+++ /dev/null
-/**
- * lodash (Custom Build) <https://lodash.com/>
- * Build: `lodash modularize exports="npm" -o ./`
- * Copyright jQuery Foundation and other contributors <https://jquery.org/>
- * Released under MIT license <https://lodash.com/license>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- */
-
-/** Used as the size to enable large array optimizations. */
-var LARGE_ARRAY_SIZE = 200;
-
-/** Used to stand-in for `undefined` hash values. */
-var HASH_UNDEFINED = '__lodash_hash_undefined__';
-
-/** Used as references for various `Number` constants. */
-var MAX_SAFE_INTEGER = 9007199254740991;
-
-/** `Object#toString` result references. */
-var argsTag = '[object Arguments]',
- arrayTag = '[object Array]',
- boolTag = '[object Boolean]',
- dateTag = '[object Date]',
- errorTag = '[object Error]',
- funcTag = '[object Function]',
- genTag = '[object GeneratorFunction]',
- mapTag = '[object Map]',
- numberTag = '[object Number]',
- objectTag = '[object Object]',
- promiseTag = '[object Promise]',
- regexpTag = '[object RegExp]',
- setTag = '[object Set]',
- stringTag = '[object String]',
- symbolTag = '[object Symbol]',
- weakMapTag = '[object WeakMap]';
-
-var arrayBufferTag = '[object ArrayBuffer]',
- dataViewTag = '[object DataView]',
- float32Tag = '[object Float32Array]',
- float64Tag = '[object Float64Array]',
- int8Tag = '[object Int8Array]',
- int16Tag = '[object Int16Array]',
- int32Tag = '[object Int32Array]',
- uint8Tag = '[object Uint8Array]',
- uint8ClampedTag = '[object Uint8ClampedArray]',
- uint16Tag = '[object Uint16Array]',
- uint32Tag = '[object Uint32Array]';
-
-/**
- * Used to match `RegExp`
- * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
- */
-var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
-
-/** Used to match `RegExp` flags from their coerced string values. */
-var reFlags = /\w*$/;
-
-/** Used to detect host constructors (Safari). */
-var reIsHostCtor = /^\[object .+?Constructor\]$/;
-
-/** Used to detect unsigned integer values. */
-var reIsUint = /^(?:0|[1-9]\d*)$/;
-
-/** Used to identify `toStringTag` values supported by `_.clone`. */
-var cloneableTags = {};
-cloneableTags[argsTag] = cloneableTags[arrayTag] =
-cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
-cloneableTags[boolTag] = cloneableTags[dateTag] =
-cloneableTags[float32Tag] = cloneableTags[float64Tag] =
-cloneableTags[int8Tag] = cloneableTags[int16Tag] =
-cloneableTags[int32Tag] = cloneableTags[mapTag] =
-cloneableTags[numberTag] = cloneableTags[objectTag] =
-cloneableTags[regexpTag] = cloneableTags[setTag] =
-cloneableTags[stringTag] = cloneableTags[symbolTag] =
-cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
-cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
-cloneableTags[errorTag] = cloneableTags[funcTag] =
-cloneableTags[weakMapTag] = false;
-
-/** Detect free variable `global` from Node.js. */
-var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
-
-/** Detect free variable `self`. */
-var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
-
-/** Used as a reference to the global object. */
-var root = freeGlobal || freeSelf || Function('return this')();
-
-/** Detect free variable `exports`. */
-var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
-
-/** Detect free variable `module`. */
-var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
-
-/** Detect the popular CommonJS extension `module.exports`. */
-var moduleExports = freeModule && freeModule.exports === freeExports;
-
-/**
- * Adds the key-value `pair` to `map`.
- *
- * @private
- * @param {Object} map The map to modify.
- * @param {Array} pair The key-value pair to add.
- * @returns {Object} Returns `map`.
- */
-function addMapEntry(map, pair) {
- // Don't return `map.set` because it's not chainable in IE 11.
- map.set(pair[0], pair[1]);
- return map;
-}
-
-/**
- * Adds `value` to `set`.
- *
- * @private
- * @param {Object} set The set to modify.
- * @param {*} value The value to add.
- * @returns {Object} Returns `set`.
- */
-function addSetEntry(set, value) {
- // Don't return `set.add` because it's not chainable in IE 11.
- set.add(value);
- return set;
-}
-
-/**
- * A specialized version of `_.forEach` for arrays without support for
- * iteratee shorthands.
- *
- * @private
- * @param {Array} [array] The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns `array`.
- */
-function arrayEach(array, iteratee) {
- var index = -1,
- length = array ? array.length : 0;
-
- while (++index < length) {
- if (iteratee(array[index], index, array) === false) {
- break;
- }
- }
- return array;
-}
-
-/**
- * Appends the elements of `values` to `array`.
