code: function(options, code) {
      var rst = JSON.parse(JSON.stringify(options)); // Let's clone options
  
      // In the case were source maps are activated, we need to make some verifications
  
      if (rst.sourceMaps) {
  
          // 1. If we're processing a block of code, we need to ensure that the block will have a specific source name
          if (code) {
              rst.sourceFileName = processSourceFileName(rst.sourceFileName, code);
          }
  
          // 2. If the sourceMap options equals to "inline" or "both", we need to set it to true before processing babel transform
          // otherwize, the sourceMapUrl will be added by babel to the generated code of each file / block of code.
          // We will take care to handle the "inline" or "both" specification when the concatenated code has been fully generated
          if (rst.sourceMaps === "inline" || rst.sourceMaps === "both") {
              rst.sourceMaps = true;
          }
      }
  
      return rst;
  }
docs: Process the babel options to adapt the options to avoid some issue after transformation.
  @param   {Object} options current options for babel
  @param   {String} code    code associated
  @returns {Object} options really used during transformation