mirror of
https://scm.univ-tours.fr/22107988t/rappaurio-sae501_502.git
synced 2025-08-29 01:55:58 +02:00
3268 lines
101 KiB
JavaScript
3268 lines
101 KiB
JavaScript
/**
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||
* @name CeL function for compatibility
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* @fileoverview 本檔案包含了 new ECMAScript standard 標準已規定，但先前版本未具備的內建物件功能；以及相容性 test
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* 專用的 functions。<br />
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* ES6 shim / polyfill<br />
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* 部分標準功能已經包含於 ce.js。
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*
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* @see see Set, Map @ _structure/dependency_chain.js
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*
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* 注意: 本檔案可能會被省略執行，因此不應有標準之外的設定，應將之放置於 data.native。
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*
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* More examples: see /_test suite/test.js
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*
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* @since
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* @see https://www.audero.it/blog/2016/12/05/monkey-patching-javascript/
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* @see https://tc39.es/proposal-collection-methods/
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* @see https://github.com/tc39/proposals
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* @see https://github.com/Financial-Times/polyfill-library/tree/master/polyfills
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* @see <a
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* href="http://msdn.microsoft.com/en-us/library/s4esdbwz%28v=VS.85%29.aspx"
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* accessdate="2010/4/16 20:4">Version Information (Windows Scripting -
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* JScript)</a> http://espadrine.github.io/New-In-A-Spec/es2017/
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*/
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'use strict';
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// 'use asm';
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// --------------------------------------------------------------------------------------------
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typeof CeL === 'function' && CeL.run({
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// module name
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name : 'data.code.compatibility',
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// This module should NOT require other modules!
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// nothing required.
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// 本 module 為許多 module 所用，應盡可能勿 requiring 其他 module。
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// require : '',
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// 設定不匯出的子函式。
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// no_extend : '*',
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// 為了方便格式化程式碼，因此將 module 函式主體另外抽出。
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code : module_code
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});
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function module_code(library_namespace) {
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/**
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* null module constructor
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*
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* @class 標準已規定，但先前版本未具備的功能；以及相容性 test 專用的 functions。
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*/
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var _// JSDT:_module_
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= function() {
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// null module constructor
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};
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/**
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* for JSDT: 有 prototype 才會將之當作 Class
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*/
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_// JSDT:_module_
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.prototype = {};
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// cache
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var Array_slice = Array.prototype.slice,
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// cache
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set_method = library_namespace.set_method,
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/**
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* The index return when not found.<br />
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* 未發現之index。未找到時的 index。基本上與程式碼設計合一，僅表示名義，不可更改。(=== -1)
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*
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* @type {Number}
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* @constant
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*/
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NOT_FOUND = ''.indexOf('_');
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// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
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/**
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* TODO:
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*
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* http://www.comsharp.com/GetKnowledge/zh-CN/It_News_K875.aspx<br />
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* 8進制數字表示被禁止， 010 代表 10 而不是 8
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*
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* http://jquerymobile.com/gbs/
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*/
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var main_version = 0, full_version = '';
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// for IE/NS only
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if (typeof window !== 'undefined' && window.ScriptEngine) {
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library_namespace.debug(library_namespace
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.is_type(ScriptEngineMajorVersion), 2);
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main_version = window.ScriptEngineMajorVersion() + '.'
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+ window.ScriptEngineMinorVersion();
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full_version = window.ScriptEngine() + ' ' + main_version + '.'
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+ window.ScriptEngineBuildVersion();
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main_version = Number(main_version);
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} else if (false
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// java test: 加了下面這段在 FF3 會召喚出 java! IE中沒有java object.
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// old: object, new: function (?)
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// && (typeof java == 'function' || typeof java == 'object') && java
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) {
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library_namespace.debug("Today is "
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+ java.text.SimpleDateFormat("EEEE-MMMM-dd-yyyy").format(
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new java.util.Date()));
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if (main_version = java.lang.System.getProperty('os.name') + ' '
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+ java.lang.System.getProperty('os.version') + ' '
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+ java.lang.System.getProperty('os.arch'))
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full_version = main_version;
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else
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main_version = 0;
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}
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if (full_version)
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library_namespace.debug('Script engine: ' + full_version);
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/**
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* 版本檢查.
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*
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* @param {Number}version
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* 最低 version
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*/
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function check_version(version) {
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if (!library_namespace.is_digits(version) || version < 5)
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version = 5;
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if (typeof WScript !== 'undefined' && WScript.Version < version) {
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// WScript.FullName, WScript.Path
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var Locale = library_namespace.env.locale, promptTitle = Locale == 0x411 ? 'アップグレードしませんか？'
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: '請升級', promptC = Locale == 0x411 ? "今使ってる "
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+ WScript.Name
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+ " のバージョンは古過ぎるから、\nMicrosoft Windows スクリプト テクノロジ Web サイトより\nバージョン "
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+ WScript.Version + " から " + version + " 以上にアップグレードしましょう。"
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: "正使用的 " + WScript.Name
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+ " 版本過舊，\n請至 Microsoft Windows 網站將版本由 "
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+ WScript.Version + " 升級到 " + version + " 以上。", url = /* Locale==0x411? */"http://www.microsoft.com/japan/developer/scripting/default.htm";
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if (1 == WScript.Popup(promptC, 0, promptTitle, 1 + 48))
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WshShell.Run(url);
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WScript.Quit(1);
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}
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}
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// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
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// global object
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var globalThis = library_namespace.env.global;
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if (false && (!globalThis.global || globalThis.global !== globalThis)) {
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// Object.defineProperty() defined in base.js
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Object.defineProperty(globalThis, 'global', {
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configurable : true,
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enumerable : false,
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value : globalThis,
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writable : false
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});
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}
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if (!globalThis.globalThis || globalThis.globalThis !== globalThis) {
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// e.g., node-v10.19.0
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// Object.defineProperty() defined in base.js
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Object.defineProperty(globalThis, 'globalThis', {
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configurable : true,
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enumerable : false,
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value : globalThis,
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writable : false
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});
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}
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set_method(globalThis, {
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encodeURI : escape,
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decodeURI : unescape,
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encodeURIComponent : encodeURI,
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decodeURIComponent : decodeURI,
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isNaN : function(value) {
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// parseFloat(value)
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// var a = typeof value == 'number' ? value : parseInt(value);
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// alert(typeof a + ',' + a + ',' + (a === a));
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/**
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* 變數可以與其本身比較。如果比較結果不相等，則它會是 NaN。原因是 NaN 是唯一與其本身不相等的值。
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*
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* A reliable way for ECMAScript code to test if a value X is a NaN
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* is an expression of the form X !== X. The result will be true if
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* and only if X is a NaN.
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*/
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// return /* typeof value=='number'&& */a != a;
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value = Number(value);
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return value !== value;
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},
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// isFinite(null) === true
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isFinite : function isFinite(value) {
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// https://tc39.es/ecma262/#sec-isfinite-number
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return Number.isFinite(Number(value));
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}
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}, null);
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// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
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// Object.*
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if (typeof Object.freeze === 'function')
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try {
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// https://github.com/es-shims/es5-shim/blob/master/es5-sham.js
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Object.freeze(function() {
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});
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} catch (e) {
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var Object_freeze = Object.freeze;
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Object.freeze = function freeze_Object(object) {
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return typeof object == 'function' ? Object_freeze(object)
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: object;
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};
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}
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if (!Object.setPrototypeOf) {
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var Object_getPrototypeOf, Object_setPrototypeOf;
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// test prototype chain
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Inheritance_and_the_prototype_chain
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if (typeof {}.__proto__ === 'object') {
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// http://ejohn.org/blog/objectgetprototypeof/
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// https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Object/GetPrototypeOf
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// http://perfectionkills.com/how-ecmascript-5-still-does-not-allow-to-subclass-an-array/
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Object_getPrototypeOf = function(object) {
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return object.__proto__;
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};
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Object_setPrototypeOf = function(object, prototype) {
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object.__proto__ = prototype;
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return object;
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};
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set_method(Object, {
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getPrototypeOf : Object_getPrototypeOf,
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setPrototypeOf : Object_setPrototypeOf
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});
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} else if ({}.constructor && {}.constructor.prototype) {
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Object_getPrototypeOf = function(object) {
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return object.constructor.prototype;
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};
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Object_setPrototypeOf = function(object, prototype) {
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object.constructor.prototype = prototype;
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return object;
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};
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set_method(Object, {
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getPrototypeOf : Object_getPrototypeOf,
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setPrototypeOf : Object_setPrototypeOf
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});
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}
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}
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// IE 8, JScript 5.8.23141 中，DOM 可能沒有 .hasOwnProperty()。
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var hasOwnProperty = Object.prototype.hasOwnProperty
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// Object.getOwnPropertyDescriptor(object, 'property')
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|| function hasOwnProperty(key) {
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try {
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// Object.getPrototypeOf() 返回給定對象的原型。
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var prototype = Object.getPrototypeOf(this);
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return (key in this)
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//
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&& (!(key in prototype) || this[key] !== prototype[key]);
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} catch (e) {
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// TODO: handle exception
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}
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};
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// Object.keys(): get Object keys, 列出對象中所有可以枚舉的屬性 (Enumerable Only)
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// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Object/keys
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// 可用來防止 .prototype 帶來之 properties。e.g., @ IE
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// cf. Object.getOwnPropertyNames() 會列出對象中所有可枚舉以及不可枚舉的屬性 (enumerable or
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// non-enumerable)
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function Object_keys(object) {
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var keys = [];
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try {
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for ( var key in object) {
|
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if (Object.hasOwn(object, key))
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keys.push(key);
|
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}
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|
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} catch (e) {
|
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// TODO: handle exception
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}
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return keys;
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}
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/**
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* @deprecatred
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*/
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function getPropertyNames() {
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return Object.keys(this);
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}
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function getOwnPropertyDescriptor(object, property) {
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if (Object.hasOwn(object, property)) {
|
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return {
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configurable : true,
|
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enumerable : true,
|
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value : object[property],
|
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writable : true
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};
|
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}
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}
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function getOwnPropertyDescriptors(object) {
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var descriptors = Object.create(null);
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// for...in 循環也枚舉原型鏈中的屬性
|
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for ( var property in object) {
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var descriptor = Object.getOwnPropertyDescriptor(object, property);
|
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if (descriptor)
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descriptors[property] = descriptor;
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}
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return descriptors;
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}
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// https://tc39.github.io/ecma262/#sec-object.values
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/values
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// http://www.2ality.com/2015/11/stage3-object-entries.html
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// Object.values()
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function Object_values(object) {
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var values = [];
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for (var keys = Object.keys(object), index = 0, length = keys.length; index < length; index++) {
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values.push(object[keys[index]]);
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}
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return values;
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||
|
||
return Object.keys(object).map(function(key) {
|
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return object[key];
|
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});
|
||
}
|
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|
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// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries
|
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// Object.entries()
|
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function Object_entries(object) {
|
||
var entries = [];
|
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for (var keys = Object.keys(object), index = 0, length = keys.length; index < length; index++) {
|
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var key = keys[index];
|
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entries.push([ key, object[key] ]);
|
||
}
|
||
return entries;
|
||
|
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return Object.keys(object).map(function(key) {
|
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// [ key, value ]
|
||
return [ key, object[key] ];
|
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});
|
||
}
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||
|
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// Object.fromEntries()
|
||
function fromEntries(iterable) {
|
||
var object = Object.create(null);
|
||
|
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iterable.forEach(function(pair) {
|
||
// pair = [ key, value ]
|
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object[pair[0]] = pair[1];
|
||
});
|
||
|
||
return object;
|
||
}
|
||
|
||
set_method(Object, {
|
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// 鎖定物件。
|
||
// Object.seal()
|
||
seal : function seal(object) {
|
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// 無法以舊的語法實現。
|
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return object;
|
||
},
|
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// Object.isSealed()
|
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isSealed : function isSealed(object) {
|
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// 若欲更嚴謹些，可依照經驗法則，避開無法測試的 write-only 物件、或一改變就會產生後續影響的 object，
|
||
// 並對 object 作變更測試，確保 object 真的具有不可變更之性質。
|
||
return false;
|
||
},
|
||
// Object.preventExtensions()
|
||
preventExtensions : function preventExtensions(object) {
|
||
// 無法以舊的語法實現。
|
||
return object;
|
||
},
|
||
// Object.isExtensible()
|
||
isExtensible : function isExtensible(object) {
|
||
return true;
|
||
},
|
||
|
||
// Object.freeze()
|
||
freeze : function freeze(object) {
|
||
// 無法以舊的語法實現。
|
||
return object;
|
||
},
|
||
// Object.isFrozen()
|
||
isFrozen : function isFrozen(object) {
|
||
// 無法以舊的語法實現。
|
||
return false;
|
||
},
|
||
|
||
// Object.is(): Return SameValue(value_1, value_2).
|
||
// 以 SameValue Algorithm 判斷。
|
||
is : function is(value_1, value_2) {
|
||
return value_1 === value_2 ? value_1 !== 0
|
||
// check +0 and -0
|
||
|| 1 / value_1
|
||
// 為 JsDoc 換行。
|
||
=== 1 / value_2
|
||
// check NaN. May use Number.isNaN() as well.
