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ruby/object.c

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/**********************************************************************
object.c -
$Author$
$Date$
created at: Thu Jul 15 12:01:24 JST 1993
Copyright (C) 1993-2000 Yukihiro Matsumoto
Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
Copyright (C) 2000 Information-technology Promotion Agency, Japan
**********************************************************************/
#include "ruby.h"
#include "st.h"
#include <stdio.h>
VALUE rb_mKernel;
VALUE rb_cObject;
VALUE rb_cModule;
VALUE rb_cClass;
VALUE rb_cData;
VALUE rb_cNilClass;
VALUE rb_cTrueClass;
VALUE rb_cFalseClass;
VALUE rb_cSymbol;
VALUE rb_f_sprintf();
VALUE rb_obj_alloc();
static ID eq, eql;
static ID inspect;
static ID clone;
VALUE
rb_equal(obj1, obj2)
VALUE obj1, obj2;
{
VALUE result;
if (obj1 == obj2) return Qtrue;
result = rb_funcall(obj1, eq, 1, obj2);
if (RTEST(result)) return Qtrue;
return Qfalse;
}
int
rb_eql(obj1, obj2)
VALUE obj1, obj2;
{
return RTEST(rb_funcall(obj1, eql, 1, obj2));
}
static VALUE
rb_obj_equal(obj1, obj2)
VALUE obj1, obj2;
{
if (obj1 == obj2) return Qtrue;
return Qfalse;
}
VALUE
rb_obj_id(obj)
VALUE obj;
{
if (SPECIAL_CONST_P(obj)) {
return INT2NUM((long)obj);
}
return (VALUE)((long)obj|FIXNUM_FLAG);
}
static VALUE
rb_obj_type(obj)
VALUE obj;
{
VALUE cl = CLASS_OF(obj);
while (FL_TEST(cl, FL_SINGLETON) || TYPE(cl) == T_ICLASS) {
cl = RCLASS(cl)->super;
}
return cl;
}
VALUE
rb_obj_clone(obj)
VALUE obj;
{
VALUE clone;
if (TYPE(obj) != T_OBJECT) {
rb_raise(rb_eTypeError, "can't clone %s", rb_class2name(CLASS_OF(obj)));
}
clone = rb_obj_alloc(RBASIC(obj)->klass);
CLONESETUP(clone,obj);
if (ROBJECT(obj)->iv_tbl) {
ROBJECT(clone)->iv_tbl = st_copy(ROBJECT(obj)->iv_tbl);
}
return clone;
}
VALUE
rb_obj_dup(obj)
VALUE obj;
{
VALUE dup;
dup = rb_funcall(obj, clone, 0, 0);
if (TYPE(dup) != TYPE(obj)) {
rb_raise(rb_eTypeError, "dupulicated object must be same type");
}
if (!SPECIAL_CONST_P(dup)) {
OBJSETUP(dup, rb_obj_type(obj), BUILTIN_TYPE(obj));
OBJ_INFECT(dup, obj);
}
return dup;
}
static VALUE
rb_any_to_a(obj)
VALUE obj;
{
return rb_ary_new3(1, obj);
}
VALUE
rb_any_to_s(obj)
VALUE obj;
{
char *s;
char *cname = rb_class2name(CLASS_OF(obj));
VALUE str;
s = ALLOCA_N(char, strlen(cname)+6+16+1); /* 6:tags 16:addr 1:eos */
sprintf(s, "#<%s:0x%lx>", cname, obj);
str = rb_str_new2(s);
if (OBJ_TAINTED(obj)) OBJ_TAINT(str);
return str;
}
VALUE
rb_inspect(obj)
VALUE obj;
{
return rb_obj_as_string(rb_funcall(obj, inspect, 0, 0));
}
static int
inspect_i(id, value, str)
ID id;
VALUE value;
VALUE str;
{
VALUE str2;
char *ivname;
/* need not to show internal data */
if (CLASS_OF(value) == 0) return ST_CONTINUE;
