Ruby  2.0.0p247(2013-06-27revision41674)
object.c
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1 /**********************************************************************
2 
3  object.c -
4 
5  $Author: nagachika $
6  created at: Thu Jul 15 12:01:24 JST 1993
7 
8  Copyright (C) 1993-2007 Yukihiro Matsumoto
9  Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
10  Copyright (C) 2000 Information-technology Promotion Agency, Japan
11 
12 **********************************************************************/
13 
14 #include "ruby/ruby.h"
15 #include "ruby/st.h"
16 #include "ruby/util.h"
17 #include "ruby/encoding.h"
18 #include <stdio.h>
19 #include <errno.h>
20 #include <ctype.h>
21 #include <math.h>
22 #include <float.h>
23 #include "constant.h"
24 #include "internal.h"
25 #include "probes.h"
26 
33 
37 
41 
42 #define CLASS_OR_MODULE_P(obj) \
43  (!SPECIAL_CONST_P(obj) && \
44  (BUILTIN_TYPE(obj) == T_CLASS || BUILTIN_TYPE(obj) == T_MODULE))
45 
46 /*
47  * call-seq:
48  * obj === other -> true or false
49  *
50  * Case Equality -- For class Object, effectively the same as calling
51  * <code>#==</code>, but typically overridden by descendants to provide
52  * meaningful semantics in +case+ statements.
53  */
54 
55 VALUE
56 rb_equal(VALUE obj1, VALUE obj2)
57 {
58  VALUE result;
59 
60  if (obj1 == obj2) return Qtrue;
61  result = rb_funcall(obj1, id_eq, 1, obj2);
62  if (RTEST(result)) return Qtrue;
63  return Qfalse;
64 }
65 
66 int
67 rb_eql(VALUE obj1, VALUE obj2)
68 {
69  return RTEST(rb_funcall(obj1, id_eql, 1, obj2));
70 }
71 
72 /*
73  * call-seq:
74  * obj == other -> true or false
75  * obj.equal?(other) -> true or false
76  * obj.eql?(other) -> true or false
77  *
78  * Equality --- At the <code>Object</code> level, <code>==</code> returns
79  * <code>true</code> only if +obj+ and +other+ are the same object.
80  * Typically, this method is overridden in descendant classes to provide
81  * class-specific meaning.
82  *
83  * Unlike <code>==</code>, the <code>equal?</code> method should never be
84  * overridden by subclasses as it is used to determine object identity
85  * (that is, <code>a.equal?(b)</code> if and only if <code>a</code> is the
86  * same object as <code>b</code>):
87  *
88  * obj = "a"
89  * other = obj.dup
90  *
91  * a == other #=> true
92  * a.equal? other #=> false
93  * a.equal? a #=> true
94  *
95  * The <code>eql?</code> method returns <code>true</code> if +obj+ and
96  * +other+ refer to the same hash key. This is used by Hash to test members
97  * for equality. For objects of class <code>Object</code>, <code>eql?</code>
98  * is synonymous with <code>==</code>. Subclasses normally continue this
99  * tradition by aliasing <code>eql?</code> to their overridden <code>==</code>
100  * method, but there are exceptions. <code>Numeric</code> types, for
101  * example, perform type conversion across <code>==</code>, but not across
102  * <code>eql?</code>, so:
103  *
104  * 1 == 1.0 #=> true
105  * 1.eql? 1.0 #=> false
106  */
107 
108 VALUE
110 {
111  if (obj1 == obj2) return Qtrue;
112  return Qfalse;
113 }
114 
115 /*
116  * Generates a Fixnum hash value for this object. This function must have the
117  * property that <code>a.eql?(b)</code> implies <code>a.hash == b.hash</code>.
118  *
119  * The hash value is used along with #eql? by the Hash class to determine if
120  * two objects reference the same hash key. Any hash value that exceeds the
121  * capacity of a Fixnum will be truncated before being used.
122  *
123  * The hash value for an object may not be identical across invocations or
124  * implementations of ruby. If you need a stable identifier across ruby
125  * invocations and implementations you will need to generate one with a custom
126  * method.
127  */
128 VALUE
130 {
131  VALUE oid = rb_obj_id(obj);
132 #if SIZEOF_LONG == SIZEOF_VOIDP
133  st_index_t index = NUM2LONG(oid);
134 #elif SIZEOF_LONG_LONG == SIZEOF_VOIDP
135  st_index_t index = NUM2LL(oid);
136 #else
137 # error not supported
138 #endif
140  return LONG2FIX(h);
141 }
142 
143 /*
144  * call-seq:
145  * !obj -> true or false
146  *
147  * Boolean negate.
148  */
149 
150 VALUE
152 {
153  return RTEST(obj) ? Qfalse : Qtrue;
154 }
155 
156 /*
157  * call-seq:
158  * obj != other -> true or false
159  *
160  * Returns true if two objects are not-equal, otherwise false.
161  */
162 
163 VALUE
165 {
166  VALUE result = rb_funcall(obj1, id_eq, 1, obj2);
167  return RTEST(result) ? Qfalse : Qtrue;
168 }
169 
170 VALUE
172 {
173  if (cl == 0)
174  return 0;
175  while ((RBASIC(cl)->flags & FL_SINGLETON) || BUILTIN_TYPE(cl) == T_ICLASS) {
176  cl = RCLASS_SUPER(cl);
177  }
178  return cl;
179 }
180 
181 /*
182  * call-seq:
183  * obj.class -> class
184  *
185  * Returns the class of <i>obj</i>. This method must always be
186  * called with an explicit receiver, as <code>class</code> is also a
187  * reserved word in Ruby.
188  *
189  * 1.class #=> Fixnum
190  * self.class #=> Object
191  */
192 
193 VALUE
195 {
196  return rb_class_real(CLASS_OF(obj));
197 }
198 
199 /*
200  * call-seq:
201  * obj.singleton_class -> class
202  *
203  * Returns the singleton class of <i>obj</i>. This method creates
204  * a new singleton class if <i>obj</i> does not have it.
205  *
206  * If <i>obj</i> is <code>nil</code>, <code>true</code>, or
207  * <code>false</code>, it returns NilClass, TrueClass, or FalseClass,
208  * respectively.
209  * If <i>obj</i> is a Fixnum or a Symbol, it raises a TypeError.
210  *
211  * Object.new.singleton_class #=> #<Class:#<Object:0xb7ce1e24>>
212  * String.singleton_class #=> #<Class:String>
213  * nil.singleton_class #=> NilClass
214  */
215 
216 static VALUE
218 {
219  return rb_singleton_class(obj);
220 }
221 
222 static void
224 {
225  if (OBJ_FROZEN(dest)) {
226  rb_raise(rb_eTypeError, "[bug] frozen object (%s) allocated", rb_obj_classname(dest));
227  }
228  RBASIC(dest)->flags &= ~(T_MASK|FL_EXIVAR);
229  RBASIC(dest)->flags |= RBASIC(obj)->flags & (T_MASK|FL_EXIVAR|FL_TAINT|FL_UNTRUSTED);
230  rb_copy_generic_ivar(dest, obj);
231  rb_gc_copy_finalizer(dest, obj);
232  switch (TYPE(obj)) {
233  case T_OBJECT:
234  if (!(RBASIC(dest)->flags & ROBJECT_EMBED) && ROBJECT_IVPTR(dest)) {
235  xfree(ROBJECT_IVPTR(dest));
236  ROBJECT(dest)->as.heap.ivptr = 0;
237  ROBJECT(dest)->as.heap.numiv = 0;
238  ROBJECT(dest)->as.heap.iv_index_tbl = 0;
239  }
240  if (RBASIC(obj)->flags & ROBJECT_EMBED) {
241  MEMCPY(ROBJECT(dest)->as.ary, ROBJECT(obj)->as.ary, VALUE, ROBJECT_EMBED_LEN_MAX);
242  RBASIC(dest)->flags |= ROBJECT_EMBED;
243  }
244  else {
245  long len = ROBJECT(obj)->as.heap.numiv;
246  VALUE *ptr = ALLOC_N(VALUE, len);
247  MEMCPY(ptr, ROBJECT(obj)->as.heap.ivptr, VALUE, len);
248  ROBJECT(dest)->as.heap.ivptr = ptr;
249  ROBJECT(dest)->as.heap.numiv = len;
250  ROBJECT(dest)->as.heap.iv_index_tbl = ROBJECT(obj)->as.heap.iv_index_tbl;
251  RBASIC(dest)->flags &= ~ROBJECT_EMBED;
252  }
253  break;
254  case T_CLASS:
255  case T_MODULE:
256  if (RCLASS_IV_TBL(dest)) {
258  RCLASS_IV_TBL(dest) = 0;
259  }
260  if (RCLASS_CONST_TBL(dest)) {
262  RCLASS_CONST_TBL(dest) = 0;
263  }
264  if (RCLASS_IV_TBL(obj)) {
265  RCLASS_IV_TBL(dest) = st_copy(RCLASS_IV_TBL(obj));
266  }
267  break;
268  }
269 }
270 
271 /*
272  * call-seq:
273  * obj.clone -> an_object
274  *
275  * Produces a shallow copy of <i>obj</i>---the instance variables of
276  * <i>obj</i> are copied, but not the objects they reference. Copies
277  * the frozen and tainted state of <i>obj</i>. See also the discussion
278  * under <code>Object#dup</code>.
279  *
280  * class Klass
281  * attr_accessor :str
282  * end
283  * s1 = Klass.new #=> #<Klass:0x401b3a38>
284  * s1.str = "Hello" #=> "Hello"
285  * s2 = s1.clone #=> #<Klass:0x401b3998 @str="Hello">
286  * s2.str[1,4] = "i" #=> "i"
287  * s1.inspect #=> "#<Klass:0x401b3a38 @str=\"Hi\">"
288  * s2.inspect #=> "#<Klass:0x401b3998 @str=\"Hi\">"
289  *
290  * This method may have class-specific behavior. If so, that
291  * behavior will be documented under the #+initialize_copy+ method of
292  * the class.
293  */
294 
295 VALUE
297 {
298  VALUE clone;
299  VALUE singleton;
300 
301  if (rb_special_const_p(obj)) {
302  rb_raise(rb_eTypeError, "can't clone %s", rb_obj_classname(obj));
303  }
304  clone = rb_obj_alloc(rb_obj_class(obj));
305  singleton = rb_singleton_class_clone_and_attach(obj, clone);
306  RBASIC(clone)->klass = singleton;
307  if (FL_TEST(singleton, FL_SINGLETON)) {
308  rb_singleton_class_attached(singleton, clone);
309  }
310  RBASIC(clone)->flags &= (FL_TAINT|FL_UNTRUSTED);
311  RBASIC(clone)->flags |= RBASIC(obj)->flags & ~(FL_FREEZE|FL_FINALIZE);
312  init_copy(clone, obj);
313  rb_funcall(clone, id_init_clone, 1, obj);
314  RBASIC(clone)->flags |= RBASIC(obj)->flags & FL_FREEZE;
315 
316  return clone;
317 }
318 
319 /*
320  * call-seq:
321  * obj.dup -> an_object
322  *
323  * Produces a shallow copy of <i>obj</i>---the instance variables of
324  * <i>obj</i> are copied, but not the objects they reference.
325  * <code>dup</code> copies the tainted state of <i>obj</i>. See also
326  * the discussion under <code>Object#clone</code>. In general,
327  * <code>clone</code> and <code>dup</code> may have different semantics
328  * in descendant classes. While <code>clone</code> is used to duplicate
329  * an object, including its internal state, <code>dup</code> typically
330  * uses the class of the descendant object to create the new instance.
331  *
332  * This method may have class-specific behavior. If so, that
333  * behavior will be documented under the #+initialize_copy+ method of
334  * the class.
335  */
336 
337 VALUE
339 {
340  VALUE dup;
341 
342  if (rb_special_const_p(obj)) {
343  rb_raise(rb_eTypeError, "can't dup %s", rb_obj_classname(obj));
344  }
345  dup = rb_obj_alloc(rb_obj_class(obj));
346  init_copy(dup, obj);
347  rb_funcall(dup, id_init_dup, 1, obj);
348 
349  return dup;
350 }
351 
352 /* :nodoc: */
353 VALUE
355 {
356  if (obj == orig) return obj;
357  rb_check_frozen(obj);
358  rb_check_trusted(obj);
359  if (TYPE(obj) != TYPE(orig) || rb_obj_class(obj) != rb_obj_class(orig)) {
360  rb_raise(rb_eTypeError, "initialize_copy should take same class object");
361  }
362  return obj;
363 }
364 
365 /* :nodoc: */
366 VALUE
368 {
369  rb_funcall(obj, id_init_copy, 1, orig);
370  return obj;
371 }
372 
373 /*
374  * call-seq:
375  * obj.to_s -> string
376  *
377  * Returns a string representing <i>obj</i>. The default
378  * <code>to_s</code> prints the object's class and an encoding of the
379  * object id. As a special case, the top-level object that is the
380  * initial execution context of Ruby programs returns ``main.''
381  */
382 
383 VALUE
385 {
386  VALUE str;
387  VALUE cname = rb_class_name(CLASS_OF(obj));
388 
389  str = rb_sprintf("#<%"PRIsVALUE":%p>", cname, (void*)obj);
390  OBJ_INFECT(str, obj);
391 
392  return str;
393 }
394 
395 /*
396  * If the default external encoding is ASCII compatible, the encoding of
397  * inspected result must be compatible with it.
398  * If the default external encoding is ASCII incomapatible,
399  * the result must be ASCII only.
400  */
401 VALUE
403 {
406  if (!rb_enc_asciicompat(ext)) {
407  if (!rb_enc_str_asciionly_p(str))
408  rb_raise(rb_eEncCompatError, "inspected result must be ASCII only if default external encoding is ASCII incompatible");
409  return str;
410  }
411  if (rb_enc_get(str) != ext && !rb_enc_str_asciionly_p(str))
412  rb_raise(rb_eEncCompatError, "inspected result must be ASCII only or use the same encoding with default external");
413  return str;
414 }
415 
416 static int
418 {
419  ID id = (ID)k;
420  VALUE value = (VALUE)v;
421  VALUE str = (VALUE)a;
422  VALUE str2;
423  const char *ivname;
424 
425  /* need not to show internal data */
426  if (CLASS_OF(value) == 0) return ST_CONTINUE;
427  if (!rb_is_instance_id(id)) return ST_CONTINUE;
428  if (RSTRING_PTR(str)[0] == '-') { /* first element */
429  RSTRING_PTR(str)[0] = '#';
430  rb_str_cat2(str, " ");
431  }
432  else {
433  rb_str_cat2(str, ", ");
434  }
435  ivname = rb_id2name(id);
436  rb_str_cat2(str, ivname);
437  rb_str_cat2(str, "=");
438  str2 = rb_inspect(value);
439  rb_str_append(str, str2);
440  OBJ_INFECT(str, str2);
441 
442  return ST_CONTINUE;
443 }
444 
445 static VALUE
447 {
448  if (recur) {
449  rb_str_cat2(str, " ...");
450  }
451  else {
452  rb_ivar_foreach(obj, inspect_i, str);
453  }
454  rb_str_cat2(str, ">");
455  RSTRING_PTR(str)[0] = '#';
456  OBJ_INFECT(str, obj);
457 
458  return str;
459 }
460 
461 /*
462  * call-seq:
463  * obj.inspect -> string
464  *
465  * Returns a string containing a human-readable representation of <i>obj</i>.
466  * By default, show the class name and the list of the instance variables and
467  * their values (by calling #inspect on each of them).
468  * User defined classes should override this method to make better
469  * representation of <i>obj</i>. When overriding this method, it should
470  * return a string whose encoding is compatible with the default external
471  * encoding.
