Ruby: using Object.send for assigning variables

Question

Is there any way to do something like this?

a = Struct.new(:c).new(1)
b = Struct.new(:c).new(2)

a.send(:c)
=> 1

b.send(:c)
=> 2

a.send(:c) = b.send(:c)

The last line result in error:

syntax error, unexpected '=', expecting $end
a.send(:c) = b.send(:c)
            ^

Answer 1

a.send(:c=, b.send(:c))

foo.bar = baz isn't a call to the method bar followed by an assignment - it's a call to the method bar=. So you need to tell send to call that method.

Answer 2

Change the last line to:

a.send(:c=, b.send(:c))