13 #include "internal/error.h"
14 #include "internal/gc.h"
15 #include "internal/hash.h"
16 #include "internal/object.h"
17 #include "internal/symbol.h"
18 #include "internal/vm.h"
26 #if defined(USE_SYMBOL_GC) && !(USE_SYMBOL_GC+0)
28 # define USE_SYMBOL_GC 0
31 # define USE_SYMBOL_GC 1
33 #if defined(SYMBOL_DEBUG) && (SYMBOL_DEBUG+0)
35 # define SYMBOL_DEBUG 1
38 # define SYMBOL_DEBUG 0
40 #ifndef CHECK_ID_SERIAL
41 # define CHECK_ID_SERIAL SYMBOL_DEBUG
44 #define SYMBOL_PINNED_P(sym) (RSYMBOL(sym)->id&~ID_SCOPE_MASK)
46 #define STATIC_SYM2ID(sym) RSHIFT((VALUE)(sym), RUBY_SPECIAL_SHIFT)
49 static ID register_static_symid_str(
ID,
VALUE);
50 #define REGISTER_SYMID(id, name) register_static_symid((id), (name), strlen(name), enc)
53 #define is_identchar(p,e,enc) (ISALNUM((unsigned char)*(p)) || (*(p)) == '_' || !ISASCII(*(p)))
55 #define op_tbl_count numberof(op_tbl)
56 STATIC_ASSERT(op_tbl_name_size,
sizeof(op_tbl[0].name) == 3);
57 #define op_tbl_len(i) (!op_tbl[i].name[1] ? 1 : !op_tbl[i].name[2] ? 2 : 3)
65 for (i =
'!'; i <=
'~'; ++i) {
68 register_static_symid(i, &c, 1, enc);
71 for (i = 0; i < op_tbl_count; ++i) {
72 register_static_symid(op_tbl[i].token, op_tbl[i].name, op_tbl_len(i), enc);
76 static const int ID_ENTRY_UNIT = 512;
96 VALUE dsym_fstrs = rb_ident_hash_new();
97 symbols->dsymbol_fstr_hash = dsym_fstrs;
98 rb_vm_register_global_object(dsym_fstrs);
101 symbols->str_sym = st_init_table_with_size(&symhash, 1000);
103 rb_vm_register_global_object(symbols->ids);
111 WARN_UNUSED_RESULT(
static ID lookup_str_id(
VALUE str));
113 WARN_UNUSED_RESULT(
static VALUE lookup_str_sym(
const VALUE str));
114 WARN_UNUSED_RESULT(
static VALUE lookup_id_str(
ID id));
115 WARN_UNUSED_RESULT(
static ID intern_str(
VALUE str,
int mutable));
117 #define GLOBAL_SYMBOLS_ENTER(symbols) rb_symbols_t *symbols = &ruby_global_symbols; RB_VM_LOCK_ENTER()
118 #define GLOBAL_SYMBOLS_LEAVE() RB_VM_LOCK_LEAVE()
126 if (!is_notop_id(
id)) {
128 case tAREF:
case tASET:
131 rb_name_error(
id,
"cannot make operator ID :%"PRIsVALUE
" attrset",
137 case ID_LOCAL:
case ID_INSTANCE:
case ID_GLOBAL:
138 case ID_CONST:
case ID_CLASS:
case ID_JUNK:
144 if ((str = lookup_id_str(
id)) != 0) {
145 rb_name_error(
id,
"cannot make unknown type ID %d:%"PRIsVALUE
" attrset",
157 if (!(str = lookup_id_str(
id))) {
158 static const char id_types[][8] = {
168 rb_name_error(
id,
"cannot make anonymous %.*s ID %"PRIxVALUE
" attrset",
169 (
int)
sizeof(id_types[0]), id_types[scope], (
VALUE)
id);
173 sym = lookup_str_sym(str);
174 id = sym ?