|
||
: value_1 !== value_1 && value_2 !== value_2;
|
||
},
|
||
|
||
// Object.fromEntries()
|
||
fromEntries : fromEntries,
|
||
|
||
// Object.keys(): get Object keys, 列出對象中所有可以枚舉的屬性 (enumerable only)
|
||
keys : Object_keys,
|
||
values : Object_values,
|
||
entries : Object_entries,
|
||
|
||
// Object.hasOwn(object, property)
|
||
// https://github.com/tc39/proposal-accessible-object-hasownproperty
|
||
hasOwn : function hasOwn(object, property) {
|
||
return hasOwnProperty.call(object, property);
|
||
},
|
||
|
||
// Object.getOwnPropertyDescriptor()
|
||
getOwnPropertyDescriptor : getOwnPropertyDescriptor,
|
||
// Object.getOwnPropertyDescriptors()
|
||
getOwnPropertyDescriptors : getOwnPropertyDescriptors,
|
||
// Object.getOwnPropertyNames()
|
||
// 會列出對象中所有可枚舉以及不可枚舉的屬性 (enumerable or non-enumerable)
|
||
// 列出的比 Object.keys() 多
|
||
getOwnPropertyNames : Object_keys
|
||
});
|
||
|
||
// 會造成幾乎每個使用 for(.. in Object)，而不是使用 Object.keys() 的，都出現問題。
|
||
if (false)
|
||
set_method(Object.prototype, {
|
||
// getPropertyNames : getPropertyNames,
|
||
hasOwnProperty : hasOwnProperty
|
||
});
|
||
|
||
// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
|
||
// Array.*
|
||
|
||
// Array.prototype.at(), String.prototype.at(), typed_array.at()
|
||
// https://github.com/tc39/proposal-relative-indexing-method#polyfill
|
||
function get_item_at(index) {
|
||
index = ToInteger(index);
|
||
var length = this.length;
|
||
// Allow negative indexing from the end
|
||
if (index < 0)
|
||
index += length;
|
||
// incase (a=[])[-3]=3;a.at(-3);
|
||
if (0 <= index && index < length) {
|
||
// typeof this === 'object' @ HTA (HTML Application) @ Windows 10
|
||
// return this instanceof String ? this.charAt(index) : this[index];
|
||
return this.charAt ? this.charAt(index) : this[index];
|
||
}
|
||
}
|
||
|
||
// 稀疏矩陣 (sparse matrix) 用的 Array.prototype.some()
|
||
// 要到 index > 1e7 比較感覺得出來。
|
||
// e.g.,
|
||
// a=[];a[1e7]=2;alert(a.some(function(v){return v===2}));
|
||
// a=[];a[1e7]=2;alert(a.sparse_some(function(v){return v===2}));
|
||
function sparse_some(callback, thisArg) {
|
||
for ( var index in this)
|
||
if (!isNaN(index))
|
||
if (thisArg ? callback.call(thisArg, this[index], index, this)
|
||
// 不採用 .call() 以加速執行。
|
||
: callback(this[index], index, this))
|
||
return true;
|
||
return false;
|
||
}
|
||
|
||
// 稀疏矩陣 (sparse matrix) 用的 Array.prototype.every()
|
||
// 要到 index > 1e7 比較感覺得出來。
|
||
function sparse_every(callback, thisArg) {
|
||
for ( var index in this)
|
||
if (!isNaN(index))
|
||
if (!(thisArg ? callback
|
||
.call(thisArg, this[index], index, this)
|
||
// 不採用 .call() 以加速執行。
|
||
: callback(this[index], index, this)))
|
||
return false;
|
||
return true;
|
||
}
|
||
|
||
// 測試 for ( ... in array ) 時，會依順序提供 index。
|
||
if (typeof Array.prototype.some !== 'function')
|
||
(function() {
|
||
var array = [], result = [];
|
||
array[4] = 4;
|
||
array[2] = 2;
|
||
array[0] = 0;
|
||
for ( var index in array)
|
||
if (!isNaN(index))
|
||
result.push(index);
|
||
// CeL.log(result.join());
|
||
|
||
if (library_namespace.env.sequenced_Array = result.join() === '0,2,4')
|
||
set_method(Array.prototype, {
|
||
sparse_some : sparse_some,
|
||
sparse_every : sparse_every
|
||
});
|
||
})();
|
||
|
||
set_method(Array, {
|
||
// Array.of()
|
||
of : function of() {
|
||
return Array_slice.call(arguments);
|
||
}
|
||
});
|
||
|
||
function normalize_position(position, length) {
|
||
return position < 0 && (position += length) < 0 ? 0
|
||
//
|
||
: (position |= 0) > length ? length : position;
|
||
}
|
||
|
||
// Array.prototype.copyWithin(target, start[, end = this.length])
|
||
function copyWithin(target, start, end) {
|
||
var length = this.length;
|
||
start = normalize_position(start, length);
|
||
end = normalize_position(end || length, length);
|
||
target = normalize_position(target, length);
|
||
if (target < start || end <= target)
|
||
while (start < end)
|
||
this[target++] = this[start++];
|
||
else if (target !== start) {
|
||
if (length < target + start) {
|
||
end -= target - start;
|
||
target = length;
|
||
} else
|
||
target += start;
|
||
// 反向（後→前） copy，確保 copy from 不曾被本操作汙染過。
|
||
while (start < end)
|
||
this[--target] = this[--end];
|
||
}
|
||
return this;
|
||
}
|
||
|
||
// https://github.com/tc39/proposal-flatMap
|
||
function flat(depth) {
|
||
if (depth === undefined)
|
||
depth = 1;
|
||
else
|
||
depth |= 0;
|
||
|
||
var array = [];
|
||
|
||
function push_item(_this, _depth) {
|
||
_depth--;
|
||
_this.forEach(function(item) {
|
||
if (_depth >= 0 && Array.isArray(item))
|
||
push_item(item, _depth);
|
||
else
|
||
array.push(item);
|
||
});
|
||
}
|
||
push_item(this, depth);
|
||
|
||
return array;
|
||
}
|
||
|
||
function flatMap(mapperFunction, thisArg) {
|
||
if (false) {
|
||
return this.map(
|
||
thisArg ? mapperFunction.bind(thisArg) : mapperFunction)
|
||
.flat();
|
||
}
|
||
|
||
var array = [];
|
||
|
||
this.forEach(function(item) {
|
||
item = thisArg ? mapperFunction.call(thisArg, item)
|
||
: mapperFunction(item);
|
||
if (Array.isArray(item))
|
||
item.forEach(function(_item) {
|
||
array.push(_item);
|
||
});
|
||
else
|
||
array.push(item);
|
||
});
|
||
|
||
return array;
|
||
}
|
||
|
||
set_method(Array.prototype, {
|
||
/** <code>Array.prototype.copyWithin(target, start [ , end ])</code> */
|
||
copyWithin : copyWithin,
|
||
|
||
// https://github.com/tc39/proposal-relative-indexing-method#polyfill
|
||
at : get_item_at,
|
||
|
||
// Array.prototype.includes()
|
||
// part of the Harmony (ECMAScript 7) proposal.
|
||
// http://www.2ality.com/2016/01/ecmascript-2016.html
|
||
includes : function Array_includes(search_target, position) {
|
||
if (search_target === search_target)
|
||
return this.indexOf(search_target, position) !== NOT_FOUND;
|
||
// assert: search_target is NaN
|
||
var length = this.length;
|
||
// position = normalize_position(position, length);
|
||
if (position < 0 && (position += length) < 0)
|
||
position = 0;
|
||
else if ((position |= 0) > length)
|
||
position = length;
|
||
for (; position < length; position++)
|
||
if (this[position] !== this[position])
|
||
return true;
|
||
return false;
|
||
},
|
||
// Array.prototype.reduce()
|
||
reduce : function reduce(callbackfn/* , initialValue */) {
|
||
var index = 0, length = this.length, value;
|
||
if (arguments.length > 1)
|
||
value = arguments[1];
|
||
else
|
||
// initialValue
|
||
for (; index < length; index++)
|
||
if (index in this) {
|
||
value = this[index++];
|
||
break;
|
||
}
|
||
for (; index < length; index++)
|
||
if (index in this)
|
||
value = callbackfn(value, this[index], index, this);
|
||
return value;
|
||
},
|
||
// Array.prototype.reduceRight()
|
||
reduceRight : function reduceRight(callbackfn
|
||
// , initialValue
|
||
) {
|
||
var index = this.length, value;
|
||
if (arguments.length > 1)
|
||
value = arguments[1];
|
||
else
|
||
// initialValue
|
||
while (index-- > 0)
|
||
if (index in this) {
|
||
value = this[index];
|
||
break;
|
||
}
|
||
while (index-- > 0)
|
||
if (index in this)
|
||
value = callbackfn(value, this[index], index, this);
|
||
return value;
|
||
},
|
||
|
||
// Array.prototype.entries()
|
||
entries : function entries() {
|
||
// new Array_Iterator(array, use value)
|
||
return new library_namespace.Array_Iterator(this);
|
||
},
|
||
// Array.prototype.values()
|
||
values : function values() {
|
||
// new Array_Iterator(array, use value)
|
||
return new library_namespace.Array_Iterator(this, true);
|
||
},
|
||
// Array.prototype.keys()
|
||
keys : function Array_keys() {
|
||
var keys = [];
|
||
for ( var key in this)
|
||
if (/^\d+$/.test(key))
|
||
keys.push(key | 0);
|
||
library_namespace.debug('keys: ' + keys, 5,
|
||
//
|
||
'Array.prototype.keys');
|
||
return new library_namespace.Array_Iterator(keys, true);
|
||
},
|
||
|
||
// Array.prototype.findIndex()
|
||
findIndex : function findIndex(predicate, thisArg) {
|
||
for (var index = 0, length = this.length; index < length; index++)
|
||
if (index in this)
|
||
if (thisArg ? predicate.call(thisArg, this[index], index,
|
||
this)
|
||
// 不採用 .call() 以加速執行。
|
||
: predicate(this[index], index, this))
|
||
return index;
|
||
return NOT_FOUND;
|
||
},
|
||
// Array.prototype.find()
|
||
find : function find(predicate, thisArg) {
|
||
var index = this.findIndex(predicate, thisArg);
|
||
if (index !== NOT_FOUND)
|
||
return this[index];
|
||
// return undefined;
|
||
},
|
||
// https://github.com/tc39/proposal-array-find-from-last
|
||
// Array.prototype.findLastIndex()
|
||
findLastIndex : function findLastIndex(predicate, thisArg) {
|
||
for (var index = this.length; index > 0;)
|
||
if (--index in this)
|
||
if (thisArg ? predicate.call(thisArg, this[index], index,
|
||
this)
|
||
// 不採用 .call() 以加速執行。
|
||
: predicate(this[index], index, this))
|
||
return index;
|
||
return NOT_FOUND;
|
||
},
|
||
// Array.prototype.findLast()
|
||
findLast : function findLast(predicate, thisArg) {
|
||
var index = this.findLastIndex(predicate, thisArg);
|
||
if (index !== NOT_FOUND)
|
||
return this[index];
|
||
// return undefined;
|
||
},
|
||
|
||
// Array.prototype.some()
|
||
some : function some(callback, thisArg) {
|
||
for (var index = 0, length = this.length; index < length; index++)
|
||
if (index in this)
|
||
if (thisArg ? callback.call(thisArg, this[index], index,
|
||
this)
|
||
// 不採用 .call() 以加速執行。
|
||
: callback(this[index], index, this))
|
||
return true;
|
||
return false;
|
||
},
|
||
// Array.prototype.every()
|
||
every : function every(callback, thisArg) {
|
||
for (var index = 0, length = this.length; index < length; index++)
|
||
if (index in this)
|
||
if (!(thisArg ? callback.call(thisArg, this[index], index,
|
||
this)
|
||
// 不採用 .call() 以加速執行。
|
||
: callback(this[index], index, this)))
|
||
return false;
|
||
return true;
|
||
},
|
||
|
||
// Array.prototype.map()
|
||
map : function map(callback, thisArg) {
|
||
var result = [];
|
||
this.forEach(function() {
|
||
result.push(callback.apply(this, arguments));
|
||
}, thisArg);
|
||
return result;
|
||
},
|
||
// Array.prototype.filter()
|
||
filter : function map(callback, thisArg) {
|
||
var result = [];
|
||
this.forEach(function(value) {
|
||
if (callback.apply(this, arguments))
|
||
result.push(value);
|
||
}, thisArg);
|
||
return result;
|
||
},
|
||
|
||
// Array.prototype.flat
|
||
flat : flat,
|
||
// Array.prototype.flatMap
|
||
flatMap : flatMap,
|
||
|
||
// Array.prototype.indexOf ( searchElement [ , fromIndex ] )
|
||
indexOf : function indexOf(searchElement, fromIndex) {
|
||
fromIndex |= 0;
|
||
var length = this.length;
|
||
if (fromIndex < 0 && (fromIndex += length) < 0)
|
||
fromIndex = 0;
|
||
|
||
for (; fromIndex < length; fromIndex++)
|
||
if (searchElement === this[fromIndex])
|
||
return fromIndex;
|
||
return NOT_FOUND;
|
||
},
|
||
// Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] )
|
||
lastIndexOf : function lastIndexOf(searchElement, fromIndex) {
|
||
var length = this.length;
|
||
if (isNaN(fromIndex))
|
||
fromIndex = length - 1;
|
||
else if ((fromIndex |= 0) < 0)
|
||
fromIndex += length;
|
||
else
|
||
fromIndex = Math.min(fromIndex, length - 1);
|
||
|
||
for (; 0 <= fromIndex; fromIndex--)
|
||
if (searchElement === this[fromIndex])
|
||
return fromIndex;
|
||
return NOT_FOUND;
|
||
},
|
||
// Array.prototype.fill()
|
||
fill : function fill(value, start, end) {
|
||
// Array.prototype.fill() 只會作用於 0~原先的 length 範圍內！
|
||
if (isNaN(end) || this.length < (end |= 0))
|
||
end = this.length;
|
||
else if (end < 0)
|
||
end += this.length;
|
||
for (var index = start || 0; index < end;)
|
||
this[index++] = value;
|
||
return this;
|
||
},
|
||
/**
|
||
* 對於舊版沒有 Array.push() 等函數時之判別及處置。<br />
|
||
* 不能用t=this.valueOf(); ... this.push(t);
|
||
*/
|
||
// Array.prototype.push()
|
||
push : function push() {
|
||
var i = 0, l = arguments.length, w = this.length;
|
||
// 在 FF3 僅用 this[this.length]=o; 效率略好於 Array.push()，
|
||
// 但 Chrome 6 相反。
|
||
for (; i < l; i++)
|
||
this[w++] = arguments[i];
|
||
return w;
|
||
},
|
||
// Array.prototype.pop()
|
||
pop : function pop() {
|
||
// 不能用 return this[--this.length];
|
||
var l = this.length, v;
|
||
if (l) {
|
||
v = this[l];
|
||
this.length--;
|
||
}
|
||
return v;
|
||
},
|
||
// Array.prototype.shift()
|
||
shift : function shift() {
|
||
var v = this[0];
|
||
// ECMAScript 不允許設定 this=
|
||
this.value = this.slice(1);
|
||
return v;
|
||
},
|
||
// Array.prototype.unshift()
|
||
unshift : function unshift() {
|
||
// ECMAScript 不允許設定 this =
|
||
this.value = Array_slice.call(arguments).concat(this);
|
||
return this.length;
|
||
}
|
||
}, null);
|
||
|
||
// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
|
||
|
||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Typed_arrays
|
||
// It's hard to fully simulate typed arrays.
|
||
// 只能把原先即存在的功能加強到可用。
|
||
var typed_arrays = [];
|
||
if (typeof Uint32Array === 'function')
|
||
(function() {
|
||
var Array_prototype = Array.prototype,
|
||
// TODO: .slice() and others
|
||
typed_array_methods = 'copyWithin,entries,every,fill,filter,find,findIndex,forEach,includes,indexOf,join,keys,lastIndexOf,map,reduce,reduceRight,reverse,set,slice,some,subarray,values,at'
|
||
.split(',');
|
||
'Int8Array,Uint8Array,Uint8ClampedArray,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array'
|
||
//
|
||
.split(',').forEach(function(typed_array) {
|
||
try {
|
||
typed_array = eval(typed_array);
|
||
} catch (e) {
|
||
library_namespace.warn('Not exist: ' + typed_array);
|
||
return;
|
||
}
|
||
var prototype = typed_array.prototype;
|
||
typed_array_methods.forEach(function(method) {
|
||
if (!(method in typed_array.prototype))
|
||
Object.defineProperty(prototype, method, {
|
||
value : Array_prototype[method]
|
||
});
|
||
});
|
||
typed_arrays.push(typed_array);
|
||
});
|
||
})();
|
||
|
||
if (typed_arrays.length === 0)
|
||
typed_arrays = null;
|
||
|
||
_.typed_arrays = typed_arrays;
|
||
|
||
// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
|
||
// Number.*
|
||
|
||
// 1. === 1.0
|
||
|
||
function ToNumber(value) {
|
||
// Number(value)
|
||
return +value;
|
||
}
|
||
|
||
// cf. value | 0
|
||
/** <code>((Number.MAX_SAFE_INTEGER / 4) | 0) < 0, 0 < ((Number.MAX_SAFE_INTEGER / 5) | 0)</code> */
|
||
function ToInteger(value) {
|
||
return Math.trunc(value) || 0;
|
||
|
||
// return value >> 0;
|
||
|
||
// https://tc39.es/ecma262/#sec-tointeger
|
||
value = Number(value);
|
||
return value > 0 ? Math.floor(value) : value < 0 ? -Math.floor(value)
|
||
: 0;
|
||
}
|
||
|
||
// Number.isNaN()
|
||
// http://wiki.ecmascript.org/doku.php?id=harmony:number.isnan
|
||
function is_NaN(value) {
|
||
return typeof value === 'number' &&
|
||
// isNaN(value)
|
||
value !== value;
|
||
}
|
||
|
||
// calculatable
|
||
/**
|
||
* 取得最小最低可做除法計算數值。回傳值為邊界，已不可再做操作。但可做乘法操作。
|
||
*
|
||
* @param [base_integral]
|
||
* @returns {Number}
|
||
*/
|
||
function dividable_minimum(base_integral, return_last) {
|
||
if (!base_integral || isNaN(base_integral))
|
||
base_integral = 1;
|
||
var last = 1, min;
|
||
// 預防 min 變成0，因此設置前一步 last。
|
||
while (base_integral !== base_integral + (min = last / 2))
|
||
last = min;
|
||
return !return_last && min || last;
|
||
}
|
||
|
||
// calculatable
|
||
/**
|
||
* 取得最大可做加法計算數值。回傳值為邊界，已不可再做加法操作。但可做減法操作。
|
||
*
|
||
* @param [base_integral]
|
||
* @returns {Integer}
|
||
*/
|
||
function addable_maximum(base_integral) {
|
||
if (!base_integral || isNaN(base_integral))
|
||
base_integral = 1;
|
||
var max = 1, test;
|
||
while ((max *= 2) < (test = max + base_integral)
|
||
&& max === test - base_integral)
|
||
;
|
||
return max;
|
||
}
|
||
var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || addable_maximum() - 1;
|
||
// Number.isSafeInteger()
|
||
function isSafeInteger(number) {
|
||
return typeof number === 'number'
|
||
|
||
// && number <= MAX_SAFE_INTEGER && -MAX_SAFE_INTEGER <= number
|
||
&& Math.abs(number) <= MAX_SAFE_INTEGER
|
||
|
||
// 在範圍外的，常常 % 1 亦為 0。
|
||
&& 0 === number % 1
|
||
// && Math.floor(number) === number
|
||
;
|
||
}
|
||
|
||
set_method(Number, {
|
||
/**
|
||
* The value of Number.MAX_SAFE_INTEGER is the largest integer value
|
||
* that can be represented as a Number value without losing precision,
|
||
* which is 9007199254740991 (2^53-1).
