb_obj_classname(line)); + } + return line; +} + +/* + * call-seq: + * sub(pattern, replacement) -> $_ + * sub(pattern) {|...| block } -> $_ + * + * Equivalent to <code>$_.sub(<i>args</i>)</code>, except that + * <code>$_</code> will be updated if substitution occurs. + * Available only when -p/-n command line option specified. + */ + +static VALUE +rb_f_sub(int argc, VALUE *argv, VALUE _) +{ + VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("sub"), argc, argv); + rb_lastline_set(str); + return str; +} + +/* + * call-seq: + * gsub(pattern, replacement) -> $_ + * gsub(pattern) {|...| block } -> $_ + * + * Equivalent to <code>$_.gsub...</code>, except that <code>$_</code> + * will be updated if substitution occurs. + * Available only when -p/-n command line option specified. + * + */ + +static VALUE +rb_f_gsub(int argc, VALUE *argv, VALUE _) +{ + VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("gsub"), argc, argv); + rb_lastline_set(str); + return str; +} + +/* + * call-seq: + * chop -> $_ + * + * Equivalent to <code>($_.dup).chop!</code>, except <code>nil</code> + * is never returned. See String#chop!. + * Available only when -p/-n command line option specified. + * + */ + +static VALUE +rb_f_chop(VALUE _) +{ + VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("chop"), 0, 0); + rb_lastline_set(str); + return str; +} + + +/* + * call-seq: + * chomp -> $_ + * chomp(string) -> $_ + * + * Equivalent to <code>$_ = $_.chomp(<em>string</em>)</code>. See + * String#chomp. + * Available only when -p/-n command line option specified. + * + */ + +static VALUE +rb_f_chomp(int argc, VALUE *argv, VALUE _) +{ + VALUE str = rb_funcall_passing_block(uscore_get(), rb_intern("chomp"), argc, argv); + rb_lastline_set(str); + return str; } static void -forbid_setid(s) - char *s; +setup_pager_env(void) { - if (euid != uid) - Fatal("No %s allowed while running setuid", s); - if (egid != gid) - Fatal("No %s allowed while running setgid", s); - if (rb_safe_level() > 0) - Fatal("No %s allowed in tainted mode", s); + if (!getenv("LESS")) { + // Output "raw" control characters, and move per sections. + ruby_setenv("LESS", "-R +/^[A-Z].*"); + } } -#if defined(_WIN32) || defined(DJGPP) -static char * -ruby_libpath() +#ifdef _WIN32 +static int +tty_enabled(void) { - static char libpath[FILENAME_MAX+1]; - char *p; -#if defined(_WIN32) - GetModuleFileName(NULL, libpath, sizeof libpath); -#elif defined(DJGPP) - extern char *__dos_argv0; - strcpy(libpath, __dos_argv0); -#endif - p = strrchr(libpath, '\\'); - if (p) - *p = 0; - if (!strcasecmp(p-4, "\\bin")) - p -= 4; - strcpy(p, "\\lib"); -#if defined(__CYGWIN32__) - p = (char *)malloc(strlen(libpath)+10); - if (!p) - return 0; - cygwin32_conv_to_posix_path(libpath, p); - strcpy(libpath, p); - free(p); -#else - for (p = libpath; *p; p++) - if (*p == '\\') - *p = '/'; + HANDLE h = GetStdHandle(STD_OUTPUT_HANDLE); + DWORD m; + if (!GetConsoleMode(h, &m)) return 0; +# ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING +# define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x4 +# endif + if (!(m & ENABLE_VIRTUAL_TERMINAL_PROCESSING)) return 0; + return 1; +} +#elif !defined(HAVE_WORKING_FORK) +# define tty_enabled() 0 #endif - return libpath; + +static VALUE +copy_str(VALUE str, rb_encoding *enc, bool intern) +{ + if (!intern) { + if (rb_enc_str_coderange_scan(str, enc) == ENC_CODERANGE_BROKEN) + return 0; + return rb_enc_associate(rb_str_dup(str), enc); + } + return rb_enc_interned_str(RSTRING_PTR(str), RSTRING_LEN(str), enc); +} + +#if USE_YJIT || USE_ZJIT +// Check that an environment variable is set to a truthy value +static bool +env_var_truthy(const char *name) +{ + const char *value = getenv(name); + + if (!value) + return false; + if (strcmp(value, "1") == 0) + return true; + if (strcmp(value, "true") == 0) + return true; + if (strcmp(value, "yes") == 0) + return true; + + return false; } #endif -void -ruby_prog_init() +rb_pid_t rb_fork_ruby(int *status); + +static void +show_help(const char *progname, int help) +{ + int tty = isatty(1); + int columns = 0; + if (help && tty) { + const char *pager_env = getenv("RUBY_PAGER"); + if (!pager_env) pager_env = getenv("PAGER"); + if (pager_env && *pager_env && isatty(0)) { + const char *columns_env = getenv("COLUMNS"); + if (columns_env) columns = atoi(columns_env); + VALUE pager = rb_str_new_cstr(pager_env); +#ifdef HAVE_WORKING_FORK + int fds[2]; + if (rb_pipe(fds) == 0) { + rb_pid_t pid = rb_fork_ruby(NULL); + if (pid > 0) { + /* exec PAGER with reading from child */ + dup2(fds[0], 0); + } + else if (pid == 0) { + /* send the help message to the parent PAGER */ + dup2(fds[1], 1); + dup2(fds[1], 2); + } + close(fds[0]); + close(fds[1]); + if (pid > 