472  *
473  * [ 1, 2, 3..4, 'five' ].inspect #=> "[1, 2, 3..4, \"five\"]"
474  * Time.new.inspect #=> "2008-03-08 19:43:39 +0900"
475  *
476  * class Foo
477  * end
478  * Foo.new.inspect #=> "#<Foo:0x0300c868>"
479  *
480  * class Bar
481  * def initialize
482  * @bar = 1
483  * end
484  * end
485  * Bar.new.inspect #=> "#<Bar:0x0300c868 @bar=1>"
486  *
487  * class Baz
488  * def to_s
489  * "baz"
490  * end
491  * end
492  * Baz.new.inspect #=> "#<Baz:0x0300c868>"
493  */
494 
495 static VALUE
497 {
498  if (rb_ivar_count(obj) > 0) {
499  VALUE str;
500  VALUE c = rb_class_name(CLASS_OF(obj));
501 
502  str = rb_sprintf("-<%"PRIsVALUE":%p", c, (void*)obj);
503  return rb_exec_recursive(inspect_obj, obj, str);
504  }
505  else {
506  return rb_any_to_s(obj);
507  }
508 }
509 
510 static VALUE
512 {
513  if (SPECIAL_CONST_P(c)) goto not_class;
514  switch (BUILTIN_TYPE(c)) {
515  case T_MODULE:
516  case T_CLASS:
517  case T_ICLASS:
518  break;
519 
520  default:
521  not_class:
522  rb_raise(rb_eTypeError, "class or module required");
523  }
524  return c;
525 }
526 
527 /*
528  * call-seq:
529  * obj.instance_of?(class) -> true or false
530  *
531  * Returns <code>true</code> if <i>obj</i> is an instance of the given
532  * class. See also <code>Object#kind_of?</code>.
533  *
534  * class A; end
535  * class B < A; end
536  * class C < B; end
537  *
538  * b = B.new
539  * b.instance_of? A #=> false
540  * b.instance_of? B #=> true
541  * b.instance_of? C #=> false
542  */
543 
544 VALUE
546 {
548  if (rb_obj_class(obj) == c) return Qtrue;
549  return Qfalse;
550 }
551 
552 
553 /*
554  * call-seq:
555  * obj.is_a?(class) -> true or false
556  * obj.kind_of?(class) -> true or false
557  *
558  * Returns <code>true</code> if <i>class</i> is the class of
559  * <i>obj</i>, or if <i>class</i> is one of the superclasses of
560  * <i>obj</i> or modules included in <i>obj</i>.
561  *
562  * module M; end
563  * class A
564  * include M
565  * end
566  * class B < A; end
567  * class C < B; end
568  *
569  * b = B.new
570  * b.is_a? A #=> true
571  * b.is_a? B #=> true
572  * b.is_a? C #=> false
573  * b.is_a? M #=> true
574  *
575  * b.kind_of? A #=> true
576  * b.kind_of? B #=> true
577  * b.kind_of? C #=> false
578  * b.kind_of? M #=> true
579  */
580 
581 VALUE
583 {
584  VALUE cl = CLASS_OF(obj);
585 
587  c = RCLASS_ORIGIN(c);
588  while (cl) {
589  if (cl == c || RCLASS_M_TBL(cl) == RCLASS_M_TBL(c))
590  return Qtrue;
591  cl = RCLASS_SUPER(cl);
592  }
593  return Qfalse;
594 }
595 
596 
597 /*
598  * call-seq:
599  * obj.tap{|x|...} -> obj
600  *
601  * Yields <code>x</code> to the block, and then returns <code>x</code>.
602  * The primary purpose of this method is to "tap into" a method chain,
603  * in order to perform operations on intermediate results within the chain.
604  *
605  * (1..10) .tap {|x| puts "original: #{x.inspect}"}
606  * .to_a .tap {|x| puts "array: #{x.inspect}"}
607  * .select {|x| x%2==0} .tap {|x| puts "evens: #{x.inspect}"}
608  * .map { |x| x*x } .tap {|x| puts "squares: #{x.inspect}"}
609  *
610  */
611 
612 VALUE
614 {
615  rb_yield(obj);
616  return obj;
617 }
618 
619 
620 /*
621  * Document-method: inherited
622  *
623  * call-seq:
624  * inherited(subclass)
625  *
626  * Callback invoked whenever a subclass of the current class is created.
627  *
628  * Example:
629  *
630  * class Foo
631  * def self.inherited(subclass)
632  * puts "New subclass: #{subclass}"
633  * end
634  * end
635  *
636  * class Bar < Foo
637  * end
638  *
639  * class Baz < Bar
640  * end
641  *
642  * produces:
643  *
644  * New subclass: Bar
645  * New subclass: Baz
646  */
647 
648 /* Document-method: method_added
649  *
650  * call-seq:
651  * method_added(method_name)
652  *
653  * Invoked as a callback whenever an instance method is added to the
654  * receiver.
655  *
656  * module Chatty
657  * def self.method_added(method_name)
658  * puts "Adding #{method_name.inspect}"
659  * end
660  * def self.some_class_method() end
661  * def some_instance_method() end
662  * end
663  *
664  * produces:
665  *
666  * Adding :some_instance_method
667  *
668  */
669 
670 /* Document-method: method_removed
671  *
672  * call-seq:
673  * method_removed(method_name)
674  *
675  * Invoked as a callback whenever an instance method is removed from the
676  * receiver.
677  *
678  * module Chatty
679  * def self.method_removed(method_name)
680  * puts "Removing #{method_name.inspect}"
681  * end
682  * def self.some_class_method() end
683  * def some_instance_method() end
684  * class << self
685  * remove_method :some_class_method
686  * end
687  * remove_method :some_instance_method
688  * end
689  *
690  * produces:
691  *
692  * Removing :some_instance_method
693  *
694  */
695 
696 /*
697  * Document-method: singleton_method_added
698  *
699  * call-seq:
700  * singleton_method_added(symbol)
701  *
702  * Invoked as a callback whenever a singleton method is added to the
703  * receiver.
704  *
705  * module Chatty
706  * def Chatty.singleton_method_added(id)
707  * puts "Adding #{id.id2name}"
708  * end
709  * def self.one() end
710  * def two() end
711  * def Chatty.three() end
712  * end
713  *
714  * <em>produces:</em>
715  *
716  * Adding singleton_method_added
717  * Adding one
718  * Adding three
719  *
720  */
721 
722 /*
723  * Document-method: singleton_method_removed
724  *
725  * call-seq:
726  * singleton_method_removed(symbol)
727  *
728  * Invoked as a callback whenever a singleton method is removed from
729  * the receiver.
730  *
731  * module Chatty
732  * def Chatty.singleton_method_removed(id)
733  * puts "Removing #{id.id2name}"
734  * end
735  * def self.one() end
736  * def two() end
737  * def Chatty.three() end
738  * class << self
739  * remove_method :three
740  * remove_method :one
741  * end
742  * end
743  *
744  * <em>produces:</em>
745  *
746  * Removing three
747  * Removing one
748  */
749 
750 /*
751  * Document-method: singleton_method_undefined
752  *
753  * call-seq:
754  * singleton_method_undefined(symbol)
755  *
756  * Invoked as a callback whenever a singleton method is undefined in
757  * the receiver.
758  *
759  * module Chatty
760  * def Chatty.singleton_method_undefined(id)
761  * puts "Undefining #{id.id2name}"
762  * end
763  * def Chatty.one() end
764  * class << self
765  * undef_method(:one)
766  * end
767  * end
768  *
769  * <em>produces:</em>
770  *
771  * Undefining one
772  */
773 
774 
775 /*
776  * Document-method: included
777  *
778  * call-seq:
779  * included( othermod )
780  *
781  * Callback invoked whenever the receiver is included in another
782  * module or class. This should be used in preference to
783  * <tt>Module.append_features</tt> if your code wants to perform some
784  * action when a module is included in another.
785  *
786  * module A
787  * def A.included(mod)
788  * puts "#{self} included in #{mod}"
789  * end
790  * end
791  * module Enumerable
792  * include A
793  * end
794  * # => prints "A included in Enumerable"
795  */
796 
797 /*
798  * Document-method: prepended
799  *
800  * call-seq:
801  * prepended( othermod )
802  *
803  * The equivalent of <tt>included</tt>, but for prepended modules.
804  *
805  * module A
806  * def self.prepended(mod)
807  * puts "#{self} prepended to #{mod}"
808  * end
809  * end
810  * module Enumerable
811  * prepend A
812  * end
813  * # => prints "A prepended to Enumerable"
814  */
815 
816 /*
817  * Document-method: initialize
818  *
819  * call-seq:
820  * BasicObject.new
821  *
822  * Returns a new BasicObject.
823  */
824 
825 /*
826  * Not documented
827  */
828 
829 static VALUE
831 {
832  return Qnil;
833 }
834 
835 /*
836  * call-seq:
837  * obj.tainted? -> true or false
838  *
839  * Returns <code>true</code> if the object is tainted.
840  */
841 
842 VALUE
844 {
845  if (OBJ_TAINTED(obj))
846  return Qtrue;
847  return Qfalse;
848 }
849 
850 /*
851  * call-seq:
852  * obj.taint -> obj
853  *
854  * Marks <i>obj</i> as tainted---if the <code>$SAFE</code> level is
855  * set appropriately, many method calls which might alter the running
856  * programs environment will refuse to accept tainted strings.
857  */
858 
859 VALUE
861 {
862  rb_secure(4);
863  if (!OBJ_TAINTED(obj)) {
864  rb_check_frozen(obj);
865  OBJ_TAINT(obj);
866  }
867  return obj;
868 }
869 
870 
871 /*
872  * call-seq:
873  * obj.untaint -> obj
874  *
875  * Removes the taint from <i>obj</i>.
876  */
877 
878 VALUE
880 {
881  rb_secure(3);
882  if (OBJ_TAINTED(obj)) {
883  rb_check_frozen(obj);
884  FL_UNSET(obj, FL_TAINT);
885  }
886  return obj;
887 }
888 
889 /*
890  * call-seq:
891  * obj.untrusted? -> true or false
892  *
893  * Returns <code>true</code> if the object is untrusted.
894  */
895 
896 VALUE
898 {
899  if (OBJ_UNTRUSTED(obj))
900  return Qtrue;
901  return Qfalse;
902 }
903 
904 /*
905  * call-seq:
906  * obj.untrust -> obj
907  *
908  * Marks <i>obj</i> as untrusted.
909  */
910 
911 VALUE
913 {
914  rb_secure(4);
915  if (!OBJ_UNTRUSTED(obj)) {
916  rb_check_frozen(obj);
917  OBJ_UNTRUST(obj);
918  }
919  return obj;
920 }
921 
922 
923 /*
924  * call-seq:
925  * obj.trust -> obj
926  *
927  * Removes the untrusted mark from <i>obj</i>.
928  */
929 
930 VALUE
932 {
933  rb_secure(3);
934  if (OBJ_UNTRUSTED(obj)) {
935  rb_check_frozen(obj);
936  FL_UNSET(obj, FL_UNTRUSTED);
937  }
938  return obj;
939 }
940 
941 void
943 {
944  OBJ_INFECT(obj1, obj2);
945 }
946 
948 
949 /*
950  * call-seq:
951  * obj.freeze -> obj
952  *
953  * Prevents further modifications to <i>obj</i>. A
954  * <code>RuntimeError</code> will be raised if modification is attempted.
955  * There is no way to unfreeze a frozen object. See also
956  * <code>Object#frozen?</code>.
957  *
958  * This method returns self.
959  *
960  * a = [ "a", "b", "c" ]
961  * a.freeze
962  * a << "z"
963  *
964  * <em>produces:</em>
965  *
966  * prog.rb:3:in `<<': can't modify frozen array (RuntimeError)
967  * from prog.rb:3
968  */
969 
970 VALUE
972 {
973  if (!OBJ_FROZEN(obj)) {
974  if (rb_safe_level() >= 4 && !OBJ_UNTRUSTED(obj)) {
975  rb_raise(rb_eSecurityError, "Insecure: can't freeze object");
976  }
977  OBJ_FREEZE(obj);
978  if (SPECIAL_CONST_P(obj)) {
979  if (!immediate_frozen_tbl) {
980  immediate_frozen_tbl = st_init_numtable();
981  }
982  st_insert(immediate_frozen_tbl, obj, (st_data_t)Qtrue);
983  }
984  }
985  return obj;
986 }
987 
988 /*
989  * call-seq:
990  * obj.frozen? -> true or false
991  *
992  * Returns the freeze status of <i>obj</i>.
993  *
994  * a = [ "a", "b", "c" ]
995  * a.freeze #=> ["a", "b", "c"]
996  * a.frozen? #=> true
997  */
998 
999 VALUE
1001 {
1002  if (OBJ_FROZEN(obj)) return Qtrue;
1003  if (SPECIAL_CONST_P(obj)) {
1004  if (!immediate_frozen_tbl) return Qfalse;
1005  if (st_lookup(immediate_frozen_tbl, obj, 0)) return Qtrue;
1006  }
1007  return Qfalse;
1008 }
1009 
1010 
1011 /*
1012  * Document-class: NilClass
1013  *
1014  * The class of the singleton object <code>nil</code>.
1015  */
1016 
1017 /*
1018  * call-seq:
1019  * nil.to_i -> 0
1020  *
1021  * Always returns zero.
1022  *
1023  * nil.to_i #=> 0
1024  */
1025 
1026 
1027 static VALUE
1029 {
1030  return INT2FIX(0);
1031 }
1032 
1033 /*
1034  * call-seq:
1035  * nil.to_f -> 0.0
1036  *
1037  * Always returns zero.
1038  *
1039  * nil.to_f #=> 0.0
1040  */
1041 
1042 static VALUE
1044 {
1045  return DBL2NUM(0.0);
1046 }
1047 
1048 /*
1049  * call-seq:
1050  * nil.to_s -> ""
1051  *
1052  * Always returns the empty string.
1053  */
1054 
1055 static VALUE
1057 {
1058  return rb_usascii_str_new(0, 0);
1059 }
1060 
1061 /*
1062  * Document-method: to_a
1063  *
1064  * call-seq:
1065  * nil.to_a -> []
1066  *
1067  * Always returns an empty array.
1068  *
1069  * nil.to_a #=> []
1070  */
1071 
1072 static VALUE
1074 {
1075  return rb_ary_new2(0);
1076 }
1077 
1078 /*
1079  * Document-method: to_h
1080  *
1081  * call-seq:
1082  * nil.to_h -> {}
1083  *
1084  * Always returns an empty hash.
1085  *
1086  * nil.to_h #=> {}
1087  */
1088 
1089 static VALUE
1091 {
1092  return rb_hash_new();
1093 }
1094 
1095 /*
1096  * call-seq:
1097  * nil.inspect -> "nil"
1098  *
1099  * Always returns the string "nil".
1100  */
1101 
1102 static VALUE
1104 {
1105  return rb_usascii_str_new2("nil");
1106 }
1107 
1108 /***********************************************************************
1109  * Document-class: TrueClass
1110  *
1111  * The global value <code>true</code> is the only instance of class
1112  * <code>TrueClass</code> and represents a logically true value in
1113  * boolean expressions. The class provides operators allowing
1114  * <code>true</code> to be used in logical expressions.
1115  */
1116 
1117 
1118 /*
1119  * call-seq:
1120  * true.to_s -> "true"
1121  *
1122  * The string representation of <code>true</code> is "true".
1123  */
1124 
1125 static VALUE
1127 {
1128  return rb_usascii_str_new2("true");
1129 }
1130 
1131 
1132 /*
1133  * call-seq:
1134  * true & obj -> true or false
1135  *
1136  * And---Returns <code>false</code> if <i>obj</i> is
1137  * <code>nil</code> or <code>false</code>, <code>true</code> otherwise.
