128 lines
5.8 KiB
JavaScript
128 lines
5.8 KiB
JavaScript
"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __exportStar = (this && this.__exportStar) || function(m, exports) {
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for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
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};
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.shouldInterruptAfterDeadline = exports.newAsyncContext = exports.newAsyncRuntime = exports.getQuickJSSync = exports.getQuickJS = exports.errors = exports.RELEASE_SYNC = exports.RELEASE_ASYNC = exports.DEBUG_SYNC = exports.DEBUG_ASYNC = exports.newQuickJSAsyncWASMModule = exports.newQuickJSWASMModule = void 0;
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// Build variants
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const variants_1 = require("./variants");
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Object.defineProperty(exports, "newQuickJSWASMModule", { enumerable: true, get: function () { return variants_1.newQuickJSWASMModule; } });
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Object.defineProperty(exports, "newQuickJSAsyncWASMModule", { enumerable: true, get: function () { return variants_1.newQuickJSAsyncWASMModule; } });
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Object.defineProperty(exports, "DEBUG_ASYNC", { enumerable: true, get: function () { return variants_1.DEBUG_ASYNC; } });
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Object.defineProperty(exports, "DEBUG_SYNC", { enumerable: true, get: function () { return variants_1.DEBUG_SYNC; } });
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Object.defineProperty(exports, "RELEASE_ASYNC", { enumerable: true, get: function () { return variants_1.RELEASE_ASYNC; } });
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Object.defineProperty(exports, "RELEASE_SYNC", { enumerable: true, get: function () { return variants_1.RELEASE_SYNC; } });
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// Export helpers
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__exportStar(require("./vm-interface"), exports);
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__exportStar(require("./lifetime"), exports);
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/** Collects the informative errors this library may throw. */
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exports.errors = __importStar(require("./errors"));
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__exportStar(require("./deferred-promise"), exports);
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__exportStar(require("./module-test"), exports);
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let singleton = undefined;
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let singletonPromise = undefined;
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/**
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* Get a shared singleton {@link QuickJSWASMModule}. Use this to evaluate code
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* or create Javascript environments.
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*
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* This is the top-level entrypoint for the quickjs-emscripten library.
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*
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* If you need strictest possible isolation guarantees, you may create a
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* separate {@link QuickJSWASMModule} via {@link newQuickJSWASMModule}.
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*
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* To work with the asyncified version of this library, see these functions:
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*
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* - {@link newAsyncRuntime}.
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* - {@link newAsyncContext}.
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* - {@link newQuickJSAsyncWASMModule}.
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*/
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async function getQuickJS() {
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singletonPromise ?? (singletonPromise = (0, variants_1.newQuickJSWASMModule)().then((instance) => {
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singleton = instance;
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return instance;
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}));
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return await singletonPromise;
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}
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exports.getQuickJS = getQuickJS;
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/**
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* Provides synchronous access to the shared {@link QuickJSWASMModule} instance returned by {@link getQuickJS}, as long as
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* least once.
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* @throws If called before `getQuickJS` resolves.
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*/
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function getQuickJSSync() {
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if (!singleton) {
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throw new Error("QuickJS not initialized. Await getQuickJS() at least once.");
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}
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return singleton;
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}
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exports.getQuickJSSync = getQuickJSSync;
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/**
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* Create a new [[QuickJSAsyncRuntime]] in a separate WebAssembly module.
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*
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* Each runtime is isolated in a separate WebAssembly module, so that errors in
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* one runtime cannot contaminate another runtime, and each runtime can execute
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* an asynchronous action without conflicts.
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*
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* Note that there is a hard limit on the number of WebAssembly modules in older
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* versions of v8:
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* https://bugs.chromium.org/p/v8/issues/detail?id=12076
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*/
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async function newAsyncRuntime(options) {
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const module = await (0, variants_1.newQuickJSAsyncWASMModule)();
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return module.newRuntime(options);
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}
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exports.newAsyncRuntime = newAsyncRuntime;
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/**
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* Create a new [[QuickJSAsyncContext]] (with an associated runtime) in an
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* separate WebAssembly module.
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*
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* Each context is isolated in a separate WebAssembly module, so that errors in
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* one runtime cannot contaminate another runtime, and each runtime can execute
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* an asynchronous action without conflicts.
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*
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* Note that there is a hard limit on the number of WebAssembly modules in older
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* versions of v8:
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* https://bugs.chromium.org/p/v8/issues/detail?id=12076
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*/
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async function newAsyncContext(options) {
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const module = await (0, variants_1.newQuickJSAsyncWASMModule)();
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return module.newContext(options);
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}
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exports.newAsyncContext = newAsyncContext;
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/**
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* Returns an interrupt handler that interrupts Javascript execution after a deadline time.
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*
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* @param deadline - Interrupt execution if it's still running after this time.
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* Number values are compared against `Date.now()`
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*/
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function shouldInterruptAfterDeadline(deadline) {
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const deadlineAsNumber = typeof deadline === "number" ? deadline : deadline.getTime();
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return function () {
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return Date.now() > deadlineAsNumber;
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};
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}
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exports.shouldInterruptAfterDeadline = shouldInterruptAfterDeadline;
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//# sourceMappingURL=index.js.map
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