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class.c
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class.c
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/*
* MacRuby implementation of Ruby 1.9's class.c.
*
* This file is covered by the Ruby license. See COPYING for more details.
*
* Copyright (C) 2007-2009, Apple Inc. All rights reserved.
* Copyright (C) 1993-2007 Yukihiro Matsumoto
* Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
* Copyright (C) 2000 Information-technology Promotion Agency, Japan
*/
#include "ruby/ruby.h"
#include "ruby/signal.h"
#include "ruby/node.h"
#include "ruby/st.h"
#include <ctype.h>
#include "id.h"
#include "vm.h"
#include "objc.h"
extern st_table *rb_class_tbl;
void rb_objc_install_array_primitives(Class);
void rb_objc_install_hash_primitives(Class);
void rb_objc_install_string_primitives(Class);
void rb_objc_install_set_primitives(Class);
bool
rb_objc_install_primitives(Class ocklass, Class ocsuper)
{
if (rb_cArray != 0 && rb_cHash != 0 && rb_cString != 0 && rb_cSet != 0) {
do {
if (ocsuper == (Class)rb_cRubyArray) {
RCLASS_SET_VERSION_FLAG(ocklass, RCLASS_IS_ARRAY_SUBCLASS);
return false;
}
if (ocsuper == (Class)rb_cArray) {
rb_objc_install_array_primitives(ocklass);
RCLASS_SET_VERSION_FLAG(ocklass, RCLASS_IS_ARRAY_SUBCLASS);
return true;
}
if (ocsuper == (Class)rb_cHash) {
rb_objc_install_hash_primitives(ocklass);
RCLASS_SET_VERSION_FLAG(ocklass, RCLASS_IS_HASH_SUBCLASS);
return true;
}
if (ocsuper == (Class)rb_cString) {
rb_objc_install_string_primitives(ocklass);
RCLASS_SET_VERSION_FLAG(ocklass, RCLASS_IS_STRING_SUBCLASS);
return true;
}
if (ocsuper == (Class)rb_cSet) {
rb_objc_install_set_primitives(ocklass);
RCLASS_SET_VERSION_FLAG(ocklass, RCLASS_IS_SET_SUBCLASS);
return true;
}
ocsuper = class_getSuperclass(ocsuper);
}
while (ocsuper != NULL);
}
return false;
}
static void *
rb_obj_imp_allocWithZone(void *rcv, SEL sel, void *zone)
{
return (void *)rb_robject_allocate_instance((VALUE)rcv);
}
static BOOL
rb_obj_imp_isEqual(void *rcv, SEL sel, void *obj)
{
if (obj == NULL)
return false;
if (*(Class *)rcv == (Class)rb_cFixnum
&& *(Class *)obj == (Class)rb_cFixnum) {
/* XXX check if Numeric#== is not overriden */
return RFIXNUM(rcv)->value == RFIXNUM(obj)->value;
}
VALUE arg = OC2RB(obj);
return rb_vm_call((VALUE)rcv, selEq, 1, &arg, false) == Qtrue;
}
static void *
rb_obj_imp_init(void *rcv, SEL sel)
{
rb_vm_call((VALUE)rcv, selInitialize, 0, NULL, false);
return rcv;
}
static void *
rb_obj_imp_description(void *rcv, SEL sel)
{
return (void *)rb_vm_call(OC2RB(rcv), selToS, 0, NULL, false);
}
static VALUE
rb_objc_init(VALUE rcv, SEL sel)
{
IMP imp = class_getMethodImplementation((Class)CLASS_OF(rcv), selInit);
if (imp != NULL && imp != (IMP)rb_obj_imp_init) {
return (VALUE)((void *(*)(void *, SEL))*imp)((void *)rcv, selInit);
}
return rcv;
}
VALUE rb_obj_init_copy(VALUE, SEL, VALUE);
VALUE rb_class_new_instance_imp(VALUE klass, SEL sel, int argc, VALUE *argv);
void
rb_define_object_special_methods(VALUE klass)
{
RCLASS_SET_VERSION(*(VALUE *)klass,
