"use strict";
  var __extends = (this && this.__extends) || (function () {
      var extendStatics = Object.setPrototypeOf ||
          ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
          function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
      return function (d, b) {
          extendStatics(d, b);
          function __() { this.constructor = d; }
          d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
      };
  })();
  Object.defineProperty(exports, "__esModule", { value: true });
  var utils_1 = require("../utils");
  var validate_1 = require("../validate");
  var XmlNode_1 = require("./XmlNode");
  /**
   * Represents an XML processing instruction.
   *
   * An XML processing instruction is structured as follows, where `{target}`
   * and `{content}` are the target and content of the processing instruction
   * respectively.
   *
   * ```xml
   * <?{target} {content}?>
   * ```
   *
   * The `{target}` and `{content}` values are properties of this node.
   *
   * XmlProcInst nodes cannot have any children.
   */
  var XmlProcInst = (function (_super) {
      __extends(XmlProcInst, _super);
      /**
       * Initializes a new instance of the {@link XmlProcInst} class.
       *
       * @param target The target of the processing instruction.
       * @param content The data of the processing instruction, or undefined if
       *                there is no target.
       */
      function XmlProcInst(target, content) {
          var _this = _super.call(this) || this;
          _this.target = target;
          _this.content = content;
          return _this;
      }
      Object.defineProperty(XmlProcInst.prototype, "target", {
          /**
           * Gets the target of the processing instruction.
           *
           * @returns The target of the processing instruction.
           */
          get: function () {
              return this._target;
          },
          /**
           * Sets the target of the processing instruction.
           *
           * @param target The target of the processing instruction.
           */
          set: function (target) {
              if (!utils_1.isString(target)) {
                  throw new TypeError("target should be a string");
              }
              else if (!validate_1.validateChar(target)) {
                  throw new Error("target should not contain characters"
                      + " not allowed in XML");
              }
              else if (target === "xml") {
                  throw new Error("target should not be the string 'xml'");
              }
              this._target = target;
          },
          enumerable: true,
          configurable: true
      });
      Object.defineProperty(XmlProcInst.prototype, "content", {
          /**
           * Gets the data of the processing instruction.
           *
           * @returns The data of the processing instruction. This value may be
           *          undefined.
           */
          get: function () {
              return this._content;
          },
          /**
           * Sets the data of the processing instruction.
           *
           * @param content The data of the processing instruction. This value may be
           *                undefined.
           */
          set: function (content) {
              if (!utils_1.isString(content) && !utils_1.isUndefined(content)) {
                  throw new TypeError("data should be a string or undefined");
              }
              if (utils_1.isString(content)) {
                  if (!validate_1.validateChar(content)) {
                      throw new Error("data should not contain characters"
                          + " not allowed in XML");
                  }
                  else if (/\?>/.test(content)) {
                      throw new Error("data should not contain the string '?>'");
                  }
              }
              this._content = content;
          },
          enumerable: true,
          configurable: true
      });
      /**
       * Throws an exception since {@link XmlProcInst} nodes cannot have any
       * children.
       *
       * @returns This method does not return.
       */
      XmlProcInst.prototype.children = function () {
          throw new Error("XmlProcInst nodes cannot have children");
      };
      /**
       * Throws an exception since {@link XmlProcInst} nodes cannot have any
       * children.
       *
       * @param node This parameter is unused.
       * @param index This parameter is unused.
       *
       * @returns This method does not return.
       */
      XmlProcInst.prototype.insertChild = function (node, index) {
          throw new Error("XmlProcInst nodes cannot have children");
      };
      /**
       * Throws an exception since {@link XmlProcInst} nodes cannot have any
       * children.
       *
       * @param node This parameter is unused.
       *
       * @returns This method does not return.
       */
      XmlProcInst.prototype.removeChild = function (node) {
          throw new Error("XmlProcInst nodes cannot have children");
      };
      /**
       * Throws an exception since {@link XmlProcInst} nodes cannot have any
       * children.
       *
       * @param index This parameter is unused.
       *
       * @returns This method does not return.
       */
      XmlProcInst.prototype.removeChildAtIndex = function (index) {
          throw new Error("XmlProcInst nodes cannot have children");
      };
      /**
       * Returns an XML string representation of this node.
       *
       * @param options Formatting options for the string representation.
       *
       * @returns {string} An XML string representation of this node.
       */
      XmlProcInst.prototype.toString = function (options) {
          if (options === void 0) { options = {}; }
          if (this.content === undefined) {
              return "<?" + this.target + "?>";
          }
          else {
              return "<?" + this.target + " " + this.content + "?>";
          }
      };
      return XmlProcInst;
  }(XmlNode_1.default));
  exports.default = XmlProcInst;