if (!rb_is_instance_id(id)) return ST_CONTINUE;
if (RSTRING(str)->ptr[0] == '-') { /* first element */
RSTRING(str)->ptr[0] = '#';
}
else {
rb_str_cat2(str, ", ");
}
ivname = rb_id2name(id);
rb_str_cat2(str, ivname);
rb_str_cat2(str, "=");
str2 = rb_inspect(value);
rb_str_append(str, str2);
OBJ_INFECT(str, str2);
return ST_CONTINUE;
}
static VALUE
inspect_obj(obj, str)
VALUE obj, str;
{
st_foreach(ROBJECT(obj)->iv_tbl, inspect_i, str);
rb_str_cat2(str, ">");
OBJ_INFECT(str, obj);
return str;
}
static VALUE
rb_obj_inspect(obj)
VALUE obj;
{
if (TYPE(obj) == T_OBJECT
&& ROBJECT(obj)->iv_tbl
&& ROBJECT(obj)->iv_tbl->num_entries > 0) {
VALUE str;
char *c, *b;
c = rb_class2name(CLASS_OF(obj));
if (rb_inspecting_p(obj)) {
b = ALLOCA_N(char, strlen(c)+8+16+1); /* 8:tags 16:addr 1:eos */
sprintf(b, "#<%s:0x%lx ...>", c, obj);
return rb_str_new2(b);
}
b = ALLOCA_N(char, strlen(c)+4+16+1); /* 4:tags 16:addr 1:eos */
sprintf(b, "-<%s:0x%lx ", c, obj);
str = rb_str_new2(b);
return rb_protect_inspect(inspect_obj, obj, str);
}
return rb_funcall(obj, rb_intern("to_s"), 0, 0);
}
VALUE
rb_obj_is_instance_of(obj, c)
VALUE obj, c;
{
switch (TYPE(c)) {
case T_MODULE:
case T_CLASS:
case T_ICLASS:
break;
case T_NIL:
if (NIL_P(obj)) return Qtrue;
return Qfalse;
case T_FALSE:
if (obj) return Qfalse;
return Qtrue;
case T_TRUE:
if (obj) return Qtrue;
return Qfalse;
default:
rb_raise(rb_eTypeError, "class or module required");
}
if (rb_obj_type(obj) == c) return Qtrue;
return Qfalse;
}
VALUE
rb_obj_is_kind_of(obj, c)
VALUE obj, c;
{
VALUE cl = CLASS_OF(obj);
switch (TYPE(c)) {
case T_MODULE:
case T_CLASS:
case T_ICLASS:
break;
default:
rb_raise(rb_eTypeError, "class or module required");
}
while (cl) {
if (cl == c || RCLASS(cl)->m_tbl == RCLASS(c)->m_tbl)
return Qtrue;
cl = RCLASS(cl)->super;
}
return Qfalse;
}
static VALUE
rb_obj_dummy()
{
return Qnil;
}
VALUE
rb_obj_tainted(obj)
VALUE obj;
{
if (OBJ_TAINTED(obj))
return Qtrue;
return Qfalse;
}
VALUE
rb_obj_taint(obj)
VALUE obj;
{
rb_secure(4);
OBJ_TAINT(obj);
return obj;
}
VALUE
rb_obj_untaint(obj)
VALUE obj;
{
rb_secure(3);
FL_UNSET(obj, FL_TAINT);
return obj;
}
VALUE
rb_obj_freeze(obj)
VALUE obj;
{
if (rb_safe_level() >= 4 && !OBJ_TAINTED(obj))
rb_raise(rb_eSecurityError, "Insecure: can't freeze object");
OBJ_FREEZE(obj);
return obj;
}
static VALUE
rb_obj_frozen_p(obj)
VALUE obj;
{
if (OBJ_FROZEN(obj)) return Qtrue;
return Qfalse;
}
static VALUE
nil_to_i(obj)
VALUE obj;
{
return INT2FIX(0);
}
static VALUE
nil_to_s(obj)
VALUE obj;
{
return rb_str_new2("");
}
static VALUE
nil_to_a(obj)
VALUE obj;
{
return rb_ary_new2(0);
}
static VALUE
nil_inspect(obj)
VALUE obj;
{
return rb_str_new2("nil");
}
static VALUE
nil_type(obj)
VALUE obj;
{
return rb_cNilClass;
}
#ifdef NIL_PLUS