(RCLASS_VERSION(*(VALUE *)klass) | RCLASS_HAS_ROBJECT_ALLOC));
rb_objc_define_method(*(VALUE *)klass, "new",
rb_class_new_instance_imp, -1);
rb_objc_define_method(*(VALUE *)klass, "__new__",
rb_class_new_instance_imp, -1);
rb_objc_define_method(klass, "dup", rb_obj_dup, 0);
rb_objc_define_private_method(klass, "initialize", rb_objc_init, 0);
rb_objc_define_private_method(klass, "initialize_copy", rb_obj_init_copy, 1);
rb_objc_install_method(*(Class *)klass, selAllocWithZone,
(IMP)rb_obj_imp_allocWithZone);
rb_objc_install_method((Class)klass, selIsEqual, (IMP)rb_obj_imp_isEqual);
rb_objc_install_method((Class)klass, selInit, (IMP)rb_obj_imp_init);
rb_objc_install_method((Class)klass, selDescription, (IMP)rb_obj_imp_description);
}
static VALUE
rb_objc_alloc_class(const char *name, VALUE super, VALUE flags, VALUE klass)
{
Class ocklass;
char ocname[128];
int version_flag;
if (name == NULL) {
static long anon_count = 1;
snprintf(ocname, sizeof ocname, "RBAnonymous%ld", ++anon_count);
}
else {
if (objc_getClass(name) != NULL) {
long count = 1;
snprintf(ocname, sizeof ocname, "RB%s", name);
while (objc_getClass(ocname) != NULL)
snprintf(ocname, sizeof ocname, "RB%s%ld", name, ++count);
// rb_warning("can't create `%s' as an Objective-C class, because "
// "it already exists, instead using `%s'", name, ocname);
}
else {
strncpy(ocname, name, sizeof ocname);
}
}
if (super == 0)
super = rb_cObject;
ocklass = objc_allocateClassPair((Class)super, ocname, sizeof(id));
assert(ocklass != NULL);
version_flag = RCLASS_IS_RUBY_CLASS;
if (flags == T_MODULE) {
version_flag |= RCLASS_IS_MODULE;
}
if (super == rb_cObject || (RCLASS_VERSION(super) & RCLASS_IS_OBJECT_SUBCLASS) == RCLASS_IS_OBJECT_SUBCLASS) {
version_flag |= RCLASS_IS_OBJECT_SUBCLASS;
}
RCLASS_SET_VERSION(ocklass, version_flag);
DLOG("DEFC", "%s < %s (version=%d)", ocname, class_getName(class_getSuperclass((Class)ocklass)), version_flag);
objc_registerClassPair(ocklass);
if (klass != 0) {
rb_objc_install_primitives(ocklass, (Class)super);
}
return (VALUE)ocklass;
}
VALUE
rb_objc_create_class(const char *name, VALUE super)
{
VALUE klass;
if (super == rb_cCFString) {
super = rb_cNSMutableString;
}
else if (super == rb_cCFArray) {
super = rb_cNSMutableArray;
}
else if (super == rb_cCFHash) {
super = rb_cNSMutableHash;
}
klass = rb_objc_alloc_class(name, super, T_CLASS, rb_cClass);
if (super == rb_cNSObject) {
rb_define_object_special_methods(klass);
}
else if (super != 0
&& ((RCLASS_VERSION(*(VALUE *)super) & RCLASS_HAS_ROBJECT_ALLOC)
== RCLASS_HAS_ROBJECT_ALLOC)) {
RCLASS_SET_VERSION(*(VALUE *)klass,
(RCLASS_VERSION(*(VALUE *)klass) | RCLASS_HAS_ROBJECT_ALLOC));
}
if (name != NULL && rb_class_tbl != NULL) {
st_insert(rb_class_tbl, (st_data_t)rb_intern(name), (st_data_t)klass);
}
return klass;
}
VALUE
rb_class_boot(VALUE super)
{
return rb_objc_create_class(NULL, super);
}
void
rb_check_inheritable(VALUE super)
{
if (TYPE(super) != T_CLASS) {
rb_raise(rb_eTypeError, "superclass must be a Class (%s given)",
rb_obj_classname(super));
}
if (RCLASS_SINGLETON(super)) {