rb_sym2id(sym) : intern_str(str, 1);
179 is_special_global_name(
const char *m,
const char *e,
rb_encoding *enc)
183 if (m >= e)
return 0;
184 if (is_global_name_punct(*m)) {
187 else if (*m ==
'-') {
188 if (++m >= e)
return 0;
189 if (is_identchar(m, e, enc)) {
199 }
while (m < e &&
ISDIGIT(*m));
201 return m == e ? mb + 1 : 0;
217 rb_sym_constant_char_p(
const char *name,
long nlen,
rb_encoding *enc)
220 const char *end = name + nlen;
222 if (nlen < 1)
return FALSE;
230 if (ONIGENC_IS_UNICODE(enc)) {
231 static int ctype_titlecase = 0;
232 if (!ctype_titlecase) {
233 static const UChar cname[] =
"titlecaseletter";
234 static const UChar *
const end = cname +
sizeof(cname) - 1;
235 ctype_titlecase = ONIGENC_PROPERTY_NAME_TO_CTYPE(enc, cname, end);
241 OnigUChar fold[ONIGENC_GET_CASE_FOLD_CODES_MAX_NUM];
242 const OnigUChar *beg = (
const OnigUChar *)name;
243 int r = enc->mbc_case_fold(ONIGENC_CASE_FOLD,
244 &beg, (
const OnigUChar *)end,
246 if (r > 0 && (r !=
len || memcmp(fold, name, r)))
252 #define IDSET_ATTRSET_FOR_SYNTAX ((1U<<ID_LOCAL)|(1U<<ID_CONST))
253 #define IDSET_ATTRSET_FOR_INTERN (~(~0U<<(1<<ID_SCOPE_SHIFT)) & ~(1U<<ID_ATTRSET))
256 const enum { invalid, stophere, needmore, } kind;
257 const enum ruby_id_types type;
261 #define t struct enc_synmane_type_leading_chars_tag
264 enc_synmane_type_leading_chars(const char *name,
long len,
rb_encoding *enc,
int allowed_attrset)
266 const char *m = name;
267 const char *e = m +
len;
270 return (t) { invalid, 0, 0, };
273 return (t) { invalid, 0, 0, };
275 else if (
len <= 0 ) {
276 return (t) { invalid, 0, 0, };
280 return (t) { invalid, 0, 0, };
283 if (is_special_global_name(++m, e, enc)) {
284 return (t) { stophere, ID_GLOBAL,
len, };
287 return (t) { needmore, ID_GLOBAL, 1, };
292 default:
return (t) { needmore, ID_INSTANCE, 1, };
293 case '@':
return (t) { needmore, ID_CLASS, 2, };
298 default:
return (t) { stophere, ID_JUNK, 1, };
299 case '<':
return (t) { stophere, ID_JUNK, 2, };
302 default:
return (t) { stophere, ID_JUNK, 2, };
303 case '>':
return (t) { stophere, ID_JUNK, 3, };
309 default:
return (t) { stophere, ID_JUNK, 1, };
310 case '>':
case '=':
return (t) { stophere, ID_JUNK, 2, };
315 default:
return (t) { invalid, 0, 1, };
316 case '~':
return (t) { stophere, ID_JUNK, 2, };
319 default:
return (t) { stophere, ID_JUNK, 2, };
320 case '=':
return (t) { stophere, ID_JUNK, 3, };
326 default:
return (t) { stophere, ID_JUNK, 1, };
327 case '*':
return (t) { stophere, ID_JUNK, 2, };
332 default:
return (t) { stophere, ID_JUNK, 1, };
333 case '@':
return (t) { stophere, ID_JUNK, 2, };
336 case '|':
case '^':
case '&':
case '/':
case '%':
case '~':
case '`':
337 return (t) { stophere, ID_JUNK, 1, };
341 default:
return (t) { needmore, ID_JUNK, 0, };
344 default:
return (t) { stophere, ID_JUNK, 2, };
345 case '=':
return (t) { stophere, ID_JUNK, 3, };
351 case '=':
case '~':
return (t) { stophere, ID_JUNK, 2, };
353 if (allowed_attrset & (1U << ID_JUNK)) {
354 return (t) { needmore, ID_JUNK, 1, };
357 return (t) { stophere, ID_JUNK, 1, };
362 if (rb_sym_constant_char_p(name,
len, enc)) {
363 return (t) { needmore, ID_CONST, 0, };
366 return (t) { needmore, ID_LOCAL, 0, };
373 rb_enc_symname_type(
const char *name,
long len,
rb_encoding *enc,
unsigned int allowed_attrset)
376 enc_synmane_type_leading_chars(name,
len, enc, allowed_attrset);
377 const char *m = name + f.nread;
378 const char *e = name +
len;
379 int type = (int)f.type;
382 case invalid:
return -1;
383 case stophere:
break;
387 if (
len > 1 && *(e-1) ==
'=') {
388 type = rb_enc_symname_type(name,
len-1, enc, allowed_attrset);
389 if (allowed_attrset & (1U <<
type))
return ID_ATTRSET;
393 while (m < e && is_identchar(m, e, enc)) m +=
rb_enc_mbclen(m, e, enc);
397 if (
type == ID_GLOBAL ||
type == ID_CLASS ||
type == ID_INSTANCE)
return -1;
400 if (m + 1 < e || *m !=
'=')
break;
403 if (!(allowed_attrset & (1U <<
type)))
return -1;
410 return m == e ?
type : -1;
416 return rb_enc_symname_type(name,
len, enc, IDSET_ATTRSET_FOR_SYNTAX) != -1;
420 rb_str_symname_type(
VALUE name,
unsigned int allowed_attrset)
436 size_t idx = num / ID_ENTRY_UNIT;
438 VALUE ary, ids = symbols->ids;
443 idx = (num % ID_ENTRY_UNIT) * ID_ENTRY_SIZE;
449 get_id_serial_entry(rb_id_serial_t num,
ID id,
const enum id_entry_type t)
453 GLOBAL_SYMBOLS_ENTER(symbols);
455 if (num && num <= symbols->last_id) {
456 size_t idx = num / ID_ENTRY_UNIT;
457 VALUE ids = symbols->ids;
460 long pos = (long)(num % ID_ENTRY_UNIT) * ID_ENTRY_SIZE;
466 else if (CHECK_ID_SERIAL) {
469 if (t != ID_ENTRY_SYM)
472 if (STATIC_SYM2ID(sym) !=
id) result = 0;
475 if (RSYMBOL(sym)->
id !=
id) result = 0;
482 GLOBAL_SYMBOLS_LEAVE();
501 get_id_entry(
ID id,
const enum id_entry_type t)
503 return get_id_serial_entry(rb_id_to_serial(
id),
id, t);
507 rb_static_id_valid_p(
ID id)
509 return STATIC_ID2SYM(
id) == get_id_entry(
id, ID_ENTRY_SYM);
513 rb_id_serial_to_id(rb_id_serial_t num)
515 if (is_notop_id((
ID)num)) {
516 VALUE sym = get_id_serial_entry(num, 0, ID_ENTRY_SYM);
517 if (sym)
return SYM2ID(sym);
518 return ((
ID)num << ID_SCOPE_SHIFT) | ID_INTERNAL | ID_STATIC_SYM;
526 register_sym_update_callback(st_data_t *key, st_data_t *value, st_data_t arg,
int existing)
529 rb_fatal(
"symbol :% "PRIsVALUE
" is already registered with %"PRIxVALUE,
542 st_update(symbols->str_sym, (st_data_t)str,
543 register_sym_update_callback, (st_data_t)sym);
546 st_add_direct(symbols->str_sym, (st_data_t)str, (st_data_t)sym);
