mirror of
https://github.com/google/comprehensive-rust.git
synced 2024-11-24 17:06:37 +02:00
88 lines
3.5 KiB
JavaScript
88 lines
3.5 KiB
JavaScript
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Setup cookie consent banner.
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var consent = document.createElement('script');
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consent.setAttribute('data-autoload-cookie-consent-bar', 'true');
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consent.setAttribute('src', 'https://www.gstatic.com/brandstudio/kato/cookie_choice_component/cookie_consent_bar.v3.js');
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document.head.appendChild(consent);
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// Load and configure Google Analytics.
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var ga4 = document.createElement('script');
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ga4.setAttribute('src', 'https://www.googletagmanager.com/gtag/js?id=G-ZN78TEJMRW');
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document.head.appendChild(ga4);
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window.dataLayer = window.dataLayer || [];
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function gtag(){dataLayer.push(arguments);}
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gtag('js', new Date());
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gtag('config', 'G-ZN78TEJMRW');
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// Look through all Playgrounds on the page to determine if the code snippet
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// matches one of the. If the code is different from all Playgrounds, we
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// conclude that the user modified the Playground before submitting it.
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function isPlaygroundCodeModified(code) {
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// It sounds expensive to look through every Playground, but there are
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// normally at most two Playground instances on a page.
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let playgrounds = Array.from(document.querySelectorAll(".playground"));
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return playgrounds.every(playground => {
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let code_block = playground.querySelector("code");
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if (window.ace && code_block.classList.contains("editable")) {
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let editor = window.ace.edit(code_block);
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return code != editor.originalCode;
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} else {
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return code != code_block.textContent;
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}
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});
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}
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// Monkey-patch the window.fetch function so we can track the Playground
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// executions.
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const playgroundUrl = 'https://play.rust-lang.org/evaluate.json';
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const { fetch: originalFetch } = window;
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window.fetch = async (...args) => {
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let [resource, config ] = args;
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if (resource != playgroundUrl) {
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return originalFetch(resource, config);
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}
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const startTime = window.performance.now();
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let endTime, errorMessage;
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try {
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// The fetch_with_timeout function defaults to a 6000 ms timeout. We use a
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// slightly shorter timeout so that we can catch and log the error.
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config.signal = AbortSignal.timeout(5500);
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let response = await originalFetch(resource, config);
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payload = await response.json();
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errorMessage = (payload.error == null) ? null : 'compilation_error';
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// Return object compatible with the unpackign done in book.js.
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return {'json': () => payload};
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} catch (error) {
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// fetch seems to always return AbortError, despite the example on
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// https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal/timeout.
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if (error.name == 'AbortError' || error.name == 'TimeoutError') {
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error = new Error('timeout');
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}
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errorMessage = error.message;
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throw error;
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} finally {
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endTime = window.performance.now();
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let code = JSON.parse(config.body).code;
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gtag("event", "playground", {
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"modified": isPlaygroundCodeModified(code),
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"error": errorMessage,
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"latency": (endTime - startTime) / 1000,
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});
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}
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};
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