module Bundler::MatchMetadata

def expanded_dependencies
  runtime_dependencies + [
    metadata_dependency("Ruby", @required_ruby_version),
    metadata_dependency("RubyGems", @required_rubygems_version),
  ].compact
end

def matches_current_metadata?
  matches_current_ruby? && matches_current_rubygems?
end

def matches_current_ruby?
  @required_ruby_version.satisfied_by?(Gem.ruby_version)
end

def matches_current_rubygems?
  @required_rubygems_version.satisfied_by?(Gem.rubygems_version)
end

def metadata_dependency(name, requirement)
  return if requirement.nil? || requirement.none?
  Gem::Dependency.new("#{name}\0", requirement)
end