class IRB::ExtendCommand::MultiIRBCommand

def execute(*args)
  extend_irb_context
end

def extend_irb_context
  # this extension patches IRB context like IRB.CurrentContext
  require_relative "../ext/multi-irb"
end

def print_debugger_warning
  warn "Multi-IRB commands are not available when the debugger is enabled."
end

def print_deprecated_warning
  warn <<~MSG
    Multi-irb commands are deprecated and will be removed in IRB 2.0.0. Please use workspace commands instead.
    If you have any use case for multi-irb, please leave a comment at https://github.com/ruby/irb/issues/653
  MSG
end