static VALUE
nil_plus(x, y)
VALUE x, y;
{
switch (TYPE(y)) {
case T_NIL:
case T_FIXNUM:
case T_FLOAT:
case T_BIGNUM:
case T_STRING:
case T_ARRAY:
return y;
default:
rb_raise(rb_eTypeError, "tried to add %s(%s) to nil",
STR2CSTR(rb_inspect(y)),
rb_class2name(CLASS_OF(y)));
}
/* not reached */
}
#endif
static VALUE
main_to_s(obj)
VALUE obj;
{
return rb_str_new2("main");
}
static VALUE
true_to_s(obj)
VALUE obj;
{
return rb_str_new2("true");
}
static VALUE
true_type(obj)
VALUE obj;
{
return rb_cTrueClass;
}
static VALUE
true_and(obj, obj2)
VALUE obj, obj2;
{
return RTEST(obj2)?Qtrue:Qfalse;
}
static VALUE
true_or(obj, obj2)
VALUE obj, obj2;
{
return Qtrue;
}
static VALUE
true_xor(obj, obj2)
VALUE obj, obj2;
{
return RTEST(obj2)?Qfalse:Qtrue;
}
static VALUE
false_to_s(obj)
VALUE obj;
{
return rb_str_new2("false");
}
static VALUE
false_type(obj)
VALUE obj;
{
return rb_cFalseClass;
}
static VALUE
false_and(obj, obj2)
VALUE obj, obj2;
{
return Qfalse;
}
static VALUE
false_or(obj, obj2)
VALUE obj, obj2;
{
return RTEST(obj2)?Qtrue:Qfalse;
}
static VALUE
false_xor(obj, obj2)
VALUE obj, obj2;
{
return RTEST(obj2)?Qtrue:Qfalse;
}
static VALUE
rb_true(obj)
VALUE obj;
{
return Qtrue;
}
static VALUE
rb_false(obj)
VALUE obj;
{
return Qfalse;
}
VALUE
rb_obj_alloc(klass)
VALUE klass;
{
NEWOBJ(obj, struct RObject);
OBJSETUP(obj, klass, T_OBJECT);
obj->iv_tbl = 0;
return (VALUE)obj;
}
static VALUE
sym_type(sym)
VALUE sym;
{
return rb_cSymbol;
}
static VALUE
sym_to_i(sym)
VALUE sym;
{
ID id = SYM2ID(sym);
return INT2FIX(id);
}
static VALUE
sym_inspect(sym)
VALUE sym;
{
char *name, *buf;
name = rb_id2name(SYM2ID(sym));
buf = ALLOCA_N(char, strlen(name)+2);
sprintf(buf, ":%s", name);
return rb_str_new2(buf);
}
static VALUE
sym_to_s(sym)
VALUE sym;
{
return rb_str_new2(rb_id2name(SYM2ID(sym)));
}
static VALUE
rb_mod_clone(module)
VALUE module;
{
NEWOBJ(clone, struct RClass);
CLONESETUP(clone, module);
clone->super = RCLASS(module)->super;
if (RCLASS(module)->iv_tbl) {
clone->iv_tbl = st_copy(RCLASS(module)->iv_tbl);
}
if (RCLASS(module)->m_tbl) {
clone->m_tbl = st_copy(RCLASS(module)->m_tbl);
}
return (VALUE)clone;
}
static VALUE
rb_mod_to_s(klass)
VALUE klass;
{
return rb_str_dup(rb_class_path(klass));
}
static VALUE
rb_mod_eqq(mod, arg)
VALUE mod, arg;
{
return rb_obj_is_kind_of(arg, mod);
}
static VALUE
rb_mod_le(mod, arg)
VALUE mod, arg;
{
switch (TYPE(arg)) {
case T_MODULE:
case T_CLASS:
break;
default:
rb_raise(rb_eTypeError, "compared with non class/module");
}
while (mod) {
if (RCLASS(mod)->m_tbl == RCLASS(arg)->m_tbl)
return Qtrue;
mod = RCLASS(mod)->super;
}
return Qfalse;
}
static VALUE
rb_mod_lt(mod, arg)
VALUE mod, arg;
{
if (mod == arg) return Qfalse;
return rb_mod_le(mod, arg);
}
static VALUE
rb_mod_ge(mod, arg)