rb_raise(rb_eTypeError, "can't make subclass of singleton class");
}
}
VALUE
rb_class_new(VALUE super)
{
Check_Type(super, T_CLASS);
rb_check_inheritable(super);
if (super == rb_cClass) {
rb_raise(rb_eTypeError, "can't make subclass of Class");
}
return rb_class_boot(super);
}
/* :nodoc: */
VALUE
rb_mod_init_copy(VALUE clone, SEL sel, VALUE orig)
{
rb_obj_init_copy(clone, 0, orig);
{
VALUE super;
int version_flag;
if (orig == rb_cNSMutableString
|| orig == rb_cNSMutableArray
|| orig == rb_cNSMutableHash) {
super = orig;
rb_warn("cloning class `%s' is not supported, creating a " \
"subclass instead", rb_class2name(orig));
}
else {
super = RCLASS_SUPER(orig);
}
RCLASS_SET_SUPER(clone, super);
version_flag = RCLASS_IS_RUBY_CLASS;
if ((RCLASS_VERSION(super) & RCLASS_IS_OBJECT_SUBCLASS) == RCLASS_IS_OBJECT_SUBCLASS) {
version_flag |= RCLASS_IS_OBJECT_SUBCLASS;
}
RCLASS_SET_VERSION(clone, version_flag);
}
#if 0 // TODO
if (RCLASS_IV_TBL(orig)) {
ID id;
GC_WB(&RCLASS_IV_TBL(clone), st_copy(RCLASS_IV_TBL(orig)));
id = rb_intern("__classpath__");
st_delete(RCLASS_IV_TBL(clone), (st_data_t*)&id, 0);
id = rb_intern("__classid__");
st_delete(RCLASS_IV_TBL(clone), (st_data_t*)&id, 0);
}
if (RCLASS_M_TBL(orig)) {
struct clone_method_data data;
GC_WB(&RCLASS_M_TBL(clone), st_init_numtable());
data.tbl = RCLASS_M_TBL(clone);
data.klass = clone;
st_foreach(RCLASS_M_TBL(orig), clone_method,
(st_data_t)&data);
}
#endif
return clone;
}
/* :nodoc: */
VALUE
rb_class_init_copy(VALUE clone, SEL sel, VALUE orig)
{
if (RCLASS_SINGLETON(orig)) {
rb_raise(rb_eTypeError, "can't copy singleton class");
}
clone = rb_mod_init_copy(clone, 0, orig);
rb_objc_install_primitives((Class)clone, (Class)orig);
return clone;
}
VALUE
rb_singleton_class_clone(VALUE obj)
{
VALUE klass = RBASIC(obj)->klass;
if (!RCLASS_SINGLETON(klass)) {
return klass;
}
else {
/* copy singleton(unnamed) class */
VALUE clone = rb_objc_create_class(NULL, RCLASS_SUPER(klass));
CFMutableDictionaryRef ivar_dict = rb_class_ivar_dict(klass);
if (ivar_dict != NULL) {
CFMutableDictionaryRef cloned_ivar_dict;
cloned_ivar_dict = CFDictionaryCreateMutableCopy(NULL, 0, (CFDictionaryRef)ivar_dict);
rb_class_ivar_set_dict(clone, cloned_ivar_dict);
CFMakeCollectable(cloned_ivar_dict);
}
Method *methods;
unsigned i, methods_count;
methods = class_copyMethodList((Class)klass, &methods_count);
if (methods != NULL) {
for (i = 0; i < methods_count; i++) {
Method method = methods[i], method2;
method2 = class_getInstanceMethod((Class)clone, method_getName(method));
if (method2 != class_getInstanceMethod((Class)RCLASS_SUPER(clone), method_getName(method))) {
method_setImplementation(method2, method_getImplementation(method));
}
else {
assert(class_addMethod((Class)clone,
method_getName(method),
method_getImplementation(method),
method_getTypeEncoding(method)));
}
}
free(methods);
}
rb_singleton_class_attached(RBASIC(clone)->klass, (VALUE)clone);
if (RCLASS_SUPER(clone) == rb_cNSObject) {
long v = RCLASS_VERSION(clone) ^ RCLASS_IS_OBJECT_SUBCLASS;
RCLASS_SET_VERSION(clone, v);
}
