Can you eval code in the context of a caller in Ruby?

Question

Essentially I\'m wondering if the following can be done in Ruby.

So for example:

def bar(symbol) 
  # magic code goes here, it outputs \"a = 100\"          


        

Answer 1

You have to pass foo's context to bar:

def foo
  a = 100
  bar(:a, binding)
end
def bar(sym, b)
  puts "#{sym} is #{eval(sym.to_s, b)}"
end