1138  */
1139 
1140 static VALUE
1142 {
1143  return RTEST(obj2)?Qtrue:Qfalse;
1144 }
1145 
1146 /*
1147  * call-seq:
1148  * true | obj -> true
1149  *
1150  * Or---Returns <code>true</code>. As <i>anObject</i> is an argument to
1151  * a method call, it is always evaluated; there is no short-circuit
1152  * evaluation in this case.
1153  *
1154  * true | puts("or")
1155  * true || puts("logical or")
1156  *
1157  * <em>produces:</em>
1158  *
1159  * or
1160  */
1161 
1162 static VALUE
1164 {
1165  return Qtrue;
1166 }
1167 
1168 
1169 /*
1170  * call-seq:
1171  * true ^ obj -> !obj
1172  *
1173  * Exclusive Or---Returns <code>true</code> if <i>obj</i> is
1174  * <code>nil</code> or <code>false</code>, <code>false</code>
1175  * otherwise.
1176  */
1177 
1178 static VALUE
1180 {
1181  return RTEST(obj2)?Qfalse:Qtrue;
1182 }
1183 
1184 
1185 /*
1186  * Document-class: FalseClass
1187  *
1188  * The global value <code>false</code> is the only instance of class
1189  * <code>FalseClass</code> and represents a logically false value in
1190  * boolean expressions. The class provides operators allowing
1191  * <code>false</code> to participate correctly in logical expressions.
1192  *
1193  */
1194 
1195 /*
1196  * call-seq:
1197  * false.to_s -> "false"
1198  *
1199  * 'nuf said...
1200  */
1201 
1202 static VALUE
1204 {
1205  return rb_usascii_str_new2("false");
1206 }
1207 
1208 /*
1209  * call-seq:
1210  * false & obj -> false
1211  * nil & obj -> false
1212  *
1213  * And---Returns <code>false</code>. <i>obj</i> is always
1214  * evaluated as it is the argument to a method call---there is no
1215  * short-circuit evaluation in this case.
1216  */
1217 
1218 static VALUE
1220 {
1221  return Qfalse;
1222 }
1223 
1224 
1225 /*
1226  * call-seq:
1227  * false | obj -> true or false
1228  * nil | obj -> true or false
1229  *
1230  * Or---Returns <code>false</code> if <i>obj</i> is
1231  * <code>nil</code> or <code>false</code>; <code>true</code> otherwise.
1232  */
1233 
1234 static VALUE
1236 {
1237  return RTEST(obj2)?Qtrue:Qfalse;
1238 }
1239 
1240 
1241 
1242 /*
1243  * call-seq:
1244  * false ^ obj -> true or false
1245  * nil ^ obj -> true or false
1246  *
1247  * Exclusive Or---If <i>obj</i> is <code>nil</code> or
1248  * <code>false</code>, returns <code>false</code>; otherwise, returns
1249  * <code>true</code>.
1250  *
1251  */
1252 
1253 static VALUE
1255 {
1256  return RTEST(obj2)?Qtrue:Qfalse;
1257 }
1258 
1259 /*
1260  * call_seq:
1261  * nil.nil? -> true
1262  *
1263  * Only the object <i>nil</i> responds <code>true</code> to <code>nil?</code>.
1264  */
1265 
1266 static VALUE
1268 {
1269  return Qtrue;
1270 }
1271 
1272 /*
1273  * call_seq:
1274  * nil.nil? -> true
1275  * <anything_else>.nil? -> false
1276  *
1277  * Only the object <i>nil</i> responds <code>true</code> to <code>nil?</code>.
1278  */
1279 
1280 
1281 static VALUE
1283 {
1284  return Qfalse;
1285 }
1286 
1287 
1288 /*
1289  * call-seq:
1290  * obj =~ other -> nil
1291  *
1292  * Pattern Match---Overridden by descendants (notably
1293  * <code>Regexp</code> and <code>String</code>) to provide meaningful
1294  * pattern-match semantics.
1295  */
1296 
1297 static VALUE
1299 {
1300  return Qnil;
1301 }
1302 
1303 /*
1304  * call-seq:
1305  * obj !~ other -> true or false
1306  *
1307  * Returns true if two objects do not match (using the <i>=~</i>
1308  * method), otherwise false.
1309  */
1310 
1311 static VALUE
1313 {
1314  VALUE result = rb_funcall(obj1, id_match, 1, obj2);
1315  return RTEST(result) ? Qfalse : Qtrue;
1316 }
1317 
1318 
1319 /*
1320  * call-seq:
1321  * obj <=> other -> 0 or nil
1322  *
1323  * Returns 0 if obj === other, otherwise nil.
1324  *
1325  * The <=> is used by various methods to compare objects, for example
1326  * Enumerable#sort, Enumerable#max etc.
1327  *
1328  * Your implementation of <=> should return one of the following values: -1, 0,
1329  * 1 or nil. -1 means self is smaller than other. 0 means self is equal to other.
1330  * 1 means self is bigger than other. Nil means the two values could not be
1331  * compared.
1332  *
1333  * When you defined <=>, you can include Comparable to gain the methods <=, <,
1334  * ==, >=, > and between?.
1335  */
1336 static VALUE
1338 {
1339  if (obj1 == obj2 || rb_equal(obj1, obj2))
1340  return INT2FIX(0);
1341  return Qnil;
1342 }
1343 
1344 /***********************************************************************
1345  *
1346  * Document-class: Module
1347  *
1348  * A <code>Module</code> is a collection of methods and constants. The
1349  * methods in a module may be instance methods or module methods.
1350  * Instance methods appear as methods in a class when the module is
1351  * included, module methods do not. Conversely, module methods may be
1352  * called without creating an encapsulating object, while instance
1353  * methods may not. (See <code>Module#module_function</code>)
1354  *
1355  * In the descriptions that follow, the parameter <i>sym</i> refers
1356  * to a symbol, which is either a quoted string or a
1357  * <code>Symbol</code> (such as <code>:name</code>).
1358  *
1359  * module Mod
1360  * include Math
1361  * CONST = 1
1362  * def meth
1363  * # ...
1364  * end
1365  * end
1366  * Mod.class #=> Module
1367  * Mod.constants #=> [:CONST, :PI, :E]
1368  * Mod.instance_methods #=> [:meth]
1369  *
1370  */
1371 
1372 /*
1373  * call-seq:
1374  * mod.to_s -> string
1375  *
1376  * Return a string representing this module or class. For basic
1377  * classes and modules, this is the name. For singletons, we
1378  * show information on the thing we're attached to as well.
1379  */
1380 
1381 static VALUE
1383 {
1384  ID id_defined_at;
1385  VALUE refined_class, defined_at;
1386 
1387  if (FL_TEST(klass, FL_SINGLETON)) {
1388  VALUE s = rb_usascii_str_new2("#<Class:");
1389  VALUE v = rb_iv_get(klass, "__attached__");
1390 
1391  if (CLASS_OR_MODULE_P(v)) {
1392  rb_str_append(s, rb_inspect(v));
1393  }
1394  else {
1395  rb_str_append(s, rb_any_to_s(v));
1396  }
1397  rb_str_cat2(s, ">");
1398 
1399  return s;
1400  }
1401  refined_class = rb_refinement_module_get_refined_class(klass);
1402  if (!NIL_P(refined_class)) {
1403  VALUE s = rb_usascii_str_new2("#<refinement:");
1404 
1405  rb_str_concat(s, rb_inspect(refined_class));
1406  rb_str_cat2(s, "@");
1407  CONST_ID(id_defined_at, "__defined_at__");
1408  defined_at = rb_attr_get(klass, id_defined_at);
1409  rb_str_concat(s, rb_inspect(defined_at));
1410  rb_str_cat2(s, ">");
1411  return s;
1412  }
1413  return rb_str_dup(rb_class_name(klass));
1414 }
1415 
1416 /*
1417  * call-seq:
1418  * mod.freeze -> mod
1419  *
1420  * Prevents further modifications to <i>mod</i>.
1421  *
1422  * This method returns self.
1423  */
1424 
1425 static VALUE
1427 {
1428  rb_class_name(mod);
1429  return rb_obj_freeze(mod);
1430 }
1431 
1432 /*
1433  * call-seq:
1434  * mod === obj -> true or false
1435  *
1436  * Case Equality---Returns <code>true</code> if <i>anObject</i> is an
1437  * instance of <i>mod</i> or one of <i>mod</i>'s descendants. Of
1438  * limited use for modules, but can be used in <code>case</code>
1439  * statements to classify objects by class.
1440  */
1441 
1442 static VALUE
1444 {
1445  return rb_obj_is_kind_of(arg, mod);
1446 }
1447 
1448 /*
1449  * call-seq:
1450  * mod <= other -> true, false, or nil
1451  *
1452  * Returns true if <i>mod</i> is a subclass of <i>other</i> or
1453  * is the same as <i>other</i>. Returns
1454  * <code>nil</code> if there's no relationship between the two.
1455  * (Think of the relationship in terms of the class definition:
1456  * "class A<B" implies "A<B").
1457  *
1458  */
1459 
1460 VALUE
1462 {
1463  VALUE start = mod;
1464 
1465  if (mod == arg) return Qtrue;
1466  if (!CLASS_OR_MODULE_P(arg)) {
1467  rb_raise(rb_eTypeError, "compared with non class/module");
1468  }
1469  arg = RCLASS_ORIGIN(arg);
1470  while (mod) {
1471  if (RCLASS_M_TBL(mod) == RCLASS_M_TBL(arg))
1472  return Qtrue;
1473  mod = RCLASS_SUPER(mod);
1474  }
1475  /* not mod < arg; check if mod > arg */
1476  while (arg) {
1477  if (RCLASS_M_TBL(arg) == RCLASS_M_TBL(start))
1478  return Qfalse;
1479  arg = RCLASS_SUPER(arg);
1480  }
1481  return Qnil;
1482 }
1483 
1484 /*
1485  * call-seq:
1486  * mod < other -> true, false, or nil
1487  *
1488  * Returns true if <i>mod</i> is a subclass of <i>other</i>. Returns
1489  * <code>nil</code> if there's no relationship between the two.
1490  * (Think of the relationship in terms of the class definition:
1491  * "class A<B" implies "A<B").
1492  *
1493  */
1494 
1495 static VALUE
1497 {
1498  if (mod == arg) return Qfalse;
1499  return rb_class_inherited_p(mod, arg);
1500 }
1501 
1502 
1503 /*
1504  * call-seq:
1505  * mod >= other -> true, false, or nil
1506  *
1507  * Returns true if <i>mod</i> is an ancestor of <i>other</i>, or the
1508  * two modules are the same. Returns
1509  * <code>nil</code> if there's no relationship between the two.
1510  * (Think of the relationship in terms of the class definition:
1511  * "class A<B" implies "B>A").
1512  *
1513  */
1514 
1515 static VALUE
1517 {
1518  if (!CLASS_OR_MODULE_P(arg)) {
1519  rb_raise(rb_eTypeError, "compared with non class/module");
1520  }
1521 
1522  return rb_class_inherited_p(arg, mod);
1523 }
1524 
1525 /*
1526  * call-seq:
1527  * mod > other -> true, false, or nil
1528  *
1529  * Returns true if <i>mod</i> is an ancestor of <i>other</i>. Returns
1530  * <code>nil</code> if there's no relationship between the two.
1531  * (Think of the relationship in terms of the class definition:
1532  * "class A<B" implies "B>A").
1533  *
1534  */
1535 
1536 static VALUE
1538 {
1539  if (mod == arg) return Qfalse;
1540  return rb_mod_ge(mod, arg);
1541 }
1542 
1543 /*
1544  * call-seq:
1545  * module <=> other_module -> -1, 0, +1, or nil
1546  *
1547  * Comparison---Returns -1, 0, +1 or nil depending on whether +module+
1548  * includes +other_module+, they are the same, or if +module+ is included by
1549  * +other_module+. This is the basis for the tests in Comparable.
1550  *
1551  * Returns +nil+ if +module+ has no relationship with +other_module+, if
1552  * +other_module+ is not a module, or if the two values are incomparable.
1553  */
1554 
1555 static VALUE
1557 {
1558  VALUE cmp;
1559 
1560  if (mod == arg) return INT2FIX(0);
1561  if (!CLASS_OR_MODULE_P(arg)) {
1562  return Qnil;
1563  }
1564 
1565  cmp = rb_class_inherited_p(mod, arg);
1566  if (NIL_P(cmp)) return Qnil;
1567  if (cmp) {
1568  return INT2FIX(-1);
1569  }
1570  return INT2FIX(1);
1571 }
1572 
1573 static VALUE
1575 {
1576  VALUE mod = rb_module_new();
1577 
1578  RBASIC(mod)->klass = klass;
1579  return mod;
1580 }
1581 
1582 static VALUE
1584 {
1585  return rb_class_boot(0);
1586 }
1587 
1588 /*
1589  * call-seq:
1590  * Module.new -> mod
1591  * Module.new {|mod| block } -> mod
1592  *
1593  * Creates a new anonymous module. If a block is given, it is passed
1594  * the module object, and the block is evaluated in the context of this
1595  * module using <code>module_eval</code>.
1596  *
1597  * fred = Module.new do
1598  * def meth1
1599  * "hello"
1600  * end
1601  * def meth2
1602  * "bye"
1603  * end
1604  * end
1605  * a = "my string"
1606  * a.extend(fred) #=> "my string"
1607  * a.meth1 #=> "hello"
1608  * a.meth2 #=> "bye"
1609  *
1610  * Assign the module to a constant (name starting uppercase) if you
1611  * want to treat it like a regular module.
1612  */
1613 
1614 static VALUE
1616 {
1617  if (rb_block_given_p()) {
1618  rb_mod_module_exec(1, &module, module);
1619  }
1620  return Qnil;
1621 }
1622 
1623 /*
1624  * call-seq:
1625  * Class.new(super_class=Object) -> a_class
1626  * Class.new(super_class=Object) { |mod| ... } -> a_class
1627  *
1628  * Creates a new anonymous (unnamed) class with the given superclass
1629  * (or <code>Object</code> if no parameter is given). You can give a
1630  * class a name by assigning the class object to a constant.
1631  *
1632  * If a block is given, it is passed the class object, and the block
1633  * is evaluated in the context of this class using
1634  * <code>class_eval</code>.
1635  *
1636  * fred = Class.new do
1637  * def meth1
1638  * "hello"
1639  * end
1640  * def meth2
1641  * "bye"
1642  * end
1643  * end
1644  *
1645  * a = fred.new #=> #<#<Class:0x100381890>:0x100376b98>
1646  * a.meth1 #=> "hello"
1647  * a.meth2 #=> "bye"
1648  *
1649  * Assign the class to a constant (name starting uppercase) if you
1650  * want to treat it like a regular class.
1651  */
1652 
1653 static VALUE
1655 {
1656  VALUE super;
1657 
1658  if (RCLASS_SUPER(klass) != 0 || klass == rb_cBasicObject) {
1659  rb_raise(rb_eTypeError, "already initialized class");
1660  }
1661  if (argc == 0) {
1662  super = rb_cObject;
1663  }
1664  else {
1665  rb_scan_args(argc, argv, "01", &super);
1666  rb_check_inheritable(super);
1667  if (super != rb_cBasicObject && !RCLASS_SUPER(super)) {
1668  rb_raise(rb_eTypeError, "can't inherit uninitialized class");
1669  }
1670  }
1671  RCLASS_SUPER(klass) = super;
1672  rb_make_metaclass(klass, RBASIC(super)->klass);
1673  rb_class_inherited(super, klass);
1674  rb_mod_initialize(klass);
1675 
1676  return klass;
1677 }
1678 
1679 /*
1680  * call-seq:
1681  * class.allocate() -> obj
1682  *
1683  * Allocates space for a new object of <i>class</i>'s class and does not
1684  * call initialize on the new instance. The returned object must be an
1685  * instance of <i>class</i>.
