Asignment is method programming

Question

So in ruby

a.b = 5
Is the same as
a.b=(5)

I was wondering if there was a programming language where

a = 5
Is equivelent to
a.=(5)

Obviously in that kind of a paradigm types would control what can be asigned to them i expect such a language would be strongly typed. Lets say a was a fraction type. The Fraction type could define .=() so that
a = 5
Is equivelent to
a = Fraction.new(5,1)

But the language would still be the strongly typed.
I feel that would be really cool

Answer 1

In C++ you can overload operators if at least one operand is of user defined type.

I don't think I have fully understood your question but here is what I can have for demonstration purpose.

https://code.sololearn.com/cxHps8pAIgX3/?ref=app

User is a user defined data type and we are assigning a string to user object.

= operator is overloaded such that when you assign a std::string to it changes name field of user object.

I hope this is somewhat close to what you are asking :)

Answer 2

Thanks so much i had no idea C++ had such cool capabilities. That was exactly what i was asking. Can amy other languages do that?

Answer 3

I have seen people doing it in python.
and on google I found that even ruby can do this!
see the faqs : https://www.ruby-lang.org/en/documentation/faq/7/