You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
1.5 KiB
60 lines
1.5 KiB
2 years ago
|
"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), [[], []]);
|
||
|
|
};
|