- *
- * @private
- * @param {Array} array The array to modify.
- * @param {Array} values The values to append.
- * @returns {Array} Returns `array`.
- */
-function arrayPush(array, values) {
- var index = -1,
- length = values.length,
- offset = array.length;
-
- while (++index < length) {
- array[offset + index] = values[index];
- }
- return array;
-}
-
-/**
- * A specialized version of `_.reduce` for arrays without support for
- * iteratee shorthands.
- *
- * @private
- * @param {Array} [array] The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {*} [accumulator] The initial value.
- * @param {boolean} [initAccum] Specify using the first element of `array` as
- * the initial value.
- * @returns {*} Returns the accumulated value.
- */
-function arrayReduce(array, iteratee, accumulator, initAccum) {
- var index = -1,
- length = array ? array.length : 0;
-
- if (initAccum && length) {
- accumulator = array[++index];
- }
- while (++index < length) {
- accumulator = iteratee(accumulator, array[index], index, array);
- }
- return accumulator;
-}
-
-/**
- * The base implementation of `_.times` without support for iteratee shorthands
- * or max array length checks.
- *
- * @private
- * @param {number} n The number of times to invoke `iteratee`.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns the array of results.
- */
-function baseTimes(n, iteratee) {
- var index = -1,
- result = Array(n);
-
- while (++index < n) {
- result[index] = iteratee(index);
- }
- return result;
-}
-
-/**
- * Gets the value at `key` of `object`.
- *
- * @private
- * @param {Object} [object] The object to query.
- * @param {string} key The key of the property to get.
- * @returns {*} Returns the property value.
- */
-function getValue(object, key) {
- return object == null ? undefined : object[key];
-}
-
-/**
- * Checks if `value` is a host object in IE < 9.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a host object, else `false`.
- */
-function isHostObject(value) {
- // Many host objects are `Object` objects that can coerce to strings
- // despite having improperly defined `toString` methods.
- var result = false;
- if (value != null && typeof value.toString != 'function') {
- try {
- result = !!(value + '');
- } catch (e) {}
- }
- return result;
-}
-
-/**
- * Converts `map` to its key-value pairs.
- *
- * @private
- * @param {Object} map The map to convert.
- * @returns {Array} Returns the key-value pairs.
- */
-function mapToArray(map) {
- var index = -1,
- result = Array(map.size);
-
- map.forEach(function(value, key) {
- result[++index] = [key, value];
- });
- return result;
-}
-
-/**
- * Creates a unary function that invokes `func` with its argument transformed.
- *
- * @private
- * @param {Function} func The function to wrap.
- * @param {Function} transform The argument transform.
- * @returns {Function} Returns the new function.
- */
-function overArg(func, transform) {
- return function(arg) {
- return func(transform(arg));
- };
-}
-
-/**
- * Converts `set` to an array of its values.
- *
- * @private
- * @param {Object} set The set to convert.
- * @returns {Array} Returns the values.
- */
-function setToArray(set) {
- var index = -1,
- result = Array(set.size);
-
- set.forEach(function(value) {
- result[++index] = value;
- });
- return result;
-}
-
-/** Used for built-in method references. */
-var arrayProto = Array.prototype,
- funcProto = Function.prototype,
- objectProto = Object.prototype;
-
-/** Used to detect overreaching core-js shims. */
-var coreJsData = root['__core-js_shared__'];
-
-/** Used to detect methods masquerading as native. */
-var maskSrcKey = (function() {
- var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
- return uid ? ('Symbol(src)_1.' + uid) : '';
-}());
-
-/** Used to resolve the decompiled source of functions. */
-var funcToString = funcProto.toString;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
- * of values.
- */
-var objectToString = objectProto.toString;
-
-/** Used to detect if a method is native. */
-var reIsNative = RegExp('^' +
- funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
- .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
-);
-
-/** Built-in value references. */
-var Buffer = moduleExports ? root.Buffer : undefined,
- Symbol = root.Symbol,
- Uint8Array = root.Uint8Array,
- getPrototype = overArg(Object.getPrototypeOf, Object),
- objectCreate = Object.create,
- propertyIsEnumerable = objectProto.propertyIsEnumerable,
- splice = arrayProto.splice;
-
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeGetSymbols = Object.getOwnPropertySymbols,
- nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
- nativeKeys = overArg(Object.keys, Object);
-
-/* Built-in method references that are verified to be native. */
-var DataView = getNative(root, 'DataView'),
- Map = getNative(root, 'Map'),
- Promise = getNative(root, 'Promise'),
- Set = getNative(root, 'Set'),
- WeakMap = getNative(root, 'WeakMap'),
- nativeCreate = getNative(Object, 'create');
-
-/** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = toSource(DataView),
- mapCtorString = toSource(Map),
- promiseCtorString = toSource(Promise),
- setCtorString = toSource(Set),
- weakMapCtorString = toSource(WeakMap);
-
-/** Used to convert symbols to primitives and strings. */
-var symbolProto = Symbol ? Symbol.prototype : undefined,
- symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;
-
-/**
- * Creates a hash object.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function Hash(entries) {
- var index = -1,
- length = entries ? entries.length : 0;
-
- this.clear();
- while (++index < length) {
- var entry = entries[index];
- this.set(entry[0], entry[1]);
- }
-}
-
-/**
- * Removes all key-value entries from the hash.