1686  *
1687  * klass = Class.new do
1688  * def initialize(*args)
1689  * @initialized = true
1690  * end
1691  *
1692  * def initialized?
1693  * @initialized || false
1694  * end
1695  * end
1696  *
1697  * klass.allocate.initialized? #=> false
1698  *
1699  */
1700 
1701 VALUE
1703 {
1704  VALUE obj;
1705  rb_alloc_func_t allocator;
1706 
1707  if (RCLASS_SUPER(klass) == 0 && klass != rb_cBasicObject) {
1708  rb_raise(rb_eTypeError, "can't instantiate uninitialized class");
1709  }
1710  if (FL_TEST(klass, FL_SINGLETON)) {
1711  rb_raise(rb_eTypeError, "can't create instance of singleton class");
1712  }
1713  allocator = rb_get_alloc_func(klass);
1714  if (!allocator) {
1715  rb_raise(rb_eTypeError, "allocator undefined for %"PRIsVALUE,
1716  klass);
1717  }
1718 
1719 #if !defined(DTRACE_PROBES_DISABLED) || !DTRACE_PROBES_DISABLED
1721  const char * file = rb_sourcefile();
1723  file ? file : "",
1724  rb_sourceline());
1725  }
1726 #endif
1727 
1728  obj = (*allocator)(klass);
1729 
1730  if (rb_obj_class(obj) != rb_class_real(klass)) {
1731  rb_raise(rb_eTypeError, "wrong instance allocation");
1732  }
1733  return obj;
1734 }
1735 
1736 static VALUE
1738 {
1739  NEWOBJ_OF(obj, struct RObject, klass, T_OBJECT);
1740  return (VALUE)obj;
1741 }
1742 
1743 /*
1744  * call-seq:
1745  * class.new(args, ...) -> obj
1746  *
1747  * Calls <code>allocate</code> to create a new object of
1748  * <i>class</i>'s class, then invokes that object's
1749  * <code>initialize</code> method, passing it <i>args</i>.
1750  * This is the method that ends up getting called whenever
1751  * an object is constructed using .new.
1752  *
1753  */
1754 
1755 VALUE
1757 {
1758  VALUE obj;
1759 
1760  obj = rb_obj_alloc(klass);
1761  rb_obj_call_init(obj, argc, argv);
1762 
1763  return obj;
1764 }
1765 
1766 /*
1767  * call-seq:
1768  * class.superclass -> a_super_class or nil
1769  *
1770  * Returns the superclass of <i>class</i>, or <code>nil</code>.
1771  *
1772  * File.superclass #=> IO
1773  * IO.superclass #=> Object
1774  * Object.superclass #=> BasicObject
1775  * class Foo; end
1776  * class Bar < Foo; end
1777  * Bar.superclass #=> Foo
1778  *
1779  * returns nil when the given class hasn't a parent class:
1780  *
1781  * BasicObject.superclass #=> nil
1782  *
1783  */
1784 
1785 VALUE
1787 {
1788  VALUE super = RCLASS_SUPER(klass);
1789 
1790  if (!super) {
1791  if (klass == rb_cBasicObject) return Qnil;
1792  rb_raise(rb_eTypeError, "uninitialized class");
1793  }
1794  while (RB_TYPE_P(super, T_ICLASS)) {
1795  super = RCLASS_SUPER(super);
1796  }
1797  if (!super) {
1798  return Qnil;
1799  }
1800  return super;
1801 }
1802 
1803 VALUE
1805 {
1806  return RCLASS_SUPER(klass);
1807 }
1808 
1809 /*
1810  * call-seq:
1811  * attr_reader(symbol, ...) -> nil
1812  * attr(symbol, ...) -> nil
1813  *
1814  * Creates instance variables and corresponding methods that return the
1815  * value of each instance variable. Equivalent to calling
1816  * ``<code>attr</code><i>:name</i>'' on each name in turn.
1817  */
1818 
1819 static VALUE
1821 {
1822  int i;
1823 
1824  for (i=0; i<argc; i++) {
1825  rb_attr(klass, rb_to_id(argv[i]), TRUE, FALSE, TRUE);
1826  }
1827  return Qnil;
1828 }
1829 
1830 VALUE
1832 {
1833  if (argc == 2 && (argv[1] == Qtrue || argv[1] == Qfalse)) {
1834  rb_warning("optional boolean argument is obsoleted");
1835  rb_attr(klass, rb_to_id(argv[0]), 1, RTEST(argv[1]), TRUE);
1836  return Qnil;
1837  }
1838  return rb_mod_attr_reader(argc, argv, klass);
1839 }
1840 
1841 /*
1842  * call-seq:
1843  * attr_writer(symbol, ...) -> nil
1844  *
1845  * Creates an accessor method to allow assignment to the attribute
1846  * <i>symbol</i><code>.id2name</code>.
1847  */
1848 
1849 static VALUE
1851 {
1852  int i;
1853 
1854  for (i=0; i<argc; i++) {
1855  rb_attr(klass, rb_to_id(argv[i]), FALSE, TRUE, TRUE);
1856  }
1857  return Qnil;
1858 }
1859 
1860 /*
1861  * call-seq:
1862  * attr_accessor(symbol, ...) -> nil
1863  *
1864  * Defines a named attribute for this module, where the name is
1865  * <i>symbol.</i><code>id2name</code>, creating an instance variable
1866  * (<code>@name</code>) and a corresponding access method to read it.
1867  * Also creates a method called <code>name=</code> to set the attribute.
1868  *
1869  * module Mod
1870  * attr_accessor(:one, :two)
1871  * end
1872  * Mod.instance_methods.sort #=> [:one, :one=, :two, :two=]
1873  */
1874 
1875 static VALUE
1877 {
1878  int i;
1879 
1880  for (i=0; i<argc; i++) {
1881  rb_attr(klass, rb_to_id(argv[i]), TRUE, TRUE, TRUE);
1882  }
1883  return Qnil;
1884 }
1885 
1886 /*
1887  * call-seq:
1888  * mod.const_get(sym, inherit=true) -> obj
1889  * mod.const_get(str, inherit=true) -> obj
1890  *
1891  * Checks for a constant with the given name in <i>mod</i>
1892  * If +inherit+ is set, the lookup will also search
1893  * the ancestors (and +Object+ if <i>mod</i> is a +Module+.)
1894  *
1895  * The value of the constant is returned if a definition is found,
1896  * otherwise a +NameError+ is raised.
1897  *
1898  * Math.const_get(:PI) #=> 3.14159265358979
1899  *
1900  * This method will recursively look up constant names if a namespaced
1901  * class name is provided. For example:
1902  *
1903  * module Foo; class Bar; end end
1904  * Object.const_get 'Foo::Bar'
1905  *
1906  * The +inherit+ flag is respected on each lookup. For example:
1907  *
1908  * module Foo
1909  * class Bar
1910  * VAL = 10
1911  * end
1912  *
1913  * class Baz < Bar; end
1914  * end
1915  *
1916  * Object.const_get 'Foo::Baz::VAL' # => 10
1917  * Object.const_get 'Foo::Baz::VAL', false # => NameError
1918  */
1919 
1920 static VALUE
1922 {
1923  VALUE name, recur;
1924  rb_encoding *enc;
1925  const char *pbeg, *p, *path, *pend;
1926  ID id;
1927  int nestable = 1;
1928 
1929  if (argc == 1) {
1930  name = argv[0];
1931  recur = Qtrue;
1932  }
1933  else {
1934  rb_scan_args(argc, argv, "11", &name, &recur);
1935  }
1936 
1937  if (SYMBOL_P(name)) {
1938  name = rb_sym_to_s(name);
1939  nestable = 0;
1940  }
1941 
1942  name = rb_check_string_type(name);
1943  Check_Type(name, T_STRING);
1944 
1945  enc = rb_enc_get(name);
1946  path = RSTRING_PTR(name);
1947 
1948  if (!rb_enc_asciicompat(enc)) {
1949  rb_raise(rb_eArgError, "invalid class path encoding (non ASCII)");
1950  }
1951 
1952  pbeg = p = path;
1953  pend = path + RSTRING_LEN(name);
1954 
1955  if (p >= pend || !*p) {
1956  wrong_name:
1957  rb_raise(rb_eNameError, "wrong constant name %"PRIsVALUE,
1958  QUOTE(name));
1959  }
1960 
1961  if (p + 2 < pend && p[0] == ':' && p[1] == ':') {
1962  if (!nestable) goto wrong_name;
1963  mod = rb_cObject;
1964  p += 2;
1965  pbeg = p;
1966  }
1967 
1968  while (p < pend) {
1969  VALUE part;
1970  long len, beglen;
1971 
1972  while (p < pend && *p != ':') p++;
1973 
1974  if (pbeg == p) goto wrong_name;
1975 
1976  id = rb_check_id_cstr(pbeg, len = p-pbeg, enc);
1977  beglen = pbeg-path;
1978 
1979  if (p < pend && p[0] == ':') {
1980  if (!nestable) goto wrong_name;
1981  if (p + 2 >= pend || p[1] != ':') goto wrong_name;
1982  p += 2;
1983  pbeg = p;
1984  }
1985 
1986  if (!RB_TYPE_P(mod, T_MODULE) && !RB_TYPE_P(mod, T_CLASS)) {
1987  rb_raise(rb_eTypeError, "%"PRIsVALUE" does not refer to class/module",
1988  QUOTE(name));
1989  }
1990 
1991  if (!id) {
1992  if (!ISUPPER(*pbeg) || !rb_enc_symname2_p(pbeg, len, enc)) {
1993  part = rb_str_subseq(name, beglen, len);
1994  rb_name_error_str(part, "wrong constant name %"PRIsVALUE,
1995  QUOTE(part));
1996  }
1998  id = rb_intern3(pbeg, len, enc);
1999  }
2000  else {
2001  part = rb_str_subseq(name, beglen, len);
2002  rb_name_error_str(part, "uninitialized constant %"PRIsVALUE"%"PRIsVALUE,
2003  rb_str_subseq(name, 0, beglen),
2004  QUOTE(part));
2005  }
2006  }
2007  if (!rb_is_const_id(id)) {
2008  rb_name_error(id, "wrong constant name %"PRIsVALUE,
2009  QUOTE_ID(id));
2010  }
2011  mod = RTEST(recur) ? rb_const_get(mod, id) : rb_const_get_at(mod, id);
2012  }
2013 
2014  return mod;
2015 }
2016 
2017 /*
2018  * call-seq:
2019  * mod.const_set(sym, obj) -> obj
2020  *
2021  * Sets the named constant to the given object, returning that object.
2022  * Creates a new constant if no constant with the given name previously
2023  * existed.
2024  *
2025  * Math.const_set("HIGH_SCHOOL_PI", 22.0/7.0) #=> 3.14285714285714
2026  * Math::HIGH_SCHOOL_PI - Math::PI #=> 0.00126448926734968
2027  */
2028 
2029 static VALUE
2031 {
2032  ID id = rb_to_id(name);
2033 
2034  if (!rb_is_const_id(id)) {
2035  rb_name_error(id, "wrong constant name %"PRIsVALUE,
2036  QUOTE_ID(id));
2037  }
2038  rb_const_set(mod, id, value);
2039  return value;
2040 }
2041 
2042 /*
2043  * call-seq:
2044  * mod.const_defined?(sym, inherit=true) -> true or false
2045  *
2046  * Checks for a constant with the given name in <i>mod</i>
2047  * If +inherit+ is set, the lookup will also search
2048  * the ancestors (and +Object+ if <i>mod</i> is a +Module+.)
2049  *
2050  * Returns whether or not a definition is found:
2051  *
2052  * Math.const_defined? "PI" #=> true
2053  * IO.const_defined? :SYNC #=> true
2054  * IO.const_defined? :SYNC, false #=> false
2055  */
2056 
2057 static VALUE
2059 {
2060  VALUE name, recur;
2061  ID id;
2062 
2063  if (argc == 1) {
2064  name = argv[0];
2065  recur = Qtrue;
2066  }
2067  else {
2068  rb_scan_args(argc, argv, "11", &name, &recur);
2069  }
2070  if (!(id = rb_check_id(&name))) {
2071  if (rb_is_const_name(name)) {
2072  return Qfalse;
2073  }
2074  else {
2075  rb_name_error_str(name, "wrong constant name %"PRIsVALUE,
2076  QUOTE(name));
2077  }
2078  }
2079  if (!rb_is_const_id(id)) {
2080  rb_name_error(id, "wrong constant name %"PRIsVALUE,
2081  QUOTE_ID(id));
2082  }
2083  return RTEST(recur) ? rb_const_defined(mod, id) : rb_const_defined_at(mod, id);
2084 }
2085 
2086 /*
2087  * call-seq:
2088  * obj.instance_variable_get(symbol) -> obj
2089  *
2090  * Returns the value of the given instance variable, or nil if the
2091  * instance variable is not set. The <code>@</code> part of the
2092  * variable name should be included for regular instance
2093  * variables. Throws a <code>NameError</code> exception if the
2094  * supplied symbol is not valid as an instance variable name.
2095  *
2096  * class Fred
2097  * def initialize(p1, p2)
2098  * @a, @b = p1, p2
2099  * end
2100  * end
2101  * fred = Fred.new('cat', 99)
2102  * fred.instance_variable_get(:@a) #=> "cat"
2103  * fred.instance_variable_get("@b") #=> 99
2104  */
2105 
2106 static VALUE
2108 {
2109  ID id = rb_check_id(&iv);
2110 
2111  if (!id) {
2112  if (rb_is_instance_name(iv)) {
2113  return Qnil;
2114  }
2115  else {
2116  rb_name_error_str(iv, "`%"PRIsVALUE"' is not allowed as an instance variable name",
2117  QUOTE(iv));
2118  }
2119  }
2120  if (!rb_is_instance_id(id)) {
2121  rb_name_error(id, "`%"PRIsVALUE"' is not allowed as an instance variable name",
2122  QUOTE_ID(id));
2123  }
2124  return rb_ivar_get(obj, id);
2125 }
2126 
2127 /*
2128  * call-seq:
2129  * obj.instance_variable_set(symbol, obj) -> obj
2130  *
2131  * Sets the instance variable names by <i>symbol</i> to
2132  * <i>object</i>, thereby frustrating the efforts of the class's
2133  * author to attempt to provide proper encapsulation. The variable
2134  * did not have to exist prior to this call.
2135  *
2136  * class Fred
2137  * def initialize(p1, p2)
2138  * @a, @b = p1, p2
2139  * end
2140  * end
2141  * fred = Fred.new('cat', 99)
2142  * fred.instance_variable_set(:@a, 'dog') #=> "dog"
2143  * fred.instance_variable_set(:@c, 'cat') #=> "cat"
2144  * fred.inspect #=> "#<Fred:0x401b3da8 @a=\"dog\", @b=99, @c=\"cat\">"
2145  */
2146 
2147 static VALUE
2149 {
2150  ID id = rb_to_id(iv);
2151 
2152  if (!rb_is_instance_id(id)) {
2153  rb_name_error(id, "`%"PRIsVALUE"' is not allowed as an instance variable name",
2154  QUOTE_ID(id));
2155  }
2156  return rb_ivar_set(obj, id, val);
2157 }
2158 
2159 /*
2160  * call-seq:
2161  * obj.instance_variable_defined?(symbol) -> true or false
2162  *
2163  * Returns <code>true</code> if the given instance variable is
2164  * defined in <i>obj</i>.