551 rb_free_static_symid_str(
void)
553 GLOBAL_SYMBOLS_ENTER(symbols)
555 st_free_table(symbols->str_sym);
557 GLOBAL_SYMBOLS_LEAVE();
565 st_data_t str_data = (st_data_t)str;
566 if (!st_delete(symbols->str_sym, &str_data, NULL)) {
575 return register_static_symid_str(
id, str);
579 register_static_symid_str(
ID id,
VALUE str)
581 rb_id_serial_t num = rb_id_to_serial(
id);
582 VALUE sym = STATIC_ID2SYM(
id);
585 str = rb_fstring(str);
589 GLOBAL_SYMBOLS_ENTER(symbols)
591 register_sym(symbols, str, sym);
592 set_id_entry(symbols, num, str, sym);
594 GLOBAL_SYMBOLS_LEAVE();
600 sym_check_asciionly(
VALUE str,
bool fake_str)
624 must_be_dynamic_symbol(
VALUE x)
634 rb_bug(
"wrong argument: inappropriate Symbol (%p)", (
void *)x);
638 rb_bug(
"wrong argument type %s (expected Symbol)", rb_builtin_class_name(x));
660 obj->hashval = RSHIFT((
long)hashval, 1);
661 register_sym(symbols, str, (
VALUE)obj);
663 RUBY_DTRACE_CREATE_HOOK(SYMBOL,
RSTRING_PTR(obj->fstr));
673 if (UNLIKELY(rb_objspace_garbage_object_p(sym))) {
674 const VALUE fstr = RSYMBOL(sym)->fstr;
675 const ID type = RSYMBOL(sym)->id & ID_SCOPE_MASK;
676 RSYMBOL(sym)->fstr = 0;
677 unregister_sym(symbols, fstr, sym);
686 lookup_str_id(
VALUE str)
691 GLOBAL_SYMBOLS_ENTER(symbols);
693 found = st_lookup(symbols->str_sym, (st_data_t)str, &sym_data);
695 GLOBAL_SYMBOLS_LEAVE();
701 return STATIC_SYM2ID(sym);
704 ID id = RSYMBOL(sym)->id;
705 if (
id & ~ID_SCOPE_MASK)
return id;
708 rb_bug(
"non-symbol object %s:%"PRIxVALUE
" for %"PRIsVALUE
" in symbol table",
709 rb_builtin_class_name(sym), sym, str);
719 if (st_lookup(symbols->str_sym, (st_data_t)str, &sym_data)) {
722 sym = dsymbol_check(symbols, sym);
732 lookup_str_sym(
const VALUE str)
736 GLOBAL_SYMBOLS_ENTER(symbols);
738 sym = lookup_str_sym_with_lock(symbols, str);
740 GLOBAL_SYMBOLS_LEAVE();
748 return get_id_entry(
id, ID_ENTRY_STR);
756 VALUE str = rb_setup_fake_str(&fake_str, name,
len, enc);
758 sym = lookup_str_sym(str);
761 return intern_str(str, 1);
768 rb_id_serial_t next_serial = symbols->last_id + 1;
770 if (next_serial == 0) {
774 const size_t num = ++symbols->last_id;
775 id = num << ID_SCOPE_SHIFT;
785 GLOBAL_SYMBOLS_ENTER(symbols);
787 id = next_id_base_with_lock(symbols);
789 GLOBAL_SYMBOLS_LEAVE();
794 intern_str(
VALUE str,
int mutable)
799 id = rb_str_symname_type(str, IDSET_ATTRSET_FOR_INTERN);
800 if (
id == (
ID)-1)
id = ID_JUNK;
801 if (sym_check_asciionly(str,
false)) {
805 if ((nid = next_id_base()) == (
ID)-1) {
812 return register_static_symid_str(
id, str);
831 VALUE sym = lookup_str_sym(str);
837 return intern_str(str, 0);
841 rb_gc_free_dsymbol(
VALUE sym)
843 VALUE str = RSYMBOL(sym)->fstr;
846 RSYMBOL(sym)->fstr = 0;
