Top Level Namespace

Defined Under Namespace

Modules: Kernel, Vapir, Waiter Classes: Hash, Module, String, Symbol, WaiterError

Constant Summary collapse

Watir = 
Vapir
FireWatir = 
Vapir

Instance Method Summary collapse

Instance Method Details

#handle_options(given_options, default_options, other_allowed_keys = []) ⇒ Object

takes given options and default options, and optionally a list of additional allowed keys not specified in default options (this is useful when you want to pass options along to another function but don’t want to specify a default that will clobber that function’s default) raises ArgumentError if the given options have an invalid key (defined as one not specified in default options or other_allowed_keys), and sets default values in given options where nothing is set.



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# File 'lib/vapir-common/handle_options.rb', line 6

def handle_options(given_options, default_options, other_allowed_keys=[])
  given_options=given_options.dup
  unless (unknown_keys=(given_options.keys-default_options.keys-other_allowed_keys)).empty?
    raise ArgumentError, "Unknown options: #{unknown_keys.map(&:inspect).join(', ')}. Known options are #{(default_options.keys+other_allowed_keys).uniq.map(&:inspect).join(', ')}"
  end
  (default_options.keys-given_options.keys).each do |key|
    given_options[key]=default_options[key]
  end
  given_options
end