Resume from exception

uber_raise.rb

class UberException < Exception
  attr_reader :source

  def initialize(source, context)
    @source, @context = source, context
  end

  def resume(val = nil)
    @context.call val # Method context lost: LocalJumpError
  end
end

module Kernel
  private

  def uber_raise(exception)
    context = proc {|val| return val }
    raise UberException.new(exception, context)
  end
end

if __FILE__ == $0

  def foo
    bar
  rescue UberException => ue
    puts "error captured"
    ue.resume
  end

  def bar
    puts "into bar"
    uber_raise ArgumentError.new
    puts "after error"
  end

  foo
end