- *
- * @private
- * @name clear
- * @memberOf Hash
- */
-function hashClear() {
- this.__data__ = nativeCreate ? nativeCreate(null) : {};
-}
-
-/**
- * Removes `key` and its value from the hash.
- *
- * @private
- * @name delete
- * @memberOf Hash
- * @param {Object} hash The hash to modify.
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function hashDelete(key) {
- return this.has(key) && delete this.__data__[key];
-}
-
-/**
- * Gets the hash value for `key`.
- *
- * @private
- * @name get
- * @memberOf Hash
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function hashGet(key) {
- var data = this.__data__;
- if (nativeCreate) {
- var result = data[key];
- return result === HASH_UNDEFINED ? undefined : result;
- }
- return hasOwnProperty.call(data, key) ? data[key] : undefined;
-}
-
-/**
- * Checks if a hash value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf Hash
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function hashHas(key) {
- var data = this.__data__;
- return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);
-}
-
-/**
- * Sets the hash `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf Hash
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the hash instance.
- */
-function hashSet(key, value) {
- var data = this.__data__;
- data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
- return this;
-}
-
-// Add methods to `Hash`.
-Hash.prototype.clear = hashClear;
-Hash.prototype['delete'] = hashDelete;
-Hash.prototype.get = hashGet;
-Hash.prototype.has = hashHas;
-Hash.prototype.set = hashSet;
-
-/**
- * Creates an list cache object.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function ListCache(entries) {
- var index = -1,
- length = entries ? entries.length : 0;
-
- this.clear();
- while (++index < length) {
- var entry = entries[index];
- this.set(entry[0], entry[1]);
- }
-}
-
-/**
- * Removes all key-value entries from the list cache.
- *
- * @private
- * @name clear
- * @memberOf ListCache
- */
-function listCacheClear() {
- this.__data__ = [];
-}
-
-/**
- * Removes `key` and its value from the list cache.
- *
- * @private
- * @name delete
- * @memberOf ListCache
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function listCacheDelete(key) {
- var data = this.__data__,
- index = assocIndexOf(data, key);
-
- if (index < 0) {
- return false;
- }
- var lastIndex = data.length - 1;
- if (index == lastIndex) {
- data.pop();
- } else {
- splice.call(data, index, 1);
- }
- return true;
-}
-
-/**
- * Gets the list cache value for `key`.
- *
- * @private
- * @name get
- * @memberOf ListCache
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function listCacheGet(key) {
- var data = this.__data__,
- index = assocIndexOf(data, key);
-
- return index < 0 ? undefined : data[index][1];
-}
-
-/**
- * Checks if a list cache value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf ListCache
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function listCacheHas(key) {
- return assocIndexOf(this.__data__, key) > -1;
-}
-
-/**
- * Sets the list cache `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf ListCache
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the list cache instance.
- */
-function listCacheSet(key, value) {
- var data = this.__data__,
- index = assocIndexOf(data, key);
-
- if (index < 0) {
- data.push([key, value]);
- } else {
- data[index][1] = value;
- }
- return this;
-}
-
-// Add methods to `ListCache`.
-ListCache.prototype.clear = listCacheClear;
-ListCache.prototype['delete'] = listCacheDelete;
-ListCache.prototype.get = listCacheGet;
-ListCache.prototype.has = listCacheHas;
-ListCache.prototype.set = listCacheSet;
-
-/**
- * Creates a map cache object to store key-value pairs.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function MapCache(entries) {
- var index = -1,
- length = entries ? entries.length : 0;
-
- this.clear();
- while (++index < length) {
- var entry = entries[index];
- this.set(entry[0], entry[1]);
- }
-}
-
-/**
- * Removes all key-value entries from the map.
- *
- * @private
- * @name clear
- * @memberOf MapCache
- */
-function mapCacheClear() {
- this.__data__ = {
- 'hash': new Hash,
- 'map': new (Map || ListCache),
- 'string': new Hash
- };
-}
-
-/**
- * Removes `key` and its value from the map.
