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Diffstat (limited to 'node_modules/deep-extend/lib/deep-extend.js')
-rw-r--r-- | node_modules/deep-extend/lib/deep-extend.js | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/node_modules/deep-extend/lib/deep-extend.js b/node_modules/deep-extend/lib/deep-extend.js deleted file mode 100644 index 651fd8d..0000000 --- a/node_modules/deep-extend/lib/deep-extend.js +++ /dev/null @@ -1,150 +0,0 @@ -/*! - * @description Recursive object extending - * @author Viacheslav Lotsmanov <lotsmanov89@gmail.com> - * @license MIT - * - * The MIT License (MIT) - * - * Copyright (c) 2013-2018 Viacheslav Lotsmanov - * - * Permission is hereby granted, free of charge, to any person obtaining a copy of - * this software and associated documentation files (the "Software"), to deal in - * the Software without restriction, including without limitation the rights to - * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of - * the Software, and to permit persons to whom the Software is furnished to do so, - * subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all - * copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR - * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER - * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -'use strict'; - -function isSpecificValue(val) { - return ( - val instanceof Buffer - || val instanceof Date - || val instanceof RegExp - ) ? true : false; -} - -function cloneSpecificValue(val) { - if (val instanceof Buffer) { - var x = Buffer.alloc - ? Buffer.alloc(val.length) - : new Buffer(val.length); - val.copy(x); - return x; - } else if (val instanceof Date) { - return new Date(val.getTime()); - } else if (val instanceof RegExp) { - return new RegExp(val); - } else { - throw new Error('Unexpected situation'); - } -} - -/** - * Recursive cloning array. - */ -function deepCloneArray(arr) { - var clone = []; - arr.forEach(function (item, index) { - if (typeof item === 'object' && item !== null) { - if (Array.isArray(item)) { - clone[index] = deepCloneArray(item); - } else if (isSpecificValue(item)) { - clone[index] = cloneSpecificValue(item); - } else { - clone[index] = deepExtend({}, item); - } - } else { - clone[index] = item; - } - }); - return clone; -} - -function safeGetProperty(object, property) { - return property === '__proto__' ? undefined : object[property]; -} - -/** - * Extening object that entered in first argument. - * - * Returns extended object or false if have no target object or incorrect type. - * - * If you wish to clone source object (without modify it), just use empty new - * object as first argument, like this: - * deepExtend({}, yourObj_1, [yourObj_N]); - */ -var deepExtend = module.exports = function (/*obj_1, [obj_2], [obj_N]*/) { - if (arguments.length < 1 || typeof arguments[0] !== 'object') { - return false; - } - - if (arguments.length < 2) { - return arguments[0]; - } - - var target = arguments[0]; - - // convert arguments to array and cut off target object - var args = Array.prototype.slice.call(arguments, 1); - - var val, src, clone; - - args.forEach(function (obj) { - // skip argument if isn't an object, is null, or is an array - if (typeof obj !== 'object' || obj === null || Array.isArray(obj)) { - return; - } - - Object.keys(obj).forEach(function (key) { - src = safeGetProperty(target, key); // source value - val = safeGetProperty(obj, key); // new value - - // recursion prevention - if (val === target) { - return; - - /** - * if new value isn't object then just overwrite by new value - * instead of extending. - */ - } else if (typeof val !== 'object' || val === null) { - target[key] = val; - return; - - // just clone arrays (and recursive clone objects inside) - } else if (Array.isArray(val)) { - target[key] = deepCloneArray(val); - return; - - // custom cloning and overwrite for specific objects - } else if (isSpecificValue(val)) { - target[key] = cloneSpecificValue(val); - return; - - // overwrite by new value if source isn't object or array - } else if (typeof src !== 'object' || src === null || Array.isArray(src)) { - target[key] = deepExtend({}, val); - return; - - // source value and new value is objects both, extending... - } else { - target[key] = deepExtend(src, val); - return; - } - }); - }); - - return target; -}; |