## [ruby]
procs = {
    :return => proc { return },
    :next   => proc { next },
    :break  => proc { break }
}

procs.each do |name, blk|
    puts name
    begin
        blk.call
    rescue Exception => e
        p e
    end
end
## output [plain_text]
return
#<LocalJumpError: unexpected return>
next
break