module RSpec::Mocks::Syntax

def self.default_should_syntax_host
  # JRuby 1.7.4 introduces a regression whereby `defined?(::BasicObject) => nil`
  # yet `BasicObject` still exists and patching onto ::Object breaks things
  # e.g. SimpleDelegator expectations won't work
  #
  # See: https://github.com/jruby/jruby/issues/814
  if defined?(JRUBY_VERSION) && JRUBY_VERSION == '1.7.4' && RUBY_VERSION.to_f > 1.8
    return ::BasicObject
  end
  # On 1.8.7, Object.ancestors.last == Kernel but
  # things blow up if we include `RSpec::Mocks::Methods`
  # into Kernel...not sure why.
  return Object unless defined?(::BasicObject)
  # MacRuby has BasicObject but it's not the root class.
  return Object unless Object.ancestors.last == ::BasicObject
  ::BasicObject
end