|
||
*/
|
||
MAX_SAFE_INTEGER : MAX_SAFE_INTEGER,
|
||
/**
|
||
* The value of Number.MIN_SAFE_INTEGER is -9007199254740991
|
||
* (-(2^53-1)).
|
||
*/
|
||
MIN_SAFE_INTEGER : -MAX_SAFE_INTEGER,
|
||
/**
|
||
* The value of Number.EPSILON is the difference between 1 and the
|
||
* smallest value greater than 1 that is representable as a Number
|
||
* value, which is approximately 2.2204460492503130808472633361816 x
|
||
* 10-16.
|
||
*/
|
||
EPSILON : dividable_minimum(0, 1)
|
||
}, 'number');
|
||
|
||
set_method(Number, {
|
||
isSafeInteger : isSafeInteger,
|
||
/**
|
||
* Number.toInteger() is obsolete.
|
||
* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/toInteger
|
||
* Number.toInteger was part of the draft ECMAScript 6 specification,
|
||
* but has been removed on August 23, 2013 in Draft Rev 17.
|
||
*/
|
||
// toInteger: ToInteger,
|
||
/**
|
||
* Number.isInteger()<br />
|
||
* cf. .is_digits()
|
||
*/
|
||
isInteger : function isInteger(number) {
|
||
// https://tc39.es/ecma262/#sec-number.isinteger
|
||
return Number.isFinite(number)
|
||
// Math.floor(Infinity) === Infinity
|
||
&& ToInteger(number) === number;
|
||
},
|
||
parseFloat : parseFloat,
|
||
parseInt : parseInt,
|
||
/**
|
||
* Number.isNaN()
|
||
*/
|
||
isNaN : is_NaN,
|
||
isFinite : function isFinite(value) {
|
||
return typeof value === 'number' && !isNaN(value)
|
||
&& value !== Infinity && value !== -Infinity;
|
||
}
|
||
});
|
||
|
||
// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
|
||
// Math.*
|
||
// https://rwaldron.github.io/proposal-math-extensions/
|
||
|
||
// 32 bits
|
||
var BITS = 1;
|
||
while (1 !== 1 << BITS)
|
||
BITS <<= 1;
|
||
// assert: BITS === 32
|
||
|
||
// Math.clz32()
|
||
// TODO: 增進效率。
|
||
function clz32(value) {
|
||
// ToUint32() ??
|
||
value >>>= 0;
|
||
// console.log(value + ' = ' + value.toString(2) + ' (2)');
|
||
// binary search: 計算數字本身具有的 bits.
|
||
for (var min = 0, MAX = BITS, zeros;;) {
|
||
zeros = (min + MAX) >> 1;
|
||
// console.log(min + ' - ' + zeros + ' - ' + MAX);
|
||
if (0 === value >> zeros)
|
||
if (MAX === zeros)
|
||
break;
|
||
else
|
||
MAX = zeros;
|
||
else if (min === zeros)
|
||
break;
|
||
else
|
||
min = zeros;
|
||
}
|
||
return BITS - MAX;
|
||
}
|
||
|
||
// 分界
|
||
var Math_hypot_up_boundary = Math.sqrt(Number.MAX_SAFE_INTEGER) / 2 | 0,
|
||
//
|
||
Math_hypot_down_boundary = Math.sqrt(Number.MIN_VALUE);
|
||
|
||
// Math.hypot(value_1 , value_2, value_3 = 0)
|
||
// TODO: 增進效率。
|
||
// http://en.wikipedia.org/wiki/Hypot
|
||
function hypot(value_1, value_2, value_3) {
|
||
var r, MAX = Math.max(value_1 = Math.abs(value_1),
|
||
// 轉正
|
||
value_2 = Math.abs(value_2),
|
||
//
|
||
value_3 = value_3 === undefined ? 0 : Math.abs(value_3));
|
||
if (!MAX || !Number.isFinite(MAX))
|
||
return MAX;
|
||
|
||
if (MAX < Math_hypot_up_boundary
|
||
// avoid underflow
|
||
&& Math_hypot_down_boundary < Math.min(value_1, value_2,
|
||
value_3)
|
||
// avoid overflow, minimise rounding errors (預防本該為整數的出現小數).
|
||
&& Number.isFinite(r = value_1 * value_1 + value_2 * value_2
|
||
+ value_3 * value_3))
|
||
return Math.sqrt(r);
|
||
|
||
return MAX
|
||
* Math.sqrt((value_1 ? (value_1 /= MAX) * value_1 : 0)
|
||
+ (value_2 ? (value_2 /= MAX) * value_2 : 0)
|
||
+ (value_3 ? (value_3 /= MAX) * value_3 : 0));
|
||
}
|
||
|
||
set_method(Math, {
|
||
LN2 : Math.log(2),
|
||
LN10 : Math.log(10)
|
||
}, 'number');
|
||
|
||
var expm1_error = 1e-5;
|
||
|
||
set_method(Math, {
|
||
expm1 : function expm1(value) {
|
||
// If x is −0, the result is −0.
|
||
if (!value)
|
||
return value;
|
||
// 在這範圍外不會有誤差。
|
||
// x = 1e-5; Math.expm1(x) === Math.exp(x) - 1
|
||
if (Math.abs(value) > expm1_error)
|
||
return Math.exp(value) - 1;
|
||
|
||
// 提高精準度。
|
||
// x = 1e-6; Math.expm1(x) > Math.exp(x) - 1
|
||
|
||
// http://www.wolframalpha.com/input/?i=e^x-1
|
||
// Taylor series: x+x^2/2+x^3/6+x^4/24+x^5/120+O(x^6)
|
||
var delta = value,
|
||
|
||
index = 1, result = value;
|
||
// 頂多跑個 2~3 次就該結束了。
|
||
while (result + (delta *= value / ++index) !== result)
|
||
result += delta;
|
||
return result;
|
||
},
|
||
|
||
// hyperbolic functions
|
||
// https://en.wikipedia.org/wiki/Hyperbolic_function
|
||
sinh : function sinh(value) {
|
||
// If x is −0, the result is −0.
|
||
return value ? Math.abs(value) > expm1_error
|
||
//
|
||
? (Math.exp(value) - Math.exp(-value)) / 2
|
||
//
|
||
: (Math.expm1(value) - Math.expm1(-value)) / 2
|
||
//
|
||
: value;
|
||
},
|
||
cosh : function cosh(value) {
|
||
// If x is −0, the result is −0.
|
||
return value ? (value = Math.abs(value)) < 19
|
||
//
|
||
? (Math.exp(value) + Math.exp(-value)) / 2
|
||
// value = 19;
|
||
// Math.exp(value) + Math.exp(-value) === Math.exp(value);
|
||
: Math.exp(value) / 2 : value;
|
||
},
|
||
tanh : function tanh(value) {
|
||
if (!value)
|
||
// If x is −0, the result is −0.
|
||
return value;
|
||
// value = 19;
|
||
// Math.exp(value) + Math.exp(-value) === Math.exp(value);
|
||
if (Math.abs(value) > 19)
|
||
// If x is +∞, the result is +1.
|
||
return value > 0 ? 1 : -1;
|
||
var e = Math.exp(value), me = Math.exp(-value);
|
||
return (Math.abs(value) < expm1_error
|
||
// 提高精準度。
|
||
? Math.expm1(value) - Math.expm1(-value) : e - me) / (e + me);
|
||
},
|
||
|
||
// https://en.wikipedia.org/wiki/Hyperbolic_function#Inverse_functions_as_logarithms
|
||
// inverse hyperbolic function
|
||
// https://en.wikipedia.org/wiki/Inverse_hyperbolic_function
|
||
asinh : function asinh(value) {
|
||
// If x is −0, the result is −0.
|
||
if (!value)
|
||
return value;
|
||
// http://www.wolframalpha.com/input/?i=asinh+x
|
||
var v = Math.abs(value);
|
||
v = Math.log(v + Math.sqrt(v * v + 1));
|
||
return value < 0 ? -v : v;
|
||
},
|
||
acosh : function acosh(value) {
|
||
// http://www.wolframalpha.com/input/?i=acosh+x
|
||
return Math.log(value + Math.sqrt(value * value - 1));
|
||
},
|
||
atanh : function atanh(value) {
|
||
// If x is −0, the result is −0.
|
||
return value ? Math.log((1 + value) /
|
||
// 為 JsDoc 換行。
|
||
(1 - value)) / 2 : value;
|
||
},
|
||
|
||
// Math.log2()
|
||
log2 : function log2(value) {
|
||
// return Math.log(value) / Math.LN2;
|
||
return Math.log(value) * Math.LOG2E;
|
||
},
|
||
// Math.log10()
|
||
log10 : function log10(value) {
|
||
// 採用 /Math.LN10 會造成 Math.log10(1e-12) !== -12
|
||
// return Math.log(value) / Math.LN10;
|
||
return Math.log(value) * Math.LOG10E;
|
||
},
|
||
log1p : function log1p(value) {
|
||
// If x is −0, the result is −0.
|
||
return value ? Math.log(1 + value) : value;
|
||
},
|
||
|
||
hypot : hypot,
|
||
cbrt : function cbrt(value) {
|
||
// If x is −0, the result is −0.
|
||
return value ? Math.pow(value, 1 / 3) : value;
|
||
},
|
||
|
||
clz32 : clz32,
|
||
|
||
// Math.trunc()
|
||
trunc : function trunc(value) {
|
||
// value >= 0 ? Math.floor(value) : Math.ceil(value)
|
||
return value > 0 ? Math.floor(value)
|
||
//
|
||
: value < 0 ? Math.ceil(value)
|
||
//
|
||
: value === 0 ? value : isNaN(value) ? NaN
|
||
// null, true, false, ..
|
||
: value | 0;
|
||
},
|
||
sign : function sign(value) {
|
||
// If x is −0, the result is −0.
|
||
return 0 < value ? 1 : value < 0 ? -1 : value;
|
||
}
|
||
});
|
||
|
||
// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
|
||
// RegExp.*
|
||
|
||
// 注意: 因為要設定額外功能，RegExp.prototype.flags 放在 data.native
|
||
|
||
// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
|
||
// String.*
|
||
|
||
/**
|
||
* bug fix (workaround) for String.prototype.split():
|
||
*
|
||
* @see https://github.com/es-shims/es5-shim/blob/master/es5-shim.js
|
||
* http://blog.stevenlevithan.com/archives/cross-browser-split
|
||
* http://blog.stevenlevithan.com/archives/fixing-javascript-regexp
|
||
*
|
||
* @since 2010/1/1 19:03:40 2015/1/28 17:43:0 refactoring 重構
|
||
*
|
||
* @example <code>
|
||
|
||
// More examples: see /_test suite/test.js
|
||
|
||
* </code>
|
||
*/
|
||
if (
|
||
// [ "", "" ] @ IE8, [ "", "_", "" ] @ firefox 38+
|
||
'_'.split(/(_)/)[1] !== '_'
|
||
// 理論上 '.'.split(/\./).length 應該是 2，但 IE 5–8 中卻為 0!
|
||
// 用 .split('.') 倒是 OK.
|
||
// || '.'.split(/\./).length === 0
|
||
)
|
||
(function() {
|
||
var native_String_split =
|
||
// 增加可以管控與回復的手段，預防有時需要回到原有行為。
|
||
library_namespace.native_String_split = String.prototype.split;
|
||
|
||
// The length property of the split method is 2.
|
||
(String.prototype.split = function(separator, limit) {
|
||
if (!library_namespace.is_RegExp(separator))
|
||
return native_String_split.apply(this, arguments);
|
||
|
||
// 不改變 separator 本身，加上 .global flag。
|
||
separator = new RegExp(separator.source, (separator.global ? ''
|
||
: 'g')
|
||
// should use: RegExp_flags(separator)
|
||
+ ('' + separator).match(/[^\/]*$/)[0]);
|
||
var matched, result = [], last_index = 0;
|
||
if (0 <= limit)
|
||
// ToLength(), ToUint32()
|
||
limit >>>= 0;
|
||
else
|
||
// Math.pow(2, 32) - 1
|
||
limit = -1 >>> 0;
|
||
|
||
while (result.length < limit && last_index < this.length) {
|
||
matched = separator.exec(this);
|
||
if (!matched) {
|
||
if (false)
|
||
library_namespace.debug('push (last) ['
|
||
+ this.slice(last_index) + ']');
|
||
result.push(this.slice(last_index));
|
||
break;
|
||
}
|
||
if (false) {
|
||
library_namespace.warn('index: ' + last_index + '-'
|
||
+ matched.index + '-' + separator.lastIndex
|
||
+ ' (' + matched[0].length + ')'
|
||
+ ' [<span style="color:#22a;">'
|
||
+ this.slice(0, last_index)
|
||
+ '<span style="color:#182;">'
|
||
+ this.slice(last_index, separator.lastIndex)
|
||
+ '</span>' + this.slice(separator.lastIndex)
|
||
+ '</span>]');
|
||
library_namespace.log('matched 1 ['
|
||
+ matched.join('<b style="color:#b94;">;</b>')
|
||
+ ']');
|
||
}
|
||
if (false && library_namespace.show_value) {
|
||
library_namespace.show_value(matched, 'matched');
|
||
library_namespace.show_value(result.slice(), 'result');
|
||
}
|
||
// 當有東西時才登記。
|
||
if (last_index < matched.index || matched[0]) {
|
||
result.push(this.slice(last_index, matched.index));
|
||
if (false)
|
||
library_namespace.debug('push ['
|
||
+ this.slice(last_index, matched.index)
|
||
+ ']');
|
||
if (matched.length > 1 && matched.index < this.length)
|
||
Array.prototype.push
|
||
.apply(result, matched.slice(1));
|
||
// IE 中，匹配到 null string 時，lastIndex 會自動 +1。
|
||
// /(,?)/g.exec('1') 之 lastIndex = 1，
|
||
last_index = matched.index + matched[0].length;
|
||
if (false)
|
||
library_namespace.debug('last_index: ['
|
||
+ last_index + ']');
|
||
if (last_index === this.length) {
|
||
if (matched[0]) {
|
||
if (false)
|
||
library_namespace.debug('push null (last)');
|
||
result.push('');
|
||
}
|
||
break;
|
||
}
|
||
} else if (false)
|
||
library_namespace.debug('Skip this.');
|
||
|
||
if (separator.lastIndex === matched.index)
|
||
// 避免無窮迴圈。
|
||
separator.lastIndex++;
|
||
|
||
if (false && library_namespace.show_value) {
|
||
library_namespace
|
||
.info('lastIndex: <span style="color:#905;">'
|
||
+ separator.lastIndex
|
||
+ '</span>, next from: [<span style="color:#62a;">'
|
||
+ this.slice(0, separator.lastIndex)
|
||
+ '</span>|<span style="color:#a42;">'
|
||
+ this.slice(separator.lastIndex)
|
||
+ '</span>]');
|
||
library_namespace.log('matched 2 ['
|
||
+ matched.join('<b style="color:#b94;">;</b>')
|
||
+ ']');
|
||
library_namespace.log('result ['
|
||
+ result.join('<b style="color:#b94;">;</b>')
|
||
+ ']');
|
||
}
|
||
}
|
||
|
||
return result;
|
||
})[library_namespace.env.not_native_keyword] = true;
|
||
})();
|
||
|
||
// String.prototype.repeat()
|
||
// in VB: String(count, this)
|
||
// “x” operator @ perl
|
||
// http://wiki.ecmascript.org/doku.php?id=harmony:string.prototype.repeat
|
||
function repeat(count) {
|
||
var result = [],
|
||
/**
|
||
* The repeat function is intentionally generic
|
||
* https://mail.mozilla.org/pipermail/es-discuss/2011-January/012538.html
|
||
* Trivia: ""+obj is not the same thing as ToString(obj). They differ if
|
||
* obj has a .valueOf method.
