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/*! * Module dependencies. */
'use strict';
const EventEmitter = require('events').EventEmitter;const Subdocument = require('./subdocument');const utils = require('../utils');
const documentArrayParent = require('../helpers/symbols').documentArrayParent;
/** * A constructor. * * @param {Object} obj js object returned from the db * @param {MongooseDocumentArray} parentArr the parent array of this document * @param {Boolean} skipId * @param {Object} fields * @param {Number} index * @inherits Document * @api private */
function ArraySubdocument(obj, parentArr, skipId, fields, index) {  if (utils.isMongooseDocumentArray(parentArr)) {    this.__parentArray = parentArr;    this[documentArrayParent] = parentArr.$parent();  } else {    this.__parentArray = undefined;    this[documentArrayParent] = undefined;  }  this.$setIndex(index);  this.$__parent = this[documentArrayParent];
  Subdocument.call(this, obj, fields, this[documentArrayParent], skipId, { isNew: true });}
/*! * Inherit from Subdocument */ArraySubdocument.prototype = Object.create(Subdocument.prototype);ArraySubdocument.prototype.constructor = ArraySubdocument;
Object.defineProperty(ArraySubdocument.prototype, '$isSingleNested', {  configurable: false,  writable: false,  value: false});
Object.defineProperty(ArraySubdocument.prototype, '$isDocumentArrayElement', {  configurable: false,  writable: false,  value: true});
for (const i in EventEmitter.prototype) {  ArraySubdocument[i] = EventEmitter.prototype[i];}
/*! * ignore */
ArraySubdocument.prototype.$setIndex = function(index) {  this.__index = index;
  if (this.$__ != null && this.$__.validationError != null) {    const keys = Object.keys(this.$__.validationError.errors);    for (const key of keys) {      this.invalidate(key, this.$__.validationError.errors[key]);    }  }};
/*! * ignore */
ArraySubdocument.prototype.populate = function() {  throw new Error('Mongoose does not support calling populate() on nested ' +    'docs. Instead of `doc.arr[0].populate("path")`, use ' +    '`doc.populate("arr.0.path")`');};
/*! * ignore */
ArraySubdocument.prototype.$__removeFromParent = function() {  const _id = this._doc._id;  if (!_id) {    throw new Error('For your own good, Mongoose does not know ' +      'how to remove an ArraySubdocument that has no _id');  }  this.__parentArray.pull({ _id: _id });};
/** * Returns the full path to this document. If optional `path` is passed, it is appended to the full path. * * @param {String} [path] * @param {Boolean} [skipIndex] Skip adding the array index. For example `arr.foo` instead of `arr.0.foo`. * @return {String} * @api private * @method $__fullPath * @memberOf ArraySubdocument * @instance */
ArraySubdocument.prototype.$__fullPath = function(path, skipIndex) {  if (this.__index == null) {    return null;  }  if (!this.$__.fullPath) {    this.ownerDocument();  }
  if (skipIndex) {    return path ?      this.$__.fullPath + '.' + path :      this.$__.fullPath;  }
  return path ?    this.$__.fullPath + '.' + this.__index + '.' + path :    this.$__.fullPath + '.' + this.__index;};
/** * Given a path relative to this document, return the path relative * to the top-level document. * @method $__pathRelativeToParent * @memberOf ArraySubdocument * @instance * @api private */
ArraySubdocument.prototype.$__pathRelativeToParent = function(path, skipIndex) {  if (this.__index == null) {    return null;  }  if (skipIndex) {    return path == null ? this.__parentArray.$path() : this.__parentArray.$path() + '.' + path;  }  if (path == null) {    return this.__parentArray.$path() + '.' + this.__index;  }  return this.__parentArray.$path() + '.' + this.__index + '.' + path;};
/** * Returns this sub-documents parent document. * @method $parent * @memberOf ArraySubdocument * @instance * @api public */
ArraySubdocument.prototype.$parent = function() {  return this[documentArrayParent];};
/** * Returns this subdocument's parent array. * * #### Example: * *     const Test = mongoose.model('Test', new Schema({ *       docArr: [{ name: String }] *     })); *     const doc = new Test({ docArr: [{ name: 'test subdoc' }] }); * *     doc.docArr[0].parentArray() === doc.docArr; // true * * @api public * @method parentArray * @returns DocumentArray */
ArraySubdocument.prototype.parentArray = function() {  return this.__parentArray;};
/*! * Module exports. */
module.exports = ArraySubdocument;