2165  *
2166  * class Fred
2167  * def initialize(p1, p2)
2168  * @a, @b = p1, p2
2169  * end
2170  * end
2171  * fred = Fred.new('cat', 99)
2172  * fred.instance_variable_defined?(:@a) #=> true
2173  * fred.instance_variable_defined?("@b") #=> true
2174  * fred.instance_variable_defined?("@c") #=> false
2175  */
2176 
2177 static VALUE
2179 {
2180  ID id = rb_check_id(&iv);
2181 
2182  if (!id) {
2183  if (rb_is_instance_name(iv)) {
2184  return Qfalse;
2185  }
2186  else {
2187  rb_name_error_str(iv, "`%"PRIsVALUE"' is not allowed as an instance variable name",
2188  QUOTE(iv));
2189  }
2190  }
2191  if (!rb_is_instance_id(id)) {
2192  rb_name_error(id, "`%"PRIsVALUE"' is not allowed as an instance variable name",
2193  QUOTE_ID(id));
2194  }
2195  return rb_ivar_defined(obj, id);
2196 }
2197 
2198 /*
2199  * call-seq:
2200  * mod.class_variable_get(symbol) -> obj
2201  *
2202  * Returns the value of the given class variable (or throws a
2203  * <code>NameError</code> exception). The <code>@@</code> part of the
2204  * variable name should be included for regular class variables
2205  *
2206  * class Fred
2207  * @@foo = 99
2208  * end
2209  * Fred.class_variable_get(:@@foo) #=> 99
2210  */
2211 
2212 static VALUE
2214 {
2215  ID id = rb_check_id(&iv);
2216 
2217  if (!id) {
2218  if (rb_is_class_name(iv)) {
2219  rb_name_error_str(iv, "uninitialized class variable %"PRIsVALUE" in %"PRIsVALUE"",
2220  iv, rb_class_name(obj));
2221  }
2222  else {
2223  rb_name_error_str(iv, "`%"PRIsVALUE"' is not allowed as a class variable name",
2224  QUOTE(iv));
2225  }
2226  }
2227  if (!rb_is_class_id(id)) {
2228  rb_name_error(id, "`%"PRIsVALUE"' is not allowed as a class variable name",
2229  QUOTE_ID(id));
2230  }
2231  return rb_cvar_get(obj, id);
2232 }
2233 
2234 /*
2235  * call-seq:
2236  * obj.class_variable_set(symbol, obj) -> obj
2237  *
2238  * Sets the class variable names by <i>symbol</i> to
2239  * <i>object</i>.
2240  *
2241  * class Fred
2242  * @@foo = 99
2243  * def foo
2244  * @@foo
2245  * end
2246  * end
2247  * Fred.class_variable_set(:@@foo, 101) #=> 101
2248  * Fred.new.foo #=> 101
2249  */
2250 
2251 static VALUE
2253 {
2254  ID id = rb_to_id(iv);
2255 
2256  if (!rb_is_class_id(id)) {
2257  rb_name_error(id, "`%"PRIsVALUE"' is not allowed as a class variable name",
2258  QUOTE_ID(id));
2259  }
2260  rb_cvar_set(obj, id, val);
2261  return val;
2262 }
2263 
2264 /*
2265  * call-seq:
2266  * obj.class_variable_defined?(symbol) -> true or false
2267  *
2268  * Returns <code>true</code> if the given class variable is defined
2269  * in <i>obj</i>.
2270  *
2271  * class Fred
2272  * @@foo = 99
2273  * end
2274  * Fred.class_variable_defined?(:@@foo) #=> true
2275  * Fred.class_variable_defined?(:@@bar) #=> false
2276  */
2277 
2278 static VALUE
2280 {
2281  ID id = rb_check_id(&iv);
2282 
2283  if (!id) {
2284  if (rb_is_class_name(iv)) {
2285  return Qfalse;
2286  }
2287  else {
2288  rb_name_error_str(iv, "`%"PRIsVALUE"' is not allowed as a class variable name",
2289  QUOTE(iv));
2290  }
2291  }
2292  if (!rb_is_class_id(id)) {
2293  rb_name_error(id, "`%"PRIsVALUE"' is not allowed as a class variable name",
2294  QUOTE_ID(id));
2295  }
2296  return rb_cvar_defined(obj, id);
2297 }
2298 
2299 static struct conv_method_tbl {
2300  const char *method;
2302 } conv_method_names[] = {
2303  {"to_int", 0},
2304  {"to_ary", 0},
2305  {"to_str", 0},
2306  {"to_sym", 0},
2307  {"to_hash", 0},
2308  {"to_proc", 0},
2309  {"to_io", 0},
2310  {"to_a", 0},
2311  {"to_s", 0},
2312  {NULL, 0}
2313 };
2314 #define IMPLICIT_CONVERSIONS 7
2315 
2316 static VALUE
2317 convert_type(VALUE val, const char *tname, const char *method, int raise)
2318 {
2319  ID m = 0;
2320  int i;
2321  VALUE r;
2322 
2323  for (i=0; conv_method_names[i].method; i++) {
2324  if (conv_method_names[i].method[0] == method[0] &&
2325  strcmp(conv_method_names[i].method, method) == 0) {
2326  m = conv_method_names[i].id;
2327  break;
2328  }
2329  }
2330  if (!m) m = rb_intern(method);
2331  r = rb_check_funcall(val, m, 0, 0);
2332  if (r == Qundef) {
2333  if (raise) {
2335  ? "no implicit conversion of %s into %s"
2336  : "can't convert %s into %s",
2337  NIL_P(val) ? "nil" :
2338  val == Qtrue ? "true" :
2339  val == Qfalse ? "false" :
2340  rb_obj_classname(val),
2341  tname);
2342  }
2343  return Qnil;
2344  }
2345  return r;
2346 }
2347 
2348 VALUE
2349 rb_convert_type(VALUE val, int type, const char *tname, const char *method)
2350 {
2351  VALUE v;
2352 
2353  if (TYPE(val) == type) return val;
2354  v = convert_type(val, tname, method, TRUE);
2355  if (TYPE(v) != type) {
2356  const char *cname = rb_obj_classname(val);
2357  rb_raise(rb_eTypeError, "can't convert %s to %s (%s#%s gives %s)",
2358  cname, tname, cname, method, rb_obj_classname(v));
2359  }
2360  return v;
2361 }
2362 
2363 VALUE
2364 rb_check_convert_type(VALUE val, int type, const char *tname, const char *method)
2365 {
2366  VALUE v;
2367 
2368  /* always convert T_DATA */
2369  if (TYPE(val) == type && type != T_DATA) return val;
2370  v = convert_type(val, tname, method, FALSE);
2371  if (NIL_P(v)) return Qnil;
2372  if (TYPE(v) != type) {
2373  const char *cname = rb_obj_classname(val);
2374  rb_raise(rb_eTypeError, "can't convert %s to %s (%s#%s gives %s)",
2375  cname, tname, cname, method, rb_obj_classname(v));
2376  }
2377  return v;
2378 }
2379 
2380 
2381 static VALUE
2383 {
2384  VALUE v;
2385 
2386  if (FIXNUM_P(val)) return val;
2387  if (RB_TYPE_P(val, T_BIGNUM)) return val;
2388  v = convert_type(val, "Integer", method, TRUE);
2389  if (!rb_obj_is_kind_of(v, rb_cInteger)) {
2390  const char *cname = rb_obj_classname(val);
2391  rb_raise(rb_eTypeError, "can't convert %s to Integer (%s#%s gives %s)",
2392  cname, cname, method, rb_obj_classname(v));
2393  }
2394  return v;
2395 }
2396 
2397 VALUE
2399 {
2400  VALUE v;
2401 
2402  if (FIXNUM_P(val)) return val;
2403  if (RB_TYPE_P(val, T_BIGNUM)) return val;
2404  v = convert_type(val, "Integer", method, FALSE);
2405  if (!rb_obj_is_kind_of(v, rb_cInteger)) {
2406  return Qnil;
2407  }
2408  return v;
2409 }
2410 
2411 VALUE
2413 {
2414  return rb_to_integer(val, "to_int");
2415 }
2416 
2417 VALUE
2419 {
2420  return rb_check_to_integer(val, "to_int");
2421 }
2422 
2423 static VALUE
2425 {
2426  VALUE tmp;
2427 
2428  switch (TYPE(val)) {
2429  case T_FLOAT:
2430  if (base != 0) goto arg_error;
2431  if (RFLOAT_VALUE(val) <= (double)FIXNUM_MAX
2432  && RFLOAT_VALUE(val) >= (double)FIXNUM_MIN) {
2433  break;
2434  }
2435  return rb_dbl2big(RFLOAT_VALUE(val));
2436 
2437  case T_FIXNUM:
2438  case T_BIGNUM:
2439  if (base != 0) goto arg_error;
2440  return val;
2441 
2442  case T_STRING:
2443  string_conv:
2444  return rb_str_to_inum(val, base, TRUE);
2445 
2446  case T_NIL:
2447  if (base != 0) goto arg_error;
2448  rb_raise(rb_eTypeError, "can't convert nil into Integer");
2449  break;
2450 
2451  default:
2452  break;
2453  }
2454  if (base != 0) {
2455  tmp = rb_check_string_type(val);
2456  if (!NIL_P(tmp)) goto string_conv;
2457  arg_error:
2458  rb_raise(rb_eArgError, "base specified for non string value");
2459  }
2460  tmp = convert_type(val, "Integer", "to_int", FALSE);
2461  if (NIL_P(tmp)) {
2462  return rb_to_integer(val, "to_i");
2463  }
2464  return tmp;
2465 
2466 }
2467 
2468 VALUE
2470 {
2471  return rb_convert_to_integer(val, 0);
2472 }
2473 
2474 /*
2475  * call-seq:
2476  * Integer(arg,base=0) -> integer
2477  *
2478  * Converts <i>arg</i> to a <code>Fixnum</code> or <code>Bignum</code>.
2479  * Numeric types are converted directly (with floating point numbers
2480  * being truncated). <i>base</i> (0, or between 2 and 36) is a base for
2481  * integer string representation. If <i>arg</i> is a <code>String</code>,
2482  * when <i>base</i> is omitted or equals to zero, radix indicators
2483  * (<code>0</code>, <code>0b</code>, and <code>0x</code>) are honored.
2484  * In any case, strings should be strictly conformed to numeric
2485  * representation. This behavior is different from that of
2486  * <code>String#to_i</code>. Non string values will be converted using
2487  * <code>to_int</code>, and <code>to_i</code>.
2488  *
2489  * Integer(123.999) #=> 123
2490  * Integer("0x1a") #=> 26
2491  * Integer(Time.new) #=> 1204973019
2492  * Integer("0930", 10) #=> 930
2493  * Integer("111", 2) #=> 7
2494  */
2495 
2496 static VALUE
2498 {
2499  VALUE arg = Qnil;
2500  int base = 0;
2501 
2502  switch (argc) {
2503  case 2:
2504  base = NUM2INT(argv[1]);
2505  case 1:
2506  arg = argv[0];
2507  break;
2508  default:
2509  /* should cause ArgumentError */
2510  rb_scan_args(argc, argv, "11", NULL, NULL);
2511  }
2512  return rb_convert_to_integer(arg, base);
2513 }
2514 
2515 double
2516 rb_cstr_to_dbl(const char *p, int badcheck)
2517 {
2518  const char *q;
2519  char *end;
2520  double d;
2521  const char *ellipsis = "";
2522  int w;
2523  enum {max_width = 20};
2524 #define OutOfRange() ((end - p > max_width) ? \
2525  (w = max_width, ellipsis = "...") : \
2526  (w = (int)(end - p), ellipsis = ""))
2527 
2528  if (!p) return 0.0;
2529  q = p;
2530  while (ISSPACE(*p)) p++;
2531 
2532  if (!badcheck && p[0] == '0' && (p[1] == 'x' || p[1] == 'X')) {
2533  return 0.0;
2534  }
2535 
2536  d = strtod(p, &end);
2537  if (errno == ERANGE) {
2538  OutOfRange();
2539  rb_warning("Float %.*s%s out of range", w, p, ellipsis);
2540  errno = 0;
2541  }
2542  if (p == end) {
2543  if (badcheck) {
2544  bad:
2545  rb_invalid_str(q, "Float()");
2546  }
2547  return d;
2548  }
2549  if (*end) {
2550  char buf[DBL_DIG * 4 + 10];
2551  char *n = buf;
2552  char *e = buf + sizeof(buf) - 1;
2553  char prev = 0;
2554 
2555  while (p < end && n < e) prev = *n++ = *p++;
2556  while (*p) {
2557  if (*p == '_') {
2558  /* remove underscores between digits */
2559  if (badcheck) {
2560  if (n == buf || !ISDIGIT(prev)) goto bad;
2561  ++p;
2562  if (!ISDIGIT(*p)) goto bad;
2563  }
2564  else {
2565  while (*++p == '_');
2566  continue;
2567  }
2568  }
2569  prev = *p++;
2570  if (n < e) *n++ = prev;
2571  }
2572  *n = '\0';
2573  p = buf;
2574 
2575  if (!badcheck && p[0] == '0' && (p[1] == 'x' || p[1] == 'X')) {
2576  return 0.0;
2577  }
2578 
2579  d = strtod(p, &end);
2580  if (errno == ERANGE) {
2581  OutOfRange();
2582  rb_warning("Float %.*s%s out of range", w, p, ellipsis);
2583  errno = 0;
2584  }
2585  if (badcheck) {
2586  if (!end || p == end) goto bad;
2587  while (*end && ISSPACE(*end)) end++;
2588  if (*end) goto bad;
2589  }
2590  }
2591  if (errno == ERANGE) {
2592  errno = 0;
2593  OutOfRange();
2594  rb_raise(rb_eArgError, "Float %.*s%s out of range", w, q, ellipsis);
2595  }
2596  return d;
2597 }
2598 
2599 double
2600 rb_str_to_dbl(VALUE str, int badcheck)
2601 {
2602  char *s;
2603  long len;
2604  double ret;
2605  VALUE v = 0;
2606 
2607  StringValue(str);
2608  s = RSTRING_PTR(str);
2609  len = RSTRING_LEN(str);
2610  if (s) {
2611  if (badcheck && memchr(s, '\0', len)) {
2612  rb_raise(rb_eArgError, "string for Float contains null byte");
2613  }
2614  if (s[len]) { /* no sentinel somehow */
2615  char *p = ALLOCV(v, len);
2616  MEMCPY(p, s, char, len);
2617  p[len] = '\0';
2618  s = p;
2619  }
2620  }
2621  ret = rb_cstr_to_dbl(s, badcheck);
2622  if (v)
2623  ALLOCV_END(v);
2624  return ret;
2625 }
2626 
2627 VALUE
2629 {
2630  switch (TYPE(val)) {
2631  case T_FIXNUM:
2632  return DBL2NUM((double)FIX2LONG(val));
2633 
2634  case T_FLOAT:
2635  return val;
2636 
2637  case T_BIGNUM:
2638  return DBL2NUM(rb_big2dbl(val));
2639 
2640  case T_STRING:
2641  return DBL2NUM(rb_str_to_dbl(val, TRUE));
2642 
2643  case T_NIL:
2644  rb_raise(rb_eTypeError, "can't convert nil into Float");
2645  break;
2646 
2647  default:
2648  return rb_convert_type(val, T_FLOAT, "Float", "to_f");
2649  }
2650 
2651  UNREACHABLE;
2652 }
2653 
2654 /*
2655  * call-seq:
2656  * Float(arg) -> float
2657  *
2658  * Returns <i>arg</i> converted to a float. Numeric types are converted
2659  * directly, the rest are converted using <i>arg</i>.to_f. As of Ruby
2660  * 1.8, converting <code>nil</code> generates a <code>TypeError</code>.