|
||
*/
|
||
piece = '' + this;
|
||
|
||
if (!piece || isNaN(count) || (count = Math.floor(count)) < 1)
|
||
return '';
|
||
|
||
// https://mail.mozilla.org/pipermail/es-discuss/2011-January/012525.html
|
||
// If ToUint32(`amount) is not equal to `amount, throw a RangeError.
|
||
// isFinite()
|
||
if (count >>> 0 !== count)
|
||
throw new Error("invalid repeat argument");
|
||
|
||
// http://stackoverflow.com/questions/202605/repeat-string-javascript
|
||
// 此法較 (new Array( count + 1 ).join(this)) 稍快。
|
||
while (true) {
|
||
library_namespace.debug('left: ' + count, 3,
|
||
'String.prototype.repeat');
|
||
if (count & 1)
|
||
result.push(piece);
|
||
|
||
if (count >>>= 1)
|
||
piece += piece;
|
||
else
|
||
break;
|
||
}
|
||
|
||
return result.join('');
|
||
}
|
||
|
||
/**
|
||
* <code>
|
||
|
||
2010/6/1
|
||
test time:
|
||
|
||
' fhdgjk lh gjkl ;sfdf d hf gj '
|
||
|
||
.replace(/^\s+|\s+$/g, '')
|
||
~<
|
||
.replace(/\s+$|^\s+/g, '')
|
||
<
|
||
.replace(/^\s+/, '').replace(/\s+$/, '')
|
||
~<
|
||
.replace(/\s+$/, '').replace(/^\s+/, '')
|
||
|
||
</code>
|
||
*/
|
||
|
||
/**
|
||
* 去除首尾空白。去除前後空白。去頭去尾。去掉 string 前後 space.
|
||
*
|
||
* @param {String}
|
||
* string input string
|
||
* @return {String} 轉換過的 string
|
||
* @since 2006/10/27 16:36
|
||
* @see from lib/perl/BaseF.pm (or program/database/BaseF.pm)<br />
|
||
* function strip() @ Prototype JavaScript framework
|
||
*
|
||
* String.prototype.trim()
|
||
* http://stackoverflow.com/questions/1418050/string-strip-for-javascript
|
||
* https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/Trim
|
||
* http://blog.stevenlevithan.com/archives/faster-trim-javascript
|
||
*
|
||
* @_memberOf _module_
|
||
*/
|
||
function trim() {
|
||
// The repeat function is intentionally generic
|
||
var string = String(this)
|
||
|
||
// https://blog.stevenlevithan.com/archives/faster-trim-javascript
|
||
.replace(/^\s\s*/, '');
|
||
var PATTERN_SPACE = /\s/, index = string.length;
|
||
while (PATTERN_SPACE.test(string.charAt(--index)))
|
||
;
|
||
return string.slice(0, index + 1);
|
||
|
||
// .replace(/\s+$|^\s+/g, '');
|
||
// .replace(/^\s+|\s+$/g, '');
|
||
|
||
// The definition of white space is the union of WhiteSpace and
|
||
// LineTerminator.
|
||
// .replace(/[\s\n]+$|^[\s\n]+/g, '');
|
||
}
|
||
|
||
// String.prototype.trimStart(), String.prototype.trimLeft()
|
||
var trimStart = String.prototype.trimLeft || function trimStart() {
|
||
return String(this).replace(/^[\s\n]+/, '');
|
||
};
|
||
|
||
// String.prototype.trimEnd(), String.prototype.trimRight()
|
||
var trimEnd = String.prototype.trimRight || function trimEnd() {
|
||
return String(this).replace(/[\s\n]+$/, '');
|
||
};
|
||
|
||
// ---------------------------------------------------------------------------
|
||
// http://tc39.github.io/proposal-string-pad-start-end/
|
||
// https://github.com/tc39/proposal-string-pad-start-end
|
||
function pad_String(/* targetLength */maxLength, /* padString */
|
||
fillString) {
|
||
if (!(this.length < maxLength)) {
|
||
return '';
|
||
}
|
||
if (fillString === undefined) {
|
||
fillString = ' ';
|
||
} else if (!(fillString = String(fillString))) {
|
||
return '';
|
||
}
|
||
|
||
maxLength -= this.length;
|
||
|
||
if (fillString.length < maxLength) {
|
||
fillString = fillString.repeat(Math.ceil(maxLength
|
||
/ fillString.length));
|
||
}
|
||
|
||
return fillString.length === maxLength ? fillString
|
||
// assert: fillString.length > maxLength
|
||
: fillString.slice(0, maxLength);
|
||
}
|
||
|
||
// ---------------------------------------------------------------------------
|
||
|
||
// String.prototype.startsWith()
|
||
function startsWith(searchString, position) {
|
||
if (library_namespace.is_RegExp(searchString))
|
||
throw new Error(
|
||
"Invalid type: searchString can't be a Regular Expression");
|
||
searchString = String(searchString);
|
||
if (!position || !(position |= 0) || position < 0)
|
||
return this.lastIndexOf(searchString, 0) === 0;
|
||
|
||
return searchString === this.substr(position, searchString.length);
|
||
}
|
||
|
||
// String.prototype.endsWith()
|
||
function endsWith(searchString, endPosition) {
|
||
if (library_namespace.is_RegExp(searchString))
|
||
throw new Error(
|
||
"Invalid type: searchString can't be a Regular Expression");
|
||
searchString = String(searchString);
|
||
var is_tail = endPosition === undefined
|
||
|| (endPosition |= 0) === this.length,
|
||
//
|
||
position = (is_tail ? this.length : endPosition) - searchString.length;
|
||
return position >= 0
|
||
&& (is_tail ? this.indexOf(searchString, position) === position
|
||
: searchString === this.substr(position,
|
||
searchString.length));
|
||
}
|
||
|
||
// String.prototype.codePointAt(position)
|
||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/codePointAt
|
||
function codePointAt(index) {
|
||
var _1 = this.charCodeAt(index), _2;
|
||
if (index + 1 < this.length
|
||
// check high surrogate
|
||
&& _1 >= 0xD800 && _1 <= 0xDBFF
|
||
// check low surrogate
|
||
&& (_2 = this.charCodeAt(index + 1)) >= 0xDC00 && _2 <= 0xDFFF) {
|
||
return (_1 - 0xD800) * 0x400 + _2 - 0xDC00 + 0x10000;
|
||
}
|
||
return _1;
|
||
}
|
||
|
||
// String.fromCodePoint(...codePoints)
|
||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/fromCodePoint
|
||
function fromCodePoint() {
|
||
var result = '';
|
||
for (var index = 0, length = arguments.length; index < length; index++) {
|
||
var char_code = +arguments[index];
|
||
if (char_code < 0x10000) {
|
||
result += String.fromCharCode(char_code);
|
||
} else {
|
||
char_code -= 0x10000;
|
||
result += String.fromCharCode((char_code >> 10) + 0xD800,
|
||
(char_code % 0x400) + 0xDC00);
|
||
}
|
||
}
|
||
return result;
|
||
}
|
||
|
||
// ------------------------------------------
|
||
|
||
// @see CeL.data.native.RegExp_flags()
|
||
var has_RegExp_flags = /./g.flags === 'g';
|
||
|
||
// Generator function
|
||
var has_Generator;
|
||
(function() {
|
||
var g, i, l;
|
||
try {
|
||
eval('g = function*() { yield 2;yield 1; }; l = []; for(i of g()) l.push(i); l = l.join();');
|
||
has_Generator = l === '2,1';
|
||
} catch (e) {
|
||
}
|
||
})();
|
||
|
||
/**
|
||
* return a new RegExp instance with global flag
|
||
*/
|
||
function new_global_RegExp(regexp) {
|
||
return library_namespace.is_RegExp(regexp)
|
||
// do NOT chancg regexp.lastIndex
|
||
? new RegExp(regexp.source,
|
||
has_RegExp_flags ? regexp.global ? regexp.flags : regexp.flags
|
||
+ 'g' : regexp.ignoreCase ? 'ig' : 'g')
|
||
//
|
||
: new RegExp(regexp, 'g');
|
||
}
|
||
_.new_global_RegExp = new_global_RegExp;
|
||
|
||
// String.prototype.matchAll()
|
||
// http://2ality.com/2018/02/string-prototype-matchall.html
|
||
// https://tc39.github.io/proposal-string-matchall/
|
||
// let all_matched = [...string.matchAll(regExp)].map(mapfn);
|
||
// let all_matched = Array.from(string.matchAll(regExp), mapfn);
|
||
var matchAll;
|
||
if (has_Generator) {
|
||
// e.g., node.ja 11.9.0, Chrome/61.0.3163.100 Electron/2.0.9
|
||
// TODO: returns an RegExpStringIterator
|
||
// String.prototype.matchAll 調用 RegExp.prototype[Symbol.matchAll]
|
||
eval('matchAll = function* matchAll(regexp) { const is_global = !library_namespace.is_RegExp(regexp) || regexp.global; regexp = new_global_RegExp(regexp); let matched; if (is_global) { while (matched = regexp.exec(this)) { yield matched; } } else { throw new TypeError("String.prototype.matchAll called with a non-global RegExp argument"); if (matched = regexp.exec(this)) { yield matched; } } }');
|
||
}
|
||
|
||
// ------------------------------------------
|
||
|
||
set_method(String.prototype, {
|
||
repeat : repeat,
|
||
trim : trim,
|
||
trimStart : trimStart,
|
||
trimEnd : trimEnd,
|
||
// String.prototype.padStart()
|
||
padStart : function padStart(maxLength, fillString) {
|
||
return pad_String.call(this, maxLength, fillString) + this;
|
||
},
|
||
// String.prototype.padEnd()
|
||
padEnd : function padEnd(maxLength, fillString) {
|
||
return this + pad_String.call(this, maxLength, fillString);
|
||
},
|
||
// String.prototype.includes()
|
||
includes : function includes(searchString, position) {
|
||
return this.indexOf(searchString, position) !== NOT_FOUND;
|
||
},
|
||
startsWith : startsWith,
|
||
endsWith : endsWith,
|
||
|
||
matchAll : matchAll || function matchAll_array(regexp) {
|
||
/* const */var is_global = !library_namespace.is_RegExp(regexp)
|
||
//
|
||
|| regexp.global;
|
||
|
||
/* const */regexp = new_global_RegExp(regexp);
|
||
|
||
var matched, list = [];
|
||
if (is_global) {
|
||
while (matched = regexp.exec(this)) {
|
||
// yield matched;
|
||
list.push(matched);
|
||
}
|
||
} else if (matched = regexp.exec(this)) {
|
||
// e.g., 'a1b2A3B4a5cc'.matchAll(/(a)(.)/ig)
|
||
list.push(matched);
|
||
}
|
||
|
||
return list;
|
||
},
|
||
|
||
at : get_item_at,
|
||
codePointAt : codePointAt
|
||
});
|
||
|
||
set_method(String, {
|
||
fromCodePoint : fromCodePoint
|
||
});
|
||
|
||
// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
|
||
// Date.*
|
||
|
||
function pad_00(integer) {
|
||
return integer < 10 ? '0' + integer : integer;
|
||
}
|
||
|
||
// Date.prototype.toISOString() for IE8
|
||
// https://developer.mozilla.org/ja/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString
|
||
function toISOString() {
|
||
var year = this.getUTCFullYear(), m = year < 0;
|
||
if (m)
|
||
year = -year;
|
||
if (year < 1000)
|
||
year = (year < 100 ? year < 10 ? '000' : '00' : '0') + year;
|
||
if (m)
|
||
year = '-' + year;
|
||
|
||
m = this.getUTCMilliseconds();
|
||
if (m < 100)
|
||
m = (m < 10 ? '00' : '0') + m;
|
||
|
||
return year + '-' + pad_00(this.getUTCMonth() + 1) + '-'
|
||
+ pad_00(this.getUTCDate()) + 'T' + pad_00(this.getUTCHours())
|
||
+ ':' + pad_00(this.getUTCMinutes()) + ':'
|
||
+ pad_00(this.getUTCSeconds()) + '.' + m + 'Z';
|
||
}
|
||
|
||
set_method(Date, {
|
||
// Date.UTC()
|
||
UTC : function UTC(year, month, day, hour, minute, second,
|
||
//
|
||
millisecond) {
|
||
var date = new Date(year || 0, month || 0, isNaN(day) ? 1 : day,
|
||
hour || 0, minute || 0, second || 0, millisecond || 0);
|
||
return date.getTime() - 60 * 1000 * date.getTimezoneOffset();
|
||
},
|
||
// Date.now()
|
||
now : function now() {
|
||
return new Date().getTime();
|
||
},
|
||
// Date.parse()
|
||
parse : function parse(string) {
|
||
return new Date(string).getTime();
|
||
}
|
||
});
|
||
|
||
set_method(Date.prototype, {
|
||
// Date.prototype.toJSON()
|
||
toJSON : function toJSON() {
|
||
return this.toISOString();
|
||
},
|
||
// Date.prototype.toISOString()
|
||
toISOString : toISOString
|
||
});
|
||
|
||
// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
|
||
// JSON.*
|
||
|
||
/**
|
||
* 2008/12/21 18:53:42<br />
|
||
* value to json<br />
|
||
* JavaScript Object Notation ECMA-262 3rd Edition
|
||
*
|
||
* http://stackoverflow.com/questions/1500745/how-to-pass-parameters-in-eval-in-an-object-form
|
||
* json={name:'~',values:..,description:'~'}<br />
|
||
* window[json.name].apply(null, json.values)
|
||
*
|
||
* usage:<br />
|
||
* json(value)
|
||
*
|
||
* parse:<code>
|
||
// 字串的前後記得要加上刮號 ()，這是用來告知 Javascript Interpreter 這是個物件描述，不是要執行的 statement。
|
||
data=eval('('+data+')');
|
||
eval('data='+data);
|
||
</code>
|
||
*
|
||
* TODO:
|
||
*
|
||
* useObj<br />
|
||
* 加入function object成員，.prototype可用with()。加入函數相依性(dependency)
|
||
*
|
||
* array用name:<code>
|
||
(function(){
|
||
var o;
|
||
o = [...];
|
||
var i, v = {...};
|
||
for(i in v)
|
||
o[i] = v[i];
|
||
return o;
|
||
})()
|
||
</code>
|
||
*
|
||
* recursion 循環參照<code>
|
||
(function(){
|
||
var o;
|
||
o = {a:[]};
|
||
o['b'] = [o['a']],
|
||
o['a'].push([o['b']]);
|
||
return o;
|
||
})()
|
||
</code>
|
||
*
|
||
* BUG:<br />
|
||
* function 之名稱被清除掉了，這可能會產生問題！<code>
|
||
(function(){
|
||
var f=function(){...};
|
||
f.a=...;
|
||
f.b=...;
|
||
f.prototype={ a:..., b:... }
|
||
return f;
|
||
})()
|
||
</code>
|
||
*
|
||
* test recursion 循環參照:<br />
|
||
* function 之名稱被清除掉了，這可能會產生問題！<code>
|
||
(function(){
|
||
var o=[], _1=[o];
|
||
o.push(_1);
|
||
return o;
|
||
})();
|
||
|
||
var a=[], b;
|
||
a.push(b=[a]);
|
||
json(a);
|
||
</code>
|
||
*/
|
||
|
||
// json[generateCode.dLK]='qNum,dQuote';
|
||
/**
|
||
* 須判別來源是否為 String or Number!
