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node_modules/stylus/lib/functions/unit.js 472 Bytes
ce4c83ff   wxy   初始提交
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  var utils = require('../utils')
    , nodes = require('../nodes');
  
  /**
   * Assign `type` to the given `unit` or return `unit`'s type.
   *
   * @param {Unit} unit
   * @param {String|Ident} type
   * @return {Unit}
   * @api public
   */
  
  module.exports = function unit(unit, type){
    utils.assertType(unit, 'unit', 'unit');
  
    // Assign
    if (type) {
      utils.assertString(type, 'type');
      return new nodes.Unit(unit.val, type.string);
    } else {
      return unit.type || '';
    }
  };