848 GLOBAL_SYMBOLS_ENTER(symbols);
850 unregister_sym(symbols, str, sym);
851 rb_hash_delete_entry(symbols->dsymbol_fstr_hash, str);
853 GLOBAL_SYMBOLS_LEAVE();
882 GLOBAL_SYMBOLS_ENTER(symbols);
884 sym = lookup_str_sym_with_lock(symbols, str);
889 else if (USE_SYMBOL_GC) {
892 if (enc != ascii && sym_check_asciionly(str,
false)) {
902 str = rb_fstring(str);
903 int type = rb_str_symname_type(str, IDSET_ATTRSET_FOR_INTERN);
908 ID id = intern_str(str, 0);
912 GLOBAL_SYMBOLS_LEAVE();
921 id = STATIC_SYM2ID(sym);
924 GLOBAL_SYMBOLS_ENTER(symbols);
926 sym = dsymbol_check(symbols, sym);
927 id = RSYMBOL(sym)->id;
929 if (UNLIKELY(!(
id & ~ID_SCOPE_MASK))) {
930 VALUE fstr = RSYMBOL(sym)->fstr;
931 ID num = next_id_base_with_lock(symbols);
933 RSYMBOL(sym)->id =
id |= num;
936 set_id_entry(symbols, rb_id_to_serial(num), fstr, sym);
937 rb_hash_delete_entry(symbols->dsymbol_fstr_hash, fstr);
940 GLOBAL_SYMBOLS_LEAVE();
944 rb_builtin_class_name(sym));
953 if (!DYNAMIC_ID_P(x))
return STATIC_ID2SYM(x);
954 return get_id_entry(x, ID_ENTRY_SYM);
974 str = RSYMBOL(sym)->fstr;
988 return lookup_id_str(
id);
1001 rb_make_internal_id(
void)
1003 return next_id_base() | ID_INTERNAL | ID_STATIC_SYM;
1007 rb_make_temporary_id(
size_t n)
1009 const ID max_id = RB_ID_SERIAL_MAX & ~0xffff;
1010 const ID id = max_id - (
ID)n;
1011 if (
id <= ruby_global_symbols.last_id) {
1014 return (
id << ID_SCOPE_SHIFT) | ID_STATIC_SYM | ID_INTERNAL;
1018 symbols_i(st_data_t key, st_data_t value, st_data_t arg)
1030 else if (!SYMBOL_PINNED_P(sym) && rb_objspace_garbage_object_p(sym)) {
1031 RSYMBOL(sym)->fstr = 0;
1046 GLOBAL_SYMBOLS_ENTER(symbols);
1049 st_foreach(symbols->str_sym, symbols_i, ary);
1051 GLOBAL_SYMBOLS_LEAVE();
1057 rb_sym_immortal_count(
void)
1059 return (
size_t)ruby_global_symbols.last_id;
1065 return is_const_id(
id);
1071 return is_class_id(
id);
1077 return is_global_id(
id);
1083 return is_instance_id(
id);
1089 return is_attrset_id(
id);
1095 return is_local_id(
id);
1101 return is_junk_id(
id);
1105 rb_is_const_sym(
VALUE sym)
1107 return is_const_sym(sym);
1111 rb_is_attrset_sym(
VALUE sym)
1113 return is_attrset_sym(sym);
1120 VALUE name = *namep;
1123 return STATIC_SYM2ID(name);
1126 if (SYMBOL_PINNED_P(name)) {
1127 return RSYMBOL(name)->id;
1130 *namep = RSYMBOL(name)->fstr;
1144 sym_check_asciionly(name,
false);
1146 return lookup_str_id(name);
1151 rb_get_symbol_id(
VALUE name)
1154 return STATIC_SYM2ID(name);
1157 if (SYMBOL_PINNED_P(name)) {
1158 return RSYMBOL(name)->id;
1165 return lookup_str_id(name);
1178 VALUE name = *namep;
1184 if (!SYMBOL_PINNED_P(name)) {
1185 GLOBAL_SYMBOLS_ENTER(symbols);
1187 name = dsymbol_check(symbols, name);
1189 GLOBAL_SYMBOLS_LEAVE();