VALUE mod, arg;
{
switch (TYPE(arg)) {
case T_MODULE:
case T_CLASS:
break;
default:
rb_raise(rb_eTypeError, "compared with non class/module");
}
return rb_mod_le(arg, mod);
}
static VALUE
rb_mod_gt(mod, arg)
VALUE mod, arg;
{
if (mod == arg) return Qfalse;
return rb_mod_ge(mod, arg);
}
static VALUE
rb_mod_cmp(mod, arg)
VALUE mod, arg;
{
if (mod == arg) return INT2FIX(0);
switch (TYPE(arg)) {
case T_MODULE:
case T_CLASS:
break;
default:
rb_raise(rb_eTypeError, "<=> requires Class or Module (%s given)",
rb_class2name(CLASS_OF(arg)));
break;
}
if (rb_mod_le(mod, arg)) {
return INT2FIX(-1);
}
return INT2FIX(1);
}
static VALUE
rb_mod_initialize(argc, argv)
int argc;
VALUE *argv;
{
return Qnil;
}
static VALUE
rb_module_s_new(klass)
VALUE klass;
{
VALUE mod = rb_module_new();
RBASIC(mod)->klass = klass;
rb_obj_call_init(klass, 0, 0);
return mod;
}
static VALUE
rb_class_s_new(argc, argv)
int argc;
VALUE *argv;
{
VALUE super, klass;
if (rb_scan_args(argc, argv, "01", &super) == 0) {
super = rb_cObject;
}
Check_Type(super, T_CLASS);
if (FL_TEST(super, FL_SINGLETON)) {
rb_raise(rb_eTypeError, "can't make subclass of virtual class");
}
klass = rb_class_new(super);
/* make metaclass */
RBASIC(klass)->klass = rb_singleton_class_new(RBASIC(super)->klass);
rb_singleton_class_attached(RBASIC(klass)->klass, klass);
rb_obj_call_init(klass, argc, argv);
rb_funcall(super, rb_intern("inherited"), 1, klass);
return klass;
}
static VALUE
rb_class_s_inherited()
{
rb_raise(rb_eTypeError, "can't make subclass of Class");
return Qnil; /* dummy */
}
static VALUE
rb_class_superclass(klass)
VALUE klass;
{
VALUE super = RCLASS(klass)->super;
while (TYPE(super) == T_ICLASS) {
super = RCLASS(super)->super;
}
if (!super) {
return Qnil;
}
return super;
}
ID
rb_to_id(name)
VALUE name;
{
ID id;
switch (TYPE(name)) {
case T_STRING:
return rb_intern(RSTRING(name)->ptr);
case T_FIXNUM:
id = FIX2INT(name);
if (!rb_id2name(id)) {
rb_raise(rb_eArgError, "%d is not a symbol", id);
}
break;
case T_SYMBOL:
id = SYM2ID(name);
break;
default:
rb_raise(rb_eTypeError, "%s is not a symbol", STR2CSTR(rb_inspect(name)));
}
return id;
}
static VALUE
rb_mod_attr(argc, argv, klass)
int argc;
VALUE *argv;
VALUE klass;
{
VALUE name, pub;
rb_scan_args(argc, argv, "11", &name, &pub);
rb_attr(klass, rb_to_id(name), 1, RTEST(pub), Qtrue);
return Qnil;
}
static VALUE
rb_mod_attr_reader(argc, argv, klass)
int argc;
VALUE *argv;
VALUE klass;
{
int i;
for (i=0; i<argc; i++) {
rb_attr(klass, rb_to_id(argv[i]), 1, 0, Qtrue);
}
return Qnil;
}
static VALUE
rb_mod_attr_writer(argc, argv, klass)
int argc;
VALUE *argv;
VALUE klass;
{
int i;
for (i=0; i<argc; i++) {
rb_attr(klass, rb_to_id(argv[i]), 0, 1, Qtrue);
}
return Qnil;
}
static VALUE
rb_mod_attr_accessor(argc, argv, klass)