0) { + setup_pager_env(); + rb_f_exec(1, &pager); + kill(SIGTERM, pid); + rb_waitpid(pid, 0, 0); + } + } +#else + setup_pager_env(); + VALUE port = rb_io_popen(pager, rb_str_new_lit("w"), Qnil, Qnil); + if (!NIL_P(port)) { + int oldout = dup(1); + int olderr = dup(2); + int fd = RFILE(port)->fptr->fd; + tty = tty_enabled(); + dup2(fd, 1); + dup2(fd, 2); + usage(progname, 1, tty, columns); + fflush(stdout); + dup2(oldout, 1); + dup2(olderr, 2); + rb_io_close(port); + return; + } +#endif + } + } + usage(progname, help, tty, columns); +} + +static VALUE +process_script(ruby_cmdline_options_t *opt) +{ + rb_ast_t *ast; + VALUE ast_value; + VALUE parser = rb_parser_new(); + const unsigned int dump = opt->dump; + + if (dump & DUMP_BIT(yydebug)) { + rb_parser_set_yydebug(parser, Qtrue); + } + + if ((dump & dump_exit_bits) && (dump & DUMP_BIT(opt_error_tolerant))) { + rb_parser_error_tolerant(parser); + } + + if (opt->e_script) { + VALUE progname = rb_progname; + rb_parser_set_context(parser, 0, TRUE); + + ruby_opt_init(opt); + ruby_set_script_name(progname); + rb_parser_set_options(parser, opt->do_print, opt->do_loop, + opt->do_line, opt->do_split); + ast_value = rb_parser_compile_string(parser, opt->script, opt->e_script, 1); + } + else { + VALUE f; + int xflag = opt->xflag; + f = open_load_file(opt->script_name, &xflag); + opt->xflag = xflag != 0; + rb_parser_set_context(parser, 0, f == rb_stdin); + ast_value = load_file(parser, opt->script_name, f, 1, opt); + } + ast = rb_ruby_ast_data_get(ast_value); + if (!ast->body.root) { + rb_ast_dispose(ast); + return Qnil; + } + return ast_value; +} + +static uint8_t +prism_script_command_line(ruby_cmdline_options_t *opt) +{ + uint8_t command_line = 0; + if (opt->do_split) command_line |= PM_OPTIONS_COMMAND_LINE_A; + if (opt->do_line) command_line |= PM_OPTIONS_COMMAND_LINE_L; + if (opt->do_loop) command_line |= PM_OPTIONS_COMMAND_LINE_N; + if (opt->do_print) command_line |= PM_OPTIONS_COMMAND_LINE_P; + if (opt->xflag) command_line |= PM_OPTIONS_COMMAND_LINE_X; + return command_line; +} + +static void +prism_script_shebang_callback(pm_options_t *options, const uint8_t *source, size_t length, void *data) +{ + ruby_cmdline_options_t *opt = (ruby_cmdline_options_t *) data; + opt->warning = 0; + + char *switches = malloc(length + 1); + memcpy(switches, source, length); + switches[length] = '\0'; + + int no_src_enc = !opt->src.enc.name; + int no_ext_enc = !opt->ext.enc.name; + int no_int_enc = !opt->intern.enc.name; + + moreswitches(switches, opt, 0); + free(switches); + + pm_options_command_line_set(options, prism_script_command_line(opt)); + + if (no_src_enc && opt->src.enc.name) { + opt->src.enc.index = opt_enc_index(opt->src.enc.name); + pm_options_encoding_set(options, StringValueCStr(opt->ext.enc.name)); + } + if (no_ext_enc && opt->ext.enc.name) { + opt->ext.enc.index = opt_enc_index(opt->ext.enc.name); + } + if (no_int_enc && opt->intern.enc.name) { + opt->intern.enc.index = opt_enc_index(opt->intern.enc.name); + } +} + +/** + * Process the command line options and parse the script into the given result. + * Raise an error if the script cannot be parsed. + */ +static void +prism_script(ruby_cmdline_options_t *opt, pm_parse_result_t *result) +{ + memset(result, 0, sizeof(pm_parse_result_t)); + + pm_options_t *options = &result->options; + pm_options_line_set(options, 1); + pm_options_main_script_set(options, true); + + const bool read_stdin = (strcmp(opt->script, "-") == 0); + + if (read_stdin) { + pm_options_encoding_set(options, rb_enc_name(rb_locale_encoding())); + } + if (opt->src.enc.name != 0) { + pm_options_encoding_set(options, StringValueCStr(opt->src.enc.name)); + } + + uint8_t command_line = prism_script_command_line(opt); + VALUE error; + + if (read_stdin) { + pm_options_command_line_set(options, command_line); + pm_options_filepath_set(options, "-"); + pm_options_shebang_callback_set(options, prism_script_shebang_callback, (void *) opt); + + ruby_opt_init(opt); + error = pm_parse_stdin(result); + + // If we found an __END__ marker, then we're going to define a global + // DATA constant that is a file object that can be read to read the + // contents after the marker. + if (NIL_P(error) && result->parser.data_loc.start != NULL) { + rb_define_global_const("DATA", rb_stdin); + } + } + else if (opt->e_script) { + command_line = (uint8_t) ((command_line | PM_OPTIONS_COMMAND_LINE_E) & ~PM_OPTIONS_COMMAND_LINE_X); + pm_options_command_line_set(options, command_line); + + ruby_opt_init(opt); + result->node.coverage_enabled = 0; + error = pm_parse_string(result, opt->e_script, rb_str_new2("-e"), NULL); + } + else { + VALUE script_name = rb_str_encode_ospath(opt->script_name); + + pm_options_command_line_set(options, command_line); + pm_options_shebang_callback_set(options, prism_script_shebang_callback, (void *) opt); + + error = pm_load_file(result, script_name, true); + + // If reading the file did not error, at that point we load the command + // line options. We do it in this order so that if the main script fails + // to load, it doesn't require files required by -r. + if (NIL_P(error)) { + ruby_opt_init(opt); + error = pm_parse_file(result, opt->script_name, NULL); + } + + // Check if (after requiring all of the files through -r flags) we have + // coverage enabled and need to enable coverage on the main script. + if (RTEST(rb_get_coverages())) { + result->node.coverage_enabled = 1; + } + + // If we found an __END__ marker, then we're going to define a global + // DATA constant that is a file object that can be read to read the + // contents after the marker. + if (NIL_P(error) && result->parser.data_loc.start != NULL) { + int xflag = opt->xflag; + VALUE file = open_load_file(script_name, &xflag); + + const pm_parser_t *parser = &result->parser; + size_t offset = parser->data_loc.start - parser->start + 7; + + if ((parser->start + offset < parser->end) && parser->start[offset] == '\r') offset++; + if ((parser->start + offset < parser->end) && parser->start[offset] == '\n') offset++; + + rb_funcall(file, rb_intern_const("seek"), 2, SIZET2NUM(offset), INT2FIX(SEEK_SET)); + rb_define_global_const("DATA", file); + } + } + + if (!NIL_P(error)) { + pm_parse_result_free(result); + rb_exc_raise(error); + } +} + +static VALUE +prism_dump_tree(pm_parse_result_t *result) +{ + pm_buffer_t output_buffer = { 0 }; + + pm_prettyprint(&output_buffer, &result->parser, result->node.ast_node); + VALUE tree = rb_str_new(output_buffer.value, output_buffer.length); + pm_buffer_free(&output_buffer); + return tree; +} + +static void +process_options_global_setup(const ruby_cmdline_options_t *opt, const rb_iseq_t *iseq) { - init_ids(); + if (OPT_BACKTRACE_LENGTH_LIMIT_VALID_P(opt)) { + rb_backtrace_length_limit = opt->backtrace_length_limit; + } - sourcefile = "ruby"; - rb_define_variable("$VERBOSE", &verbose); - rb_define_variable("$-v", &verbose); - rb_define_variable("$DEBUG", &debug); - rb_define_variable("$-d", &debug); - rb_define_readonly_variable("$-p", &do_print); - rb_define_readonly_variable("$-l", &do_line); + if (opt->do_loop) { + rb_define_global_function("sub", rb_f_sub, -1); + rb_define_global_function("gsub", rb_f_gsub, -1); + rb_define_global_function("chop", rb_f_chop, 0); + rb_define_global_function("chomp", rb_f_chomp, -1); + } + + rb_define_readonly_boolean("$-p", opt->do_print); + rb_define_readonly_boolean("$-l", opt->do_line); + rb_define_readonly_boolean("$-a", opt->do_split); + + rb_gvar_ractor_local("$-p"); + rb_gvar_ractor_local("$-l"); + rb_gvar_ractor_local("$-a"); - if (rb_safe_level() == 0) { - addpath("."); + if ((rb_e_script = opt->e_script) != 0) { + rb_str_freeze(rb_e_script); + rb_vm_register_global_object(opt->e_script); } - addpath(RUBY_LIB); -#if defined(_WIN32) || defined(DJGPP) - addpath(ruby_libpath()); + rb_execution_context_t *ec = GET_EC(); + VALUE script = (opt->e_script ? opt->e_script : Qnil); + rb_exec_event_hook_script_compiled(ec, iseq, script); +} + +static VALUE +process_options(int argc, char **argv, ruby_cmdline_options_t *opt) +{ + VALUE ast_value = Qnil; + struct { + rb_ast_t *ast; + pm_parse_result_t prism; + } result = {0}; +#define dispose_result() \ + (result.ast ? rb_ast_dispose(result.ast) : pm_parse_result_free(&result.prism)) + + const rb_iseq_t *iseq; + rb_encoding *enc, *lenc; +#if UTF8_PATH + rb_encoding *ienc = 0; + rb_encoding *const uenc = rb_utf8_encoding(); +#endif + const char *s; + char fbuf[MAXPATHLEN]; + int i = (int)proc_options(argc, argv, opt, 0); + unsigned int dump = opt->dump & dump_exit_bits; + const rb_box_t *box = rb_root_box(); + const long loaded_before_enc = RARRAY_LEN(box->loaded_features); + + if (opt->dump & (DUMP_BIT(usage)|DUMP_BIT(help))) { + const char *const progname = + (argc > 0 && argv && argv[0] ? argv[0] : + origarg.argc > 0 && origarg.argv && origarg.argv[0] ? origarg.argv[0] : + ruby_engine); + show_help(progname, (opt->dump & DUMP_BIT(help))); + return Qtrue; + } + + argc -= i; + argv += i; + + if (FEATURE_SET_P(opt->features, rubyopt) && (s = getenv("RUBYOPT"))) { + moreswitches(s, opt, 1); + } + + if (opt->src.enc.name) + /* cannot set deprecated category, as enabling deprecation warnings based on flags + * has not happened yet. + */ + rb_warning("-K is specified; it is for 1.8 compatibility and may cause odd behavior"); + + if (!