1205 sym_check_asciionly(name,
false);
1207 if ((sym = lookup_str_sym(name)) != 0) {
1218 const VALUE name = rb_setup_fake_str(&fake_str,
ptr,
len, enc);
1220 sym_check_asciionly(name,
true);
1222 return lookup_str_id(name);
1230 const VALUE name = rb_setup_fake_str(&fake_str,
ptr,
len, enc);
1232 sym_check_asciionly(name,
true);
1234 if ((sym = lookup_str_sym(name)) != 0) {
1241 #undef rb_sym_intern_ascii_cstr
1246 FUNC_MINIMIZED(
VALUE rb_sym_intern_ascii(
const char *
ptr,
long len));
1247 FUNC_MINIMIZED(
VALUE rb_sym_intern_ascii_cstr(
const char *
ptr));
1254 const VALUE name = rb_setup_fake_str(&fake_str,
ptr,
len, enc);
1259 rb_sym_intern_ascii(
const char *
ptr,
long len)
1265 rb_sym_intern_ascii_cstr(
const char *
ptr)
1267 return rb_sym_intern_ascii(
ptr, strlen(
ptr));
1271 rb_to_symbol_type(
VALUE obj)
1273 return rb_convert_type_with_id(obj,
T_SYMBOL,
"Symbol", idTo_sym);
1277 rb_is_const_name(
VALUE name)
1279 return rb_str_symname_type(name, 0) == ID_CONST;
1283 rb_is_class_name(
VALUE name)
1285 return rb_str_symname_type(name, 0) == ID_CLASS;
1289 rb_is_instance_name(
VALUE name)
1291 return rb_str_symname_type(name, 0) == ID_INSTANCE;
1295 rb_is_local_name(
VALUE name)
1297 return rb_str_symname_type(name, 0) == ID_LOCAL;
1300 #include "id_table.c"
1301 #include "symbol.rbinc"
#define RUBY_ASSERT_BUILTIN_TYPE(obj, type)
A variant of RUBY_ASSERT that asserts when either RUBY_DEBUG or built-in type of obj is type.
static bool rb_enc_isupper(OnigCodePoint c, rb_encoding *enc)
Identical to rb_isupper(), except it additionally takes an encoding.
static bool rb_enc_isctype(OnigCodePoint c, OnigCtype t, rb_encoding *enc)
Queries if the passed code point is of passed character type in the passed encoding.
static bool rb_enc_islower(OnigCodePoint c, rb_encoding *enc)
Identical to rb_islower(), except it additionally takes an encoding.
#define ENC_CODERANGE_7BIT
Old name of RUBY_ENC_CODERANGE_7BIT.
#define T_STRING
Old name of RUBY_T_STRING.
#define ISUPPER
Old name of rb_isupper.
#define ID2SYM
Old name of RB_ID2SYM.
#define OBJ_FREEZE
Old name of RB_OBJ_FREEZE.
#define SYM2ID
Old name of RB_SYM2ID.
#define ISDIGIT
Old name of rb_isdigit.
#define STATIC_SYM_P
Old name of RB_STATIC_SYM_P.
#define MBCLEN_CHARFOUND_LEN(ret)
Old name of ONIGENC_MBCLEN_CHARFOUND_LEN.
#define ISALPHA
Old name of rb_isalpha.
#define ISASCII
Old name of rb_isascii.
#define Qtrue
Old name of RUBY_Qtrue.
#define DYNAMIC_SYM_P
Old name of RB_DYNAMIC_SYM_P.
#define Qnil
Old name of RUBY_Qnil.
#define Qfalse
Old name of RUBY_Qfalse.
#define ENC_CODERANGE_BROKEN
Old name of RUBY_ENC_CODERANGE_BROKEN.
#define NIL_P
Old name of RB_NIL_P.
#define MBCLEN_CHARFOUND_P(ret)
Old name of ONIGENC_MBCLEN_CHARFOUND_P.