int argc;
VALUE *argv;
VALUE klass;
{
int i;
for (i=0; i<argc; i++) {
rb_attr(klass, rb_to_id(argv[i]), 1, 1, Qtrue);
}
return Qnil;
}
static VALUE
rb_mod_const_get(mod, name)
VALUE mod, name;
{
return rb_const_get(mod, rb_to_id(name));
}
static VALUE
rb_mod_const_set(mod, name, value)
VALUE mod, name, value;
{
rb_const_set(mod, rb_to_id(name), value);
return value;
}
static VALUE
rb_mod_const_defined(mod, name)
VALUE mod, name;
{
return rb_const_defined_at(mod, rb_to_id(name));
}
static VALUE
rb_obj_methods(obj)
VALUE obj;
{
VALUE argv[1];
argv[0] = Qtrue;
return rb_class_instance_methods(1, argv, CLASS_OF(obj));
}
VALUE rb_obj_singleton_methods();
static VALUE
rb_obj_protected_methods(obj)
VALUE obj;
{
VALUE argv[1];
argv[0] = Qtrue;
return rb_class_protected_instance_methods(1, argv, CLASS_OF(obj));
}
static VALUE
rb_obj_private_methods(obj)
VALUE obj;
{
VALUE argv[1];
argv[0] = Qtrue;
return rb_class_private_instance_methods(1, argv, CLASS_OF(obj));
}
struct arg_to {
VALUE val;
const char *s;
};
static VALUE
to_type(arg)
struct arg_to *arg;
{
return rb_funcall(arg->val, rb_intern(arg->s), 0);
}
static VALUE
fail_to_type(arg)
struct arg_to *arg;
{
rb_raise(rb_eTypeError, "failed to convert %s into %s",
NIL_P(arg->val) ? "nil" :
arg->val == Qtrue ? "true" :
arg->val == Qfalse ? "false" :
rb_class2name(CLASS_OF(arg->val)),
arg->s);
return Qnil; /* not reached */
}
VALUE
rb_convert_type(val, type, tname, method)
VALUE val;
int type;
const char *tname, *method;
{
struct arg_to arg1, arg2;
if (TYPE(val) == type) return val;
arg1.val = arg2.val = val;
arg1.s = method;
arg2.s = tname;
val = rb_rescue2(to_type, (VALUE)&arg1, fail_to_type, (VALUE)&arg2,
rb_eStandardError, rb_eNameError, 0);
if (TYPE(val) != type) {
rb_raise(rb_eTypeError, "%s#%s should return %s",
rb_class2name(CLASS_OF(arg1.val)), method, tname);
}
return val;
}
VALUE
rb_Integer(val)
VALUE val;
{
struct arg_to arg1, arg2;
switch (TYPE(val)) {
case T_FLOAT:
if (RFLOAT(val)->value <= (double)FIXNUM_MAX
&& RFLOAT(val)->value >= (double)FIXNUM_MIN) {
break;
}
return rb_dbl2big(RFLOAT(val)->value);
case T_BIGNUM:
return val;
case T_STRING:
return rb_str2inum(val, 0);
case T_FIXNUM:
return val;
default:
break;
}
arg1.val = arg2.val = val;
arg1.s = "to_i";
arg2.s = "Integer";
val = rb_rescue2(to_type, (VALUE)&arg1, fail_to_type, (VALUE)&arg2,
rb_eStandardError, rb_eNameError, 0);
if (!rb_obj_is_kind_of(val, rb_cInteger)) {
rb_raise(rb_eTypeError, "%s#to_i should return Integer",
rb_class2name(CLASS_OF(arg1.val)));
}
return val;
}
static VALUE
rb_f_integer(obj, arg)
VALUE obj, arg;
{
return rb_Integer(arg);
}
VALUE
rb_Float(val)
VALUE val;
{
switch (TYPE(val)) {
case T_FIXNUM:
return rb_float_new((double)FIX2LONG(val));
