class Byebug::MethodCommand

def self.description
  <<-EOD
    m[ethod] (i[nstance][ <obj>]|<class|module>)
    #{short_description}
    When invoked with "instance", shows instance methods of the object
    specified as argument or of self no object was specified.
    When invoked only with a class or module, shows class methods of the
    class or module specified as argument.
  EOD
end

def self.regexp
  /^\s* m(?:ethod)? \s+ (i(:?nstance)?\s+)?/x
end

def self.short_description
  'Shows methods of an object, class or module'
end

def execute
  obj = warning_eval(@match.post_match)
  result =
    if @match[1]
      prc('method.methods', obj.methods.sort) { |item, _| { name: item } }
    elsif !obj.is_a?(Module)
      pr('variable.errors.not_module', object: @match.post_match)
    else
      prc('method.methods', obj.instance_methods(false).sort) do |item, _|
        { name: item }
      end
    end
  puts result
end