Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 | 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 39x 47x 47x 46x 46x 46x 46x 46x 46x 46x 46x 46x 112x 112x 1x 1x 1x 111x 111x 111x 111x 111x 112x 45x 45x 112x 47x 39x 39x 47x 47x 47x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 46x 47x 39x 144x 144x 144x 144x 144x 144x 144x 144x 23844x 579x 579x 579x 144x 144x 144x 39x 36x 36x 36x 36x 36x 36x 36x 36x 36x 36x 30x 30x 30x 30x 30x 30x 30x 36x 6x 6x 6x 36x 36x 36x 36x 36x 144x 36x 36x 7567x 7567x 7567x 7567x 36x 36x 36x 36x 36x 36x 36x 36x 36x 36x 36x 36x 36x 31x 31x 31x 31x 32x 1x 1x 36x 36x 36x 36x 72x 72x 72x 72x 72x 72x 72x 72x 71x 71x 71x 71x 71x 71x 72x 72x 72x 36x 36x 91x 91x 46x 46x 46x 91x 36x 36x 53x 53x 53x 52x 52x 52x 52x 64x 64x 64x 64x 48x 48x 48x 63x 15x 15x 15x 64x 3x 3x 53x 36x 36x 352x 352x 352x 352x 352x 36x 36x 352x 352x 352x 36x 36x 36x 104x 104x 104x 104x 104x 104x 104x 104x 104x 104x 104x 104x 104x 104x 104x 46x 46x 104x 104x 104x 104x 104x 104x 104x 36x 39x 37x 37x 37x 37x 37x 37x 37x 37x 37x 37x 37x 37x 5x 5x 5x 5x 5x 37x 4x 4x 4x 4x 32x 28x 2x 2x 2x 2x 2x 1x 1x 1x 1x 1x 1x 1x 36x 36x 36x 36x 37x 39x 38x 38x 38x 38x 1x 1x 1x 1x 1x 1x 1x 1x 37x 37x 37x 37x 37x 37x 37x 2x 1x 1x 1x 1x 1x 1x 1x 2x 2x 2x 37x 37x 38x 39x | 'use strict';
const {
ArrayPrototypeConcat,
ArrayPrototypeForEach,
ArrayPrototypeJoin,
ArrayPrototypeMap,
ArrayPrototypePop,
ArrayPrototypeShift,
ArrayPrototypeSlice,
FunctionPrototypeBind,
Number,
Promise,
PromisePrototypeThen,
PromiseResolve,
Proxy,
RegExpPrototypeExec,
RegExpPrototypeSymbolSplit,
StringPrototypeEndsWith,
StringPrototypeSplit,
} = primordials;
const { spawn } = require('child_process');
const { EventEmitter } = require('events');
const net = require('net');
const util = require('util');
const {
setInterval: pSetInterval,
setTimeout: pSetTimeout,
} = require('timers/promises');
const {
AbortController,
} = require('internal/abort_controller');
// TODO(aduh95): remove console calls
const console = require('internal/console/global');
const { 0: InspectClient, 1: createRepl } =
[
require('internal/debugger/inspect_client'),
require('internal/debugger/inspect_repl'),
];
const debuglog = util.debuglog('inspect');
const { ERR_DEBUGGER_STARTUP_ERROR } = require('internal/errors').codes;
async function portIsFree(host, port, timeout = 9999) {
if (port === 0) return; // Binding to a random port.
const retryDelay = 150;
const ac = new AbortController();
const { signal } = ac;
pSetTimeout(timeout).then(() => ac.abort());
const asyncIterator = pSetInterval(retryDelay);
while (true) {
await asyncIterator.next();
if (signal.aborted) {
throw new ERR_DEBUGGER_STARTUP_ERROR(
`Timeout (${timeout}) waiting for ${host}:${port} to be free`);
}
const error = await new Promise((resolve) => {
const socket = net.connect(port, host);
socket.on('error', resolve);
socket.on('connect', resolve);
});
if (error?.code === 'ECONNREFUSED') {
return;
}
}
}
const debugRegex = /Debugger listening on ws:\/\/\[?(.+?)\]?:(\d+)\//;
async function runScript(script, scriptArgs, inspectHost, inspectPort,
childPrint) {
await portIsFree(inspectHost, inspectPort);
const args = ArrayPrototypeConcat(
[`--inspect-brk=${inspectPort}`, script],
scriptArgs);
const child = spawn(process.execPath, args);
child.stdout.setEncoding('utf8');
child.stderr.setEncoding('utf8');
child.stdout.on('data', (chunk) => childPrint(chunk, 'stdout'));
child.stderr.on('data', (chunk) => childPrint(chunk, 'stderr'));
let output = '';
return new Promise((resolve) => {
function waitForListenHint(text) {
output += text;
const debug = RegExpPrototypeExec(debugRegex, output);
if (debug) {
const host = debug[1];
const port = Number(debug[2]);
child.stderr.removeListener('data', waitForListenHint);
resolve([child, port, host]);
}
}
child.stderr.on('data', waitForListenHint);
});
}
function createAgentProxy(domain, client) {
const agent = new EventEmitter();
agent.then = (then, _catch) => {
// TODO: potentially fetch the protocol and pretty-print it here.