#define FL_WB_PROTECTED
Old name of RUBY_FL_WB_PROTECTED.
#define T_SYMBOL
Old name of RUBY_T_SYMBOL.
#define rb_ary_new2
Old name of rb_ary_new_capa.
#define ISALNUM
Old name of rb_isalnum.
void rb_raise(VALUE exc_class, const char *fmt,...)
Exception entry point.
void rb_bug(const char *fmt,...)
Interpreter panic switch.
void rb_name_error(ID id, const char *fmt,...)
Raises an instance of rb_eNameError.
VALUE rb_eTypeError
TypeError exception.
void rb_name_error_str(VALUE str, const char *fmt,...)
Identical to rb_name_error(), except it takes a VALUE instead of ID.
void rb_fatal(const char *fmt,...)
Raises the unsung "fatal" exception.
VALUE rb_eRuntimeError
RuntimeError exception.
VALUE rb_eEncodingError
EncodingError exception.
VALUE rb_obj_hide(VALUE obj)
Make the object invisible from Ruby code.
VALUE rb_cSymbol
Symbol class.
#define RB_OBJ_WRITE(old, slot, young)
Declaration of a "back" pointer.
int rb_enc_precise_mbclen(const char *p, const char *e, rb_encoding *enc)
Queries the number of bytes of the character at the passed pointer.
VALUE rb_enc_associate(VALUE obj, rb_encoding *enc)
Identical to rb_enc_associate_index(), except it takes an encoding itself instead of its index.
rb_encoding * rb_usascii_encoding(void)
Queries the encoding that represents US-ASCII.
int rb_enc_to_index(rb_encoding *enc)
Queries the index of the encoding.
void rb_enc_set_index(VALUE obj, int encindex)
Destructively assigns an encoding (via its index) to an object.
rb_encoding * rb_ascii8bit_encoding(void)
Queries the encoding that represents ASCII-8BIT a.k.a.
static bool rb_enc_asciicompat(rb_encoding *enc)
Queries if the passed encoding is in some sense compatible with ASCII.
int rb_enc_mbclen(const char *p, const char *e, rb_encoding *enc)
Queries the number of bytes of the character at the passed pointer.
rb_encoding * rb_enc_get(VALUE obj)
Identical to rb_enc_get_index(), except the return type.
static OnigCodePoint rb_enc_mbc_to_codepoint(const char *p, const char *e, rb_encoding *enc)
Identical to rb_enc_codepoint(), except it assumes the passed character is not broken.
static const char * rb_enc_name(rb_encoding *enc)
Queries the (canonical) name of the passed encoding.
int rb_enc_str_coderange(VALUE str)
Scans the passed string to collect its code range.
VALUE rb_enc_str_new(const char *ptr, long len, rb_encoding *enc)
Identical to rb_str_new(), except it additionally takes an encoding.
int rb_enc_symname_p(const char *str, rb_encoding *enc)
Identical to rb_symname_p(), except it additionally takes an encoding.
ID rb_intern3(const char *name, long len, rb_encoding *enc)
Identical to rb_intern2(), except it additionally takes an encoding.
VALUE rb_check_symbol_cstr(const char *ptr, long len, rb_encoding *enc)
Identical to rb_check_id_cstr(), except for the return type.
int rb_enc_symname2_p(const char *name, long len, rb_encoding *enc)
Identical to rb_enc_symname_p(), except it additionally takes the passed string's length.
ID rb_check_id_cstr(const char *ptr, long len, rb_encoding *enc)
Identical to rb_check_id(), except it takes a pointer to a memory region instead of Ruby's string.
Defines RBIMPL_HAS_BUILTIN.
VALUE rb_ary_hidden_new(long capa)
Allocates a hidden (no class) empty array.
VALUE rb_ary_push(VALUE ary, VALUE elem)
Special case of rb_ary_cat() that it adds only one element.
