338 lines
14 KiB
JavaScript
338 lines
14 KiB
JavaScript
var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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if (typeof b !== "function" && b !== null)
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throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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var __generator = (this && this.__generator) || function (thisArg, body) {
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var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
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return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
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function verb(n) { return function (v) { return step([n, v]); }; }
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function step(op) {
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if (f) throw new TypeError("Generator is already executing.");
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while (_) try {
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if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
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if (y = 0, t) op = [op[0] & 2, t.value];
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switch (op[0]) {
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case 0: case 1: t = op; break;
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case 4: _.label++; return { value: op[1], done: false };
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case 5: _.label++; y = op[1]; op = [0]; continue;
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case 7: op = _.ops.pop(); _.trys.pop(); continue;
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default:
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if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
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if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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if (t[2]) _.ops.pop();
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_.trys.pop(); continue;
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}
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op = body.call(thisArg, _);
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} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
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if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
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}
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};
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var __values = (this && this.__values) || function(o) {
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var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
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if (m) return m.call(o);
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if (o && typeof o.length === "number") return {
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next: function () {
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if (o && i >= o.length) o = void 0;
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return { value: o && o[i++], done: !o };
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}
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};
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throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
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};
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import HashContainer from './Base/index';
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import Vector from '../SequentialContainer/Vector';
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import OrderedMap from '../TreeContainer/OrderedMap';
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var HashMap = /** @class */ (function (_super) {
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__extends(HashMap, _super);
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function HashMap(container, initBucketNum, hashFunc) {
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if (container === void 0) { container = []; }
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var _this = _super.call(this, initBucketNum, hashFunc) || this;
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_this.hashTable = [];
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container.forEach(function (element) { return _this.setElement(element[0], element[1]); });
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return _this;
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}
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HashMap.prototype.reAllocate = function () {
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var _this = this;
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if (this.bucketNum >= HashContainer.maxBucketNum)
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return;
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var newHashTable = [];
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var originalBucketNum = this.bucketNum;
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this.bucketNum <<= 1;
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var keys = Object.keys(this.hashTable);
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var keyNums = keys.length;
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var _loop_1 = function (i) {
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var index = parseInt(keys[i]);
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var container = this_1.hashTable[index];
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var size = container.size();
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if (size === 0)
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return "continue";
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if (size === 1) {
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var element = container.front();
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newHashTable[this_1.hashFunc(element[0]) & (this_1.bucketNum - 1)] = new Vector([element], false);
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return "continue";
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}
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var lowList = [];
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var highList = [];
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container.forEach(function (element) {
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var hashCode = _this.hashFunc(element[0]);
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if ((hashCode & originalBucketNum) === 0) {
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lowList.push(element);
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}
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else
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highList.push(element);
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});
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if (container instanceof OrderedMap) {
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if (lowList.length > HashContainer.untreeifyThreshold) {
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newHashTable[index] = new OrderedMap(lowList);
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}
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else if (lowList.length) {
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newHashTable[index] = new Vector(lowList, false);
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}
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if (highList.length > HashContainer.untreeifyThreshold) {
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newHashTable[index + originalBucketNum] = new OrderedMap(highList);
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}
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else if (highList.length) {
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newHashTable[index + originalBucketNum] = new Vector(highList, false);
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}
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}
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else {
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if (lowList.length >= HashContainer.treeifyThreshold) {
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newHashTable[index] = new OrderedMap(lowList);
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}
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else if (lowList.length) {
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newHashTable[index] = new Vector(lowList, false);
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}
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if (highList.length >= HashContainer.treeifyThreshold) {
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newHashTable[index + originalBucketNum] = new OrderedMap(highList);
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}
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else if (highList.length) {
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newHashTable[index + originalBucketNum] = new Vector(highList, false);
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}
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}
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};
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var this_1 = this;
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for (var i = 0; i < keyNums; ++i) {
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_loop_1(i);
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}
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this.hashTable = newHashTable;
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};
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HashMap.prototype.forEach = function (callback) {
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var containers = Object.values(this.hashTable);
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var containersNum = containers.length;
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var index = 0;
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for (var i = 0; i < containersNum; ++i) {
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containers[i].forEach(function (element) { return callback(element, index++); });
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}
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};
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/**
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* @description Insert a new key-value pair to hash map or set value by key.
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* @param key The key you want to insert.
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* @param value The value you want to insert.
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* @example HashMap.setElement(1, 2); // insert a key-value pair [1, 2]
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*/
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HashMap.prototype.setElement = function (key, value) {
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var e_1, _a;
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var index = this.hashFunc(key) & (this.bucketNum - 1);
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var container = this.hashTable[index];
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if (!container) {
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this.length += 1;
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this.hashTable[index] = new Vector([[key, value]], false);
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}
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else {
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var preSize = container.size();
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if (container instanceof Vector) {
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try {
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for (var container_1 = __values(container), container_1_1 = container_1.next(); !container_1_1.done; container_1_1 = container_1.next()) {
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var pair = container_1_1.value;
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if (pair[0] === key) {
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pair[1] = value;
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return;
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}
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}
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}
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catch (e_1_1) { e_1 = { error: e_1_1 }; }
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finally {
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try {
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if (container_1_1 && !container_1_1.done && (_a = container_1.return)) _a.call(container_1);
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}
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finally { if (e_1) throw e_1.error; }
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}
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container.pushBack([key, value]);
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if (preSize + 1 >= HashMap.treeifyThreshold) {
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if (this.bucketNum <= HashMap.minTreeifySize) {
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this.length += 1;
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this.reAllocate();
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return;
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}
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this.hashTable[index] = new OrderedMap(this.hashTable[index]);
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}
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this.length += 1;
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}
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else {
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container.setElement(key, value);
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var curSize = container.size();
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this.length += curSize - preSize;
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}
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}
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if (this.length > this.bucketNum * HashMap.sigma) {
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this.reAllocate();
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}
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};
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/**
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* @description Get the value of the element which has the specified key.
