singleton_method(p1)
public
Similar to method, searches singleton method only.
class Demo
def initialize(n)
@iv = n
end
def hello()
"Hello, @iv = #{@iv}"
end
end
k = Demo.new(99)
def k.hi
"Hi, @iv = #{@iv}"
end
m = k.singleton_method(:hi)
m.call
m = k.singleton_method(:hello)
VALUE
rb_obj_singleton_method(VALUE obj, VALUE vid)
{
rb_method_entry_t *me;
VALUE klass;
ID id = rb_check_id(&vid);
if (!id) {
if (!NIL_P(klass = rb_singleton_class_get(obj)) &&
respond_to_missing_p(klass, obj, vid, FALSE)) {
id = rb_intern_str(vid);
return mnew_missing(klass, klass, obj, id, id, rb_cMethod);
}
rb_name_error_str(vid, "undefined singleton method `%"PRIsVALUE"' for `%"PRIsVALUE"'",
QUOTE(vid), obj);
}
if (NIL_P(klass = rb_singleton_class_get(obj)) ||
UNDEFINED_METHOD_ENTRY_P(me = rb_method_entry_at(klass, id)) ||
UNDEFINED_REFINED_METHOD_P(me->def)) {
rb_name_error(id, "undefined singleton method `%"PRIsVALUE"' for `%"PRIsVALUE"'",
QUOTE_ID(id), obj);
}
return mnew_from_me(me, klass, klass, obj, id, rb_cMethod, FALSE);
}