diff options
Diffstat (limited to 'object.c')
-rw-r--r-- | object.c | 24 |
1 files changed, 24 insertions, 0 deletions
@@ -162,6 +162,29 @@ rb_obj_class(VALUE obj) return rb_class_real(CLASS_OF(obj)); } +/* + * call-seq: + * obj.singleton_class => class + * + * Returns the singleton class of <i>obj</i>. This method creates + * a new singleton class if <i>obj</i> does not have it. + * + * If <i>obj</i> is <code>nil</code>, <code>true</code>, or + * <code>false</code>, it returns NilClass, TrueClass, or FalseClass, + * respectively. + * If <i>obj</i> is a Fixnum or a Symbol, it raises a TypeError. + * + * Object.new.singleton_class #=> #<Class:#<Object:0xb7ce1e24>> + * String.singleton_class #=> #<Class:String> + * nil.singleton_class #=> NilClass + */ + +static VALUE +rb_obj_singleton_class(VALUE obj) +{ + return rb_singleton_class(obj); +} + static void init_copy(VALUE dest, VALUE obj) { @@ -2585,6 +2608,7 @@ Init_Object(void) rb_define_method(rb_mKernel, "<=>", rb_obj_cmp, 1); rb_define_method(rb_mKernel, "class", rb_obj_class, 0); + rb_define_method(rb_mKernel, "singleton_class", rb_obj_singleton_class, 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, "initialize_copy", rb_obj_init_copy, 1); |