2661  *
2662  * Float(1) #=> 1.0
2663  * Float("123.456") #=> 123.456
2664  */
2665 
2666 static VALUE
2668 {
2669  return rb_Float(arg);
2670 }
2671 
2672 VALUE
2674 {
2675  if (RB_TYPE_P(val, T_FLOAT)) return val;
2676  if (!rb_obj_is_kind_of(val, rb_cNumeric)) {
2677  rb_raise(rb_eTypeError, "can't convert %s into Float",
2678  NIL_P(val) ? "nil" :
2679  val == Qtrue ? "true" :
2680  val == Qfalse ? "false" :
2681  rb_obj_classname(val));
2682  }
2683  return rb_convert_type(val, T_FLOAT, "Float", "to_f");
2684 }
2685 
2686 VALUE
2688 {
2689  if (RB_TYPE_P(val, T_FLOAT)) return val;
2690  if (!rb_obj_is_kind_of(val, rb_cNumeric)) {
2691  return Qnil;
2692  }
2693  return rb_check_convert_type(val, T_FLOAT, "Float", "to_f");
2694 }
2695 
2696 double
2698 {
2699  switch (TYPE(val)) {
2700  case T_FLOAT:
2701  return RFLOAT_VALUE(val);
2702 
2703  case T_STRING:
2704  rb_raise(rb_eTypeError, "no implicit conversion to float from string");
2705  break;
2706 
2707  case T_NIL:
2708  rb_raise(rb_eTypeError, "no implicit conversion to float from nil");
2709  break;
2710 
2711  default:
2712  break;
2713  }
2714 
2715  return RFLOAT_VALUE(rb_Float(val));
2716 }
2717 
2718 VALUE
2720 {
2722  if (NIL_P(tmp))
2723  tmp = rb_convert_type(val, T_STRING, "String", "to_s");
2724  return tmp;
2725 }
2726 
2727 
2728 /*
2729  * call-seq:
2730  * String(arg) -> string
2731  *
2732  * Converts <i>arg</i> to a <code>String</code> by calling its
2733  * <code>to_s</code> method.
2734  *
2735  * String(self) #=> "main"
2736  * String(self.class) #=> "Object"
2737  * String(123456) #=> "123456"
2738  */
2739 
2740 static VALUE
2742 {
2743  return rb_String(arg);
2744 }
2745 
2746 VALUE
2748 {
2749  VALUE tmp = rb_check_array_type(val);
2750 
2751  if (NIL_P(tmp)) {
2752  tmp = rb_check_convert_type(val, T_ARRAY, "Array", "to_a");
2753  if (NIL_P(tmp)) {
2754  return rb_ary_new3(1, val);
2755  }
2756  }
2757  return tmp;
2758 }
2759 
2760 /*
2761  * call-seq:
2762  * Array(arg) -> array
2763  *
2764  * Returns +arg+ as an Array.
2765  *
2766  * First tries to call Array#to_ary on +arg+, then Array#to_a.
2767  *
2768  * Array(1..5) #=> [1, 2, 3, 4, 5]
2769  */
2770 
2771 static VALUE
2773 {
2774  return rb_Array(arg);
2775 }
2776 
2777 VALUE
2779 {
2780  VALUE tmp;
2781 
2782  if (NIL_P(val)) return rb_hash_new();
2783  tmp = rb_check_hash_type(val);
2784  if (NIL_P(tmp)) {
2785  if (RB_TYPE_P(val, T_ARRAY) && RARRAY_LEN(val) == 0)
2786  return rb_hash_new();
2787  rb_raise(rb_eTypeError, "can't convert %s into Hash", rb_obj_classname(val));
2788  }
2789  return tmp;
2790 }
2791 
2792 /*
2793  * call-seq:
2794  * Hash(arg) -> hash
2795  *
2796  * Converts <i>arg</i> to a <code>Hash</code> by calling
2797  * <i>arg</i><code>.to_hash</code>. Returns an empty <code>Hash</code> when
2798  * <i>arg</i> is <tt>nil</tt> or <tt>[]</tt>.
2799  *
2800  * Hash([]) #=> {}
2801  * Hash(nil) #=> nil
2802  * Hash(key: :value) #=> {:key => :value}
2803  * Hash([1, 2, 3]) #=> TypeError
2804  */
2805 
2806 static VALUE
2808 {
2809  return rb_Hash(arg);
2810 }
2811 
2812 /*
2813  * Document-class: Class
2814  *
2815  * Classes in Ruby are first-class objects---each is an instance of
2816  * class <code>Class</code>.
2817  *
2818  * Typically, you create a new class by using:
2819  *
2820  * class Name
2821  * # some class describing the class behavior
2822  * end
2823  *
2824  * When a new class is created, an object of type Class is initialized and
2825  * assigned to a global constant (<code>Name</code> in this case).
2826  *
2827  * When <code>Name.new</code> is called to create a new object, the
2828  * <code>new</code> method in <code>Class</code> is run by default.
2829  * This can be demonstrated by overriding <code>new</code> in
2830  * <code>Class</code>:
2831  *
2832  * class Class
2833  * alias oldNew new
2834  * def new(*args)
2835  * print "Creating a new ", self.name, "\n"
2836  * oldNew(*args)
2837  * end
2838  * end
2839  *
2840  *
2841  * class Name
2842  * end
2843  *
2844  *
2845  * n = Name.new
2846  *
2847  * <em>produces:</em>
2848  *
2849  * Creating a new Name
2850  *
2851  * Classes, modules, and objects are interrelated. In the diagram
2852  * that follows, the vertical arrows represent inheritance, and the
2853  * parentheses meta-classes. All metaclasses are instances
2854  * of the class `Class'.
2855  * +---------+ +-...
2856  * | | |
2857  * BasicObject-----|-->(BasicObject)-------|-...
2858  * ^ | ^ |
2859  * | | | |
2860  * Object---------|----->(Object)---------|-...
2861  * ^ | ^ |
2862  * | | | |
2863  * +-------+ | +--------+ |
2864  * | | | | | |
2865  * | Module-|---------|--->(Module)-|-...
2866  * | ^ | | ^ |
2867  * | | | | | |
2868  * | Class-|---------|---->(Class)-|-...
2869  * | ^ | | ^ |
2870  * | +---+ | +----+
2871  * | |
2872  * obj--->OtherClass---------->(OtherClass)-----------...
2873  *
2874  */
2875 
2876 
2895 /* Document-class: BasicObject
2896  *
2897  * BasicObject is the parent class of all classes in Ruby. It's an explicit
2898  * blank class.
2899  *
2900  * BasicObject can be used for creating object hierarchies independent of
2901  * Ruby's object hierarchy, proxy objects like the Delegator class, or other
2902  * uses where namespace pollution from Ruby's methods and classes must be
2903  * avoided.
2904  *
2905  * To avoid polluting BasicObject for other users an appropriately named
2906  * subclass of BasicObject should be created instead of directly modifying
2907  * BasicObject:
2908  *
2909  * class MyObjectSystem < BasicObject
2910  * end
2911  *
2912  * BasicObject does not include Kernel (for methods like +puts+) and
2913  * BasicObject is outside of the namespace of the standard library so common
2914  * classes will not be found without a using a full class path.
2915  *
2916  * A variety of strategies can be used to provide useful portions of the
2917  * standard library to subclasses of BasicObject. A subclass could
2918  * <code>include Kernel</code> to obtain +puts+, +exit+, etc. A custom
2919  * Kernel-like module could be created and included or delegation can be used
2920  * via #method_missing:
2921  *
2922  * class MyObjectSystem < BasicObject
2923  * DELEGATE = [:puts, :p]
2924  *
2925  * def method_missing(name, *args, &block)
2926  * super unless DELEGATE.include? name
2927  * ::Kernel.send(name, *args, &block)
2928  * end
2929  *
2930  * def respond_to_missing?(name, include_private = false)
2931  * DELEGATE.include?(name) or super
2932  * end
2933  * end
2934  *
2935  * Access to classes and modules from the Ruby standard library can be
2936  * obtained in a BasicObject subclass by referencing the desired constant
2937  * from the root like <code>::File</code> or <code>::Enumerator</code>.
2938  * Like #method_missing, #const_missing can be used to delegate constant
2939  * lookup to +Object+:
2940  *
2941  * class MyObjectSystem < BasicObject
2942  * def self.const_missing(name)
2943  * ::Object.const_get(name)
2944  * end
2945  * end
2946  */
2947 
2948 /* Document-class: Object
2949  *
2950  * Object is the default root of all Ruby objects. Object inherits from
2951  * BasicObject which allows creating alternate object hierarchies. Methods
2952  * on object are available to all classes unless explicitly overridden.
2953  *
2954  * Object mixes in the Kernel module, making the built-in kernel functions
2955  * globally accessible. Although the instance methods of Object are defined
2956  * by the Kernel module, we have chosen to document them here for clarity.
2957  *
2958  * When referencing constants in classes inheriting from Object you do not
2959  * need to use the full namespace. For example, referencing +File+ inside
2960  * +YourClass+ will find the top-level File class.
2961  *
2962  * In the descriptions of Object's methods, the parameter <i>symbol</i> refers
2963  * to a symbol, which is either a quoted string or a Symbol (such as
2964  * <code>:name</code>).
2965  */
2966 
2967 void
2969 {
2970  int i;
2971 
2973 
2974 #if 0
2975  // teach RDoc about these classes
2976  rb_cBasicObject = rb_define_class("BasicObject", Qnil);
2978  rb_cModule = rb_define_class("Module", rb_cObject);
2979  rb_cClass = rb_define_class("Class", rb_cModule);
2980 #endif
2981 
2982 #undef rb_intern
2983 #define rb_intern(str) rb_intern_const(str)
2984 
2991 
2992  rb_define_private_method(rb_cBasicObject, "singleton_method_added", rb_obj_dummy, 1);
2993  rb_define_private_method(rb_cBasicObject, "singleton_method_removed", rb_obj_dummy, 1);
2994  rb_define_private_method(rb_cBasicObject, "singleton_method_undefined", rb_obj_dummy, 1);
2995 
2996  /* Document-module: Kernel
2997  *
2998  * The Kernel module is included by class Object, so its methods are
2999  * available in every Ruby object.
3000  *
3001  * The Kernel instance methods are documented in class Object while the
3002  * module methods are documented here. These methods are called without a
3003  * receiver and thus can be called in functional form:
3004  *
3005  * sprintf "%.1f", 1.234 #=> "1.2"
3006  *
3007  */
3008  rb_mKernel = rb_define_module("Kernel");
3014  rb_define_private_method(rb_cModule, "method_added", rb_obj_dummy, 1);
3015  rb_define_private_method(rb_cModule, "method_removed", rb_obj_dummy, 1);
3016  rb_define_private_method(rb_cModule, "method_undefined", rb_obj_dummy, 1);
3017 
3018  rb_define_method(rb_mKernel, "nil?", rb_false, 0);
3019  rb_define_method(rb_mKernel, "===", rb_equal, 1);
3025 
3027  rb_define_method(rb_mKernel, "singleton_class", rb_obj_singleton_class, 0);
3030  rb_define_method(rb_mKernel, "initialize_copy", rb_obj_init_copy, 1);
3031  rb_define_method(rb_mKernel, "initialize_dup", rb_obj_init_dup_clone, 1);
3032  rb_define_method(rb_mKernel, "initialize_clone", rb_obj_init_dup_clone, 1);
3033 
3035  rb_define_method(rb_mKernel, "tainted?", rb_obj_tainted, 0);
3036  rb_define_method(rb_mKernel, "untaint", rb_obj_untaint, 0);
3037  rb_define_method(rb_mKernel, "untrust", rb_obj_untrust, 0);
3038  rb_define_method(rb_mKernel, "untrusted?", rb_obj_untrusted, 0);
3040  rb_define_method(rb_mKernel, "freeze", rb_obj_freeze, 0);
3042 
3044  rb_define_method(rb_mKernel, "inspect", rb_obj_inspect, 0);
3045  rb_define_method(rb_mKernel, "methods", rb_obj_methods, -1); /* in class.c */
3046  rb_define_method(rb_mKernel, "singleton_methods", rb_obj_singleton_methods, -1); /* in class.c */
3047  rb_define_method(rb_mKernel, "protected_methods", rb_obj_protected_methods, -1); /* in class.c */
3048  rb_define_method(rb_mKernel, "private_methods", rb_obj_private_methods, -1); /* in class.c */
3049  rb_define_method(rb_mKernel, "public_methods", rb_obj_public_methods, -1); /* in class.c */
3050  rb_define_method(rb_mKernel, "instance_variables", rb_obj_instance_variables, 0); /* in variable.c */
3051  rb_define_method(rb_mKernel, "instance_variable_get", rb_obj_ivar_get, 1);
3052  rb_define_method(rb_mKernel, "instance_variable_set", rb_obj_ivar_set, 2);
3053  rb_define_method(rb_mKernel, "instance_variable_defined?", rb_obj_ivar_defined, 1);
3054  rb_define_method(rb_mKernel, "remove_instance_variable",
3055  rb_obj_remove_instance_variable, 1); /* in variable.c */
3056 
3057  rb_define_method(rb_mKernel, "instance_of?", rb_obj_is_instance_of, 1);
3061 
3062  rb_define_global_function("sprintf", rb_f_sprintf, -1); /* in sprintf.c */
3063  rb_define_global_function("format", rb_f_sprintf, -1); /* in sprintf.c */
3064 
3065  rb_define_global_function("Integer", rb_f_integer, -1);
3067 
3068  rb_define_global_function("String", rb_f_string, 1);
3071 
3072  rb_cNilClass = rb_define_class("NilClass", rb_cObject);
3073  rb_define_method(rb_cNilClass, "to_i", nil_to_i, 0);
3074  rb_define_method(rb_cNilClass, "to_f", nil_to_f, 0);
3075  rb_define_method(rb_cNilClass, "to_s", nil_to_s, 0);
3076  rb_define_method(rb_cNilClass, "to_a", nil_to_a, 0);
3077  rb_define_method(rb_cNilClass, "to_h", nil_to_h, 0);
3078  rb_define_method(rb_cNilClass, "inspect", nil_inspect, 0);
3082 
3083  rb_define_method(rb_cNilClass, "nil?", rb_true, 0);
3086  /*
3087  * An alias of +nil+
3088  */
3089  rb_define_global_const("NIL", Qnil);
3090 
3091  rb_define_method(rb_cModule, "freeze", rb_mod_freeze, 0);
3099  rb_define_method(rb_cModule, "initialize_copy", rb_mod_init_copy, 1); /* in class.c */
3101  rb_define_alias(rb_cModule, "inspect", "to_s");
3102  rb_define_method(rb_cModule, "included_modules", rb_mod_included_modules, 0); /* in class.c */
3103  rb_define_method(rb_cModule, "include?", rb_mod_include_p, 1); /* in class.c */
3104  rb_define_method(rb_cModule, "name", rb_mod_name, 0); /* in variable.c */
3105  rb_define_method(rb_cModule, "ancestors", rb_mod_ancestors, 0); /* in class.c */
3106 
3111 
3113  rb_define_method(rb_cModule, "initialize", rb_mod_initialize, 0);
3114  rb_define_method(rb_cModule, "instance_methods", rb_class_instance_methods, -1); /* in class.c */
3115  rb_define_method(rb_cModule, "public_instance_methods",
3116  rb_class_public_instance_methods, -1); /* in class.c */
3117  rb_define_method(rb_cModule, "protected_instance_methods",
3118  rb_class_protected_instance_methods, -1); /* in class.c */
3119  rb_define_method(rb_cModule, "private_instance_methods",
3120  rb_class_private_instance_methods, -1); /* in class.c */
3121 
3122  rb_define_method(rb_cModule, "constants", rb_mod_constants, -1); /* in variable.c */
3123  rb_define_method(rb_cModule, "const_get", rb_mod_const_get, -1);
3124  rb_define_method(rb_cModule, "const_set", rb_mod_const_set, 2);
3125  rb_define_method(rb_cModule, "const_defined?", rb_mod_const_defined, -1);
3126  rb_define_private_method(rb_cModule, "remove_const",
3127  rb_mod_remove_const, 1); /* in variable.c */
3128  rb_define_method(rb_cModule, "const_missing",
3129  rb_mod_const_missing, 1); /* in variable.c */
3130  rb_define_method(rb_cModule, "class_variables",
3131  rb_mod_class_variables, -1); /* in variable.c */
3132  rb_define_method(rb_cModule, "remove_class_variable",
3133  rb_mod_remove_cvar, 1); /* in variable.c */
3134  rb_define_method(rb_cModule, "class_variable_get", rb_mod_cvar_get, 1);
3135  rb_define_method(rb_cModule, "class_variable_set", rb_mod_cvar_set, 2);
3136  rb_define_method(rb_cModule, "class_variable_defined?", rb_mod_cvar_defined, 1);
3137  rb_define_method(rb_cModule, "public_constant", rb_mod_public_constant, -1); /* in variable.c */
3138  rb_define_method(rb_cModule, "private_constant", rb_mod_private_constant, -1); /* in variable.c */
3139 
3140  rb_define_method(rb_cClass, "allocate", rb_obj_alloc, 0);
3142  rb_define_method(rb_cClass, "initialize", rb_class_initialize, -1);
3143  rb_define_method(rb_cClass, "superclass", rb_class_superclass, 0);
3145  rb_undef_method(rb_cClass, "extend_object");
3146  rb_undef_method(rb_cClass, "append_features");
3147 
3148  /*
3149  * Document-class: Data
3150  *
3151  * This is a recommended base class for C extensions using Data_Make_Struct
3152  * or Data_Wrap_Struct, see README.EXT for details.