const descriptor = {
[util.inspect.custom](depth, { stylize }) {
return stylize(`[Agent ${domain}]`, 'special');
},
};
return PromisePrototypeThen(PromiseResolve(descriptor), then, _catch);
};
return new Proxy(agent, {
__proto__: null,
get(target, name) {
if (name in target) return target[name];
return function callVirtualMethod(params) {
return client.callMethod(`${domain}.${name}`, params);
};
},
});
}
class NodeInspector {
constructor(options, stdin, stdout) {
this.options = options;
this.stdin = stdin;
this.stdout = stdout;
this.paused = true;
this.child = null;
if (options.script) {
this._runScript = FunctionPrototypeBind(
runScript, null,
options.script,
options.scriptArgs,
options.host,
options.port,
FunctionPrototypeBind(this.childPrint, this));
} else {
this._runScript =
() => PromiseResolve([null, options.port, options.host]);
}
this.client = new InspectClient();
this.domainNames = ['Debugger', 'HeapProfiler', 'Profiler', 'Runtime'];
ArrayPrototypeForEach(this.domainNames, (domain) => {
this[domain] = createAgentProxy(domain, this.client);
});
this.handleDebugEvent = (fullName, params) => {
const { 0: domain, 1: name } = StringPrototypeSplit(fullName, '.');
if (domain in this) {
this[domain].emit(name, params);
}
};
this.client.on('debugEvent', this.handleDebugEvent);
const startRepl = createRepl(this);
// Handle all possible exits
process.on('exit', () => this.killChild());
const exitCodeZero = () => process.exit(0);
process.once('SIGTERM', exitCodeZero);
process.once('SIGHUP', exitCodeZero);
(async () => {
try {
await this.run();
const repl = await startRepl();
this.repl = repl;
this.repl.on('exit', exitCodeZero);
this.paused = false;
} catch (error) {
process.nextTick(() => { throw error; });
}
})();
}
suspendReplWhile(fn) {
if (this.repl) {
this.repl.pause();
}
this.stdin.pause();
this.paused = true;
return (async () => {
try {
await fn();
this.paused = false;
if (this.repl) {
this.repl.resume();
this.repl.displayPrompt();
}
this.stdin.resume();
} catch (error) {
process.nextTick(() => { throw error; });
}
})();
}
killChild() {
this.client.reset();
if (this.child) {
this.child.kill();
this.child = null;
}
}
async run() {
this.killChild();
const { 0: child, 1: port, 2: host } = await this._runScript();
this.child = child;
this.print(`connecting to ${host}:${port} ..`, false);
for (let attempt = 0; attempt < 5; attempt++) {
debuglog('connection attempt #%d', attempt);
this.stdout.write('.');
try {
await this.client.connect(port, host);
debuglog('connection established');
this.stdout.write(' ok\n');
return;
} catch (error) {
debuglog('connect failed', error);
await pSetTimeout(1000);
}
}
this.stdout.write(' failed to connect, please retry\n');
process.exit(1);
}
clearLine() {
if (this.stdout.isTTY) {
this.stdout.cursorTo(0);
this.stdout.clearLine(1);
} else {
this.stdout.write('\b');
}
}
print(text, appendNewline = false) {
this.clearLine();
this.stdout.write(appendNewline ? `${text}\n` : text);
}
#stdioBuffers = { stdout: '', stderr: '' };
childPrint(text, which) {
const lines = RegExpPrototypeSymbolSplit(
/\r\n|\r|\n/g,
this.#stdioBuffers[which] + text);
this.#stdioBuffers[which] = '';
if (lines[lines.length - 1] !== '') {
this.#stdioBuffers[which] = ArrayPrototypePop(lines);
}
const textToPrint = ArrayPrototypeJoin(
ArrayPrototypeMap(lines, (chunk) => `< ${chunk}`),
'\n');
if (lines.length) {
this.print(textToPrint, true);
if (!this.paused) {
this.repl.displayPrompt(true);
}
}
if (StringPrototypeEndsWith(
textToPrint,
'Waiting for the debugger to disconnect...\n'
)) {
this.killChild();
}
}
}
function parseArgv(args) {
const target = ArrayPrototypeShift(args);
let host = '127.0.0.1';
let port = 9229;
let isRemote = false;
let script = target;
let scriptArgs = args;
const hostMatch = RegExpPrototypeExec(/^([^:]+):(\d+)$/, target);
const portMatch = RegExpPrototypeExec(/^--port=(\d+)$/, target);
if (hostMatch) {
// Connecting to remote debugger
host = hostMatch[1];
port = Number(hostMatch[2]);
isRemote = true;
script = null;
} else if (portMatch) {
// Start on custom port
port = Number(portMatch[1]);
script = args[0];
scriptArgs = ArrayPrototypeSlice(args, 1);
} else if (args.length === 1 && RegExpPrototypeExec(/^\d+$/, args[0]) !== null &&
target === '-p') {
// Start debugger against a given pid
const pid = Number(args[0]);
try {
process._debugProcess(pid);
} catch (e) {
if (e.code === 'ESRCH') {
console.error(`Target process: ${pid} doesn't exist.`);
process.exit(1);
}
throw e;
}
script = null;
isRemote = true;
}
return {
host, port, isRemote, script, scriptArgs,
};
}
function startInspect(argv = ArrayPrototypeSlice(process.argv, 2),
stdin = process.stdin,
stdout = process.stdout) {
if (argv.length < 1) {
const invokedAs = `${process.argv0} ${process.argv[1]}`;
console.error(`Usage: ${invokedAs} script.js`);
console.error(` ${invokedAs} <host>:<port>`);
console.error(` ${invokedAs} --port=<port>`);
console.error(` ${invokedAs} -p <pid>`);
process.exit(1);
}
const options = parseArgv(argv);
const inspector = new NodeInspector(options, stdin, stdout);
stdin.resume();
function handleUnexpectedError(e) {
if (e.code !== 'ERR_DEBUGGER_STARTUP_ERROR') {
console.error('There was an internal error in Node.js. ' +
'Please report this bug.');
console.error(e.message);
console.error(e.stack);
} else {
console.error(e.message);
}
if (inspector.child) inspector.child.kill();
process.exit(1);
}
process.on('uncaughtException', handleUnexpectedError);
}
exports.start = startInspect;
|