- *
- * @private
- * @name delete
- * @memberOf MapCache
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function mapCacheDelete(key) {
- return getMapData(this, key)['delete'](key);
-}
-
-/**
- * Gets the map value for `key`.
- *
- * @private
- * @name get
- * @memberOf MapCache
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function mapCacheGet(key) {
- return getMapData(this, key).get(key);
-}
-
-/**
- * Checks if a map value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf MapCache
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function mapCacheHas(key) {
- return getMapData(this, key).has(key);
-}
-
-/**
- * Sets the map `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf MapCache
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the map cache instance.
- */
-function mapCacheSet(key, value) {
- getMapData(this, key).set(key, value);
- return this;
-}
-
-// Add methods to `MapCache`.
-MapCache.prototype.clear = mapCacheClear;
-MapCache.prototype['delete'] = mapCacheDelete;
-MapCache.prototype.get = mapCacheGet;
-MapCache.prototype.has = mapCacheHas;
-MapCache.prototype.set = mapCacheSet;
-
-/**
- * Creates a stack cache object to store key-value pairs.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function Stack(entries) {
- this.__data__ = new ListCache(entries);
-}
-
-/**
- * Removes all key-value entries from the stack.
- *
- * @private
- * @name clear
- * @memberOf Stack
- */
-function stackClear() {
- this.__data__ = new ListCache;
-}
-
-/**
- * Removes `key` and its value from the stack.
- *
- * @private
- * @name delete
- * @memberOf Stack
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function stackDelete(key) {
- return this.__data__['delete'](key);
-}
-
-/**
- * Gets the stack value for `key`.
- *
- * @private
- * @name get
- * @memberOf Stack
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function stackGet(key) {
- return this.__data__.get(key);
-}
-
-/**
- * Checks if a stack value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf Stack
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function stackHas(key) {
- return this.__data__.has(key);
-}
-
-/**
- * Sets the stack `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf Stack
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the stack cache instance.
- */
-function stackSet(key, value) {
- var cache = this.__data__;
- if (cache instanceof ListCache) {
- var pairs = cache.__data__;
- if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
- pairs.push([key, value]);
- return this;
- }
- cache = this.__data__ = new MapCache(pairs);
- }
- cache.set(key, value);
- return this;
-}
-
-// Add methods to `Stack`.
-Stack.prototype.clear = stackClear;
-Stack.prototype['delete'] = stackDelete;
-Stack.prototype.get = stackGet;
-Stack.prototype.has = stackHas;
-Stack.prototype.set = stackSet;
-
-/**
- * Creates an array of the enumerable property names of the array-like `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @param {boolean} inherited Specify returning inherited property names.
- * @returns {Array} Returns the array of property names.
- */
-function arrayLikeKeys(value, inherited) {
- // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
- // Safari 9 makes `arguments.length` enumerable in strict mode.
- var result = (isArray(value) || isArguments(value))
- ? baseTimes(value.length, String)
- : [];
-
- var length = result.length,
- skipIndexes = !!length;
-
- for (var key in value) {
- if ((inherited || hasOwnProperty.call(value, key)) &&
- !(skipIndexes && (key == 'length' || isIndex(key, length)))) {
- result.push(key);
- }
- }
- return result;
-}
-
-/**
- * Assigns `value` to `key` of `object` if the existing value is not equivalent
- * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
- * for equality comparisons.
- *
- * @private
- * @param {Object} object The object to modify.
- * @param {string} key The key of the property to assign.
- * @param {*} value The value to assign.
- */
-function assignValue(object, key, value) {
- var objValue = object[key];
- if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
- (value === undefined && !(key in object))) {
- object[key] = value;
- }
-}
-
-/**
- * Gets the index at which the `key` is found in `array` of key-value pairs.
- *
- * @private
- * @param {Array} array The array to inspect.
- * @param {*} key The key to search for.
- * @returns {number} Returns the index of the matched value, else `-1`.
- */
-function assocIndexOf(array, key) {
- var length = array.length;
- while (length--) {
- if (eq(array[length][0], key)) {
- return length;
- }
- }
- return -1;
-}
-
-/**
- * The base implementation of `_.assign` without support for multiple sources
- * or `customizer` functions.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @returns {Object} Returns `object`.
- */
-function baseAssign(object, source) {
- return object && copyObject(source, keys(source), object);
-}
-
-/**
- * The base implementation of `_.clone` and `_.cloneDeep` which tracks
- * traversed objects.
- *
- * @private
- * @param {*} value The value to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @param {boolean} [isFull] Specify a clone including symbols.
- * @param {Function} [customizer] The function to customize cloning.
- * @param {string} [key] The key of `value`.
- * @param {Object} [object] The parent object of `value`.
- * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
- * @returns {*} Returns the cloned value.