3153  */
3154  rb_cData = rb_define_class("Data", rb_cObject);
3156 
3157  rb_cTrueClass = rb_define_class("TrueClass", rb_cObject);
3159  rb_define_alias(rb_cTrueClass, "inspect", "to_s");
3165  /*
3166  * An alias of +true+
3167  */
3168  rb_define_global_const("TRUE", Qtrue);
3169 
3170  rb_cFalseClass = rb_define_class("FalseClass", rb_cObject);
3172  rb_define_alias(rb_cFalseClass, "inspect", "to_s");
3178  /*
3179  * An alias of +false+
3180  */
3181  rb_define_global_const("FALSE", Qfalse);
3182 
3183  id_eq = rb_intern("==");
3184  id_eql = rb_intern("eql?");
3185  id_match = rb_intern("=~");
3186  id_inspect = rb_intern("inspect");
3187  id_init_copy = rb_intern("initialize_copy");
3188  id_init_clone = rb_intern("initialize_clone");
3189  id_init_dup = rb_intern("initialize_dup");
3190  id_const_missing = rb_intern("const_missing");
3191 
3192  for (i=0; conv_method_names[i].method; i++) {
3194  }
3195 }
#define FIXNUM_MAX
#define RB_TYPE_P(obj, type)
VALUE rb_const_get_at(VALUE, ID)
Definition: variable.c:1877
VALUE rb_to_int(VALUE)
Definition: object.c:2412
volatile VALUE tmp
Definition: tcltklib.c:10209
static VALUE rb_obj_ivar_defined(VALUE obj, VALUE iv)
Definition: object.c:2178
static VALUE nil_to_h(VALUE obj)
Definition: object.c:1090
#define ROBJECT_EMBED
ssize_t n
Definition: bigdecimal.c:5655
static VALUE rb_mod_attr_accessor(int argc, VALUE *argv, VALUE klass)
Definition: object.c:1876
static VALUE rb_mod_cmp(VALUE mod, VALUE arg)
Definition: object.c:1556
RUBY_EXTERN VALUE rb_cBasicObject
Definition: ripper.y:1425
VALUE rb_mod_include_p(VALUE mod, VALUE mod2)
Definition: class.c:890
static int rb_special_const_p(VALUE obj)
Definition: ripper.y:1560
VALUE rb_any_to_s(VALUE)
Definition: object.c:384
int rb_eql(VALUE, VALUE)
Definition: object.c:67
#define FALSE
Definition: nkf.h:174
void rb_check_inheritable(VALUE super)
Ensures a class can be derived from super.
Definition: class.c:95
VALUE(* rb_alloc_func_t)(VALUE)
Definition: ripper.y:352
int rb_is_class_name(VALUE name)
Definition: ripper.c:16243
RUBY_EXTERN VALUE rb_cNilClass
Definition: ripper.y:1447
RUBY_EXTERN VALUE rb_cModule
Definition: ripper.y:1445
#define OBJ_INFECT(x, s)
VALUE rb_class_new_instance(int, VALUE *, VALUE)
Definition: object.c:1756
const char * rb_obj_classname(VALUE)
Definition: variable.c:391
VALUE rb_obj_private_methods(int argc, VALUE *argv, VALUE obj)
Definition: class.c:1190
Win32OLEIDispatch * p
Definition: win32ole.c:786
static VALUE rb_convert_to_integer(VALUE val, int base)
Definition: object.c:2424
#define FL_TEST(x, f)
int st_lookup(st_table *, st_data_t, st_data_t *)
#define rb_check_trusted(obj)
VALUE rb_sym_to_s(VALUE)
Definition: string.c:7898
#define FL_EXIVAR
#define DBL_DIG
Definition: numeric.c:59
st_table * st_init_numtable(void)
Definition: st.c:272
VALUE rb_class_private_instance_methods(int argc, VALUE *argv, VALUE mod)
Definition: class.c:1105
#define T_ICLASS
double rb_cstr_to_dbl(const char *, int)
Definition: object.c:2516
#define rb_usascii_str_new2
void rb_secure(int)
Definition: safe.c:79
static ID id_eql
Definition: object.c:38
VALUE rb_const_get(VALUE, ID)
Definition: variable.c:1871
VALUE rb_obj_remove_instance_variable(VALUE, VALUE)
Definition: variable.c:1395
void rb_define_global_const(const char *, VALUE)
Definition: variable.c:2211
ssize_t i
Definition: bigdecimal.c:5655
static VALUE rb_mod_ge(VALUE mod, VALUE arg)
Definition: object.c:1516
#define rb_check_frozen(obj)
static VALUE rb_mod_cvar_set(VALUE obj, VALUE iv, VALUE val)
Definition: object.c:2252
VALUE rb_mod_ancestors(VALUE mod)
Definition: class.c:920
VALUE rb_str_subseq(VALUE, long, long)
Definition: string.c:1668
VALUE rb_refinement_module_get_refined_class(VALUE module)
Definition: eval.c:1129
#define ROBJECT_EMBED_LEN_MAX
#define RFLOAT_VALUE(v)
static VALUE rb_mod_lt(VALUE mod, VALUE arg)
Definition: object.c:1496
int ret
Definition: tcltklib.c:280
VALUE rb_iv_get(VALUE, const char *)
Definition: variable.c:2578
void rb_define_private_method(VALUE klass, const char *name, VALUE(*func)(ANYARGS), int argc)
Definition: class.c:1352
#define RCLASS_ORIGIN(c)
Real * a
Definition: bigdecimal.c:1182
VALUE rb_obj_freeze(VALUE)
Definition: object.c:971
VALUE rb_eTypeError
Definition: error.c:511
#define OBJ_FREEZE(x)
VALUE rb_obj_dup(VALUE)
Definition: object.c:338
void rb_define_alloc_func(VALUE, rb_alloc_func_t)
VALUE rb_obj_tap(VALUE obj)
Definition: object.c:613
VALUE rb_mod_remove_cvar(VALUE, VALUE)
Definition: variable.c:2544
#define OBJ_TAINTED(x)
#define UNREACHABLE
Definition: ruby.h:40
static VALUE rb_mod_attr_reader(int argc, VALUE *argv, VALUE klass)
Definition: object.c:1820
VALUE enc
Definition: tcltklib.c:10311
#define QUOTE_ID(id)
gz path
Definition: zlib.c:2277
static void init_copy(VALUE dest, VALUE obj)
Definition: object.c:223
static VALUE false_and(VALUE obj, VALUE obj2)
Definition: object.c:1219
#define TYPE(x)
RUBY_EXTERN VALUE rb_cTrueClass
Definition: ripper.y:1461
#define RUBY_DTRACE_OBJECT_CREATE_ENABLED()
Definition: probes.h:51
VALUE rb_mod_init_copy(VALUE clone, VALUE orig)
Definition: class.c:196
#define ROBJECT(obj)
static VALUE nil_inspect(VALUE obj)
Definition: object.c:1103
#define RSTRING_PTR(str)
#define CLASS_OF(v)
NIL_P(eventloop_thread)
Definition: tcltklib.c:4068
#define ROBJECT_IVPTR(o)
static VALUE rb_mod_attr_writer(int argc, VALUE *argv, VALUE klass)
Definition: object.c:1850
void rb_gc_copy_finalizer(VALUE, VALUE)
Definition: gc.c:1349
#define T_ARRAY
static ID id_match
Definition: object.c:38
VALUE rb_obj_tainted(VALUE)
Definition: object.c:843
static VALUE rb_obj_ivar_get(VALUE obj, VALUE iv)
Definition: object.c:2107
void Init_class_hierarchy(void)
Definition: class.c:401
#define xfree
VALUE rb_funcall(VALUE, ID, int,...)
Calls a method.
Definition: vm_eval.c:774
void rb_raise(VALUE exc, const char *fmt,...)
Definition: error.c:1780
return Qtrue
Definition: tcltklib.c:9610
VALUE rb_obj_class(VALUE)
Definition: object.c:194
VALUE rb_obj_id(VALUE)
Definition: gc.c:1688
static struct conv_method_tbl conv_method_names[]
VALUE rb_class_name(VALUE)
Definition: variable.c:378
static VALUE rb_obj_cmp(VALUE obj1, VALUE obj2)
Definition: object.c:1337
int index
Definition: tcltklib.c:4478
VALUE rb_cvar_defined(VALUE, ID)
Definition: variable.c:2384
VALUE rb_ary_new3(long n,...)
Definition: array.c:432
VALUE rb_mod_name(VALUE)
Definition: variable.c:205
VALUE rb_eSecurityError
Definition: error.c:520
#define T_NIL
VALUE rb_obj_untrusted(VALUE)
Definition: object.c:897
void rb_include_module(VALUE klass, VALUE module)
Definition: class.c:695
static VALUE rb_obj_match(VALUE obj1, VALUE obj2)
Definition: object.c:1298
static VALUE rb_mod_const_get(int argc, VALUE *argv, VALUE mod)
Definition: object.c:1921
r
Definition: bigdecimal.c:1196
#define FL_UNTRUSTED
double rb_big2dbl(VALUE x)
Definition: bignum.c:1429
void rb_define_global_function(const char *name, VALUE(*func)(ANYARGS), int argc)
Defines a global function.
Definition: class.c:1522
#define ISDIGIT(c)
ID rb_check_id(volatile VALUE *namep)
Returns ID for the given name if it is interned already, or 0.
Definition: ripper.c:16162
ID rb_check_id_cstr(const char *ptr, long len, rb_encoding *enc)
Definition: ripper.c:16209
#define T_FLOAT
static VALUE nil_to_i(VALUE obj)
Definition: object.c:1028
void rb_undef_method(VALUE klass, const char *name)
Definition: class.c:1358
#define T_OBJECT
VALUE rb_str_append(VALUE, VALUE)
Definition: string.c:2114
static VALUE rb_obj_not_match(VALUE obj1, VALUE obj2)
Definition: object.c:1312
VALUE rb_Hash(VALUE)
Definition: object.c:2778
static VALUE rb_obj_dummy(void)
Definition: object.c:830
VALUE rb_f_sprintf(int, const VALUE *)
Definition: sprintf.c:433
VALUE rb_ivar_get(VALUE, ID)
Definition: variable.c:1111
VALUE rb_equal(VALUE, VALUE)
Definition: object.c:56
VALUE rb_str_concat(VALUE, VALUE)
Definition: string.c:2155
int rb_enc_symname2_p(const char *name, long len, rb_encoding *enc)
Definition: ripper.c:15804
d
Definition: strlcat.c:58
void rb_name_error_str(VALUE str, const char *fmt,...)
Definition: error.c:914
#define OutOfRange()
void rb_copy_generic_ivar(VALUE, VALUE)
Definition: variable.c:1042
VALUE rb_cvar_get(VALUE, ID)
Definition: variable.c:2357
void rb_name_error(ID id, const char *fmt,...)
Definition: error.c:899
static VALUE rb_f_array(VALUE obj, VALUE arg)
Definition: object.c:2772
st_index_t rb_hash_start(st_index_t)
Definition: random.c:1416
static VALUE rb_mod_cvar_get(VALUE obj, VALUE iv)
Definition: object.c:2213
unsigned long st_data_t
Definition: ripper.y:35
#define strtod(s, e)
Definition: util.h:76
VALUE rb_usascii_str_new(const char *, long)
Definition: string.c:431
VALUE rb_singleton_class(VALUE obj)
Returns the singleton class of obj.
Definition: class.c:1466
int rb_is_const_id(ID id)
Definition: ripper.c:16109
int rb_is_instance_id(ID id)
Definition: ripper.c:16127
VALUE rb_eNameError
Definition: error.c:516
#define FL_FINALIZE
VALUE rb_check_to_float(VALUE)
Definition: object.c:2687
static VALUE true_or(VALUE obj, VALUE obj2)
Definition: object.c:1163
VALUE rb_obj_not(VALUE obj)
Definition: object.c:151
rb_encoding * rb_default_external_encoding(void)
Definition: encoding.c:1286
VALUE rb_obj_is_instance_of(VALUE, VALUE)
Definition: object.c:545
static VALUE false_or(VALUE obj, VALUE obj2)
Definition: object.c:1235
static ID id_inspect
Definition: object.c:38
VALUE rb_class_inherited(VALUE super, VALUE klass)
Calls Class::inherited.
Definition: class.c:473
static VALUE rb_to_integer(VALUE val, const char *method)
Definition: object.c:2382
BDIGIT m
Definition: bigdecimal.c:5085
VALUE rb_obj_untrust(VALUE)
Definition: object.c:912
#define FIXNUM_P(f)
return Qfalse
Definition: tcltklib.c:6779
VALUE rb_Float(VALUE)
Definition: object.c:2628
VALUE rb_dbl2big(double d)
Definition: bignum.c:1353
int rb_block_given_p(void)
Definition: eval.c:672
static VALUE rb_class_allocate_instance(VALUE klass)
Definition: object.c:1737
static VALUE rb_f_hash(VALUE obj, VALUE arg)
Definition: object.c:2807
#define RARRAY_LEN(a)
#define Qnil
Definition: tcltklib.c:1896
static VALUE nil_to_f(VALUE obj)
Definition: object.c:1043
#define val
Definition: tcltklib.c:1949
static VALUE rb_true(VALUE obj)
Definition: object.c:1267
VALUE rb_str_to_inum(VALUE str, int base, int badcheck)
Definition: bignum.c:777
#define RCLASS_IV_TBL(c)
RUBY_EXTERN VALUE rb_mKernel
Definition: ripper.y:1414
static VALUE char * str
Definition: tcltklib.c:3547
VALUE rb_mod_attr(int argc, VALUE *argv, VALUE klass)
Definition: object.c:1831
static VALUE rb_mod_freeze(VALUE mod)
Definition: object.c:1426
#define Check_Type(v, t)
int flags
Definition: tcltklib.c:3023
unsigned long ID
Definition: ripper.y:105
VALUE rb_mod_private_constant(int argc, VALUE *argv, VALUE obj)
Definition: variable.c:2264
#define RCLASS_SUPER(c)
VALUE rb_str_cat2(VALUE, const char *)
Definition: string.c:1975
VALUE rb_define_class(const char *name, VALUE super)
Defines a top-level class.
