@react-native/dev-middleware
Version:
Dev server middleware for React Native
78 lines (76 loc) • 2.3 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true,
});
exports.default = void 0;
var _timers = require("timers");
var _util = _interopRequireDefault(require("util"));
function _interopRequireDefault(e) {
return e && e.__esModule ? e : { default: e };
}
const debug = require("debug")("Metro:InspectorProxy");
const debugCDPMessages = require("debug")("Metro:InspectorProxyCDPMessages");
const CDP_MESSAGES_BATCH_DEBUGGING_THROTTLE_MS = 5000;
function getCDPLogPrefix(destination) {
return _util.default.format(
"[(Debugger) %s (Proxy) %s (Device)]",
destination === "DebuggerToProxy"
? "->"
: destination === "ProxyToDebugger"
? "<-"
: " ",
destination === "ProxyToDevice"
? "->"
: destination === "DeviceToProxy"
? "<-"
: " "
);
}
class CDPMessagesLogging {
#cdpMessagesLoggingBatchingFn = {
DebuggerToProxy: () => {},
ProxyToDebugger: () => {},
DeviceToProxy: () => {},
ProxyToDevice: () => {},
};
constructor() {
if (debug.enabled) {
this.#initializeThrottledCDPMessageLogging();
}
}
#initializeThrottledCDPMessageLogging() {
const batchingCounters = {
DebuggerToProxy: 0,
ProxyToDebugger: 0,
DeviceToProxy: 0,
ProxyToDevice: 0,
};
Object.keys(batchingCounters).forEach((destination) => {
let timeout = null;
this.#cdpMessagesLoggingBatchingFn[destination] = () => {
if (timeout == null) {
timeout = (0, _timers.setTimeout)(() => {
debug(
"%s %s CDP messages received in the last %ss.",
getCDPLogPrefix(destination),
String(batchingCounters[destination]).padStart(5),
CDP_MESSAGES_BATCH_DEBUGGING_THROTTLE_MS / 1000
);
batchingCounters[destination] = 0;
timeout = null;
}, CDP_MESSAGES_BATCH_DEBUGGING_THROTTLE_MS).unref();
}
batchingCounters[destination]++;
};
});
}
log(destination, message) {
if (debugCDPMessages.enabled) {
debugCDPMessages("%s message: %s", getCDPLogPrefix(destination), message);
}
if (debug.enabled) {
this.#cdpMessagesLoggingBatchingFn[destination]();
}
}
}
exports.default = CDPMessagesLogging;