- */
-function baseClone(value, isDeep, isFull, customizer, key, object, stack) {
- var result;
- if (customizer) {
- result = object ? customizer(value, key, object, stack) : customizer(value);
- }
- if (result !== undefined) {
- return result;
- }
- if (!isObject(value)) {
- return value;
- }
- var isArr = isArray(value);
- if (isArr) {
- result = initCloneArray(value);
- if (!isDeep) {
- return copyArray(value, result);
- }
- } else {
- var tag = getTag(value),
- isFunc = tag == funcTag || tag == genTag;
-
- if (isBuffer(value)) {
- return cloneBuffer(value, isDeep);
- }
- if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
- if (isHostObject(value)) {
- return object ? value : {};
- }
- result = initCloneObject(isFunc ? {} : value);
- if (!isDeep) {
- return copySymbols(value, baseAssign(result, value));
- }
- } else {
- if (!cloneableTags[tag]) {
- return object ? value : {};
- }
- result = initCloneByTag(value, tag, baseClone, isDeep);
- }
- }
- // Check for circular references and return its corresponding clone.
- stack || (stack = new Stack);
- var stacked = stack.get(value);
- if (stacked) {
- return stacked;
- }
- stack.set(value, result);
-
- if (!isArr) {
- var props = isFull ? getAllKeys(value) : keys(value);
- }
- arrayEach(props || value, function(subValue, key) {
- if (props) {
- key = subValue;
- subValue = value[key];
- }
- // Recursively populate clone (susceptible to call stack limits).
- assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack));
- });
- return result;
-}
-
-/**
- * The base implementation of `_.create` without support for assigning
- * properties to the created object.
- *
- * @private
- * @param {Object} prototype The object to inherit from.
- * @returns {Object} Returns the new object.
- */
-function baseCreate(proto) {
- return isObject(proto) ? objectCreate(proto) : {};
-}
-
-/**
- * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
- * `keysFunc` and `symbolsFunc` to get the enumerable property names and
- * symbols of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {Function} keysFunc The function to get the keys of `object`.
- * @param {Function} symbolsFunc The function to get the symbols of `object`.
- * @returns {Array} Returns the array of property names and symbols.
- */
-function baseGetAllKeys(object, keysFunc, symbolsFunc) {
- var result = keysFunc(object);
- return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
-}
-
-/**
- * The base implementation of `getTag`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the `toStringTag`.
- */
-function baseGetTag(value) {
- return objectToString.call(value);
-}
-
-/**
- * The base implementation of `_.isNative` without bad shim checks.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a native function,
- * else `false`.
- */
-function baseIsNative(value) {
- if (!isObject(value) || isMasked(value)) {
- return false;
- }
- var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
- return pattern.test(toSource(value));
-}
-
-/**
- * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- */
-function baseKeys(object) {
- if (!isPrototype(object)) {
- return nativeKeys(object);
- }
- var result = [];
- for (var key in Object(object)) {
- if (hasOwnProperty.call(object, key) && key != 'constructor') {
- result.push(key);
- }
- }
- return result;
-}
-
-/**
- * Creates a clone of `buffer`.
- *
- * @private
- * @param {Buffer} buffer The buffer to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Buffer} Returns the cloned buffer.
- */
-function cloneBuffer(buffer, isDeep) {
- if (isDeep) {
- return buffer.slice();
- }
- var result = new buffer.constructor(buffer.length);
- buffer.copy(result);
- return result;
-}
-
-/**
- * Creates a clone of `arrayBuffer`.
- *
- * @private
- * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
- * @returns {ArrayBuffer} Returns the cloned array buffer.
- */
-function cloneArrayBuffer(arrayBuffer) {
- var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
- new Uint8Array(result).set(new Uint8Array(arrayBuffer));
- return result;
-}
-
-/**
- * Creates a clone of `dataView`.
- *
- * @private
- * @param {Object} dataView The data view to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned data view.
- */
-function cloneDataView(dataView, isDeep) {
- var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
- return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
-}
-
-/**
- * Creates a clone of `map`.
- *
- * @private
- * @param {Object} map The map to clone.
- * @param {Function} cloneFunc The function to clone values.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned map.
- */
-function cloneMap(map, isDeep, cloneFunc) {
- var array = isDeep ? cloneFunc(mapToArray(map), true) : mapToArray(map);
- return arrayReduce(array, addMapEntry, new map.constructor);
-}
-
-/**
- * Creates a clone of `regexp`.
- *
- * @private
- * @param {Object} regexp The regexp to clone.
- * @returns {Object} Returns the cloned regexp.
- */
-function cloneRegExp(regexp) {
- var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
- result.lastIndex = regexp.lastIndex;
- return result;
-}
-
-/**
- * Creates a clone of `set`.