case T_FLOAT:
return val;
case T_BIGNUM:
return rb_float_new(rb_big2dbl(val));
case T_NIL:
return rb_float_new(0.0);
default:
return rb_convert_type(val, T_FLOAT, "Float", "to_f");
}
}
static VALUE
rb_f_float(obj, arg)
VALUE obj, arg;
{
return rb_Float(arg);
}
double
rb_num2dbl(val)
VALUE val;
{
switch (TYPE(val)) {
case T_FLOAT:
return RFLOAT(val)->value;
case T_STRING:
rb_raise(rb_eTypeError, "no implicit conversion from String");
break;
case T_NIL:
rb_raise(rb_eTypeError, "no implicit conversion from nil");
break;
default:
break;
}
return RFLOAT(rb_Float(val))->value;
}
char*
rb_str2cstr(str, len)
VALUE str;
int *len;
{
if (TYPE(str) != T_STRING) {
str = rb_str_to_str(str);
}
if (len) *len = RSTRING(str)->len;
return RSTRING(str)->ptr;
}
VALUE
rb_String(val)
VALUE val;
{
return rb_convert_type(val, T_STRING, "String", "to_s");
}
static VALUE
rb_f_string(obj, arg)
VALUE obj, arg;
{
return rb_String(arg);
}
VALUE
rb_Array(val)
VALUE val;
{
ID to_ary;
if (TYPE(val) == T_ARRAY) return val;
to_ary = rb_intern("to_ary");
if (rb_respond_to(val, to_ary)) {
val = rb_funcall(val, to_ary, 0);
}
else {
val = rb_funcall(val, rb_intern("to_a"), 0);
}
if (TYPE(val) != T_ARRAY) {
rb_raise(rb_eTypeError, "`to_a' did not return Array");
}
return val;
}
static VALUE
rb_f_array(obj, arg)
VALUE obj, arg;
{
return rb_Array(arg);
}
static VALUE
boot_defclass(name, super)
char *name;
VALUE super;
{
extern st_table *rb_class_tbl;
VALUE obj = rb_class_new(super);
ID id = rb_intern(name);
rb_name_class(obj, id);
st_add_direct(rb_class_tbl, id, obj);
return obj;
}
VALUE ruby_top_self;
void
Init_Object()
{
VALUE metaclass;
rb_cObject = boot_defclass("Object", 0);
rb_cModule = boot_defclass("Module", rb_cObject);
rb_cClass = boot_defclass("Class", rb_cModule);
metaclass = RBASIC(rb_cObject)->klass = rb_singleton_class_new(rb_cClass);
rb_singleton_class_attached(metaclass, rb_cObject);
metaclass = RBASIC(rb_cModule)->klass = rb_singleton_class_new(metaclass);
rb_singleton_class_attached(metaclass, rb_cModule);
metaclass = RBASIC(rb_cClass)->klass = rb_singleton_class_new(metaclass);
rb_singleton_class_attached(metaclass, rb_cClass);
rb_mKernel = rb_define_module("Kernel");
rb_include_module(rb_cObject, rb_mKernel);
rb_define_private_method(rb_cObject, "initialize", rb_obj_dummy, 0);
rb_define_private_method(rb_cClass, "inherited", rb_obj_dummy, 1);
/*
* Ruby's Class Hierarchy Chart
*
* +------------------+
* | |
* Object---->(Object) |
* ^ ^ ^ ^ |
* | | | | |
* | | +-----+ +---------+ |
* | | | | |
* | +-----------+ | |
* | | | | |
* +------+ | Module--->(Module) |
* | | ^ ^ |
* OtherClass-->(OtherClass) | | |
* | | |
* Class---->(Class) |
* ^ |
* | |
* +----------------+
*
* + All metaclasses are instances of the class `Class'.