(FEATURE_SET_BITS(opt->features) & feature_jit_mask)) { +#if USE_YJIT + if (!FEATURE_USED_P(opt->features, yjit) && env_var_truthy("RUBY_YJIT_ENABLE")) { + FEATURE_SET(opt->features, FEATURE_BIT(yjit)); + } +#endif +#if USE_ZJIT + if (!FEATURE_USED_P(opt->features, zjit) && env_var_truthy("RUBY_ZJIT_ENABLE")) { + FEATURE_SET(opt->features, FEATURE_BIT(zjit)); + + // When the --zjit flag is specified, we would have call setup_zjit_options(""), + // which would have called rb_zjit_prepare_options() internally. This ensures we + // go through the same set up but with less overhead than setup_zjit_options(""). + extern void rb_zjit_prepare_options(); + rb_zjit_prepare_options(); + } #endif -#ifdef __MACOS__ - setup_macruby_libpath(); + } + if (MULTI_BITS_P(FEATURE_SET_BITS(opt->features) & feature_jit_mask)) { + rb_warn("Only one JIT can be enabled at the same time. Exiting"); + return Qfalse; + } + +#if USE_YJIT + if (FEATURE_SET_P(opt->features, yjit)) { + bool rb_yjit_option_disable(void); + opt->yjit = !rb_yjit_option_disable(); // set opt->yjit for Init_ruby_description() and calling rb_yjit_init() + } +#endif +#if USE_ZJIT + if (FEATURE_SET_P(opt->features, zjit)) { + bool rb_zjit_option_enable(void); + opt->zjit = rb_zjit_option_enable(); // set opt->zjit for Init_ruby_description() and calling rb_zjit_init() + } +#endif + + ruby_mn_threads_params(); + Init_ruby_description(opt); + + if (opt->dump & (DUMP_BIT(version) | DUMP_BIT(version_v))) { + ruby_show_version(); + if (opt->dump & DUMP_BIT(version)) return Qtrue; + } + if (opt->dump & DUMP_BIT(copyright)) { + ruby_show_copyright(); + return Qtrue; + } + + if (!opt->e_script) { + if (argc <= 0) { /* no more args */ + if (opt->verbose) + return Qtrue; + opt->script = "-"; + } + else { + opt->script = argv[0]; + if (!opt->script || opt->script[0] == '\0') { + opt->script = "-"; + } + else if (opt->do_search) { + const char *path = getenv("RUBYPATH"); + + opt->script = 0; + if (path) { + opt->script = dln_find_file_r(argv[0], path, fbuf, sizeof(fbuf)); + } + if (!opt->script) { + opt->script = dln_find_file_r(argv[0], getenv(PATH_ENV), fbuf, sizeof(fbuf)); + } + if (!opt->script) + opt->script = argv[0]; + } + argc--; + argv++; + } + if (opt->script[0] == '-' && !opt->script[1]) { + forbid_setid("program input from stdin"); + } + } + + opt->script_name = rb_str_new_cstr(opt->script); + opt->script = RSTRING_PTR(opt->script_name); + +#ifdef _WIN32 + translit_char_bin(RSTRING_PTR(opt->script_name), '\\', '/'); #endif -#ifdef RUBY_ARCHLIB - addpath(RUBY_ARCHLIB); + ruby_gc_set_params(); + ruby_init_loadpath(); + + Init_enc(); + lenc = rb_locale_encoding(); + rb_enc_associate(rb_progname, lenc); + rb_obj_freeze(rb_progname); + if (opt->ext.enc.name != 0) { + opt->ext.enc.index = opt_enc_index(opt->ext.enc.name); + } + if (opt->intern.enc.name != 0) { + opt->intern.enc.index = opt_enc_index(opt->intern.enc.name); + } + if (opt->src.enc.name != 0) { + opt->src.enc.index = opt_enc_index(opt->src.enc.name); + src_encoding_index = opt->src.enc.index; + } + if (opt->ext.enc.index >= 0) { + enc = rb_enc_from_index(opt->ext.enc.index); + } + else { + enc = IF_UTF8_PATH(uenc, lenc); + } + rb_enc_set_default_external(rb_enc_from_encoding(enc)); + if (opt->intern.enc.index >= 0) { + enc = rb_enc_from_index(opt->intern.enc.index); + rb_enc_set_default_internal(rb_enc_from_encoding(enc)); + opt->intern.enc.index = -1; +#if UTF8_PATH + ienc = enc; +#endif + } + rb_enc_associate(opt->script_name, IF_UTF8_PATH(uenc, lenc)); +#if UTF8_PATH + if (uenc != lenc) { + opt->script_name = str_conv_enc(opt->script_name, uenc, lenc); + opt->script = RSTRING_PTR(opt->script_name); + } #endif -#ifdef RUBY_THIN_ARCHLIB - addpath(RUBY_THIN_ARCHLIB); + rb_obj_freeze(opt->script_name); + if (IF_UTF8_PATH(uenc != lenc, 1)) { + long i; + VALUE load_path = box->load_path; + const ID id_initial_load_path_mark = INITIAL_LOAD_PATH_MARK; + int modifiable = FALSE; + + rb_get_expanded_load_path(); + for (i = 0; i < RARRAY_LEN(load_path); ++i) { + VALUE path = RARRAY_AREF(load_path, i); + int mark = rb_attr_get(path, id_initial_load_path_mark) == path; +#if UTF8_PATH + VALUE newpath = rb_str_conv_enc(path, uenc, lenc); + if (newpath == path) continue; + path = newpath; +#else + if (!(path = copy_str(path, lenc, !mark))) continue; #endif + if (mark) rb_ivar_set(path, id_initial_load_path_mark, path); + if (!modifiable) { + rb_ary_modify(load_path); + modifiable = TRUE; + } + RARRAY_ASET(load_path, i, path); + } + if (modifiable) { + rb_ary_replace(box->load_path_snapshot, load_path); + } + } + { + VALUE loaded_features = box->loaded_features; + bool modified = false; + for (long i = loaded_before_enc; i < RARRAY_LEN(loaded_features); ++i) { + VALUE path = RARRAY_AREF(loaded_features, i); + if (!