RCLASS_SET_VERSION_FLAG(clone, RCLASS_IS_SINGLETON);
return clone;
}
}
void
rb_singleton_class_attached(VALUE klass, VALUE obj)
{
if (RCLASS_SINGLETON(klass)) {
static ID attachedId = 0;
if (attachedId == 0) {
attachedId = rb_intern("__attached__");
}
rb_ivar_set(klass, attachedId, obj);
}
}
VALUE
rb_make_metaclass(VALUE obj, VALUE super)
{
if (TYPE(obj) == T_CLASS && RCLASS_SINGLETON(obj)) {
RBASIC(obj)->klass = rb_cClass;
return rb_cClass;
}
else {
VALUE klass;
klass = rb_class_boot(super);
RBASIC(obj)->klass = klass;
if (super == rb_cNSObject) {
long v = RCLASS_VERSION(klass) ^ RCLASS_IS_OBJECT_SUBCLASS;
RCLASS_SET_VERSION(klass, v);
}
RCLASS_SET_VERSION_FLAG(klass, RCLASS_IS_SINGLETON);
rb_vm_set_outer(klass, rb_vm_get_outer(super));
rb_singleton_class_attached(klass, obj);
return klass;
}
}
VALUE
rb_define_class_id(ID id, VALUE super)
{
if (super == 0) {
super = rb_cObject;
}
return rb_objc_create_class(rb_id2name(id), super);
}
VALUE
rb_class_inherited(VALUE super, VALUE klass)
{
if (rb_vm_running()) {
if (super == 0) {
super = rb_cObject;
}
return rb_vm_call(super, selInherited, 1, &klass, false);
}
return Qnil;
}
VALUE
rb_define_class(const char *name, VALUE super)
{
VALUE klass;
ID id;
id = rb_intern(name);
if (rb_const_defined(rb_cObject, id)) {
klass = rb_const_get(rb_cObject, id);
if (TYPE(klass) != T_CLASS) {
rb_raise(rb_eTypeError, "%s is not a class", name);
}
if (rb_class_real(RCLASS_SUPER(klass)) != super) {
rb_name_error(id, "%s is already defined", name);
}
return klass;
}
if (!super) {
rb_warn("no super class for `%s', Object assumed", name);
}
klass = rb_define_class_id(id, super);
st_add_direct(rb_class_tbl, id, klass);
rb_name_class(klass, id);
rb_const_set(rb_cObject, id, klass);
rb_vm_set_outer(klass, rb_cObject);
rb_class_inherited(super, klass);
return klass;
}
VALUE
rb_define_class_under(VALUE outer, const char *name, VALUE super)
{
VALUE klass;
ID id;
id = rb_intern(name);
if (rb_const_defined_at(outer, id)) {
klass = rb_const_get_at(outer, id);
if (TYPE(klass) != T_CLASS) {
rb_raise(rb_eTypeError, "%s is not a class", name);
}
if (rb_class_real(RCLASS_SUPER(klass)) != super) {
rb_name_error(id, "%s is already defined", name);
}
return klass;
}
if (!super) {
rb_warn("no super class for `%s::%s', Object assumed",
rb_class2name(outer), name);
}
klass = rb_define_class_id(id, super);
rb_set_class_path(klass, outer, name);
rb_const_set(outer, id, klass);
rb_class_inherited(super, klass);
return klass;
}
VALUE
rb_module_new(void)
{
return rb_define_module_id(0);
}
VALUE rb_mod_initialize(VALUE, SEL);
VALUE
rb_define_module_id(ID id)
{
VALUE mdl;
mdl = rb_objc_alloc_class(id == 0 ? NULL : rb_id2name(id), rb_cObject, T_MODULE, rb_cModule);
if ((rb_mKernel != 0) && (id == 0)) {
/* because Module#initialize can accept a block */
rb_objc_define_method(*(VALUE *)mdl, "initialize", rb_mod_initialize, 0);
}
return mdl;
}
VALUE
rb_define_module(const char *name)
{
VALUE module;
ID id;
id = rb_intern(name);
if (rb_const_defined(rb_cObject, id)) {
module = rb_const_get(rb_cObject, id);
if (TYPE(module) == T_MODULE)
return module;
rb_raise(rb_eTypeError, "%s is not a module", rb_obj_classname(module));
}
module = rb_define_module_id(id);
st_add_direct(rb_class_tbl, id, module);
rb_const_set(rb_cObject, id, module);
return module;
}
VALUE
rb_define_module_under(VALUE outer, const char *name)
{
VALUE module;
ID id;
id = rb_intern(name);
if (rb_const_defined_at(outer, id)) {
module = rb_const_get_at(outer, id);
if (TYPE(module) == T_MODULE)
return module;
rb_raise(rb_eTypeError, "%s::%s is not a module",
rb_class2name(outer), rb_obj_classname(module));
}
module = rb_define_module_id(id);
rb_const_set(outer, id, module);
rb_set_class_path(module, outer, name);
return module;
}
void
rb_include_module2(VALUE klass, VALUE module, int check, int add_methods)
{
VALUE ary;
if (check) {
rb_frozen_class_p(klass);
if (!OBJ_TAINTED(klass))
rb_secure(4);
Check_Type(module, T_MODULE);
}
ary = rb_attr_get(klass, idIncludedModules);
if (ary == Qnil) {
ary = rb_ary_new();
rb_ivar_set(klass, idIncludedModules, ary);
}
else {
if (rb_ary_includes(ary, module))
return;
}
rb_ary_insert(ary, 0, module);
long v = RCLASS_VERSION(module) | RCLASS_IS_INCLUDED;
RCLASS_SET_VERSION(module, v);
ary = rb_attr_get(module, idIncludedInClasses);
if (ary == Qnil) {
ary = rb_ary_new();
rb_ivar_set(module, idIncludedInClasses, ary);
}
rb_ary_push(ary, klass);
CFMutableDictionaryRef iv_dict;
iv_dict = rb_class_ivar_dict(klass);
if (iv_dict != NULL) {
CFDictionaryRemoveValue(iv_dict, (const void *)idAncestors);
}
DLOG("INCM", "%s <- %s", class_getName((Class)klass), class_getName((Class)module));
if (add_methods) {
rb_vm_copy_methods((Class)module, (Class)klass);
}
}
void
rb_include_module(VALUE klass, VALUE module)
{
rb_include_module2(klass, module, 1, 1);
}
/*
* call-seq:
* mod.included_modules -> array
*
* Returns the list of modules included in <i>mod</i>.
*
* module Mixin
* end
*
* module Outer
* include Mixin
* end
*
* Mixin.included_modules #=> []
* Outer.included_modules #=> [Mixin]
*/
static void
rb_mod_included_modules_nosuper(VALUE mod, VALUE ary)
{
VALUE inc_mods = rb_attr_get(mod, idIncludedModules);
if (inc_mods != Qnil) {
int i, count = RARRAY_LEN(inc_mods);
for (i = 0; i < count; i++) {
VALUE imod = RARRAY_AT(inc_mods, i);
rb_ary_push(ary, imod);
rb_ary_concat(ary, rb_mod_included_modules(imod));
}
}
}
VALUE
rb_mod_included_modules(VALUE mod)
{
VALUE p, ary = rb_ary_new();
for (p = mod; p; p = RCLASS_SUPER(p)) {
rb_mod_included_modules_nosuper(p, ary);
if (RCLASS_MODULE(p))
break;
}
return ary;
}
/*
* call-seq:
* mod.include?(module) => true or false
*
* Returns <code>true</code> if <i>module</i> is included in
* <i>mod</i> or one of <i>mod</i>'s ancestors.
*
* module A
* end
* class B
* include A
* end
* class C < B
* end
* B.include?(A) #=> true
* C.include?(A) #=> true
* A.include?(A) #=> false
*/
VALUE
rb_mod_include_p(VALUE mod, SEL sel, VALUE mod2)
{
return rb_ary_includes(rb_mod_included_modules(mod), mod2);
}
/*
* call-seq:
* mod.ancestors -> array
*
* Returns a list of modules included in <i>mod</i> (including
* <i>mod</i> itself).
