Simple Sass Modules

module.scss

/**
 * Simple Sass Modules
 * 
 * Prevent output from Sass modules when @imported more than once. Allows for
 * modules to declare their own dependencies without a global stylesheet having to know what
 * to include and without fear CSS will be exported multiple times.
 *
 */

/**
 *  Stores a list of all the currently exported modules to help with dependency management
 *  @type list 
 *  @access private
 */
$modules: ()!default;

/**
 * Core mixin for managing dependencies through the framework and your project
 * 
 * @author Ian Thomas
 * @param {String} $name - The name of your component
 * @example scss
 *   @include exports('my-component') { 
 *     .class { ... }
 *   }
 */

@mixin exports($name){
  @if index($modules, $name) == false {
    $modules: append($modules, $name);
    @content;
  }
}