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node_modules/es5-ext/object/is-copy-deep.js
| 59 lines
| 1.5 KiB
| application/javascript
| JavascriptLexer
|
| r789 | "use strict"; | |||
| var eq = require("./eq") | ||||
| , isPlainObject = require("./is-plain-object") | ||||
| , value = require("./valid-value"); | ||||
| var isArray = Array.isArray | ||||
| , keys = Object.keys | ||||
| , objPropertyIsEnumerable = Object.prototype.propertyIsEnumerable | ||||
| , objHasOwnProperty = Object.prototype.hasOwnProperty | ||||
| , eqArr | ||||
| , eqVal | ||||
| , eqObj; | ||||
| eqArr = function (arr1, arr2, recMap) { | ||||
| var i, length = arr1.length; | ||||
| if (length !== arr2.length) return false; | ||||
| for (i = 0; i < length; ++i) { | ||||
| if (objHasOwnProperty.call(arr1, i) !== objHasOwnProperty.call(arr2, i)) return false; | ||||
| if (!eqVal(arr1[i], arr2[i], recMap)) return false; | ||||
| } | ||||
| return true; | ||||
| }; | ||||
| eqObj = function (obj1, obj2, recMap) { | ||||
| var k1 = keys(obj1), k2 = keys(obj2); | ||||
| if (k1.length !== k2.length) return false; | ||||
| return k1.every(function (key) { | ||||
| if (!objPropertyIsEnumerable.call(obj2, key)) return false; | ||||
| return eqVal(obj1[key], obj2[key], recMap); | ||||
| }); | ||||
| }; | ||||
| eqVal = function (val1, val2, recMap) { | ||||
| var i, eqX, c1, c2; | ||||
| if (eq(val1, val2)) return true; | ||||
| if (isPlainObject(val1)) { | ||||
| if (!isPlainObject(val2)) return false; | ||||
| eqX = eqObj; | ||||
| } else if (isArray(val1) && isArray(val2)) { | ||||
| eqX = eqArr; | ||||
| } else { | ||||
| return false; | ||||
| } | ||||
| c1 = recMap[0]; | ||||
| c2 = recMap[1]; | ||||
| i = c1.indexOf(val1); | ||||
| if (i === -1) { | ||||
| i = c1.push(val1) - 1; | ||||
| c2[i] = []; | ||||
| } else if (c2[i].indexOf(val2) !== -1) return true; | ||||
| c2[i].push(val2); | ||||
| return eqX(val1, val2, recMap); | ||||
| }; | ||||
| module.exports = function (val1, val2) { | ||||
| if (eq(value(val1), value(val2))) return true; | ||||
| return eqVal(Object(val1), Object(val2), [[], []]); | ||||
| }; | ||||