*
* module Mod
* include Math
* include Comparable
* end
*
* Mod.ancestors #=> [Mod, Comparable, Math]
* Math.ancestors #=> [Math]
*/
static void rb_mod_included_modules_nosuper(VALUE, VALUE);
VALUE
rb_mod_ancestors_nocopy(VALUE mod)
{
VALUE ary;
ary = rb_attr_get(mod, idAncestors);
if (NIL_P(ary)) {
VALUE p;
ary = rb_ary_new();
for (p = mod; p; p = RCLASS_SUPER(p)) {
rb_ary_push(ary, p);
rb_mod_included_modules_nosuper(p, ary);
if (RCLASS_MODULE(p))
break;
}
rb_ivar_set(mod, idAncestors, ary);
}
return ary;
}
VALUE
rb_mod_ancestors(VALUE mod)
{
return rb_ary_dup(rb_mod_ancestors_nocopy(mod));
}
static int
ins_methods_push(VALUE name, long type, VALUE ary, long visi)
{
if (type != -1) {
bool visible;
switch (visi) {
case NOEX_PRIVATE:
case NOEX_PROTECTED:
case NOEX_PUBLIC:
visible = (type == visi);
break;
default:
visible = (type != NOEX_PRIVATE);
break;
}
if (visible) {
rb_ary_push(ary, name);
}
}
return ST_CONTINUE;
}
static int
ins_methods_i(VALUE name, ID type, VALUE ary)
{
return ins_methods_push(name, type, ary, -1); /* everything but private */
}
static int
ins_methods_prot_i(VALUE name, ID type, VALUE ary)
{
return ins_methods_push(name, type, ary, NOEX_PROTECTED);
}
static int
ins_methods_priv_i(VALUE name, ID type, VALUE ary)
{
return ins_methods_push(name, type, ary, NOEX_PRIVATE);
}
static int
ins_methods_pub_i(VALUE name, ID type, VALUE ary)
{
return ins_methods_push(name, type, ary, NOEX_PUBLIC);
}
static VALUE
class_instance_method_list(int argc, VALUE *argv, VALUE mod, int (*func) (VALUE, ID, VALUE))
{
VALUE ary;
VALUE recur, objc_methods;
ary = rb_ary_new();
if (argc == 0) {
recur = Qtrue;
objc_methods = Qfalse;
}
else {
rb_scan_args(argc, argv, "02", &recur, &objc_methods);
if (NIL_P(recur)) {
recur = Qtrue;
}
if (NIL_P(objc_methods)) {
objc_methods = Qfalse;
}
}
while (mod != 0) {
rb_vm_push_methods(ary, mod, RTEST(objc_methods), func);
if (recur == Qfalse) {
break;
}
mod = (VALUE)class_getSuperclass((Class)mod);
}
return ary;
}
/*
* call-seq:
* mod.instance_methods(include_super=true) => array
*
* Returns an array containing the names of public instance methods in
* the receiver. For a module, these are the public methods; for a
* class, they are the instance (not singleton) methods. With no
* argument, or with an argument that is <code>false</code>, the
* instance methods in <i>mod</i> are returned, otherwise the methods
* in <i>mod</i> and <i>mod</i>'s superclasses are returned.
*
* module A
* def method1() end
* end
* class B
* def method2() end
* end
* class C < B
* def method3() end
* end
*
* A.instance_methods #=> [:method1]
* B.instance_methods(false) #=> [:method2]
* C.instance_methods(false) #=> [:method3]
* C.instance_methods(true).length #=> 43
*/
VALUE
rb_class_instance_methods(VALUE mod, SEL sel, int argc, VALUE *argv)
{
return class_instance_method_list(argc, argv, mod, ins_methods_i);
}
/*
* call-seq:
* mod.protected_instance_methods(include_super=true) => array
*
* Returns a list of the protected instance methods defined in
* <i>mod</i>. If the optional parameter is not <code>false</code>, the
* methods of any ancestors are included.
