Method astUpdateExpression

src/backend/function-node.js:1167–1177

* @desc Parses the abstract syntax tree for *Update* Expression * @param {Object} uNode - An ast Node * @param {Array} retArr - return array string * @returns {Array} the append retArr

(uNode, retArr)

   * @returns {Array} the append retArr
   */
  astUpdateExpression(uNode, retArr) {
    if (uNode.prefix) {
      retArr.push(uNode.operator);
      this.astGeneric(uNode.argument, retArr);
    } else {
      this.astGeneric(uNode.argument, retArr);
      retArr.push(uNode.operator);
    }

    return retArr;
  }
  /**
   * @desc Parses the abstract syntax tree for *Logical* Expression
   * @param {Object} logNode - An ast Node