class RSpec::Core::World

def initialize(configuration=RSpec.configuration)
  @configuration = configuration
  @example_groups = []
  @filtered_examples = Hash.new { |hash,group|
    hash[group] = begin
      examples = group.examples.dup
      examples = apply_exclusion_filters(examples, exclusion_filter) if exclusion_filter
      examples = apply_inclusion_filters(examples, inclusion_filter) if inclusion_filter
      examples.uniq
    end
  }
end