*/
VALUE
rb_class_protected_instance_methods(VALUE mod, SEL sel, int argc, VALUE *argv)
{
return class_instance_method_list(argc, argv, mod, ins_methods_prot_i);
}
/*
* call-seq:
* mod.private_instance_methods(include_super=true) => array
*
* Returns a list of the private instance methods defined in
* <i>mod</i>. If the optional parameter is not <code>false</code>, the
* methods of any ancestors are included.
*
* module Mod
* def method1() end
* private :method1
* def method2() end
* end
* Mod.instance_methods #=> [:method2]
* Mod.private_instance_methods #=> [:method1]
*/
VALUE
rb_class_private_instance_methods(VALUE mod, SEL sel, int argc, VALUE *argv)
{
return class_instance_method_list(argc, argv, mod, ins_methods_priv_i);
}
/*
* call-seq:
* mod.public_instance_methods(include_super=true) => array
*
* Returns a list of the public instance methods defined in <i>mod</i>.
* If the optional parameter is not <code>false</code>, the methods of
* any ancestors are included.
*/
VALUE
rb_class_public_instance_methods(VALUE mod, SEL sel, int argc, VALUE *argv)
{
return class_instance_method_list(argc, argv, mod, ins_methods_pub_i);
}
/*
* call-seq:
* obj.singleton_methods(all=true) => array
*
* Returns an array of the names of singleton methods for <i>obj</i>.
* If the optional <i>all</i> parameter is true, the list will include
* methods in modules included in <i>obj</i>.
*
* module Other
* def three() end
* end
*
* class Single
* def Single.four() end
* end
*
* a = Single.new
*
* def a.one()
* end
*
* class << a
* include Other
* def two()
* end
* end
*
* Single.singleton_methods #=> [:four]
* a.singleton_methods(false) #=> [:two, :one]
* a.singleton_methods #=> [:two, :one, :three]
*/
VALUE
rb_obj_singleton_methods(VALUE obj, SEL sel, int argc, VALUE *argv)
{
VALUE recur, objc_methods, klass, ary;
if (argc == 0) {
recur = Qtrue;
objc_methods = Qfalse;
}
else {
rb_scan_args(argc, argv, "02", &recur, &objc_methods);
}
klass = CLASS_OF(obj);
ary = rb_ary_new();
do {
if (RCLASS_SINGLETON(klass)) {
rb_vm_push_methods(ary, klass, RTEST(objc_methods), ins_methods_i);
}
klass = RCLASS_SUPER(klass);
}
while (recur == Qtrue && klass != 0);
return ary;
}
static SEL
name_to_sel(const char *name, const int arity)
{
if (arity > 0) {
char buf[100];
snprintf(buf, sizeof buf, "%s:", name);
return sel_registerName(buf);
}
return sel_registerName(name);
}
static void
rb_objc_add_method(VALUE klass, const char *name, void *imp, const int arity,
const int noex, bool direct)
{
if (!direct) {
assert(name[strlen(name) - 1] != ':');
}
NODE *body = rb_vm_cfunc_node_from_imp((Class)klass, arity, (IMP)imp, noex);
rb_objc_retain(body);
rb_vm_define_method((Class)klass, name_to_sel(name, arity), (IMP)imp,
body, direct);
}
void
rb_objc_define_direct_method(VALUE klass, const char *name, void *imp,
const int arity)
{
rb_objc_add_method(klass, name, imp, arity, NOEX_PUBLIC, true);
}
void
rb_objc_define_method(VALUE klass, const char *name, void *imp, const int arity)
{
rb_objc_add_method(klass, name, imp, arity, NOEX_PUBLIC, false);
}
void
rb_objc_define_private_method(VALUE klass, const char *name, void *imp,
const int arity)
{
rb_objc_add_method(klass, name, imp, arity, NOEX_PRIVATE, false);
}
void
rb_objc_define_module_function(VALUE module, const char *name, void *imp,
const int arity)
{
rb_objc_define_private_method(module, name, imp, arity);
rb_objc_define_method(*(VALUE *)module, name, imp, arity);
}
void
rb_define_method_id(VALUE klass, ID name, VALUE (*func)(ANYARGS), int argc)
{
rb_add_method(klass, name, NEW_CFUNC(func,argc), NOEX_PUBLIC);
}