|
||
*
|
||
* @deprecated 改用 window.JSON, jQuery.parseJSON.
|
||
* @param val
|
||
* @param name
|
||
* @param type
|
||
* type==2: inside object, treat undefined as ''
|
||
* @returns
|
||
*/
|
||
function json(val, name, type) {
|
||
var _f = json, expA = [], expC = [], vType = typeof val, addE = function(
|
||
o, l, n) {
|
||
if (l) {
|
||
o = _f(o, 0, 2);
|
||
n = typeof n == 'undefined' || n === '' ? ''
|
||
: (/^(\d{1,8})?(\.\d{1,8})?$/.test(n)
|
||
|| /^[a-z_][a-z_\d]{0,30}$/i.test(n) ? n
|
||
: dQuote(n))
|
||
+ ':' + _f.separator;
|
||
expA.push(n, o[1]);
|
||
|
||
// expC.push(_f.indentString+n+o[0].join(_f.line_separator+_f.indentString)+',');
|
||
o = o[0];
|
||
o[0] = n + (typeof o[0] == 'undefined' ? '' : o[0]);
|
||
o[o.length - 1] += ',';
|
||
for (var i = 0; i < o.length; i++)
|
||
o[i] = _f.indentString
|
||
+ (typeof o[i] == 'undefined' ? '' : o[i]);
|
||
expC = expC.concat(o);
|
||
} else
|
||
expA.push(o), expC.push(o);
|
||
}
|
||
// 去掉最後一組的 ',' 並作結。
|
||
, closeB = function(c) {
|
||
var v = expC.at(-1);
|
||
if (v.charAt(v.length - 1) == ',')
|
||
expC[expC.length - 1] = v.slice(0, v.length - 1);
|
||
addE(c);
|
||
};
|
||
|
||
switch (vType) {
|
||
case 'number':
|
||
// http://msdn2.microsoft.com/zh-tw/library/y382995a(VS.80).aspx
|
||
// isFinite(value) ? String(value)
|
||
var k = 0, m = 'MAX_VALUE,MIN_VALUE,NEGATIVE_INFINITY,POSITIVE_INFINITY,NaN'
|
||
.split(','), t = 0;
|
||
if (val === NaN || val === Infinity || val === -Infinity)
|
||
t = '' + val;
|
||
else
|
||
for (; k < m.length; k++)
|
||
if (val === Number[m[k]]) {
|
||
t = 'Number.' + m[k];
|
||
break;
|
||
}
|
||
if (!t) {
|
||
// http://msdn2.microsoft.com/zh-tw/library/shydc6ax(VS.80).aspx
|
||
for (k = 0, m = 'E,LN10,LN2,LOG10E,LOG2E,PI,SQRT1_2,SQRT2'
|
||
.split(','); k < m.length; k++)
|
||
if (val === Math[m[k]]) {
|
||
t = 'Math.' + m[k];
|
||
break;
|
||
}
|
||
if (!t)
|
||
if (k = ('' + val).match(/^(-?\d*[1-9])(0{3,})$/))
|
||
t = k[1] + 'e' + k[2].length;
|
||
else {
|
||
|
||
// 有理數判別
|
||
k = qNum(val);
|
||
|
||
// 小數不以分數顯示. m==1:非分數
|
||
m = k[1];
|
||
while (m % 2 == 0)
|
||
m /= 2;
|
||
while (m % 5 == 0)
|
||
m /= 5;
|
||
|
||
t = k[2] == 0 && m != 1 ? k[0] + '/' + k[1] :
|
||
// TODO: 加速(?)
|
||
(t = Math.floor(val)) == val
|
||
&& ('' + t).length > (t = '0x'
|
||
+ val.toString(16)).length ? t : val;
|
||
}
|
||
|
||
}
|
||
addE(t);
|
||
break;
|
||
case 'null':
|
||
addE('' + val);
|
||
break;
|
||
case 'boolean':
|
||
addE(val);
|
||
break;
|
||
case 'string':
|
||
addE(dQuote(val));
|
||
break;
|
||
case 'undefined':
|
||
addE(type == 2 ? '' : 'undefined');
|
||
break;
|
||
|
||
case 'function':
|
||
// 加入function
|
||
// object成員，.prototype可用with()。加入函數相依性(dependency)
|
||
var toS, f;
|
||
// 這在多執行緒有機會出問題！
|
||
if (typeof val.toString != 'undefined') {
|
||
toS = val.toString;
|
||
delete val.toString;
|
||
}
|
||
f = '' + val;
|
||
if (typeof toS != 'undefined')
|
||
val.toString = toS;
|
||
|
||
// function 才會產生 \r\n 問題，所以先處理掉
|
||
f = f.replace(/\r?\n/g, _f.line_separator);
|
||
var r = /^function\s+([^(\s]+)/, m = f.match(r), t;
|
||
if (m)
|
||
m = m[1], addE('// function [' + m + ']'), t = f.replace(r,
|
||
'function' + _f.separator);
|
||
if (m && t.indexOf(m) !== NOT_FOUND)
|
||
library_namespace.error('function [' + m
|
||
+ '] 之名稱被清除掉了，這可能會產生問題！');
|
||
addE(t || f);
|
||
// UNDO
|
||
break;
|
||
|
||
case 'object':
|
||
try {
|
||
if (val === null) {
|
||
addE('' + val);
|
||
break;
|
||
}
|
||
var c = val.constructor;
|
||
if (c === RegExp) {
|
||
addE(val);
|
||
break;
|
||
}
|
||
// typeof val.getTime=='function'
|
||
if (c == Date || vType == 'date') {
|
||
// 與 now 相隔過短(<1e7, 約3h)視為 now。
|
||
// 但若是 new Date()+3 之類的會出現誤差！
|
||
addE('new Date'
|
||
// date 被當作 object
|
||
+ ((val - new Date) > 1e7 ? '(' + val.getTime() + ')' : ''));
|
||
break;
|
||
}
|
||
if (('' + c).indexOf('Error') !== NOT_FOUND) {
|
||
addE('new Error'
|
||
+ (val.number || val.description ? '('
|
||
+ (val.number || '')
|
||
+ (val.description ? (val.number ? ',' : '')
|
||
+ dQuote(val.description)
|
||
: '') + ')'
|
||
: ''));
|
||
break;
|
||
}
|
||
|
||
var useObj = 0;
|
||
if (c == Array) {
|
||
var i, l = 0;
|
||
if (!_f.forceArray)
|
||
for (i in val)
|
||
if (isNaN(i)) {
|
||
useObj = 1;
|
||
break;
|
||
} else
|
||
l++;
|
||
|
||
if (_f.forceArray || !useObj && l > val.length * .8) {
|
||
addE('[');
|
||
for (i = 0; i < val.length; i++)
|
||
addE(val[i], 1);
|
||
closeB(']');
|
||
break;
|
||
} else
|
||
useObj = 1;
|
||
}
|
||
|
||
if (useObj || c == Object) {// instanceof
|
||
addE('{');
|
||
for ( var i in val)
|
||
addE(val[i], 1, i);
|
||
closeB('}');
|
||
break;
|
||
}
|
||
addE(dQuote(val));
|
||
break;
|
||
} catch (e) {
|
||
if (28 == (e.number & 0xFFFF))
|
||
alert('json: Too much recursion?\n循環參照？');
|
||
return;
|
||
}
|
||
|
||
case 'unknown':
|
||
// sometimes we have this kind of type
|
||
default:
|
||
alert('Unknown type: [' + vType + '] (constructor: '
|
||
+ val.constructor + '), please contract me!\n' + val);
|
||
break;
|
||
// alert(vType);
|
||
}
|
||
return type ? [ expC, expA ] : expC.join(_f.line_separator);
|
||
}
|
||
// dependency List Key
|
||
json.dL = 'dependencyList';
|
||
json.forceArray = 1;
|
||
|
||
json.indentString = ' ';
|
||
json.line_separator = '\n';
|
||
json.separator = ' ';
|
||
|
||
// --------------------------------------------
|
||
// JSON polyfill
|
||
// 2021: library_namespace.parse_JSON() @ _structure/module.js
|
||
|
||
function JSON_parse(text, reviver) {
|
||
|
||
function parse_next_value() {
|
||
/**
|
||
* <code>
|
||
[...
|
||
{...
|
||
"...
|
||
00000
|
||
null
|
||
<code>
|
||
*/
|
||
var matched = text.match(/^\s*([\[{"]|null|\d+)/);
|
||
if (!matched) {
|
||
// SyntaxError
|
||
return;
|
||
}
|
||
|
||
text = text.slice(/* matched.index(=0) + */matched[0].length);
|
||
|
||
if (matched[1] === 'null' || /^\d/.test(matched[1])) {
|
||
return matched[1] === 'null' ? null : +matched[1];
|
||
}
|
||
|
||
// https://developer.mozilla.org/zh-TW/docs/Web/JavaScript/Reference/Global_Objects/JSON
|
||
if (matched[1] === '"') {
|
||
matched = text.match(/^(?:\\"|[^"])*"/);
|
||
text = text.slice(matched[0].length);
|
||
|
||
return matched[0].slice(0, -1)
|
||
//
|
||
.replace(/\\u([0-9a-f]{4})/ig, function(code) {
|
||
return String.fromCharCode(parseInt(code, 16));
|
||
}).replace(/\\([\s\S]|$)/g, function(escape_char) {
|
||
// /\\(["\\\/\b\f\t\r\n])/g
|
||
var escaped = {
|
||
'"' : '"',
|
||
'\\' : '\\',
|
||
b : '\b',
|
||
f : '\f',
|
||
t : '\t',
|
||
r : '\r',
|
||
n : '\n'
|
||
}[escape_char];
|
||
if (!escaped) {
|
||
throw new SyntaxError('Unexpected token \\'
|
||
// Invalid JSON
|
||
+ escape_char + ' in JSON');
|
||
}
|
||
return escaped
|
||
});
|
||
}
|
||
|
||
if (matched[1] === '[') {
|
||
var array = [];
|
||
matched = text.match(/^\s*\]/);
|
||
if (matched) {
|
||
// "{}"
|
||
text = text.slice(matched[0].length);
|
||
return array;
|
||
}
|
||
while (true) {
|
||
var next_value = parse_next_value();
|
||
if (next_value === undefined)
|
||
return;
|
||
array.push(next_value);
|
||
matched = text.match(/^\s*([,\]])/);
|
||
if (!matched) {
|
||
// SyntaxError
|
||
return;
|
||
}
|
||
text = text.slice(matched[0].length);
|
||
if (matched[1] === ']') {
|
||
break;
|
||
}
|
||
}
|
||
return array;
|
||
}
|
||
|
||
// assert: matched[1] === '{'
|
||
var object = {};
|
||
matched = text.match(/^\s*}/);
|
||
if (matched) {
|
||
// "{}"
|
||
text = text.slice(matched[0].length);
|
||
return object;
|
||
}
|
||
while (true) {
|
||
var next_key = parse_next_value();
|
||
if (typeof next_key !== 'string') {
|
||
throw new SyntaxError('Unexpected token in JSON: '
|
||
+ next_key + '; ' + text);
|
||
}
|
||
matched = text.match(/^\s*:/);
|
||
if (!matched) {
|
||
// SyntaxError
|
||
return;
|
||
}
|
||
text = text.slice(matched[0].length);
|
||
var next_value = parse_next_value();
|
||
if (next_value === undefined)
|
||
return;
|
||
matched = text.match(/^\s*([,}])/);
|
||
if (!matched) {
|
||
// SyntaxError
|
||
return;
|
||
}
|
||
object[next_key] = next_value;
|
||
text = text.slice(matched[0].length);
|
||
if (matched[1] === '}') {
|
||
break;
|
||
}
|
||
}
|
||
return object;
|
||
}
|
||
|
||
text = String(text);
|
||
|
||
var result = parse_next_value();
|
||
if (text.trim())
|
||
throw new SyntaxError('Unexpected token in JSON: ' + text);
|
||
|
||
return result;
|
||
}
|
||
|
||
function JSON_stringify(value, replacer, space) {
|
||
var object_Set = new Set;
|
||
|
||
if (!space) {
|
||
space = '';
|
||
} else if (typeof space === 'number') {
|
||
if (space > 10)
|
||
space = 10;
|
||
else if (space < 1)
|
||
space = 0;
|
||
space = ' '.repeat(space);
|
||
} else {
|
||
space = String(space).slice(0, 10);
|
||
}
|
||
|
||
function stringify(object, /* 累積的空格 */_spaces, key, obj) {
|
||
if (object && typeof object.toJSON === 'function') {
|
||
// e.g., {Date}
|
||
object = object.toJSON(key);
|
||
}
|
||
|
||
if (replacer)
|
||
object = replacer.call(obj, key, value);
|
||
|
||
if (typeof object === 'string')
|
||
return '"' + object.replace(/["\\\/\b\f\t\r\n]/g, '\\"') + '"';
|
||
|
||
if (!object || typeof object !== 'object') {
|
||
if (object === undefined) {
|
||
if (!key)
|
||
return;
|
||
object = null;
|
||
}
|
||
object = String(object);
|
||
return object;
|
||
}
|
||
|
||
var next_spaces = _spaces + space;
|
||
|
||
var output = [];
|
||
if (Array.isArray(object)) {
|
||
for (var index = 0; index < object.length; index++) {
|
||
var value = object[index];
|
||
if (object_Set.has(value)) {
|
||
throw new Error(
|
||
// Too much recursion?\n循環參照？
|
||
'Converting circular structure to JSON: [' + index
|
||
+ ']');
|
||
}
|
||
if (value === undefined)
|
||
value = null;
|
||
output.push('\n' + next_spaces
|
||
+ stringify(value, next_spaces, key, object));
|
||
}
|
||
return '[' + output.join(',') + (space ? '\n' + _spaces : '')
|
||
+ ']';
|
||
}
|
||
|
||
var keys = Object.keys(object);
|
||
for (var index = 0; index < keys.length; index++) {
|
||
var key = keys[index], value = object[key];
|
||
if (object_Set.has(value)) {
|
||
throw new Error('Converting circular structure to JSON: .'