*/
rb_define_method(rb_mKernel, "nil?", rb_false, 0);
rb_define_method(rb_mKernel, "==", rb_obj_equal, 1);
rb_define_alias(rb_mKernel, "equal?", "==");
rb_define_alias(rb_mKernel, "===", "==");
rb_define_method(rb_mKernel, "=~", rb_false, 1);
rb_define_method(rb_mKernel, "eql?", rb_obj_equal, 1);
rb_define_method(rb_mKernel, "hash", rb_obj_id, 0);
rb_define_method(rb_mKernel, "id", rb_obj_id, 0);
rb_define_method(rb_mKernel, "__id__", rb_obj_id, 0);
rb_define_method(rb_mKernel, "type", rb_obj_type, 0);
rb_define_method(rb_mKernel, "class", rb_obj_type, 0);
rb_define_method(rb_mKernel, "clone", rb_obj_clone, 0);
rb_define_method(rb_mKernel, "dup", rb_obj_dup, 0);
rb_define_method(rb_mKernel, "taint", rb_obj_taint, 0);
rb_define_method(rb_mKernel, "tainted?", rb_obj_tainted, 0);
rb_define_method(rb_mKernel, "untaint", rb_obj_untaint, 0);
rb_define_method(rb_mKernel, "freeze", rb_obj_freeze, 0);
rb_define_method(rb_mKernel, "frozen?", rb_obj_frozen_p, 0);
rb_define_method(rb_mKernel, "to_a", rb_any_to_a, 0);
rb_define_method(rb_mKernel, "to_s", rb_any_to_s, 0);
rb_define_method(rb_mKernel, "inspect", rb_obj_inspect, 0);
rb_define_method(rb_mKernel, "methods", rb_obj_methods, 0);
rb_define_method(rb_mKernel, "public_methods", rb_obj_methods, 0);
rb_define_method(rb_mKernel, "singleton_methods", rb_obj_singleton_methods, 0);
rb_define_method(rb_mKernel, "protected_methods", rb_obj_protected_methods, 0);
rb_define_method(rb_mKernel, "private_methods", rb_obj_private_methods, 0);
rb_define_method(rb_mKernel, "instance_variables", rb_obj_instance_variables, 0);
rb_define_private_method(rb_mKernel, "remove_instance_variable",
rb_obj_remove_instance_variable, 1);
rb_define_method(rb_mKernel, "instance_of?", rb_obj_is_instance_of, 1);
rb_define_method(rb_mKernel, "kind_of?", rb_obj_is_kind_of, 1);
rb_define_method(rb_mKernel, "is_a?", rb_obj_is_kind_of, 1);
rb_define_global_function("singleton_method_added", rb_obj_dummy, 1);
rb_define_global_function("sprintf", rb_f_sprintf, -1);
rb_define_global_function("format", rb_f_sprintf, -1);
rb_define_global_function("Integer", rb_f_integer, 1);
rb_define_global_function("Float", rb_f_float, 1);
rb_define_global_function("String", rb_f_string, 1);
rb_define_global_function("Array", rb_f_array, 1);
rb_cNilClass = rb_define_class("NilClass", rb_cObject);
rb_define_method(rb_cNilClass, "type", nil_type, 0);
rb_define_method(rb_cNilClass, "to_i", nil_to_i, 0);
rb_define_method(rb_cNilClass, "to_s", nil_to_s, 0);
rb_define_method(rb_cNilClass, "to_a", nil_to_a, 0);
rb_define_method(rb_cNilClass, "inspect", nil_inspect, 0);
rb_define_method(rb_cNilClass, "&", false_and, 1);
rb_define_method(rb_cNilClass, "|", false_or, 1);
rb_define_method(rb_cNilClass, "^", false_xor, 1);
rb_define_method(rb_cNilClass, "nil?", rb_true, 0);
rb_undef_method(CLASS_OF(rb_cNilClass), "new");
rb_define_global_const("NIL", Qnil);
rb_cSymbol = rb_define_class("Symbol", rb_cObject);
rb_undef_method(CLASS_OF(rb_cSymbol), "new");
rb_define_method(rb_cSymbol, "type", sym_type, 0);
rb_define_method(rb_cSymbol, "to_i", sym_to_i, 0);
rb_define_method(rb_cSymbol, "inspect", sym_inspect, 0);
rb_define_method(rb_cSymbol, "to_s", sym_to_s, 0);
rb_define_method(rb_cSymbol, "id2name", sym_to_s, 0);
rb_define_method(rb_cModule, "===", rb_mod_eqq, 1);
rb_define_method(rb_cModule, "<=>", rb_mod_cmp, 1);