- *
- * @private
- * @param {Object} set The set to clone.
- * @param {Function} cloneFunc The function to clone values.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned set.
- */
-function cloneSet(set, isDeep, cloneFunc) {
- var array = isDeep ? cloneFunc(setToArray(set), true) : setToArray(set);
- return arrayReduce(array, addSetEntry, new set.constructor);
-}
-
-/**
- * Creates a clone of the `symbol` object.
- *
- * @private
- * @param {Object} symbol The symbol object to clone.
- * @returns {Object} Returns the cloned symbol object.
- */
-function cloneSymbol(symbol) {
- return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
-}
-
-/**
- * Creates a clone of `typedArray`.
- *
- * @private
- * @param {Object} typedArray The typed array to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned typed array.
- */
-function cloneTypedArray(typedArray, isDeep) {
- var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
- return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
-}
-
-/**
- * Copies the values of `source` to `array`.
- *
- * @private
- * @param {Array} source The array to copy values from.
- * @param {Array} [array=[]] The array to copy values to.
- * @returns {Array} Returns `array`.
- */
-function copyArray(source, array) {
- var index = -1,
- length = source.length;
-
- array || (array = Array(length));
- while (++index < length) {
- array[index] = source[index];
- }
- return array;
-}
-
-/**
- * Copies properties of `source` to `object`.
- *
- * @private
- * @param {Object} source The object to copy properties from.
- * @param {Array} props The property identifiers to copy.
- * @param {Object} [object={}] The object to copy properties to.
- * @param {Function} [customizer] The function to customize copied values.
- * @returns {Object} Returns `object`.
- */
-function copyObject(source, props, object, customizer) {
- object || (object = {});
-
- var index = -1,
- length = props.length;
-
- while (++index < length) {
- var key = props[index];
-
- var newValue = customizer
- ? customizer(object[key], source[key], key, object, source)
- : undefined;
-
- assignValue(object, key, newValue === undefined ? source[key] : newValue);
- }
- return object;
-}
-
-/**
- * Copies own symbol properties of `source` to `object`.
- *
- * @private
- * @param {Object} source The object to copy symbols from.
- * @param {Object} [object={}] The object to copy symbols to.
- * @returns {Object} Returns `object`.
- */
-function copySymbols(source, object) {
- return copyObject(source, getSymbols(source), object);
-}
-
-/**
- * Creates an array of own enumerable property names and symbols of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names and symbols.
- */
-function getAllKeys(object) {
- return baseGetAllKeys(object, keys, getSymbols);
-}
-
-/**
- * Gets the data for `map`.
- *
- * @private
- * @param {Object} map The map to query.
- * @param {string} key The reference key.
- * @returns {*} Returns the map data.
- */
-function getMapData(map, key) {
- var data = map.__data__;
- return isKeyable(key)
- ? data[typeof key == 'string' ? 'string' : 'hash']
- : data.map;
-}
-
-/**
- * Gets the native function at `key` of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {string} key The key of the method to get.
- * @returns {*} Returns the function if it's native, else `undefined`.
- */
-function getNative(object, key) {
- var value = getValue(object, key);
- return baseIsNative(value) ? value : undefined;
-}
-
-/**
- * Creates an array of the own enumerable symbol properties of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of symbols.
- */
-var getSymbols = nativeGetSymbols ? overArg(nativeGetSymbols, Object) : stubArray;
-
-/**
- * Gets the `toStringTag` of `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the `toStringTag`.
- */
-var getTag = baseGetTag;
-
-// Fallback for data views, maps, sets, and weak maps in IE 11,
-// for data views in Edge < 14, and promises in Node.js.
-if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
- (Map && getTag(new Map) != mapTag) ||
- (Promise && getTag(Promise.resolve()) != promiseTag) ||
- (Set && getTag(new Set) != setTag) ||
- (WeakMap && getTag(new WeakMap) != weakMapTag)) {
- getTag = function(value) {
- var result = objectToString.call(value),
- Ctor = result == objectTag ? value.constructor : undefined,
- ctorString = Ctor ? toSource(Ctor) : undefined;
-
- if (ctorString) {
- switch (ctorString) {
- case dataViewCtorString: return dataViewTag;
- case mapCtorString: return mapTag;
- case promiseCtorString: return promiseTag;
- case setCtorString: return setTag;
- case weakMapCtorString: return weakMapTag;
- }
- }
- return result;
- };
-}
-
-/**
- * Initializes an array clone.
- *
- * @private
- * @param {Array} array The array to clone.
- * @returns {Array} Returns the initialized clone.
- */
-function initCloneArray(array) {
- var length = array.length,
- result = array.constructor(length);
-
- // Add properties assigned by `RegExp#exec`.