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* @param key The key you want to get.
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*/
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HashMap.prototype.getElementByKey = function (key) {
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var e_2, _a;
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var index = this.hashFunc(key) & (this.bucketNum - 1);
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var container = this.hashTable[index];
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if (!container)
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return undefined;
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if (container instanceof OrderedMap) {
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return container.getElementByKey(key);
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}
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else {
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try {
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for (var container_2 = __values(container), container_2_1 = container_2.next(); !container_2_1.done; container_2_1 = container_2.next()) {
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var pair = container_2_1.value;
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if (pair[0] === key)
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return pair[1];
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}
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}
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catch (e_2_1) { e_2 = { error: e_2_1 }; }
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finally {
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try {
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if (container_2_1 && !container_2_1.done && (_a = container_2.return)) _a.call(container_2);
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}
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finally { if (e_2) throw e_2.error; }
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}
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return undefined;
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}
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};
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HashMap.prototype.eraseElementByKey = function (key) {
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var e_3, _a;
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var index = this.hashFunc(key) & (this.bucketNum - 1);
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var container = this.hashTable[index];
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if (!container)
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return;
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if (container instanceof Vector) {
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var pos = 0;
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try {
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for (var container_3 = __values(container), container_3_1 = container_3.next(); !container_3_1.done; container_3_1 = container_3.next()) {
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var pair = container_3_1.value;
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if (pair[0] === key) {
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container.eraseElementByPos(pos);
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this.length -= 1;
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return;
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}
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pos += 1;
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}
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}
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catch (e_3_1) { e_3 = { error: e_3_1 }; }
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finally {
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try {
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if (container_3_1 && !container_3_1.done && (_a = container_3.return)) _a.call(container_3);
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}
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finally { if (e_3) throw e_3.error; }
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}
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}
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else {
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var preSize = container.size();
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container.eraseElementByKey(key);
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var curSize = container.size();
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this.length += curSize - preSize;
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if (curSize <= HashContainer.untreeifyThreshold) {
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this.hashTable[index] = new Vector(container);
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}
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}
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};
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HashMap.prototype.find = function (key) {
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var e_4, _a;
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var index = this.hashFunc(key) & (this.bucketNum - 1);
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var container = this.hashTable[index];
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if (!container)
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return false;
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if (container instanceof OrderedMap) {
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return !container.find(key)
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.equals(container.end());
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}
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try {
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for (var container_4 = __values(container), container_4_1 = container_4.next(); !container_4_1.done; container_4_1 = container_4.next()) {
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var pair = container_4_1.value;
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if (pair[0] === key)
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return true;
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}
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}
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catch (e_4_1) { e_4 = { error: e_4_1 }; }
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finally {
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try {
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if (container_4_1 && !container_4_1.done && (_a = container_4.return)) _a.call(container_4);
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}
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finally { if (e_4) throw e_4.error; }
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}
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return false;
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};
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HashMap.prototype[Symbol.iterator] = function () {
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return function () {
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var containers, containersNum, i, container, container_5, container_5_1, element, e_5_1;
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var e_5, _a;
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return __generator(this, function (_b) {
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switch (_b.label) {
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case 0:
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containers = Object.values(this.hashTable);
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containersNum = containers.length;
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i = 0;
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_b.label = 1;
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case 1:
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if (!(i < containersNum)) return [3 /*break*/, 10];
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container = containers[i];
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_b.label = 2;
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case 2:
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_b.trys.push([2, 7, 8, 9]);
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container_5 = (e_5 = void 0, __values(container)), container_5_1 = container_5.next();
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_b.label = 3;
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case 3:
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if (!!container_5_1.done) return [3 /*break*/, 6];
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element = container_5_1.value;
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return [4 /*yield*/, element];
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case 4:
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_b.sent();
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_b.label = 5;
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case 5:
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container_5_1 = container_5.next();
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return [3 /*break*/, 3];
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case 6: return [3 /*break*/, 9];
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case 7:
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e_5_1 = _b.sent();
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e_5 = { error: e_5_1 };
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return [3 /*break*/, 9];
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case 8:
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try {
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if (container_5_1 && !container_5_1.done && (_a = container_5.return)) _a.call(container_5);
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}
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finally { if (e_5) throw e_5.error; }
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return [7 /*endfinally*/];
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case 9:
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++i;
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return [3 /*break*/, 1];
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case 10: return [2 /*return*/];
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}
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});
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}.bind(this)();
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};
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return HashMap;
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}(HashContainer));
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export default HashMap;
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