VALUE rb_ary_entry(VALUE ary, long off)
Queries an element of an array.
void rb_ary_store(VALUE ary, long key, VALUE val)
Destructively stores the passed value to the passed array's passed index.
VALUE rb_hash_aset(VALUE hash, VALUE key, VALUE val)
Inserts or replaces ("upsert"s) the objects into the given hash table.
VALUE rb_sym_all_symbols(void)
Collects every single bits of symbols that have ever interned in the entire history of the current pr...
int rb_is_global_id(ID id)
Classifies the given ID, then sees if it is a global variable.
int rb_is_instance_id(ID id)
Classifies the given ID, then sees if it is an instance variable.
int rb_is_const_id(ID id)
Classifies the given ID, then sees if it is a constant.
int rb_is_junk_id(ID)
Classifies the given ID, then sees if it is a junk ID.
int rb_symname_p(const char *str)
Sees if the passed C string constructs a valid syntactic symbol.
ID rb_id_attrset(ID id)
Calculates an ID of attribute writer.
int rb_is_class_id(ID id)
Classifies the given ID, then sees if it is a class variable.
int rb_is_attrset_id(ID id)
Classifies the given ID, then sees if it is an attribute writer.
int rb_is_local_id(ID id)
Classifies the given ID, then sees if it is a local variable.
int rb_str_hash_cmp(VALUE str1, VALUE str2)
Compares two strings.
VALUE rb_str_ellipsize(VALUE str, long len)
Shortens str and adds three dots, an ellipsis, if it is longer than len characters.
VALUE rb_str_dup(VALUE str)
Duplicates a string.
st_index_t rb_str_hash(VALUE str)
Calculates a hash value of a string.
VALUE rb_str_cat(VALUE dst, const char *src, long srclen)
Destructively appends the passed contents to the string.
VALUE rb_check_string_type(VALUE obj)
Try converting an object to its stringised representation using its to_str method,...
VALUE rb_str_intern(VALUE str)
Identical to rb_to_symbol(), except it assumes the receiver being an instance of RString.
ID rb_intern2(const char *name, long len)
Identical to rb_intern(), except it additionally takes the length of the string.
VALUE rb_check_symbol(volatile VALUE *namep)
Identical to rb_check_id(), except it returns an instance of rb_cSymbol instead.
VALUE rb_id2sym(ID id)
Allocates an instance of rb_cSymbol that has the given id.
ID rb_check_id(volatile VALUE *namep)
Detects if the given name is already interned or not.
const char * rb_id2name(ID id)
Retrieves the name mapped to the given id.
ID rb_intern(const char *name)
Finds or creates a symbol of the given name.
VALUE rb_sym2str(VALUE symbol)
Obtain a frozen string representation of a symbol (not including the leading colon).
ID rb_sym2id(VALUE obj)
Converts an instance of rb_cSymbol into an ID.
ID rb_intern_str(VALUE str)
Identical to rb_intern(), except it takes an instance of rb_cString.
VALUE rb_id2str(ID id)
Identical to rb_id2name(), except it returns a frozen Ruby String instead of a C String.
char * ptr
Pointer to the underlying memory region, of at least capa bytes.
int len
Length of the buffer.
#define RB_GC_GUARD(v)
Prevents premature destruction of local objects.
VALUE type(ANYARGS)
ANYARGS-ed function type.
int st_foreach(st_table *q, int_type *w, st_data_t e)
Iteration over the given table.
#define RARRAY_LEN
Just another name of rb_array_len.
#define StringValuePtr(v)
Identical to StringValue, except it returns a char*.
static char * RSTRING_PTR(VALUE str)
Queries the contents pointer of the string.
static long RSTRING_LEN(VALUE str)
Queries the length of the string.
@ RUBY_SPECIAL_SHIFT
Least significant 8 bits are reserved.
uintptr_t ID
Type that represents a Ruby identifier such as a variable name.
uintptr_t VALUE
Type that represents a Ruby object.
static bool RB_TYPE_P(VALUE obj, enum ruby_value_type t)
Queries if the given object is of given type.