(path = copy_str(path, IF_UTF8_PATH(uenc, lenc), true))) continue; + if (!modified) { + rb_ary_modify(loaded_features); + modified = true; + } + RARRAY_ASET(loaded_features, i, path); + } + if (modified) { + rb_ary_replace(box->loaded_features_snapshot, loaded_features); + } + } - addpath(RUBY_SITE_LIB); -#ifdef RUBY_SITE_ARCHLIB - addpath(RUBY_SITE_ARCHLIB); + if (opt->features.mask & COMPILATION_FEATURES) { + VALUE option = rb_hash_new(); +#define SET_COMPILE_OPTION(h, o, name) \ + rb_hash_aset((h), ID2SYM(rb_intern_const(#name)), \ + RBOOL(FEATURE_SET_P(o->features, name))) + + if (FEATURE_SET_P(opt->features, frozen_string_literal_set)) { + SET_COMPILE_OPTION(option, opt, frozen_string_literal); + } + SET_COMPILE_OPTION(option, opt, debug_frozen_string_literal); + rb_funcallv(rb_cISeq, rb_intern_const("compile_option="), 1, &option); +#undef SET_COMPILE_OPTION + } + ruby_set_argv(argc, argv); + opt->sflag = process_sflag(opt->sflag); + + if (opt->e_script) { + rb_encoding *eenc; + if (opt->src.enc.index >= 0) { + eenc = rb_enc_from_index(opt->src.enc.index); + } + else { + eenc = lenc; +#if UTF8_PATH + if (ienc) eenc = ienc; #endif -#ifdef RUBY_SITE_THIN_ARCHLIB - addpath(RUBY_SITE_THIN_ARCHLIB); + } +#if UTF8_PATH + if (eenc != uenc) { + opt->e_script = str_conv_enc(opt->e_script, uenc, eenc); + } #endif + rb_enc_associate(opt->e_script, eenc); + } + + if (!rb_ruby_prism_p()) { + ast_value = process_script(opt); + if (!(result.ast = rb_ruby_ast_data_get(ast_value))) return Qfalse; + } + else { + prism_script(opt, &result.prism); + } + ruby_set_script_name(opt->script_name); + if ((dump & DUMP_BIT(yydebug)) && !(dump &= ~DUMP_BIT(yydebug))) { + dispose_result(); + return Qtrue; + } + + if (opt->ext.enc.index >= 0) { + enc = rb_enc_from_index(opt->ext.enc.index); + } + else { + enc = IF_UTF8_PATH(uenc, lenc); + } + rb_enc_set_default_external(rb_enc_from_encoding(enc)); + if (opt->intern.enc.index >= 0) { + /* Set in the shebang line */ + enc = rb_enc_from_index(opt->intern.enc.index); + rb_enc_set_default_internal(rb_enc_from_encoding(enc)); + } + else if (!rb_default_internal_encoding()) + /* Freeze default_internal */ + rb_enc_set_default_internal(Qnil); + rb_stdio_set_default_encoding(); + + opt->sflag = process_sflag(opt->sflag); + opt->xflag = 0; + + if (dump & DUMP_BIT(syntax)) { + printf("Syntax OK\n"); + dump &= ~DUMP_BIT(syntax); + if (!dump) { + dispose_result(); + return Qtrue; + } + } + + if (dump & DUMP_BIT(parsetree)) { + VALUE tree; + if (result.ast) { + int comment = opt->dump & DUMP_BIT(opt_comment); + tree = rb_parser_dump_tree(result.ast->body.root, comment); + } + else { + tree = prism_dump_tree(&result.prism); + } + rb_io_write(rb_stdout, tree); + rb_io_flush(rb_stdout); + dump &= ~DUMP_BIT(parsetree); + if (!dump) { + dispose_result(); + return Qtrue; + } + } + + { + VALUE path = Qnil; + if (!opt->e_script && strcmp(opt->script, "-")) { + path = rb_realpath_internal(Qnil, opt->script_name, 1); +#if UTF8_PATH + if (uenc != lenc) { + path = str_conv_enc(path, uenc, lenc); + } +#endif + if (!ENCODING_GET(path)) { /* ASCII-8BIT */ + rb_enc_copy(path, opt->script_name); + } + } + + rb_binding_t *toplevel_binding; + GetBindingPtr(rb_const_get(rb_cObject, rb_intern("TOPLEVEL_BINDING")), toplevel_binding); + const struct rb_block *base_block = toplevel_context(toplevel_binding); + const rb_iseq_t *parent = vm_block_iseq(base_block); + bool optimize = (opt->dump & DUMP_BIT(opt_optimize)) != 0; + + if (!result.ast) { + pm_parse_result_t *pm = &result.prism; + int error_state; + iseq = pm_iseq_new_main(&pm->node, opt->script_name, path, parent, optimize, &error_state); + + pm_parse_result_free(pm); + + if (error_state) { + RUBY_ASSERT(iseq == NULL); + rb_jump_tag(error_state); + } + } + else { + rb_ast_t *ast = result.ast; + iseq = rb_iseq_new_main(ast_value, opt->script_name, path, parent, optimize); + rb_ast_dispose(ast); + } + } - if (rb_safe_level() == 0) { - addpath(getenv("RUBYLIB")); + if (dump & DUMP_BIT(insns)) { + rb_io_write(rb_stdout, rb_iseq_disasm((const rb_iseq_t *)iseq)); + rb_io_flush(rb_stdout); + dump &= ~DUMP_BIT(insns); + if (!dump) return Qtrue; } + if (opt->dump & dump_exit_bits) return Qtrue; + + process_options_global_setup(opt, iseq); + return (VALUE)iseq; +} + +#ifndef DOSISH +static void +warn_cr_in_shebang(const char *str, long len) +{ + if (len > 1 && str[len-1] == '\n' && str[len-2] == '\r') { + rb_warn("shebang line ending with \\r may cause problems"); + } +} +#else +#define warn_cr_in_shebang(str, len) (void)0 +#endif + +void rb_reset_argf_lineno(long n); + +struct load_file_arg { + VALUE parser; + VALUE fname; + int script; + ruby_cmdline_options_t *opt; + VALUE f; +}; + +void rb_set_script_lines_for(VALUE vparser, VALUE path); + +static VALUE +load_file_internal(VALUE argp_v) +{ + struct load_file_arg *argp = (struct load_file_arg *)argp_v; + VALUE parser = argp->parser; + VALUE orig_fname = argp->fname; + int script = argp->script; + ruby_cmdline_options_t *opt = argp->opt; + VALUE f = argp->f; + int line_start = 1; + VALUE ast_value = Qnil; + rb_encoding *enc; + ID set_encoding; + + CONST_ID(set_encoding, "set_encoding"); + if (script) { + VALUE c = 1; /* something not nil */ + VALUE line; + char *p, *str; + long len; + int no_src_enc = !opt->src.enc.name; + int no_ext_enc = !opt->ext.enc.name; + int no_int_enc = !opt->intern.enc.name; + + enc = rb_ascii8bit_encoding(); + rb_funcall(f, set_encoding, 1, rb_enc_from_encoding(enc)); + + if (opt->xflag) { + line_start--; + search_shebang: + while (!NIL_P(line = rb_io_gets(f))) { + line_start++; + RSTRING_GETMEM(line, str, len); + if (len > 2 && str[0] == '#' && str[1] == '!') { + if (line_start == 1) warn_cr_in_shebang(str, len); + if ((p = strstr(str+2, ruby_engine)) != 0) { + goto start_read; + } + } + } + rb_loaderror("no Ruby script found in input"); + } + + c = rb_io_getbyte(f); + if (c == INT2FIX('#')) { + c = rb_io_getbyte(f); + if (c == INT2FIX('!') && !NIL_P(line = rb_io_gets(f))) { + RSTRING_GETMEM(line, str, len); + warn_cr_in_shebang(str, len); + if ((p = strstr(str, ruby_engine)) == 0) { + /* not ruby script, assume -x flag */ + goto search_shebang; + } + + start_read: + str += len - 1; + if (*str == '\n') *str-- = '\0'; + if (*str == '\r') *str-- = '\0'; + /* ruby_engine should not contain a space */ + if ((p = strstr(p, " -")) != 0) { + opt->warning = 0; + moreswitches(p + 1, opt, 0); + } + + /* push back shebang for pragma may exist in next line */ + rb_io_ungetbyte(f, rb_str_new2("!\n")); + } + else if (!NIL_P(c)) { + rb_io_ungetbyte(f, c); + } + rb_io_ungetbyte(f, INT2FIX('#')); + if (no_src_enc && opt->src.enc.name) { + opt->src.enc.index = opt_enc_index(opt->src.enc.name); + src_encoding_index = opt->src.enc.index; + } + if (no_ext_enc && opt->ext.enc.name) { + opt->ext.enc.index = opt_enc_index(opt->ext.enc.name); + } + if (no_int_enc && opt->intern.enc.name) { + opt->intern.enc.index = opt_enc_index(opt->intern.enc.name); + } + } + else if (!NIL_P(c)) { + rb_io_ungetbyte(f, c); + } + if (NIL_P(c)) { + argp->f = f = Qnil; + } + rb_reset_argf_lineno(0); + ruby_opt_init(opt); + } + if (opt->src.enc.index >= 0) { + enc = rb_enc_from_index(opt->src.enc.index); + } + else if (f == rb_stdin) { + enc = rb_locale_encoding(); + } + else { + enc = rb_utf8_encoding(); + } + rb_parser_set_options(parser, opt->do_print, opt->do_loop, + opt->do_line, opt->do_split); + + rb_set_script_lines_for(parser, orig_fname); + + if (NIL_P(f)) { + f = rb_str_new(0, 0); + rb_enc_associate(f, enc); + return rb_parser_compile_string_path(parser, orig_fname, f, line_start); + } + rb_funcall(f, set_encoding, 2, rb_enc_from_encoding(enc), rb_str_new_cstr("-")); + ast_value = rb_parser_compile_file_path(parser, orig_fname, f, line_start); + rb_funcall(f, set_encoding, 1, rb_parser_encoding(parser)); + if (script && rb_parser_end_seen_p(parser)) { + /* + * DATA is a File that contains the data section of the executed file. + * To create a data section use <tt>__END__</tt>: + * + * $ cat t.rb + * puts DATA.gets + * __END__ + * hello world! + * + * $ ruby t.rb + * hello world! + */ + rb_define_global_const("DATA", f); + argp->f = Qnil; + } + return ast_value; +} + +/* disabling O_NONBLOCK, and returns 0 on success, otherwise errno */ +static inline int +disable_nonblock(int fd) +{ +#if defined(HAVE_FCNTL) && defined(F_SETFL) + if (fcntl(fd, F_SETFL, 0) < 0) { + const int e = errno; + ASSUME(e != 0); +# if defined ENOTSUP + if (e == ENOTSUP) return 0; +# endif +# if defined B_UNSUPPORTED + if (e == B_UNSUPPORTED) return 0; +# endif + return e; + } +#endif + return 0; +} + +static VALUE +open_load_file(VALUE fname_v, int *xflag) +{ + const char *fname = (fname_v = rb_str_encode_ospath(fname_v), + StringValueCStr(fname_v)); + long flen = RSTRING_LEN(fname_v); + VALUE f; + int e; + + if (flen == 1 && fname[0] == '-') { + f = rb_stdin; + } + else { + int fd; + /* open(2) may block if fname is point to FIFO and it's empty. Let's + use O_NONBLOCK. */ + const int MODE_TO_LOAD = O_RDONLY | ( +#if defined O_NONBLOCK && HAVE_FCNTL + /* TODO: fix conflicting O_NONBLOCK in ruby/win32.h */ + !(O_NONBLOCK & O_ACCMODE) ? O_NONBLOCK : +#endif +#if defined O_NDELAY && HAVE_FCNTL + !