codigo0/node_modules/happy-dom/lib/module/ModuleFactory.js

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import * as PropertySymbol from '../PropertySymbol.js';
import CSSModule from './CSSModule.js';
import JSONModule from './JSONModule.js';
import UnresolvedModule from './UnresolvedModule.js';
import WindowBrowserContext from '../window/WindowBrowserContext.js';
import ResourceFetch from '../fetch/ResourceFetch.js';
import ECMAScriptModule from './ECMAScriptModule.js';
import ModuleURLUtility from './ModuleURLUtility.js';
/**
* Module factory.
*/
export default class ModuleFactory {
window;
parentURL;
/**
* Constructor.
*
* @param window Window.
* @param parentURL Parent URL.
*/
constructor(window, parentURL) {
this.window = window;
this.parentURL = parentURL;
}
/**
* Fetches the source code of the module from the given URL and creates a new module instance.
*
* @param url Module URL.
* @param [parent] Parent module.
* @param [options] Options.
* @param [options.with] Options.
* @param [options.with.type] Module type.
*/
async getModule(url, options) {
const window = this.window;
const parentURL = this.parentURL;
const absoluteURL = ModuleURLUtility.getURL(window, parentURL, url);
const absoluteURLString = absoluteURL.href;
const type = options?.with?.type || 'esm';
if (type !== 'esm' && type !== 'css' && type !== 'json') {
throw new window.TypeError(`Failed to import module "${absoluteURL}" from "${parentURL}": Unknown type "${type}"`);
}
const cached = window[PropertySymbol.modules][type].get(absoluteURLString);
if (cached) {
if (cached instanceof UnresolvedModule) {
await new Promise((resolve, reject) => {
cached.addResolveListener(resolve, reject);
});
return window[PropertySymbol.modules][type].get(absoluteURLString);
}
return cached;
}
const browserFrame = new WindowBrowserContext(window).getBrowserFrame();
if (!browserFrame) {
throw new window.TypeError(`Failed to import module "${absoluteURL}" from "${parentURL}": Window is closed and is no longer attached to a frame`);
}
const unresolvedModule = new UnresolvedModule({ window, url: absoluteURL });
const readyStateManager = window[PropertySymbol.readyStateManager];
const taskID = readyStateManager.startTask();
window[PropertySymbol.modules][type].set(absoluteURLString, unresolvedModule);
const resourceFetch = new ResourceFetch(window);
let response;
try {
response = await resourceFetch.fetch(absoluteURL, 'module');
}
catch (error) {
readyStateManager.endTask(taskID);
unresolvedModule.resolve(error);
throw error;
}
readyStateManager.endTask(taskID);
let module;
switch (type) {
case 'json':
module = new JSONModule({ window, url: absoluteURL, source: response.content });
break;
case 'css':
module = new CSSModule({ window, url: absoluteURL, source: response.content });
break;
case 'esm':
module = new ECMAScriptModule({
window,
url: absoluteURL,
source: response.content,
sourceURL: response.virtualServerFile
});
break;
}
window[PropertySymbol.modules][type].set(absoluteURLString, module);
unresolvedModule.resolve();
return module;
}
/**
* Imports a module.
*
* @param window Window.
* @param parentURL Parent URL.
* @param url URL.
* @param [options] Options.
* @param [options.with] With.
* @param [options.with.type] Type.
*/
async importModule(url, options) {
const browserFrame = new WindowBrowserContext(this.window).getBrowserFrame();
if (!browserFrame) {
return {};
}
const asyncTaskManager = browserFrame[PropertySymbol.asyncTaskManager];
const taskID = asyncTaskManager?.startTask();
const module = await this.getModule(url, options);
const exports = await module.evaluate();
asyncTaskManager.endTask(taskID);
return exports;
}
}
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