BasicObject help

Ruby
1

I need help with one question i am not able to figure out what it
exactly is can anyone help me with that and explain me if possible.

Question : Given that SUPERCLASS returns nil when called on BasicObject
but a non-nil value otherwise,write a ruby method that if passed any
object will print the objects class and its ancestor classes all the way
up to BasicObject.

2

obj.class.ancestors
is probably you are looking for.

3

Dear Shoaib Ahmed,

Following the answer of Arun S…

On Wed, Feb 5, 2014 at 5:08 PM, Arun kant sharma [email protected]
wrote:

obj.class.ancestors

or

obj.class.ancestors - obj.class.included_modules

But if you are just willing a help at constructing the loop to iterate
through each superclass until it gets a nil…

The code will be something like this.

def superclasses(object)
super_classes = []
current_class = object.class
super_classes.push current_class
while current_class.superclass # When on BasicObject it will return
nil breaking the loop
current_class = current_class.superclass
super_classes.push current_class
end
super_classes
end

Writing it with while one line syntax

def superclasses(object)
super_classes = []
current_class = object.class
super_classes.push current_class
super_classes.push current_class while current_class =
current_class.superclass
super_classes
end

Best regards,
Abinoam Jr.

4

Arun Kant Sharma wrote in post #1135721:

obj.class.ancestors
is probably you are looking for.

Yes ARUN

5

Abinoam Jr. wrote in post #1135757:

Dear Shoaib Ahmed,

Following the answer of Arun S…

On Wed, Feb 5, 2014 at 5:08 PM, Arun kant sharma [email protected]
wrote:

obj.class.ancestors

or

obj.class.ancestors - obj.class.included_modules

But if you are just willing a help at constructing the loop to iterate
through each superclass until it gets a nil…

The code will be something like this.

def superclasses(object)
super_classes = []
current_class = object.class
super_classes.push current_class
while current_class.superclass # When on BasicObject it will return
nil breaking the loop
current_class = current_class.superclass
super_classes.push current_class
end
super_classes
end

Abinoam Jr. Thank you so much :slight_smile: