Shorthand for: return if not nil

Question

I use variable caching to cut down on execution time like so:

def some_method
  return @var if @var
  [some other code that gets executed only once]
end

Is there a shorthand for return @var if @var ? If its a single line method I use:

@var ||= [some more code]

Can something similar (short) be done with multiline methods?

Answer 1

I use this:

@var ||= begin
   # ...
end