code: function getSourceMap(options) {
    var sourceMap = options.sourceMap;
  
    if (sourceMap && typeof sourceMap !== 'string' && options.outFile) {
      sourceMap = options.outFile + '.map';
    }
  
    return sourceMap && typeof sourceMap === 'string' ? path.resolve(sourceMap) : null;
  }
docs: Get source map
  
  @param {Object} options
  @api private