(O_NDELAY & O_ACCMODE) ? O_NDELAY : +#endif + 0); + int mode = MODE_TO_LOAD; +#if defined DOSISH || defined __CYGWIN__ +# define isdirsep(x) ((x) == '/' || (x) == '\\') + { + static const char exeext[] = ".exe"; + enum {extlen = sizeof(exeext)-1}; + if (flen > extlen && !isdirsep(fname[flen-extlen-1]) && + STRNCASECMP(fname+flen-extlen, exeext, extlen) == 0) { + mode |= O_BINARY; + *xflag = 1; + } + } +#endif + + if ((fd = rb_cloexec_open(fname, mode, 0)) < 0) { + e = errno; + if (!rb_gc_for_fd(e)) { + rb_load_fail(fname_v, strerror(e)); + } + if ((fd = rb_cloexec_open(fname, mode, 0)) < 0) { + rb_load_fail(fname_v, strerror(errno)); + } + } + rb_update_max_fd(fd); + + if (MODE_TO_LOAD != O_RDONLY && (e = disable_nonblock(fd)) != 0) { + (void)close(fd); + rb_load_fail(fname_v, strerror(e)); + } + + e = ruby_is_fd_loadable(fd); + if (!e) { + e = errno; + (void)close(fd); + rb_load_fail(fname_v, strerror(e)); + } + + f = rb_io_fdopen(fd, mode, fname); + if (e < 0) { + /* + We need to wait if FIFO is empty. It's FIFO's semantics. + rb_thread_wait_fd() release GVL. So, it's safe. + */ + rb_io_wait(f, RB_INT2NUM(RUBY_IO_READABLE), Qnil); + } + } + return f; +} + +static VALUE +restore_load_file(VALUE arg) +{ + struct load_file_arg *argp = (struct load_file_arg *)arg; + VALUE f = argp->f; + + if (!NIL_P(f) && f != rb_stdin) { + rb_io_close(f); + } + return Qnil; +} + +static VALUE +load_file(VALUE parser, VALUE fname, VALUE f, int script, ruby_cmdline_options_t *opt) +{ + struct load_file_arg arg; + arg.parser = parser; + arg.fname = fname; + arg.script = script; + arg.opt = opt; + arg.f = f; + return rb_ensure(load_file_internal, (VALUE)&arg, + restore_load_file, (VALUE)&arg); +} + +void * +rb_load_file(const char *fname) +{ + VALUE fname_v = rb_str_new_cstr(fname); + return rb_load_file_str(fname_v); +} + +void * +rb_load_file_str(VALUE fname_v) +{ + VALUE ast_value; + ast_value = rb_parser_load_file(rb_parser_new(), fname_v); + return (void *)rb_ruby_ast_data_get(ast_value); +} + +VALUE +rb_parser_load_file(VALUE parser, VALUE fname_v) +{ + ruby_cmdline_options_t opt; + int xflag = 0; + VALUE f = open_load_file(fname_v, &xflag); + cmdline_options_init(&opt)->xflag = xflag != 0; + return load_file(parser, fname_v, f, 0, &opt); +} + +/* + * call-seq: + * Process.argv0 -> frozen_string + * + * Returns the name of the script being executed. The value is not + * affected by assigning a new value to $0. + * + * This method first appeared in Ruby 2.1 to serve as a global + * variable free means to get the script name. + */ + +static VALUE +proc_argv0(VALUE process) +{ + return rb_orig_progname; +} + +static VALUE ruby_setproctitle(VALUE title); + +/* + * call-seq: + * Process.setproctitle(string) -> string + * + * Sets the process title that appears on the ps(1) command. Not + * necessarily effective on all platforms. No exception will be + * raised regardless of the result, nor will NotImplementedError be + * raised even if the platform does not support the feature. + * + * Calling this method does not affect the value of $0. + * + * Process.setproctitle('myapp: worker #%d' % worker_id) + * + * This method first appeared in Ruby 2.1 to serve as a global + * variable free means to change the process title. + */ + +static VALUE +proc_setproctitle(VALUE process, VALUE title) +{ + return ruby_setproctitle(title); +} + +static VALUE +ruby_setproctitle(VALUE title) +{ + const char *ptr = StringValueCStr(title); + setproctitle("%.*s", RSTRING_LENINT(title), ptr); + return title; +} + +static void +set_arg0(VALUE val, ID id, VALUE *_) +{ + if (origarg.argv == 0) + rb_raise(rb_eRuntimeError, "$0 not initialized"); + + rb_progname = rb_str_new_frozen(ruby_setproctitle(val)); +} + +static inline VALUE +external_str_new_cstr(const char *p) +{ +#if UTF8_PATH + VALUE str = rb_utf8_str_new_cstr(p); + str = str_conv_enc(str, NULL, rb_default_external_encoding()); + return str; +#else + return rb_external_str_new_cstr(p); +#endif +} + +static void +set_progname(VALUE name) +{ + rb_orig_progname = rb_progname = name; + rb_vm_set_progname(rb_progname); +} + +void +ruby_script(const char *name) +{ + if (name) { + set_progname(rb_str_freeze(external_str_new_cstr(name))); + } +} + +/*! Sets the current script name to this value. + * + * Same as ruby_script() but accepts a VALUE. + */ +void +ruby_set_script_name(VALUE name) +{ + set_progname(rb_str_new_frozen(name)); +} + +static void +init_ids(ruby_cmdline_options_t *opt) +{ + rb_uid_t uid = getuid(); + rb_uid_t euid = geteuid(); + rb_gid_t gid = getgid(); + rb_gid_t egid = getegid(); + + if (uid != euid) opt->setids |= 1; + if (egid != gid) opt->setids |= 2; +} + +#undef forbid_setid +static void +forbid_setid(const char *s, const ruby_cmdline_options_t *opt) +{ + if (opt->setids & 1) + rb_raise(rb_eSecurityError, "no %s allowed while running setuid", s); + if (opt->setids & 2) + rb_raise(rb_eSecurityError, "no %s allowed while running setgid", s); +} + +static VALUE +verbose_getter(ID id, VALUE *ptr) +{ + return *rb_ruby_verbose_ptr(); +} + +static void +verbose_setter(VALUE val, ID id, VALUE *variable) +{ + *rb_ruby_verbose_ptr() = RTEST(val) ? Qtrue : val; +} + +static VALUE +opt_W_getter(ID id, VALUE *dmy) +{ + VALUE v = *rb_ruby_verbose_ptr(); + + switch (v) { + case Qnil: + return INT2FIX(0); + case Qfalse: + return INT2FIX(1); + case Qtrue: + return INT2FIX(2); + default: + return Qnil; + } +} + +static VALUE +debug_getter(ID id, VALUE *dmy) +{ + return *rb_ruby_debug_ptr(); +} + +static void +debug_setter(VALUE val, ID id, VALUE *dmy) +{ + *rb_ruby_debug_ptr() = val; +} + +void +ruby_prog_init(void) +{ + rb_define_virtual_variable("$VERBOSE", verbose_getter, verbose_setter); + rb_define_virtual_variable("$-v", verbose_getter, verbose_setter); + rb_define_virtual_variable("$-w", verbose_getter, verbose_setter); + rb_define_virtual_variable("$-W", opt_W_getter, rb_gvar_readonly_setter); + rb_define_virtual_variable("$DEBUG", debug_getter, debug_setter); + rb_define_virtual_variable("$-d", debug_getter, debug_setter); + + rb_gvar_ractor_local("$VERBOSE"); + rb_gvar_ractor_local("$-v"); + rb_gvar_ractor_local("$-w"); + rb_gvar_ractor_local("$-W"); + rb_gvar_ractor_local("$DEBUG"); + rb_gvar_ractor_local("$-d"); rb_define_hooked_variable("$0", &rb_progname, 0, set_arg0); + rb_define_hooked_variable("$PROGRAM_NAME", &rb_progname, 0, set_arg0); - rb_argv = ary_new(); - rb_define_readonly_variable("$*", &rb_argv); - rb_define_global_const("ARGV", rb_argv); - rb_define_readonly_variable("$-a", &do_split); - rb_global_variable(&rb_argv0); + rb_define_module_function(rb_mProcess, "argv0", proc_argv0, 0); + rb_define_module_function(rb_mProcess, "setproctitle", proc_setproctitle, 1); -#ifdef MSDOS /* - * There is no way we can refer to them from ruby, so close them to save - * space. + * ARGV contains the command line arguments used to run ruby. + * + * A library like OptionParser can be used to process command-line + * arguments. */ - (void)fclose(stdaux); - (void)fclose(stdprn); -#endif + rb_define_global_const("ARGV", rb_argv); } void -ruby_set_argv(argc, argv) - int argc; - char **argv; +ruby_set_argv(int argc, char **argv) { int i; + VALUE av = rb_argv; -#if defined(USE_DLN_A_OUT) - if (origargv) dln_argv0 = origargv[0]; - else dln_argv0 = argv[0]; -#endif - for (i=0; i < argc; i++) { - ary_push(rb_argv, str_taint(str_new2(argv[i]))); + rb_ary_clear(av); + for (i = 0; i < argc; i++) { + VALUE arg = external_str_new_cstr(argv[i]); + + OBJ_FREEZE(arg); + rb_ary_push(av, arg); } } -void -ruby_process_options(argc, argv) - int argc; - char **argv; +void * +ruby_process_options(int argc, char **argv) { - origargc = argc; origargv = argv; - ruby_script(argv[0]); /* for the time being */ - rb_argv0 = rb_progname; -#if defined(USE_DLN_A_OUT) - dln_argv0 = argv[0]; + ruby_cmdline_options_t opt; + VALUE iseq; + const char *script_name = (argc > 0 && argv[0]) ? argv[0] : ruby_engine; + + if (!origarg.argv || origarg.argc <= 0) { + origarg.argc = argc; + origarg.argv = argv; + } + set_progname(external_str_new_cstr(script_name)); /* for the time being */ + rb_argv0 = rb_str_new4(rb_progname); + rb_vm_register_global_object(rb_argv0); + +#ifndef HAVE_SETPROCTITLE + ruby_init_setproctitle(argc, argv); #endif - proc_options(&argc, &argv); - ruby_script(script); - ruby_set_argv(argc, argv); - if (do_check && nerrs == 0) { - printf("Syntax OK\n"); - exit(0); + if (getenv("RUBY_FREE_AT_EXIT")) { + rb_free_at_exit = true; + rb_category_warn(RB_WARN_CATEGORY_EXPERIMENTAL, "Free at exit is experimental and may be unstable"); } - if (do_print) { - yyappend_print(); + + iseq = process_options(argc, argv, cmdline_options_init(&opt)); + + if (opt.crash_report && *opt.crash_report) { + void ruby_set_crash_report(const char *template); + ruby_set_crash_report(opt.crash_report); } - if (do_loop) { - yywhile_loop(do_line, do_split); + + return (void*)(struct RData*)iseq; +} + +static void +fill_standard_fds(void) +{ + int f0, f1, f2, fds[2]; + struct stat buf; + f0 = fstat(0, &buf) == -1 && errno == EBADF; + f1 = fstat(1, &buf) == -1 && errno == EBADF; + f2 = fstat(2, &buf) == -1 && errno == EBADF; + if (f0) { + if (pipe(fds) == 0) { + close(fds[1]); + if (fds[0] != 0) { + dup2(fds[0], 0); + close(fds[0]); + } + } } - if (e_fp) { - fclose(e_fp); - e_fp = NULL; + if (f1 || f2) { + if (pipe(fds) == 0) { + close(fds[0]); + if (f1 && fds[1] != 1) + dup2(fds[1], 1); + if (f2 && fds[1] != 2) + dup2(fds[1], 2); + if (fds[1] != 1 && fds[1] != 2) + close(fds[1]); + } } - if (e_tmpname) { - unlink(e_tmpname); - e_tmpname = NULL; +} + +void +ruby_sysinit(int *argc, char ***argv) +{ +#if defined(_WIN32) + rb_w32_sysinit(argc, argv); +#endif + if (*argc >= 0 && *argv) { + origarg.argc = *argc; + origarg.argv = *argv; } + fill_standard_fds(); } + +#ifdef RUBY_ASAN_ENABLED +RUBY_SYMBOL_EXPORT_BEGIN +const char ruby_asan_default_options[] = "use_sigaltstack=0:detect_leaks=0"; +RUBY_SYMBOL_EXPORT_END +#endif |