- if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
- result.index = array.index;
- result.input = array.input;
- }
- return result;
-}
-
-/**
- * Initializes an object clone.
- *
- * @private
- * @param {Object} object The object to clone.
- * @returns {Object} Returns the initialized clone.
- */
-function initCloneObject(object) {
- return (typeof object.constructor == 'function' && !isPrototype(object))
- ? baseCreate(getPrototype(object))
- : {};
-}
-
-/**
- * Initializes an object clone based on its `toStringTag`.
- *
- * **Note:** This function only supports cloning values with tags of
- * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
- *
- * @private
- * @param {Object} object The object to clone.
- * @param {string} tag The `toStringTag` of the object to clone.
- * @param {Function} cloneFunc The function to clone values.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the initialized clone.
- */
-function initCloneByTag(object, tag, cloneFunc, isDeep) {
- var Ctor = object.constructor;
- switch (tag) {
- case arrayBufferTag:
- return cloneArrayBuffer(object);
-
- case boolTag:
- case dateTag:
- return new Ctor(+object);
-
- case dataViewTag:
- return cloneDataView(object, isDeep);
-
- case float32Tag: case float64Tag:
- case int8Tag: case int16Tag: case int32Tag:
- case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
- return cloneTypedArray(object, isDeep);
-
- case mapTag:
- return cloneMap(object, isDeep, cloneFunc);
-
- case numberTag:
- case stringTag:
- return new Ctor(object);
-
- case regexpTag:
- return cloneRegExp(object);
-
- case setTag:
- return cloneSet(object, isDeep, cloneFunc);
-
- case symbolTag:
- return cloneSymbol(object);
- }
-}
-
-/**
- * Checks if `value` is a valid array-like index.
- *
- * @private
- * @param {*} value The value to check.
- * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
- * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
- */
-function isIndex(value, length) {
- length = length == null ? MAX_SAFE_INTEGER : length;
- return !!length &&
- (typeof value == 'number' || reIsUint.test(value)) &&
- (value > -1 && value % 1 == 0 && value < length);
-}
-
-/**
- * Checks if `value` is suitable for use as unique object key.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
- */
-function isKeyable(value) {
- var type = typeof value;
- return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
- ? (value !== '__proto__')
- : (value === null);
-}
-
-/**
- * Checks if `func` has its source masked.
- *
- * @private
- * @param {Function} func The function to check.
- * @returns {boolean} Returns `true` if `func` is masked, else `false`.
- */
-function isMasked(func) {
- return !!maskSrcKey && (maskSrcKey in func);
-}
-
-/**
- * Checks if `value` is likely a prototype object.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
- */
-function isPrototype(value) {
- var Ctor = value && value.constructor,
- proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
-
- return value === proto;
-}
-
-/**
- * Converts `func` to its source code.
- *
- * @private
- * @param {Function} func The function to process.
- * @returns {string} Returns the source code.
- */
-function toSource(func) {
- if (func != null) {
- try {
- return funcToString.call(func);
- } catch (e) {}
- try {
- return (func + '');
- } catch (e) {}
- }
- return '';
-}
-
-/**
- * This method is like `_.clone` except that it recursively clones `value`.
- *
- * @static
- * @memberOf _
- * @since 1.0.0
- * @category Lang
- * @param {*} value The value to recursively clone.
- * @returns {*} Returns the deep cloned value.
- * @see _.clone
- * @example
- *
- * var objects = [{ 'a': 1 }, { 'b': 2 }];
- *
- * var deep = _.cloneDeep(objects);
- * console.log(deep[0] === objects[0]);
- * // => false
- */
-function cloneDeep(value) {
- return baseClone(value, true, true);
-}
-
-/**
- * Performs a
- * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
- * comparison between two values to determine if they are equivalent.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
- * @example
- *
- * var object = { 'a': 1 };
- * var other = { 'a': 1 };
- *
- * _.eq(object, object);
- * // => true
- *
- * _.eq(object, other);
- * // => false
- *
- * _.eq('a', 'a');
- * // => true
- *
- * _.eq('a', Object('a'));
- * // => false
- *
- * _.eq(NaN, NaN);
- * // => true
- */
-function eq(value, other) {
- return value === other || (value !== value && other !== other);
-}
-
-/**
- * Checks if `value` is likely an `arguments` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an `arguments` object,
- * else `false`.
- * @example
- *
- * _.isArguments(function() { return arguments; }());
- * // => true
- *
- * _.isArguments([1, 2, 3]);
- * // => false
- */
-function isArguments(value) {
- // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
- return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
- (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
-}
-
-/**
- * Checks if `value` is classified as an `Array` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array, else `false`.
