class Opal::CLI

def initialize(options = nil)
  options ||= {}
  # Runner
  @runner_type    = options.delete(:runner)         || :nodejs
  @runner_options = options.delete(:runner_options) || {}
  @options     = options
  @sexp        = options.delete(:sexp)
  @file        = options.delete(:file)
  @no_exit     = options.delete(:no_exit)
  @lib_only    = options.delete(:lib_only)
  @argv        = options.delete(:argv)       { [] }
  @evals       = options.delete(:evals)      { [] }
  @load_paths  = options.delete(:load_paths) { [] }
  @gems        = options.delete(:gems)       { [] }
  @stubs       = options.delete(:stubs)      { [] }
  @preload     = options.delete(:preload)    { [] }
  @output      = options.delete(:output)     { self.class.stdout || $stdout }
  @verbose     = options.delete(:verbose)    { false }
  @debug       = options.delete(:debug)      { false }
  @filename    = options.delete(:filename)   { @file && @file.path }
  @requires    = options.delete(:requires)   { [] }
  @rbrequires  = options.delete(:rbrequires) { [] }
  @missing_require_severity = options.delete(:missing_require_severity) { Opal::Config.missing_require_severity }
  @requires.unshift('opal') unless options.delete(:skip_opal_require)
  @compiler_options = Hash[
    *compiler_option_names.map do |option|
      key = option.to_sym
      next unless options.key? key
      value = options.delete(key)
      [key, value]
    end.compact.flatten
  ]
  raise ArgumentError, 'no libraries to compile' if @lib_only && @requires.empty?
  raise ArgumentError, 'no runnable code provided (evals or file)' if @evals.empty? && @file.nil? && !@lib_only
  raise ArgumentError, "can't accept evals or file in `library only` mode" if (@evals.any? || @file) && @lib_only
  raise ArgumentError, "unknown options: #{options.inspect}" unless @options.empty?
end