module CoffeeScript::Source

def self.bare_option
  @bare_option ||= contents.match(/noWrap/) ? 'noWrap' : 'bare'
end

def self.contents
  @contents ||= File.read(path) + COMPILE_FUNCTION_SOURCE
end

def self.context
  @context ||= ExecJS.compile(contents)
end

def self.path
  @path ||= ENV['COFFEESCRIPT_SOURCE_PATH'] || bundled_path
end

def self.path=(path)
  @contents = @version = @bare_option = @context = nil
  @path = path
end

def self.version
  @version ||= contents[/CoffeeScript Compiler v([\d.]+)/, 1]
end