Definition: class.c:499
static VALUE VALUE obj
Definition: tcltklib.c:3158
#define RSTRING_LEN(str)
#define INT2FIX(i)
VALUE rb_check_to_integer(VALUE, const char *)
Definition: object.c:2398
static VALUE rb_obj_singleton_class(VALUE obj)
Definition: object.c:217
VALUE rb_mod_class_variables(int, VALUE *, VALUE)
Definition: variable.c:2503
#define FIX2LONG(x)
#define FIXNUM_MIN
static VALUE rb_class_initialize(int argc, VALUE *argv, VALUE klass)
Definition: object.c:1654
#define T_STRING
double rb_num2dbl(VALUE)
Definition: object.c:2697
volatile ID method
Definition: tcltklib.c:3599
double rb_str_to_dbl(VALUE, int)
Definition: object.c:2600
#define rb_sourcefile()
Definition: tcltklib.c:97
#define rb_hash_end(h)
static VALUE false_xor(VALUE obj, VALUE obj2)
Definition: object.c:1254
VALUE rb_check_hash_type(VALUE)
Definition: hash.c:461
#define ISUPPER(c)
Definition: ruby.h:1633
unsigned char buf[MIME_BUF_SIZE]
Definition: nkf.c:4308
VALUE rb_obj_protected_methods(int argc, VALUE *argv, VALUE obj)
Definition: class.c:1175
VALUE rb_eEncCompatError
Definition: error.c:518
#define DBL2NUM(dbl)
VALUE rb_check_funcall(VALUE, ID, int, VALUE *)
Definition: vm_eval.c:408
static VALUE rb_f_float(VALUE obj, VALUE arg)
Definition: object.c:2667
VALUE rb_str_dup(VALUE)
Definition: string.c:946
VALUE rb_obj_as_string(VALUE)
Definition: string.c:895
RUBY_EXTERN VALUE rb_cInteger
Definition: ripper.y:1441
VALUE * argv
Definition: tcltklib.c:1971
void rb_define_alias(VALUE klass, const char *name1, const char *name2)
Defines an alias of a method.
Definition: class.c:1535
VALUE rb_yield(VALUE)
Definition: vm_eval.c:934
static VALUE rb_mod_eqq(VALUE mod, VALUE arg)
Definition: object.c:1443
static VALUE rb_mod_initialize(VALUE module)
Definition: object.c:1615
#define RTEST(v)
const int id
Definition: nkf.c:209
VALUE rb_obj_clone(VALUE)
Definition: object.c:296
int errno
#define TRUE
Definition: nkf.h:175
q result
Definition: tcltklib.c:7070
static ID id_init_clone
Definition: object.c:39
VALUE rb_obj_hash(VALUE obj)
Definition: object.c:129
VALUE rb_sprintf(const char *format,...)
Definition: sprintf.c:1270
volatile VALUE value
Definition: tcltklib.c:9442
#define StringValue(v)
static VALUE true_to_s(VALUE obj)
Definition: object.c:1126
int rb_const_defined(VALUE, ID)
Definition: variable.c:2098
register char * s
Definition: os2.c:56
#define CONST_ID(var, str)
#define QUOTE(str)
VALUE rb_String(VALUE)
Definition: object.c:2719
VALUE rb_class_inherited_p(VALUE, VALUE)
Definition: object.c:1461
int rb_scan_args(int argc, const VALUE *argv, const char *fmt,...)
Definition: class.c:1566
void rb_attr(VALUE, ID, int, int, int)
Definition: vm_method.c:791
void rb_const_set(VALUE, ID, VALUE)
Definition: variable.c:2136
#define OBJ_FROZEN(x)
VALUE rb_mod_public_constant(int argc, VALUE *argv, VALUE obj)
Definition: variable.c:2278
int type
Definition: tcltklib.c:111
#define FL_TAINT
static ID id_init_dup
Definition: object.c:39
VALUE rb_obj_public_methods(int argc, VALUE *argv, VALUE obj)
Definition: class.c:1205
#define T_FIXNUM
VALUE rb_obj_untaint(VALUE)
Definition: object.c:879
int argc
Definition: tcltklib.c:1970
#define FL_FREEZE
static VALUE nil_to_s(VALUE obj)
Definition: object.c:1056
VALUE rb_obj_trust(VALUE)
Definition: object.c:931
int rb_const_defined_at(VALUE, ID)
Definition: variable.c:2104
VALUE rb_obj_frozen_p(VALUE)
Definition: object.c:1000
#define bad(x)
Definition: _sdbm.c:125
void rb_undef_alloc_func(VALUE)
Definition: vm_method.c:482
VALUE rb_make_metaclass(VALUE obj, VALUE unused)
Definition: class.c:430
VALUE rb_attr_get(VALUE, ID)
Definition: variable.c:1117
int rb_sourceline(void)
Definition: vm.c:816
#define IMPLICIT_CONVERSIONS
Definition: object.c:2314
return ptr
Definition: tcltklib.c:784
VALUE rb_mod_constants(int, VALUE *, VALUE)
Definition: variable.c:2041
VpDivd * c
Definition: bigdecimal.c:1205
void Init_Object(void)
Initializes the world of objects and classes.
Definition: object.c:2968
VALUE rb_class_instance_methods(int argc, VALUE *argv, VALUE mod)
Definition: class.c:1067
VALUE rb_ivar_defined(VALUE, ID)
Definition: variable.c:1199
void rb_free_const_table(st_table *tbl)
Definition: gc.c:814
#define ALLOCV(v, n)
#define T_BIGNUM
static VALUE rb_obj_ivar_set(VALUE obj, VALUE iv, VALUE val)
Definition: object.c:2148
#define RCLASS_CONST_TBL(c)
#define MEMCPY(p1, p2, type, n)
gz end
Definition: zlib.c:2270
ID rb_to_id(VALUE)
Definition: string.c:8146
VALUE rb_obj_taint(VALUE)
Definition: object.c:860
static VALUE true_xor(VALUE obj, VALUE obj2)
Definition: object.c:1179
#define recur(fmt)
VALUE rb_obj_equal(VALUE obj1, VALUE obj2)
Definition: object.c:109
int rb_is_const_name(VALUE name)
Definition: ripper.c:16237
const char * rb_class2name(VALUE)
Definition: variable.c:384
VALUE rb_ivar_set(VALUE, ID, VALUE)
Definition: variable.c:1123
VALUE rb_obj_init_copy(VALUE, VALUE)
Definition: object.c:354
arg
Definition: ripper.y:1312
VALUE rb_class_protected_instance_methods(int argc, VALUE *argv, VALUE mod)
Definition: class.c:1082
VALUE rb_Integer(VALUE)
Definition: object.c:2469
#define NEWOBJ_OF(obj, type, klass, flags)
rb_encoding * rb_enc_get(VALUE obj)
Definition: encoding.c:770
const char * method
Definition: object.c:2300
VALUE rb_class_public_instance_methods(int argc, VALUE *argv, VALUE mod)
Definition: class.c:1120
void rb_singleton_class_attached(VALUE klass, VALUE obj)
Attach a object to a singleton class.
Definition: class.c:289
#define NUM2LONG(x)
#define SYMBOL_P(x)
VALUE rb_check_to_int(VALUE)
Definition: object.c:2418
#define FL_SINGLETON
void rb_cvar_set(VALUE, ID, VALUE)
Definition: variable.c:2324
VALUE rb_module_new(void)
Definition: class.c:596
#define Qundef
VALUE rb_obj_is_kind_of(VALUE, VALUE)
Definition: object.c:582
int rb_method_basic_definition_p(VALUE, ID)
Definition: vm_method.c:1491
#define T_CLASS
static VALUE convert_type(VALUE val, const char *tname, const char *method, int raise)
Definition: object.c:2317
int rb_enc_str_asciionly_p(VALUE)
Definition: string.c:340
VALUE rb_obj_singleton_methods(int argc, VALUE *argv, VALUE obj)
Definition: class.c:1244
static VALUE true_and(VALUE obj, VALUE obj2)
Definition: object.c:1141
VALUE rb_mod_remove_const(VALUE, VALUE)
Definition: variable.c:1911
VALUE rb_check_array_type(VALUE ary)
Definition: array.c:557
static VALUE rb_f_string(VALUE obj, VALUE arg)
Definition: object.c:2741
static VALUE rb_obj_inspect(VALUE obj)
Definition: object.c:496
RUBY_EXTERN VALUE rb_cClass
Definition: ripper.y:1430
static VALUE nil_to_a(VALUE obj)
Definition: object.c:1073
VALUE rb_mod_const_missing(VALUE, VALUE)
Definition: variable.c:1513
RUBY_EXTERN VALUE rb_cObject
Definition: ripper.y:1426
st_data_t st_index_t
Definition: ripper.y:63
#define ALLOC_N(type, n)
#define LONG2FIX(i)
#define RBASIC(obj)
VALUE rb_obj_init_dup_clone(VALUE obj, VALUE orig)
Definition: object.c:367
klass
Definition: tcltklib.c:3504
VALUE rb_obj_methods(int argc, VALUE *argv, VALUE obj)
Definition: class.c:1147
rb_alloc_func_t rb_get_alloc_func(VALUE)
Definition: vm_method.c:488
static VALUE inspect_obj(VALUE obj, VALUE str, int recur)
Definition: object.c:446
int st_insert(st_table *, st_data_t, st_data_t)
static VALUE rb_mod_cvar_defined(VALUE obj, VALUE iv)
Definition: object.c:2279
VALUE rb_exec_recursive(VALUE(*)(VALUE, VALUE, int), VALUE, VALUE)
Definition: thread.c:4857
static VALUE rb_class_s_alloc(VALUE klass)
Definition: object.c:1583
static VALUE rb_mod_to_s(VALUE klass)
Definition: object.c:1382
VALUE rb_ary_new2(long capa)
Definition: array.c:417
#define OBJ_UNTRUST(x)
int rb_is_class_id(ID id)
Definition: ripper.c:16115
static VALUE rb_mod_const_set(VALUE mod, VALUE name, VALUE value)
Definition: object.c:2030
#define rb_safe_level()
Definition: tcltklib.c:94
static ID id_eq
Definition: object.c:38
#define T_MODULE
static int inspect_i(st_data_t k, st_data_t v, st_data_t a)
Definition: object.c:417
static VALUE rb_mod_const_defined(int argc, VALUE *argv, VALUE mod)
Definition: object.c:2058
#define rb_enc_asciicompat(enc)
#define NUM2INT(x)
VALUE rb_hash_new(void)
Definition: hash.c:234
int rb_is_instance_name(VALUE name)
Definition: ripper.c:16255
VALUE rb_obj_alloc(VALUE)
Definition: object.c:1702
const char * rb_id2name(ID id)
Definition: ripper.c:16068
VALUE rb_obj_not_equal(VALUE obj1, VALUE obj2)
Definition: object.c:164
VALUE rb_mod_included_modules(VALUE mod)
Definition: class.c:854
#define BUILTIN_TYPE(x)
VALUE rb_class_real(VALUE)
Definition: object.c:171
#define PRIsVALUE
#define OBJ_UNTRUSTED(x)
static VALUE rb_false(VALUE obj)
Definition: object.c:1282
BDIGIT e
Definition: bigdecimal.c:5085
unsigned long VALUE
Definition: ripper.y:104
st_index_t rb_ivar_count(VALUE)
Definition: variable.c:1294
static VALUE rb_f_integer(int argc, VALUE *argv, VALUE obj)
Definition: object.c:2497
void rb_warning(const char *fmt,...)
Definition: error.c:229
VALUE rb_class_get_superclass(VALUE)
Definition: object.c:1804
VALUE rb_to_float(VALUE)
Definition: object.c:2673
ID rb_intern3(const char *name, long len, rb_encoding *enc)
Definition: ripper.c:15856
st_table * st_copy(st_table *)
Definition: st.c:658
static VALUE false_to_s(VALUE obj)
Definition: object.c:1203
#define SPECIAL_CONST_P(x)
#define OBJ_TAINT(x)
VALUE rb_define_module(const char *name)
Definition: class.c:617
RUBY_EXTERN VALUE rb_cFalseClass
Definition: ripper.y:1434
#define rb_intern(str)
BDIGIT v
Definition: bigdecimal.c:5656
static VALUE rb_mod_gt(VALUE mod, VALUE arg)
Definition: object.c:1537
void rb_ivar_foreach(VALUE, int(*)(ANYARGS), st_data_t)
Definition: variable.c:1266
#define mod(x, y)
Definition: date_strftime.c:28
RUBY_EXTERN VALUE rb_cData
Definition: ripper.y:1433
#define RCLASS_M_TBL(c)
static st_table * immediate_frozen_tbl
Definition: object.c:947
static VALUE class_or_module_required(VALUE c)
Definition: object.c:511
#define NULL
Definition: _sdbm.c:103
q
Definition: tcltklib.c:2968
#define T_DATA
const char * name
Definition: nkf.c:208
VALUE rb_check_string_type(VALUE)
Definition: string.c:1508
void rb_obj_call_init(VALUE obj, int argc, VALUE *argv)
Definition: eval.c:1227
void rb_define_method(VALUE klass, const char *name, VALUE(*func)(ANYARGS), int argc)
Definition: class.c:1340
void rb_invalid_str(const char *str, const char *type)
Definition: error.c:1139
VALUE rb_class_boot(VALUE super)
A utility function that wraps class_alloc.
Definition: class.c:76
#define rb_obj_instance_variables(object)
Definition: generator.h:21
VALUE rb_eArgError
Definition: error.c:512
RUBY_EXTERN VALUE rb_cNumeric
Definition: ripper.y:1448
static ID cmp
Definition: compar.c:16
VALUE rb_convert_type(VALUE, int, const char *, const char *)
Definition: object.c:2349
VALUE rb_check_convert_type(VALUE, int, const char *, const char *)
Definition: object.c:2364
#define T_MASK
Definition: md5.c:131
#define RUBY_DTRACE_OBJECT_CREATE(arg0, arg1, arg2)
Definition: probes.h:52
void st_free_table(st_table *)
Definition: st.c:334
VALUE rb_mod_module_exec(int, VALUE *, VALUE)
Definition: vm_eval.c:1692
VALUE rb_class_superclass(VALUE)
Definition: object.c:1786
#define FL_UNSET(x, f)
#define ISSPACE(c)
Definition: ruby.h:1632
VALUE rb_singleton_class_clone_and_attach(VALUE obj, VALUE attach)
Definition: class.c:247
static ID id_const_missing
Definition: object.c:40
VALUE rb_inspect(VALUE)
Definition: object.c:402
void rb_obj_infect(VALUE, VALUE)
Definition: object.c:942
#define ALLOCV_END(v)
static VALUE rb_module_s_alloc(VALUE klass)
Definition: object.c:1574
#define CLASS_OR_MODULE_P(obj)
Definition: object.c:42
VALUE rb_Array(VALUE)
Definition: object.c:2747
static ID id_init_copy
Definition: object.c:39
size_t len
Definition: tcltklib.c:3568