|
||
+ key);
|
||
}
|
||
if (value === undefined)
|
||
continue;
|
||
output.push('\n' + next_spaces + stringify(key, next_spaces)
|
||
+ (space ? ': ' : ':')
|
||
+ stringify(value, next_spaces, key, object));
|
||
}
|
||
return '{' + output.join(',') + (space ? '\n' + _spaces : '') + '}';
|
||
}
|
||
|
||
return stringify(value, '');
|
||
}
|
||
|
||
if (!globalThis.JSON) {
|
||
globalThis.JSON = {
|
||
parse : JSON_parse,
|
||
stringify : JSON_stringify
|
||
};
|
||
}
|
||
|
||
// --------------------------------------------
|
||
// for old node.js
|
||
|
||
function Buffer_from(source, encoding) {
|
||
return new Buffer(source, encoding);
|
||
}
|
||
|
||
if (library_namespace.platform.nodejs) {
|
||
if (!Buffer.from) {
|
||
// For Node.js v5.11.1 and below
|
||
// e.g., node.js v0.10.25
|
||
Buffer.from = Buffer_from
|
||
}
|
||
if (!Buffer.allocUnsafe) {
|
||
Buffer.allocUnsafe = Buffer_from;
|
||
}
|
||
if (!Buffer.prototype.forEach) {
|
||
Buffer.prototype.forEach = Array.prototype.forEach;
|
||
}
|
||
}
|
||
|
||
// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
|
||
|
||
/**
|
||
* Promise polyfill
|
||
*
|
||
* <code>
|
||
|
||
https://babeljs.io/repl
|
||
|
||
Promise test cases:
|
||
|
||
promise = new Promise(function(r,R){r()})
|
||
r(value) fulfilled
|
||
(p=new Promise(function(r,R){r( 2 )}));console.log(p)
|
||
Promise {<resolved>: 2}
|
||
r(promise) promise→p
|
||
(p=new Promise(function(r,R){r( Promise.resolve(2) )}));console.log(p)
|
||
p: Promise {<pending>}
|
||
→ Promise {<resolved>: 2}
|
||
(p=new Promise(function(r,R){r( Promise.reject(2) )})).then(null,function(){});console.log(p)
|
||
p: Promise {<pending>}
|
||
→ Promise {<rejected>: 2}
|
||
(q=(p=new Promise(function(r,R){r( Promise.reject(2) )})).then(3,4)).then(5,function(v){console.log(v)});console.log(p);console.log(q)
|
||
2
|
||
p: Promise {<pending>}
|
||
→ Promise {<rejected>: 2}
|
||
p=new Promise(function(r,R){r(Promise.resolve(1));throw 2});console.log(p)
|
||
p: Promise {<pending>}
|
||
→ Promise {<resolved>: 1}
|
||
r(thenable) thenable→p
|
||
(p=new Promise(function(r,R){r({then:function(r,R){r(4)}})}));console.log(p)
|
||
Promise {<pending>}
|
||
→ Promise {<resolved>: 4}
|
||
(p=new Promise(function(r,R){r({then:function(r,R){console.log(this);R(4)}})})).then(null,function(){});
|
||
this: {then: ƒ}
|
||
p → Promise {<rejected>: 4}
|
||
R(value) rejected
|
||
R(promise)
|
||
(p=new Promise(function(r,R){R( Promise.resolve(2) )})).then(null,function(){});console.log(p)
|
||
Promise {<rejected>: Promise}
|
||
R(thenable)
|
||
|
||
promise.then(r_,R_)
|
||
promise: pending, fulfilled, rejected
|
||
r_ return value value→return
|
||
(p=new Promise(function(r){throw 2})).then(null,function(){});console.log(p)
|
||
Promise {<rejected>: 2}
|
||
r_ return promise p→promise→return
|
||
p=Promise.resolve(2).then(function(){return Promise.resolve(4)});console.log(p)
|
||
p: Promise {<pending>}
|
||
→ Promise {<resolved>: 4}
|
||
(p=Promise.reject(3)).then(null,function(){});(q=Promise.resolve(2).then(function(){return p})).then(null,function(){});console.log(p);console.log(q)
|
||
Promise {<rejected>: 3} ; Promise {<pending>}
|
||
→ Promise {<rejected>: 3} ; Promise {<rejected>: 3}
|
||
p=Promise.resolve(2).then(function(){return new Promise(function(r){setTimeout(function(){r(4)},2);})});console.log(p)
|
||
p: Promise {<pending>}
|
||
→ Promise {<resolved>: 4}
|
||
p=Promise.resolve(2).then(function(){return new Promise(function(){})});console.log(p)
|
||
Promise {<pending>}
|
||
Promise.resolve().then(function(){return Promise.reject(3)}).then(null,function(){});console.log(p)
|
||
Promise {<pending>}
|
||
p=Promise.resolve().then(function(){return new Promise(function(r){setTimeout(function(){console.log(4);r(4)},500)}).then(function(v){console.log(++v);return v})}).then(function(v){console.log(++v);return v},function(){});console.log(p)
|
||
p: Promise {<pending>}
|
||
4
|
||
5
|
||
6
|
||
p → Promise {<resolved>: 6}
|
||
r_ return thenable p→thenable→returned
|
||
p=Promise.resolve(2).then(function(){return {then:function(r,R){r(4)}}});console.log(p)
|
||
p: Promise {<pending>}
|
||
→ Promise {<resolved>: 4}
|
||
(p=Promise.resolve(2).then(function(){return {then:function(r,R){R(4)}}})).then(null,function(){});
|
||
chrome: Promise {<resolved>: undefined} or firefox: Promise { <state>: "pending" }
|
||
p: Promise {<pending>}
|
||
→ Promise {<rejected>: 4}
|
||
p=Promise.resolve(2).then(function(){return {then:function(r,R){setTimeout(function(){r(4)},2);}}});console.log(p)
|
||
p: Promise {<pending>}
|
||
→ Promise {<resolved>: 4}
|
||
R_ return value
|
||
(p=new Promise(function(r,R){R(2)})).then(null,function(){});console.log(p)
|
||
Promise {<rejected>: 2}
|
||
R_ return promise
|
||
(p=new Promise(function(r,R){R(Promise.resolve(2))})).then(null,function(){});console.log(p)
|
||
Promise {<rejected>: Promise}
|
||
(q=Promise.reject(2)).then(null,function(){});(p=new Promise(function(r,R){R(q)})).then(null,function(){});console.log(p)
|
||
Promise {<rejected>: Promise}
|
||
R_ return thenable
|
||
(p=new Promise(function(r,R){R({then:function(r,R){R(2)}})})).then(null,function(){});console.log(p)
|
||
Promise {<rejected>: {…}}
|
||
|
||
|
||
Promise.resolve(v)
|
||
v: value: tested above
|
||
p=Promise.resolve('v');console.log(p)
|
||
p=Promise.resolve(2).then(function(v){console.log(v);return 3}).then(function(v){console.log(v);return 3});console.log(p)
|
||
Promise {<pending>}
|
||
2
|
||
3
|
||
v: promise
|
||
(q=Promise.resolve(2)).then(null,function(){});p=Promise.resolve(q);console.log(p)
|
||
Promise {<resolved>: 2}
|
||
(q=Promise.reject(2)).then(null,function(){});p=Promise.resolve(q);console.log(p)
|
||
Promise {<rejected>: 2}
|
||
v: thenable
|
||
q={then:function(r,R){r(2)}};p=Promise.resolve(q);console.log(p)
|
||
p: Promise {<pending>}
|
||
→ Promise {<resolved>: 2}
|
||
q={then:function(r,R){R(2)}};(p=Promise.resolve(q)).then(null,function(){});console.log(p)
|
||
p: Promise {<pending>}
|
||
→ Promise {<rejected>: 2}
|
||
q={b:2,then:function(r){console.log(this.b);r(2)}};p=Promise.resolve(q);console.log(p)
|
||
q={b:2,then:function(r){console.log(this.b);throw 2}};(p=Promise.resolve(q)).then(null,function(){});console.log(p)
|
||
|
||
|
||
Promise.reject(v)
|
||
v: value: tested above
|
||
(p=Promise.reject('v')).then(null,function(){});console.log(p)
|
||
p=Promise.resolve(1);console.log(p);(q=Promise.reject(p)).then(null,function(){});console.log(p!==q)
|
||
Promise {<resolved>: 1}
|
||
console.log(p!==q): true
|
||
(p=Promise.reject(1)).then(null,function(){});(q=Promise.reject(p)).then(null,function(){});console.log(p!==q)
|
||
console.log(p!==q): true
|
||
v: promise
|
||
(p=Promise.reject(Promise.resolve(2))).then(null,function(){});console.log(p)
|
||
Promise {<rejected>: Promise}
|
||
(q=Promise.resolve(2)).then(null,function(){});(p=Promise.reject(q)).then(null,function(){});console.log(p)
|
||
Promise {<rejected>: Promise}
|
||
(q=Promise.reject(2)).then(null,function(){});(p=Promise.reject(q)).then(null,function(){});console.log(p)
|
||
Promise {<rejected>: Promise}
|
||
v: thenable
|
||
q={then:function(r,R){R(2)}};(p=Promise.reject(q)).then(null,function(){});console.log(p)
|
||
Promise {<rejected>: {…}}
|
||
|
||
|
||
Promise.all ( iterable )
|
||
iterable: value:
|
||
(p=Promise.all([])).then(function(L){console.log(Array.isArray(L)+','+L.length)});console.log(p)
|
||
p: Promise {<resolved>: Array(0)}
|
||
true,0
|
||
Promise.all(1).then(function(L){console.log('_'+L)},function(x){console.log('!'+x.message)})
|
||
x: TypeError: number 1 is not iterable (cannot read property Symbol(Symbol.iterator))
|
||
iterable: promise, thenable:
|
||
Promise.all([2,1,Promise.reject(8)]).then(function(){},function(R){console.log(R)})
|
||
8
|
||
l=[3,'a',new Promise(function(r,R){setTimeout(function(){r(4)},8)}),9,{then:3},{then:function(r,R){return r(7)}},Promise.resolve(3),[2,3],null,undefined];Promise.all(l).then(function(L){console.log(L);})
|
||
Promise {<pending>}
|
||
(10) [3, "a", 4, 9, {…}, 7, 3, Array(2), null, undefined]
|
||
|
||
|
||
Promise.race ( iterable )
|
||
Promise.race([new Promise(function(r,R){setTimeout(function(){console.log(500);r(3)},500)}),new Promise(function(r,R){setTimeout(function(){console.log(5);r(1)},5)}),Promise.resolve(6),new Promise(function(r,R){setTimeout(function(){console.log(400);r(7)},400)})]).then(function(r){console.log('** '+r)})
|
||
→ 6
|
||
|
||
promise.finally(onFinally) Promise_finally(onFinally)
|
||
onFinally: value
|
||
p=Promise.resolve(2)['finally'](3).then(function(v){console.log(v);return 4});console.log(p)
|
||
2
|
||
p: Promise {<pending>}
|
||
→ Promise {<resolved>: 4}
|
||
onFinally: function return value
|
||
p=Promise.resolve(2).then(function(v){console.log(v);return 3})['finally'](function(v){console.log('_'+v);return 4}).then(function(v){console.log(v);return 5});console.log(p)
|
||
p: Promise {<pending>}
|
||
2
|
||
_undefined
|
||
3
|
||
p → Promise {<resolved>: 5}
|
||
p=Promise.reject(2).then(function(v){console.log(v);return 3})['finally'](function(v){console.log('_'+v);return 4}).then(function(v){console.log(v);return 5}).then(null,function(v){console.log(v);return 6});console.log(p)
|
||
p: Promise {<pending>}
|
||
_undefined
|
||
2
|
||
p → Promise {<resolved>: 6}
|
||
onFinally: function return promise, thenable:
|
||
p=Promise.resolve(2).then(function(v){console.log(v);return 3})['finally'](function(v){console.log('_'+v);return Promise.resolve(3)}).then(function(v){console.log(v);return 5});console.log(p)
|
||
p: Promise {<pending>}
|
||
2
|
||
_undefined
|
||
3
|
||
p → Promise {<resolved>: 5}
|
||
|
||
// --------------------------------------------------------------------------------------
|
||
|
||
var v='';(p=new Promise(function(r,R){r(1);throw '0'}))
|
||
.then(function(x){v+=x;console.log(v);return 2})
|
||
.then(function(x){v+=x;return 3})
|
||
.then(function(x){v+=x;throw '4'},function(y){v+=y;return 0})
|
||
.then(function(x){v+=x;throw 0},function(y){v+=y;return 5})
|
||
.then(function(x){v+=x;return 6})
|
||
.then(function(x){v+=x;console.log(v==="_123456")});v='_';console.log(p)
|
||
console.log(v)
|
||
|
||
var v='';(p=new Promise(function(r,R){r(Promise.resolve(1));r(0);throw '2'}))
|
||
.then(function(x){v+=x;console.log(v);return 2})
|
||
.then(function(x){v+=x;return 3})
|
||
.then(function(x){v+=x;throw '4'},function(y){v+=y;return 0})
|
||
.then(function(x){v+=x;throw 0},function(y){v+=y;return 5})
|
||
.then(function(x){v+=x;return 6})
|
||
.then(function(x){v+=x;console.log(v==="_123456")});v='_';console.log(p)
|
||
console.log(v)
|
||
|
||
|
||
(q=Promise.reject(2).then(function(){})).then(function(){},function(y){})
|
||
// console.log(q): Promise {<rejected>: 2}
|
||
|
||
|
||
var v='';(p=new Promise(function(r,R){R(1);r(0)}))
|
||
.then(function(x){v+=x;console.log('!!');return 0})
|
||
.then(function(x){v+=x;return 0})
|
||
.then(function(x){v+=x;throw '0'},function(y){console.log('y='+y);v+=y;return 2})
|
||
.then(function(x){v+=x;throw '3'},function(y){v+=y;return 0})
|
||
.then(function(x){v+=x;return 0})
|
||
.then(function(x){v+=x;},function(x){v+=x;console.log(v);console.log(v==="_123")});v='_';
|
||
|
||
|
||
var q=null,r='';Promise.resolve()
|
||
.then(function(x){r+=x;return 1})
|
||
.then(function(x){r+=x;q=new Promise(function(r,R){setTimeout(r,8)});return q})
|
||
.then(function(x){r+=x;return 2})
|
||
.then(function(x){r+=x;
|
||
q
|
||
.then(function(x){r+=x;return 3})
|
||
.then(function(x){r+=x;return 5})
|
||
.then(function(x){r+=x;return 7})
|
||
.then(function(x){r+=x;});
|
||
return '_'})
|
||
.then(function(x){r+=x;return 4})
|
||
.then(function(x){r+=x;return 6})
|
||
.then(function(x){r+=x;return 8})
|
||
.then(function(x){r+=x;console.log(r==="undefined1undefined2undefined_345678")})
|
||
|
||
|
||
var q=null,r='';Promise.resolve()
|
||
.then(function(x){r+='_';return 1})
|
||
.then(function(x){r+=x;q=new Promise(function(r,R){setTimeout(function(){R(2)},8)});q.then(function(x){r+=x;return 0},function(y){r+=2&&y;});return q})
|
||
.then(function(x){r+=x;return 0})
|
||
.then(function(x){r+=x;
|
||
q
|
||
.then(function(x){r+=x;return 0},function(y){r+=y;return 0})
|
||
.then(function(x){r+=x;return 0})
|
||
.then(function(x){r+=x;return 0})
|
||
.then(function(x){r+=x;});
|
||
return 0})
|
||
.then(function(x){r+=x;return 0},function(y){r+=3;return 4})
|
||
.then(function(x){r+=x;return 5})
|
||
.then(function(x){r+=x;return 6})
|
||
.then(function(x){r+=x;console.log(r==="_123456")})
|
||
|
||
|
||
var q=null,r='';Promise.resolve()
|
||
.then(function(x){r+='_';return 1})
|
||
.then(function(x){r+=x;q=new Promise(function(r,R){setTimeout(function(){R(2)},8)});q.then(function(x){r+=x;return 0},function(y){r+=2&&y;});return q})
|
||
.then(function(x){r+=x;return 0},function(y){r+=3;return 4})
|
||
//.then(function(x){r+='^^^';return 4})
|
||
.then(function(x){r+=4&&x;
|
||
console.log(q)
|
||
q // Promise {<rejected>: 2}
|
||
.then(function(x){r+=x;return 0},function(y){r+=5;return 7})
|
||
.then(function(x){r+=x;return 9})
|
||
.then(function(x){r+=x;return 'b'})
|
||
.then(function(x){r+=x;});
|
||
return 6})
|
||
.then(function(x){r+=6&&x;return 8},function(y){r+=y;return 0})
|
||
.then(function(x){r+=x;return 'a'})
|
||
.then(function(x){r+=x;return 'c'})
|
||
.then(function(x){r+=x;console.log(r==="_123456789abc")})
|
||
|
||
|
||
|
||
|
||
r='';(q=new Promise(function(r,R){setTimeout(function(){R(1)},5000)}))
|
||
.then(function(x){r+=x;return 0},function(y){r+=1&&y;return 2})
|
||
.then(function(x){r+=2&&x;return 3})
|
||
.then(function(x){r+=3&&x;console.log(r==='123')})
|
||
|
||
r='';(q=new Promise(function(r,R){setTimeout(function(){R(1)},50)}))
|
||
.then(function(x){r+=x;return 0},function(y){r+=1&&y;return 2})
|
||
.then(function(x){r+=2&&x;return 3})
|
||
//console.log(r): '12'
|
||
//
|
||
// another:
|
||