rb_define_method(rb_cModule, "<", rb_mod_lt, 1);
rb_define_method(rb_cModule, "<=", rb_mod_le, 1);
rb_define_method(rb_cModule, ">", rb_mod_gt, 1);
rb_define_method(rb_cModule, ">=", rb_mod_ge, 1);
rb_define_method(rb_cModule, "clone", rb_mod_clone, 0);
rb_define_method(rb_cModule, "to_s", rb_mod_to_s, 0);
rb_define_method(rb_cModule, "included_modules", rb_mod_included_modules, 0);
rb_define_method(rb_cModule, "name", rb_mod_name, 0);
rb_define_method(rb_cModule, "ancestors", rb_mod_ancestors, 0);
rb_define_private_method(rb_cModule, "attr", rb_mod_attr, -1);
rb_define_private_method(rb_cModule, "attr_reader", rb_mod_attr_reader, -1);
rb_define_private_method(rb_cModule, "attr_writer", rb_mod_attr_writer, -1);
rb_define_private_method(rb_cModule, "attr_accessor", rb_mod_attr_accessor, -1);
rb_define_singleton_method(rb_cModule, "new", rb_module_s_new, 0);
rb_define_method(rb_cModule, "initialize", rb_mod_initialize, -1);
rb_define_method(rb_cModule, "instance_methods", rb_class_instance_methods, -1);
rb_define_method(rb_cModule, "public_instance_methods", rb_class_instance_methods, -1);
rb_define_method(rb_cModule, "protected_instance_methods", rb_class_protected_instance_methods, -1);
rb_define_method(rb_cModule, "private_instance_methods", rb_class_private_instance_methods, -1);
rb_define_method(rb_cModule, "constants", rb_mod_constants, 0);
rb_define_method(rb_cModule, "const_get", rb_mod_const_get, 1);
rb_define_method(rb_cModule, "const_set", rb_mod_const_set, 2);
rb_define_method(rb_cModule, "const_defined?", rb_mod_const_defined, 1);
rb_define_private_method(rb_cModule, "remove_const", rb_mod_remove_const, 1);
rb_define_private_method(rb_cModule, "method_added", rb_obj_dummy, 1);
rb_define_method(rb_cModule, "class_variables", rb_mod_class_variables, 0);
rb_define_method(rb_cClass, "new", rb_class_new_instance, -1);
rb_define_method(rb_cClass, "superclass", rb_class_superclass, 0);
rb_define_singleton_method(rb_cClass, "new", rb_class_s_new, -1);
rb_undef_method(rb_cClass, "extend_object");
rb_undef_method(rb_cClass, "append_features");
rb_define_singleton_method(rb_cClass, "inherited", rb_class_s_inherited, 1);
rb_cData = rb_define_class("Data", rb_cObject);
rb_undef_method(CLASS_OF(rb_cData), "new");
ruby_top_self = rb_obj_alloc(rb_cObject);
rb_global_variable(&ruby_top_self);
rb_define_singleton_method(ruby_top_self, "to_s", main_to_s, 0);
rb_cTrueClass = rb_define_class("TrueClass", rb_cObject);
rb_define_method(rb_cTrueClass, "to_s", true_to_s, 0);
rb_define_method(rb_cTrueClass, "type", true_type, 0);
rb_define_method(rb_cTrueClass, "&", true_and, 1);
rb_define_method(rb_cTrueClass, "|", true_or, 1);
rb_define_method(rb_cTrueClass, "^", true_xor, 1);
rb_undef_method(CLASS_OF(rb_cTrueClass), "new");
rb_define_global_const("TRUE", Qtrue);
rb_cFalseClass = rb_define_class("FalseClass", rb_cObject);
rb_define_method(rb_cFalseClass, "to_s", false_to_s, 0);
rb_define_method(rb_cFalseClass, "type", false_type, 0);
rb_define_method(rb_cFalseClass, "&", false_and, 1);
rb_define_method(rb_cFalseClass, "|", false_or, 1);
rb_define_method(rb_cFalseClass, "^", false_xor, 1);
rb_undef_method(CLASS_OF(rb_cFalseClass), "new");
rb_define_global_const("FALSE", Qfalse);
eq = rb_intern("==");
eql = rb_intern("eql?");
inspect = rb_intern("inspect");
clone = rb_intern("clone");
}
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