- * @example
- *
- * _.isArray([1, 2, 3]);
- * // => true
- *
- * _.isArray(document.body.children);
- * // => false
- *
- * _.isArray('abc');
- * // => false
- *
- * _.isArray(_.noop);
- * // => false
- */
-var isArray = Array.isArray;
-
-/**
- * Checks if `value` is array-like. A value is considered array-like if it's
- * not a function and has a `value.length` that's an integer greater than or
- * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
- * @example
- *
- * _.isArrayLike([1, 2, 3]);
- * // => true
- *
- * _.isArrayLike(document.body.children);
- * // => true
- *
- * _.isArrayLike('abc');
- * // => true
- *
- * _.isArrayLike(_.noop);
- * // => false
- */
-function isArrayLike(value) {
- return value != null && isLength(value.length) && !isFunction(value);
-}
-
-/**
- * This method is like `_.isArrayLike` except that it also checks if `value`
- * is an object.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array-like object,
- * else `false`.
- * @example
- *
- * _.isArrayLikeObject([1, 2, 3]);
- * // => true
- *
- * _.isArrayLikeObject(document.body.children);
- * // => true
- *
- * _.isArrayLikeObject('abc');
- * // => false
- *
- * _.isArrayLikeObject(_.noop);
- * // => false
- */
-function isArrayLikeObject(value) {
- return isObjectLike(value) && isArrayLike(value);
-}
-
-/**
- * Checks if `value` is a buffer.
- *
- * @static
- * @memberOf _
- * @since 4.3.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
- * @example
- *
- * _.isBuffer(new Buffer(2));
- * // => true
- *
- * _.isBuffer(new Uint8Array(2));
- * // => false
- */
-var isBuffer = nativeIsBuffer || stubFalse;
-
-/**
- * Checks if `value` is classified as a `Function` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a function, else `false`.
- * @example
- *
- * _.isFunction(_);
- * // => true
- *
- * _.isFunction(/abc/);
- * // => false
- */
-function isFunction(value) {
- // The use of `Object#toString` avoids issues with the `typeof` operator
- // in Safari 8-9 which returns 'object' for typed array and other constructors.
- var tag = isObject(value) ? objectToString.call(value) : '';
- return tag == funcTag || tag == genTag;
-}
-
-/**
- * Checks if `value` is a valid array-like length.
- *
- * **Note:** This method is loosely based on
- * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
- * @example
- *
- * _.isLength(3);
- * // => true
- *
- * _.isLength(Number.MIN_VALUE);
- * // => false
- *
- * _.isLength(Infinity);
- * // => false
- *
- * _.isLength('3');
- * // => false
- */
-function isLength(value) {
- return typeof value == 'number' &&
- value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
-}
-
-/**
- * Checks if `value` is the
- * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
- * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(_.noop);
- * // => true
- *
- * _.isObject(null);
- * // => false
- */
-function isObject(value) {
- var type = typeof value;
- return !!value && (type == 'object' || type == 'function');
-}
-
-/**
- * Checks if `value` is object-like. A value is object-like if it's not `null`
- * and has a `typeof` result of "object".
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- * @example
- *
- * _.isObjectLike({});
- * // => true
- *
- * _.isObjectLike([1, 2, 3]);
- * // => true
- *
- * _.isObjectLike(_.noop);
- * // => false
- *
- * _.isObjectLike(null);
- * // => false
- */
-function isObjectLike(value) {
- return !!value && typeof value == 'object';
-}
-
-/**
- * Creates an array of the own enumerable property names of `object`.
- *
- * **Note:** Non-object values are coerced to objects. See the
- * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
- * for more details.
- *
- * @static
- * @since 0.1.0
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- * @example
- *
- * function Foo() {
- * this.a = 1;
- * this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.keys(new Foo);
- * // => ['a', 'b'] (iteration order is not guaranteed)
- *
- * _.keys('hi');
- * // => ['0', '1']
- */
-function keys(object) {
- return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
-}
-
-/**
- * This method returns a new empty array.
- *
- * @static
- * @memberOf _
- * @since 4.13.0
- * @category Util
- * @returns {Array} Returns the new empty array.
- * @example
- *
- * var arrays = _.times(2, _.stubArray);
- *
- * console.log(arrays);
- * // => [[], []]
- *
- * console.log(arrays[0] === arrays[1]);
- * // => false
- */
-function stubArray() {
- return [];
-}
-
-/**
- * This method returns `false`.
- *
- * @static
- * @memberOf _
- * @since 4.13.0
- * @category Util
- * @returns {boolean} Returns `false`.
- * @example
- *
- * _.times(2, _.stubFalse);
- * // => [false, false]
- */
-function stubFalse() {
- return false;
-}
-
-module.exports = cloneDeep;
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