q.then(function(x){r+=3&&x;console.log(r==='123')})
|
||
// Uncaught (in promise) 1
|
||
// r==='12'
|
||
|
||
|
||
|
||
q=new Promise(function(r,R){setTimeout(R,8)})
|
||
s=q.then(function(x){},function(y){})
|
||
console.log([s!==q,s,q])
|
||
// s: resolved, q: rejected. then方法執行完會另外產生一個新的 Promise 物件。
|
||
// https://eyesofkids.gitbooks.io/javascript-start-es6-promise/content/contents/then_adv.html
|
||
|
||
|
||
|
||
test of Promise.prototype.then(): this[KEY_STATE] === PromiseState_pending
|
||
|
||
p=new Promise(function(r,R){setTimeout(function(){r(9)},8)});
|
||
p.then(function(a){r+=1});
|
||
p.then(function(a){r+=2});
|
||
p.then(function(a){r+=3});
|
||
console.log(p);r='';
|
||
//
|
||
console.log(r==='123');
|
||
|
||
p=new Promise(function(r,R){setTimeout(function(){R(9)},8)});
|
||
p.then(null,function(a){r+=1});
|
||
p.then(null,function(a){r+=2});
|
||
p.then(null,function(a){r+=3});
|
||
console.log(p);r='';
|
||
//
|
||
console.log(r==='123');
|
||
|
||
|
||
p=new Promise(function(r,R){setTimeout(function(){r(9)},8)});p.then(123).then(function(x){console.log(x===9);});
|
||
|
||
|
||
</code>
|
||
*
|
||
* @since 2018/9/16 7:37:10
|
||
*/
|
||
|
||
// Promise 標準規格書/定義
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-promise-objects
|
||
// https://promisesaplus.com/
|
||
// https://github.com/promises-aplus/promises-spec
|
||
// https://developer.mozilla.org/en-US/docs/Web/API/Window/setImmediate
|
||
// http://azu.github.io/promises-book/
|
||
// 實作 Promise polyfill
|
||
// https://github.com/stefanpenner/es6-promise/tree/master/lib/es6-promise
|
||
// https://github.com/taylorhakes/promise-polyfill/blob/master/dist/polyfill.js
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-enqueuejob
|
||
var EnqueueJob = library_namespace.platform.nodejs && process.nextTick
|
||
// https://github.com/stefanpenner/es6-promise/blob/master/lib/es6-promise/asap.js
|
||
// node version 0.10.x displays a deprecation warning when nextTick is used
|
||
// recursively
|
||
// see https://github.com/cujojs/when/issues/410 for details
|
||
? function(job) {
|
||
return process.nextTick(job);
|
||
}
|
||
// https://github.com/cssmagic/ChangeLog/issues/3
|
||
// setImmediate() 會調度宏微任務而不是微任務，可能導致不一樣的調度結果。
|
||
: typeof setImmediate === 'function' ? setImmediate : function(job) {
|
||
setTimeout(job, 1);
|
||
},
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-properties-of-promise-instances
|
||
// const
|
||
PromiseState_pending = 0, PromiseState_fulfilled = 1, PromiseState_rejected = -1,
|
||
// const
|
||
KEY_STATE = '_state', KEY_VALUE = '_value', KEY_HANDLED = '_handled', KEY_REACTIONS = '_reactions',
|
||
// KEY_DEPEND_ON = KEY_VALUE; 因為沒有衝突，可重複利用 KEY_VALUE。
|
||
// 應對: @see TriggerPromiseReactions(promise)
|
||
KEY_DEPEND_ON = '_depend_on' && KEY_VALUE;
|
||
|
||
// @private
|
||
// assert: won't throw
|
||
function PerformPromiseThen(promise, reaction, rejected, value) {
|
||
if (typeof reaction !== 'function') {
|
||
(rejected ? RejectPromise : FulfillPromise)(promise, value);
|
||
return;
|
||
}
|
||
|
||
/**
|
||
* <code>
|
||
(p=Promise.reject(2).then(function(){},function(v){return Promise.resolve(2)})).then(null,function(){});
|
||
Promise {<pending>}
|
||
→ Promise {<resolved>: 2}
|
||
</code>
|
||
*/
|
||
try {
|
||
value = reaction(value);
|
||
FulfillPromise(promise, value);
|
||
} catch (e) {
|
||
RejectPromise(promise, e);
|
||
}
|
||
}
|
||
|
||
// @private
|
||
// assert: won't throw
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-triggerpromisereactions
|
||
function TriggerPromiseReactions(promise) {
|
||
var value = promise[KEY_VALUE], rejected = promise[KEY_STATE] === PromiseState_rejected, reactions = promise[KEY_REACTIONS];
|
||
if (!reactions) {
|
||
// TriggerPromiseReactions() already executed
|
||
/** <code>p=new Promise(function(r,R){r(Promise.resolve(1));throw 2});console.log(p)</code> */
|
||
return;
|
||
}
|
||
|
||
// free
|
||
delete promise[KEY_REACTIONS];
|
||
if (false && KEY_VALUE !== KEY_DEPEND_ON)
|
||
delete promise[KEY_DEPEND_ON];
|
||
|
||
// assert: (`value` is not thenable || rejected) === true
|
||
EnqueueJob(function() {
|
||
if (rejected && !promise[KEY_HANDLED]) {
|
||
// assert: no onRejected reaction
|
||
|
||
// Promise.reject(2).then(function(v){}).catch(function(v){})
|
||
|
||
// HostPromiseRejectionTracker ( promise, operation )
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-host-promise-rejection-tracker
|
||
throw new Error('Uncaught (in promise): ' + value);
|
||
}
|
||
|
||
library_namespace.debug('reactions of ' + promise + ': '
|
||
+ reactions.join(';'), 8, 'TriggerPromiseReactions');
|
||
// PromiseReactionJob ( reaction, argument )
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-promisereactionjob
|
||
reactions.forEach(function(reaction) {
|
||
if (Array.isArray(reaction)) {
|
||
// @see
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-promisereaction-records
|
||
// reaction = [ promise, onFulfilled, onRejected ]
|
||
PerformPromiseThen(reaction[0], reaction[rejected ? 2 : 1],
|
||
rejected, value);
|
||
} else {
|
||
// assert: IsPromise(reaction)
|
||
(rejected ? RejectPromise : FulfillPromise)
|
||
(reaction, value);
|
||
}
|
||
});
|
||
});
|
||
}
|
||
|
||
// @private
|
||
// assert: won't throw
|
||
// Promise Resolve Functions, resolve `promise` with `result`.
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-promise-resolve-functions
|
||
// https://promisesaplus.com/#the-promise-resolution-procedure
|
||
function FulfillPromise(promise, result, no_enqueue) {
|
||
// test if promise is settled / alreadyResolved
|
||
if (promise[KEY_STATE] !== PromiseState_pending) {
|
||
// p=new Promise(function(r,R){setTimeout(function(){r(1);r(p)},1)})
|
||
return;
|
||
}
|
||
|
||
function executing_job(job) {
|
||
if (no_enqueue)
|
||
job();
|
||
else
|
||
EnqueueJob(job);
|
||
}
|
||
|
||
var then;
|
||
try {
|
||
if (promise === result) {
|
||
// selfResolutionError
|
||
/** <code>(p=new Promise(function(r,R){setTimeout(function(){r(p)},1)})).then(null,function(){})</code> */
|
||
// Chaining cycle detected for promise #<Promise>
|
||
throw new TypeError('A promise cannot be resolved with itself.');
|
||
}
|
||
|
||
then = get_then_of_thenable(result);
|
||
if (!then) {
|
||
// p=new Promise(function(r,R){r({then:2})})
|
||
promise[KEY_STATE] = PromiseState_fulfilled;
|
||
promise[KEY_VALUE] = result;
|
||
|
||
TriggerPromiseReactions(promise);
|
||
|
||
} else {
|
||
if (IsPromise(result)) {
|
||
/**
|
||
* <code>
|
||
// won't throw HostPromiseRejectionTracker:
|
||
(p=new Promise(function(r,R){r( Promise.reject(2) )})).then(null,function(){});console.log(p)
|
||
q=Promise.reject(2);(p=new Promise(function(r,R){r( q )})).then(null,function(){});console.log(p)
|
||
Promise.resolve().then(function(){return Promise.reject(3)}).then(null,function(){});
|
||
Promise.resolve().then(function(){return new Promise(function(r,R){R(3)})}).then(null,function(){});
|
||
</code>
|
||
*/
|
||
library_namespace.debug('handled: ' + result, 8,
|
||
'FulfillPromise');
|
||
result[KEY_HANDLED] = true;
|
||
}
|
||
|
||
executing_job(function() {
|
||
/**
|
||
* old runtime environment may not has
|
||
* Function.prototype.bind(), so we use anonymous functions
|
||
* instead of FulfillPromise.bind() to improve performance.
|
||
*/
|
||
function onFulfilled(value) {
|
||
if (!called) {
|
||
called = true;
|
||
FulfillPromise(promise, value, no_enqueue);
|
||
}
|
||
}
|
||
function onRejected(value) {
|
||
if (!called) {
|
||
called = true;
|
||
RejectPromise(promise, value);
|
||
}
|
||
}
|
||
var called;
|
||
try {
|
||
if (IsPromise(result)) {
|
||
/**
|
||
* <code>
|
||
p=new Promise(function(r){setTimeout(function(){r(Promise.resolve(2))},1)})
|
||
</code>
|
||
*/
|
||
if (result[KEY_STATE] === PromiseState_pending) {
|
||
promise[KEY_DEPEND_ON] = result;
|
||
result[KEY_REACTIONS].push(promise);
|
||
|
||
} else {
|
||
// copy result → promise
|
||
promise[KEY_STATE] = result[KEY_STATE];
|
||
promise[KEY_VALUE] = result[KEY_VALUE];
|
||
|
||
// assert: promise[KEY_STATE] !==
|
||
// PromiseState_pending
|
||
TriggerPromiseReactions(promise);
|
||
}
|
||
|
||
} else {
|
||
/**
|
||
* <code>
|
||
is_thenable(result)
|
||
p=new Promise(function(r,R){r({then:function(){}})})
|
||
t={};t.then=function(r){r(2)};p=new Promise(function(r,R){r(t)})
|
||
t=function(){};t.then=function(r){r(2)};p=new Promise(function(r,R){r(t)})
|
||
</code>
|
||
*/
|
||
|
||
then.call(result, onFulfilled, onRejected);
|
||
}
|
||
} catch (e) {
|
||
onRejected(e);
|
||
}
|
||
});
|
||
}
|
||
|
||
} catch (e) {
|
||
executing_job(function() {
|
||
RejectPromise(promise, e);
|
||
});
|
||
}
|
||
}
|
||
|
||
// @private
|
||
// assert: won't throw
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-promise-reject-functions
|
||
function RejectPromise(promise, reason) {
|
||
// test if promise is settled / alreadyResolved
|
||
if (promise[KEY_STATE] !== PromiseState_pending) {
|
||
return;
|
||
}
|
||
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-rejectpromise
|
||
|
||
// p=new Promise(function(r,R){setTimeout(function(){R(p)},1)})
|
||
// p=new Promise(function(r,R){R(function(){throw p})})
|
||
// p=new Promise(function(r,R){R({then:function(){throw p}})})
|
||
promise[KEY_STATE] = PromiseState_rejected;
|
||
promise[KEY_VALUE] = reason;
|
||
EnqueueJob(function() {
|
||
// (q=(p=Promise.reject(2)).then(3,4)).then(null,function(){});console.log(p);console.log(q);
|
||
TriggerPromiseReactions(promise);
|
||
});
|
||
}
|
||
|
||
// @private
|
||
// is thenable object, thenable 物件
|
||
function get_then_of_thenable(value) {
|
||
// `value &&`: for null
|
||
if (value && (typeof value === 'function' || typeof value === 'object')) {
|
||
var then = value.then;
|
||
return typeof then === 'function' && then;
|
||
}
|
||
}
|
||
|
||
// @see is_thenable() @ base.js
|
||
// cf. Promise.isPromise()
|
||
function is_thenable(value) {
|
||
return !!get_then_of_thenable(value);
|
||
// old style
|
||
return value && typeof value.then === 'function';
|
||
}
|
||
// library_namespace.is_thenable = is_thenable;
|
||
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-ispromise
|
||
// https://stackoverflow.com/questions/27746304/how-do-i-tell-if-an-object-is-a-promise
|
||
// test if is Promise 物件, Promise.isPromise(),
|
||
// `require('util').types.isPromise()`
|
||
function IsPromise(value) {
|
||
return value instanceof Promise;
|
||
|
||
return Promise.resolve(value) == value;
|
||
return value && value.constructor === Promise;
|
||
return value
|
||
&& Object.prototype.toString.call(value) === "[object Promise]";
|
||
|
||
// NG: only thenable
|
||
return is_thenable(value);
|
||
|
||
// assert: Should NOT access value.then
|
||
// https://promisesaplus.com/#point-75
|
||
|
||
// NG:
|
||
var then = get_then_of_thenable(value), constructor;
|
||
return then && typeof (constructor = value.constructor) === 'function'
|
||
&& typeof constructor.resolve === 'function'
|
||
&& typeof constructor.reject === 'function'
|
||
// ECMA-262, 9th edition 標準
|
||
// && typeof constructor.all === 'function'
|
||
// && typeof constructor.race === 'function'
|
||
&& then;
|
||
}
|
||
|
||
// --------------------------------------------------------
|
||
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-promise-executor
|
||
function Promise(executor) {
|
||
if (!(this instanceof Promise))
|
||
// calling a builtin Promise constructor without new is forbidden
|
||
throw new TypeError((typeof this) + ' is not a promise');
|
||
|
||
if (typeof executor !== 'function')
|
||
// calling a builtin Promise constructor without new is forbidden
|
||
throw new TypeError('Promise resolver ' + executor
|
||
+ ' is not a function');
|
||
|
||
// private:
|
||
|
||
// [[PromiseState]]
|
||
this[KEY_STATE] = PromiseState_pending;
|
||
|
||
// [[PromiseResult]]
|
||
// this[KEY_VALUE] = undefined;
|
||
|
||
// [[PromiseIsHandled]]
|
||
// this[KEY_HANDLED] = false;
|
||
|
||
// 因為本promise擱置而擱置的{Promise} or 函數。
|
||
// subscribers, deferreds
|
||
// [[PromiseFulfillReactions]] queue
|
||
// [[PromiseRejectReactions]] queue
|
||
this[KEY_REACTIONS] = [];
|
||
|
||
var promise = this;
|
||
// forced to convert to thenable
|
||
FulfillPromise(promise, 'then' in executor ? executor : {
|
||
then : executor
|
||
}, /* no_enqueue */!('then' in executor));
|
||
}
|
||
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-promise.prototype.then
|
||
// .then()會另外產生一個新的promise物件。 NewPromiseCapability()
|
||
function then(onFulfilled, onRejected) {
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-performpromisethen
|
||
if (typeof onFulfilled !== 'function')
|
||
onFulfilled = undefined;
|
||
if (typeof onRejected !== 'function')
|
||
onRejected = undefined;
|
||
|
||
if (onRejected) {
|
||
var promise = this;
|
||
do {
|
||
/**
|
||
* if promise[KEY_HANDLED] is already `true`, it means there are
|
||
* more than one handler.<br />
|
||
* e.g.,
|
||
* <code>(q=Promise.reject(2)).then(null,function h1(){});q.then(null,function h2(){});</code>
|
||
*/
|
||
promise[KEY_HANDLED] = true;
|
||
} while (IsPromise(promise = promise[KEY_DEPEND_ON]));
|
||
}
|
||
|
||
// 回傳另一個被擱置的 Promise 物件
|
||
// NewPromiseCapability(C)
|
||
var promise = new this.constructor(library_namespace.null_function);
|
||
promise[KEY_DEPEND_ON] = this;
|
||
|
||
if (this[KEY_STATE] === PromiseState_pending) {
|
||
// test case: see "test of Promise.prototype.then()" above
|
||
|
||
/**
|
||
* 等待本promise解決了再處理。<br />
|
||
* p=Promise.resolve(2);q=p.then();p!==q
|
||
*
|
||
* @see https://www.ecma-international.org/ecma-262/9.0/index.html#sec-promisereaction-records
|
||
*/
|
||
this[KEY_REACTIONS].push(onFulfilled || onRejected
|
||
// reaction = [ promise, onFulfilled, onRejected ]
|
||
? [ promise, onFulfilled, onRejected ] : promise);
|
||
|
||
} else {
|
||
// assert: `this` promise is settled, solved.
