From 0f4d36938fd0d844f548aa5a7f7e7842df8dfb41 Mon Sep 17 00:00:00 2001 From: Darius Jahandarie Date: Wed, 8 Nov 2023 03:11:35 +0900 Subject: Switch to vitest for ESM support; other fixes --- dev/vm.js | 204 -------------------------------------------------------------- 1 file changed, 204 deletions(-) delete mode 100644 dev/vm.js (limited to 'dev/vm.js') diff --git a/dev/vm.js b/dev/vm.js deleted file mode 100644 index c3266443..00000000 --- a/dev/vm.js +++ /dev/null @@ -1,204 +0,0 @@ -/* - * Copyright (C) 2023 Yomitan Authors - * Copyright (C) 2020-2022 Yomichan Authors - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -const fs = require('fs'); -const vm = require('vm'); -const path = require('path'); -const assert = require('assert'); -const crypto = require('crypto'); - - -function getContextEnvironmentRecords(context, names) { - // Enables export of values from the declarative environment record - if (!Array.isArray(names) || names.length === 0) { - return []; - } - - let scriptSource = '(() => {\n "use strict";\n const results = [];'; - for (const name of names) { - scriptSource += `\n try { results.push(${name}); } catch (e) { results.push(void 0); }`; - } - scriptSource += '\n return results;\n})();'; - - const script = new vm.Script(scriptSource, {filename: 'getContextEnvironmentRecords'}); - - const contextHasNames = Object.prototype.hasOwnProperty.call(context, 'names'); - const contextNames = context.names; - context.names = names; - - const results = script.runInContext(context, {}); - - if (contextHasNames) { - context.names = contextNames; - } else { - delete context.names; - } - - return Array.from(results); -} - -function isDeepStrictEqual(val1, val2) { - if (val1 === val2) { return true; } - - if (Array.isArray(val1)) { - if (Array.isArray(val2)) { - return isArrayDeepStrictEqual(val1, val2); - } - } else if (typeof val1 === 'object' && val1 !== null) { - if (typeof val2 === 'object' && val2 !== null) { - return isObjectDeepStrictEqual(val1, val2); - } - } - - return false; -} - -function isArrayDeepStrictEqual(val1, val2) { - const ii = val1.length; - if (ii !== val2.length) { return false; } - - for (let i = 0; i < ii; ++i) { - if (!isDeepStrictEqual(val1[i], val2[i])) { - return false; - } - } - - return true; -} - -function isObjectDeepStrictEqual(val1, val2) { - const keys1 = Object.keys(val1); - const keys2 = Object.keys(val2); - - if (keys1.length !== keys2.length) { return false; } - - const keySet = new Set(keys1); - for (const key of keys2) { - if (!keySet.delete(key)) { return false; } - } - - for (const key of keys1) { - if (!isDeepStrictEqual(val1[key], val2[key])) { - return false; - } - } - - const tag1 = Object.prototype.toString.call(val1); - const tag2 = Object.prototype.toString.call(val2); - if (tag1 !== tag2) { return false; } - - return true; -} - -function deepStrictEqual(actual, expected) { - try { - // This will fail on prototype === comparison on cross context objects - assert.deepStrictEqual(actual, expected); - } catch (e) { - if (!isDeepStrictEqual(actual, expected)) { - throw e; - } - } -} - - -function createURLClass() { - const BaseURL = URL; - const result = function URL(url) { - const u = new BaseURL(url); - this.hash = u.hash; - this.host = u.host; - this.hostname = u.hostname; - this.href = u.href; - this.origin = u.origin; - this.password = u.password; - this.pathname = u.pathname; - this.port = u.port; - this.protocol = u.protocol; - this.search = u.search; - this.searchParams = u.searchParams; - this.username = u.username; - }; - return result; -} - - -class VM { - constructor(context={}) { - context.URL = createURLClass(); - context.crypto = { - getRandomValues: (array) => { - const buffer = crypto.randomBytes(array.byteLength); - buffer.copy(array); - return array; - } - }; - this._context = vm.createContext(context); - this._assert = { - deepStrictEqual - }; - } - - get context() { - return this._context; - } - - get assert() { - return this._assert; - } - - get(names) { - if (typeof names === 'string') { - return getContextEnvironmentRecords(this._context, [names])[0]; - } else if (Array.isArray(names)) { - return getContextEnvironmentRecords(this._context, names); - } else { - throw new Error('Invalid argument'); - } - } - - set(values) { - if (typeof values === 'object' && values !== null) { - Object.assign(this._context, values); - } else { - throw new Error('Invalid argument'); - } - } - - execute(fileNames) { - const single = !Array.isArray(fileNames); - if (single) { - fileNames = [fileNames]; - } - - const results = []; - for (const fileName of fileNames) { - const absoluteFileName = path.resolve(__dirname, '..', 'ext', fileName); - const source = fs.readFileSync(absoluteFileName, {encoding: 'utf8'}); - const script = new vm.Script(source, {filename: absoluteFileName}); - results.push(script.runInContext(this._context, {})); - } - - return single ? results[0] : results; - } -} - - -module.exports = { - VM -}; -- cgit v1.2.3