Clone engine262 in /engine262

engine262/inspector/server.js

@@ -0,0 +1,87 @@
+'use strict';
+
+const http = require('http');
+const WebSocket = require('ws'); // eslint-disable-line import/no-extraneous-dependencies
+const packageJson = require('../package.json');
+const protocol = require('./js_protocol.json');
+const methods = require('./methods');
+
+const server = http.createServer((req, res) => {
+  if (req.method !== 'GET') {
+    res.writeHead(405);
+    res.end();
+    return;
+  }
+
+  const json = (obj) => {
+    const s = JSON.stringify(obj);
+    res.writeHead(200, {
+      'Content-Type': 'application/json',
+      'Content-Length': Buffer.byteLength(s),
+    });
+    res.end(s);
+  };
+
+  switch (req.url) {
+    case '/json':
+    case '/json/list':
+      json([{
+        description: `${packageJson.name} instance`,
+        devtoolsFrontendUrl: 'chrome-devtools://devtools/bundled/js_app.html?experiments=true&v8only=true&ws=localhost:9229/',
+        devtoolsFrontendUrlCompat: 'chrome-devtools://devtools/bundled/inspector.html?experiments=true&v8only=true&ws=localhost:9229/',
+        faviconUrl: 'https://avatars0.githubusercontent.com/u/51185628',
+        id: 'inspector.0',
+        title: 'engine262',
+        type: 'node',
+        url: `file://${process.cwd()}`,
+        webSocketDebuggerUrl: 'ws://localhost:9229/',
+      }]);
+      break;
+    case '/json/version':
+      json({
+        'Browser': `${packageJson.name}/v${packageJson.version}`,
+        'Protocol-Version': `${protocol.version.major}.${protocol.version.minor}`,
+      });
+      break;
+    case '/json/protocol':
+      json(protocol);
+      break;
+    default:
+      res.writeHead(404);
+      res.end();
+      break;
+  }
+});
+
+const wss = new WebSocket.Server({ server });
+
+wss.on('connection', (ws) => {
+  const send = (obj) => {
+    const s = JSON.stringify(obj);
+    // console.log('<-', s);
+    ws.send(s);
+  };
+
+  ws._socket.unref();
+
+  const context = {
+    sendEvent(event, params) {
+      send({ method: event, params });
+    },
+  };
+
+  ws.on('message', (data) => {
+    // console.log('->', data);
+    const { id, method, params } = JSON.parse(data);
+    const [k, v] = method.split('.');
+    Promise.resolve(methods[k][v](params, context))
+      .then((result = {}) => {
+        send({ id, result });
+      });
+  });
+});
+
+server.listen(9229, '127.0.0.1', () => {
+  console.log('Debugger listening at localhost:9229'); // eslint-disable-line no-console
+});
+server.unref();