|
||
|
||
/**
|
||
* <code>
|
||
p=Promise.resolve().then(function(){})
|
||
p=Promise.resolve().then(function(a){return {a:1,b:2}})
|
||
p=Promise.resolve().then(function(a){return function(a){return a}})
|
||
q={b:2,then:5};p=Promise.resolve(2).then(a=>{return q});console.log(p);
|
||
|
||
(p=Promise.reject(2)).catch(a=>0);(q=Promise.resolve(1).then(a=>p)).catch(a=>0);p!==q
|
||
q=new Promise(r=>setTimeout(r,500));p=Promise.resolve(2).then(a=>{return q});console.log(p);
|
||
p=new Promise((r,R)=>{setTimeout(function(){r(9)},8)});p.then(p);p.then(p);
|
||
|
||
value is thenable object / function
|
||
q={then:r=>r(1)};p=Promise.resolve(2).then(a=>{return q})
|
||
q={b:2,then:r=>{console.log(this);r(this.b)}};p=Promise.resolve(2).then(a=>{return q});console.log(p);
|
||
|
||
(q=(p=Promise.reject(2)).then(3,4)).then(null,function(){});console.log(p);console.log(q);
|
||
(q=Promise.reject(2).then(function(){})).then(function(){},function(y){})
|
||
</code>
|
||
*/
|
||
var rejected = this[KEY_STATE] === PromiseState_rejected, value = this[KEY_VALUE];
|
||
EnqueueJob(function() {
|
||
PerformPromiseThen(promise,
|
||
rejected ? onRejected : onFulfilled, rejected, value);
|
||
});
|
||
}
|
||
|
||
return promise;
|
||
}
|
||
|
||
// --------------------------------------------------------
|
||
|
||
Promise.resolve = function resolve(result) {
|
||
if (IsPromise(result) && result[KEY_STATE] === PromiseState_fulfilled)
|
||
// p=Promise.resolve(1);q=Promise.resolve(p);console.log(p===q)
|
||
return result;
|
||
|
||
// NewPromiseCapability(C)
|
||
// https://www.ecma-international.org/ecma-262/9.0/index.html#sec-newpromisecapability
|
||
var promise = new this(library_namespace.null_function);
|
||
|
||
/**
|
||
* <code>
|
||
(q=new Promise(function(r,R){setTimeout(function(){R(2)},80)}));(p=Promise.resolve(q)).then(function(x){console.log('*'+x)},function(y){console.log('_'+y)});console.log(p)
|
||
</code>
|
||
*/
|
||
if (IsPromise(result) && result[KEY_STATE] !== PromiseState_pending) {
|
||
// Promise.resolve() 基本上盡可能早點得到一個確定的 Promise 物件，並且不會改變傳入的引數。
|
||
// copy result → promise
|
||
promise[KEY_STATE] = result[KEY_STATE];
|
||
promise[KEY_VALUE] = result[KEY_VALUE];
|
||
|
||
/**
|
||
* <code>
|
||
// won't throw HostPromiseRejectionTracker:
|
||
(q=Promise.reject(2)).then(null,function(){});p=Promise.resolve(q);console.log(p)
|
||
(q=new Promise(function(r,R){R(2)})).then(null,function(){});p=Promise.resolve(q);console.log(p)
|
||
</code>
|
||
*/
|
||
|
||
// will throw HostPromiseRejectionTracker:
|
||
// Promise.resolve(Promise.reject(2))
|
||
/**
|
||
* <code>
|
||
|
||
// throw:
|
||
(q=Promise.reject(2));
|
||
// no throw:
|
||
console.log(q);p=Promise.resolve(q);console.log(p)
|
||
|
||
// no throw:
|
||
(q=new Promise(function(r,R){R(2)})).then(null,function(){});
|
||
// throw:
|
||
p=new Promise(function(r){r(q)});console.log(p)
|
||
|
||
// throw:
|
||
(q=Promise.reject(2));
|
||
// throw:
|
||
console.log(q);p=new Promise(function(r,R){r(q)});console.log(p)
|
||
</code>
|
||
*/
|
||
promise[KEY_HANDLED] = true;
|
||
} else {
|
||
FulfillPromise(promise, result);
|
||
}
|
||
|
||
return promise;
|
||
};
|
||
|
||
Promise.reject = function reject(reason) {
|
||
// NewPromiseCapability(C)
|
||
var promise = new this(library_namespace.null_function);
|
||
RejectPromise(promise, reason);
|
||
return promise;
|
||
};
|
||
|
||
// @private
|
||
function GetIterator(iterable) {
|
||
if (typeof iterable === 'string') {
|
||
// return Array.from(iterable);
|
||
return iterable.split('');
|
||
}
|
||
|
||
if (!Array.isArray(iterable)) {
|
||
// e.g., {Number|Object|Function|Null|Undefined}
|
||
throw new TypeError('Argument of Promise.all: {'
|
||
+ (typeof iterable) + '} ' + iterable + ' is not iterable');
|
||
}
|
||
|
||
return iterable;
|
||
}
|
||
|
||
/**
|
||
* <code>
|
||
var promise1 = Promise.resolve(3);
|
||
var promise2 = new Promise(function(resolve, reject) {
|
||
setTimeout(function() {
|
||
reject('foo');
|
||
}, 100);
|
||
});
|
||
var promises = [ promise1, promise2 ];
|
||
|
||
Promise.allSettled(promises).then(function(results) {
|
||
results.forEach(function(result) {
|
||
console.log([ result.status, result.value, result.reason ].join(', '));
|
||
});
|
||
});
|
||
|
||
Promise.all(promises).then(function(results) {
|
||
results.forEach(function(result) {
|
||
console.log(result.join(', '));
|
||
});
|
||
});
|
||
</code>
|
||
*/
|
||
|
||
function for_all_promises(iterable, onFulfilled, onRejected) {
|
||
// -iterable.length: be sure `remaining` is negative before
|
||
// iterable.forEach() completed
|
||
var remaining = -iterable.length, result_list = [];
|
||
|
||
function fill(value, index) {
|
||
// CeL.log([ remaining, index, value ].join(', '));
|
||
result_list[index] = value;
|
||
if (--remaining === 0) {
|
||
// CeL.log('result_list: ' + result_list);
|
||
onFulfilled(result_list);
|
||
}
|
||
}
|
||
|
||
GetIterator(iterable).forEach(function(item, index) {
|
||
var then = get_then_of_thenable(item);
|
||
if (!then) {
|
||
// Not a .then() object
|
||
result_list[index] = item;
|
||
return;
|
||
}
|
||
|
||
function reject(reason) {
|
||
if (onRejected) {
|
||
// Promise.all()
|
||
onRejected(reason);
|
||
} else {
|
||
// Promise.allSettled()
|
||
fill({
|
||
status : "rejected",
|
||
reason : reason
|
||
}, index);
|
||
}
|
||
}
|
||
|
||
try {
|
||
then.call(item, function(result) {
|
||
fill(onRejected ? result : {
|
||
status : "fulfilled",
|
||
value : result
|
||
}, index);
|
||
}, reject);
|
||
} catch (e) {
|
||
reject(e);
|
||
}
|
||
|
||
remaining++;
|
||
});
|
||
|
||
remaining += iterable.length;
|
||
if (remaining === 0) {
|
||
// No .then() object
|
||
onFulfilled(result_list);
|
||
}
|
||
}
|
||
|
||
// https://eyesofkids.gitbooks.io/javascript-start-es6-promise/content/contents/promise_all_n_race.html
|
||
// Promises/A+並沒有關於Promise.reject或Promise.resolve的定義，它們是ES6 Promise標準中的實作。
|
||
// 如果參數中 promise 有一個失敗（rejected），此實例回調失敗（reject）
|
||
Promise.all = function all(iterable) {
|
||
return new this(function(onFulfilled, onRejected) {
|
||
for_all_promises(iterable, onFulfilled, onRejected);
|
||
});
|
||
};
|
||
|
||
// 拿到每個Promise的狀態 不管其是否處理成功
|
||
Promise.allSettled = function allSettled(iterable) {
|
||
return new this(function(onFulfilled/* , onRejected */) {
|
||
for_all_promises(iterable, onFulfilled);
|
||
});
|
||
};
|
||
|
||
// 如果參數中某個promise解決或拒絕，返回的promise就會解決或拒絕。
|
||
Promise.race = function race(iterable) {
|
||
return new this(function(onFulfilled, onRejected) {
|
||
GetIterator(iterable)
|
||
// won't skip anyone. Using forEach for sparse array
|
||
.forEach(function(item) {
|
||
try {
|
||
var then = get_then_of_thenable(item);
|
||
if (then) {
|
||
then.call(item, onFulfilled, onRejected);
|
||
} else {
|
||
onFulfilled(item);
|
||
}
|
||
} catch (e) {
|
||
onRejected(e);
|
||
}
|
||
});
|
||
});
|
||
};
|
||
|
||
// https://sung.codes/blog/2019/05/18/promise-race-vs-promise-any-and-promise-all-vs-promise-allsettled/
|
||
Promise.any = function any(iterable) {
|
||
return new this(function(onFulfilled, onRejected) {
|
||
var remaining = 0, waiting;
|
||
GetIterator(iterable)
|
||
// won't skip anyone. Using forEach for sparse array
|
||
.forEach(function(item) {
|
||
try {
|
||
var then = get_then_of_thenable(item);
|
||
if (then) {
|
||
remaining++;
|
||
then.call(item, function(item) {
|
||
remaining--;
|
||
some_fulfilled = true;
|
||
onFulfilled(item);
|
||
}, function(item) {
|
||
// TODO: check what to onRejected()
|
||
// TODO: Using AggregateError object
|
||
if (--remaining === 0 && waiting)
|
||
onRejected(item);
|
||
});
|
||
} else {
|
||
onFulfilled(item);
|
||
}
|
||
} catch (e) {
|
||
// ignores rejections. Ignore error
|
||
}
|
||
});
|
||
if (remaining > 0)
|
||
waiting = true;
|
||
else
|
||
onFulfilled();
|
||
});
|
||
};
|
||
|
||
// --------------------------------------------------------
|
||
|
||
// https://developer.mozilla.org/zh-TW/docs/Web/JavaScript/Reference/Global_Objects/Promise/finally
|
||
function Promise_finally(onFinally) {
|
||
if (typeof onFinally !== 'function')
|
||
// p=Promise.resolve(2)['finally'](3).then(function(v){console.log(v)});console.log(p)
|
||
return this.then();
|
||
|
||
if (false)
|
||
library_namespace.debug('creating onFinally step: ' + onFinally, 0,
|
||
'Promise_finally');
|
||
var _Promise = this.constructor || globalThis.Promise;
|
||
// onFinally won't get any arguments
|
||
return this.then(function(value) {
|
||
return _Promise.resolve(onFinally()).then(function() {
|
||
// inherit value
|
||
return value;
|
||
});
|
||
}, function(value) {
|
||
return _Promise.resolve(onFinally()).then(function() {
|
||
// return _Promise.reject(value);
|
||
throw value;
|
||
});
|
||
});
|
||
}
|
||
|
||
// https://github.com/tc39/proposal-promise-try
|
||
// a syntactic sugar
|
||
function Promise_try(executor) {
|
||
return new this(function(resolve/* , reject */) {
|
||
return resolve(executor());
|
||
});
|
||
}
|
||
|
||
// Promise.allSettled()
|
||
//
|
||
// Cannot catch Promise.allSettled(). Only use Using Promise.allSettled()
|
||
// when you do not care errors. Or using `Promise.all().then(, cacher)`
|
||
// before Promise.allSettled() to catch error.
|
||
//
|
||
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/allSettled
|
||
// https://github.com/es-shims/Promise.allSettled/blob/master/implementation.js
|
||
function Promise_allSettled(iterable) {
|
||
function onFulfilled(result) {
|
||
return {
|
||
status : "fulfilled",
|
||
value : result
|
||
};
|
||
}
|
||
|
||
function onRejected(reason) {
|
||
return {
|
||
status : "rejected",
|
||
reason : reason
|
||
};
|
||
}
|
||
|
||
var _Promise = this;
|
||
iterable = Array.from(iterable, function(promise) {
|
||
if (!is_thenable(promise))
|
||
promise = _Promise.resolve(promise);
|
||
return promise.then(onFulfilled, onRejected);
|
||
});
|
||
return _Promise.all(iterable);
|
||
}
|
||
|
||
// --------------------------------------------------------
|
||
|
||
function Promise_toString() {
|
||
return 'Promise {<i style="color:#43e">['
|
||
+ (this[KEY_STATE] === PromiseState_pending ? 'pending'
|
||
: this[KEY_STATE] === PromiseState_rejected ? 'rejected'
|
||
: 'fulfilled') + ']</i>: ' + this[KEY_VALUE]
|
||
+ '}';
|
||
}
|
||
|
||
// Do not set `Promise.prototype={...}`,
|
||
// so we can use `new this.constructor()`
|
||
Object.assign(Promise.prototype, {
|
||
// for debug only
|
||
// toString : Promise_toString,
|
||
|
||
then : then,
|
||
// a syntactic sugar
|
||
// caught
|
||
'catch' : function Promise_catch(onRejected) {
|
||
return this.then(undefined, onRejected);
|
||
}
|
||
});
|
||
|
||
set_method(globalThis, {
|
||
Promise : Promise
|
||
}, 'function');
|
||
|
||
set_method(globalThis.Promise, {
|
||
'try' : Promise_try,
|
||
allSettled : Promise_allSettled
|
||
}, 'function');
|
||
|
||
set_method(globalThis.Promise.prototype, {
|
||
// finale
|
||
'finally' : Promise_finally
|
||
}, 'function');
|
||
|
||
// --------------------------------------------------------
|
||
|
||
if (typeof Symbol === 'function') {
|
||
// Symbol.prototype.description
|
||
if (!('description' in Symbol.prototype)) {
|
||
// Object.getOwnPropertyDescriptor(Symbol.prototype, 'description');
|
||
Object.defineProperty(Symbol.prototype, 'description', {
|
||
enumerable : false,
|
||
configurable : true,
|
||
get : function() {
|
||
var matched = String(this).match(/^Symbol\(([\s\S]*)\)$/);
|
||
return matched[1];
|
||
}
|
||
});
|
||
}
|
||
}
|
||
|
||
// --------------------------------------------------------
|
||
|
||
/**
|
||
* defective polyfill for W3C URL API, URLSearchParams() @ CeL.application.net.
|
||
*
|
||
* defective polyfill for W3C fetch API @ CeL.application.net.Ajax.
|
||
*/
|
||
|
||
// ----------------------------------------------------------------------------------------------------------------------------------------------------------//
|
||
return (_// JSDT:_module_
|
||
);
|
||
}
|