add experimental logger module support

Author: mertcanaltin

lib/internal/bootstrap/realm.js

@@ -127,11 +127,12 @@ const schemelessBlockList = new SafeSet([
   'sea',
   'sqlite',
   'quic',
+  'logger',
   'test',
   'test/reporters',
 ]);
 // Modules that will only be enabled at run time.
-const experimentalModuleList = new SafeSet(['sqlite', 'quic']);
+const experimentalModuleList = new SafeSet(['sqlite', 'quic', 'logger']);
 
 // Set up process.binding() and process._linkedBinding().
 {

lib/internal/process/pre_execution.js

@@ -115,6 +115,7 @@ function prepareExecution(options) {
   setupNavigator();
   setupWarningHandler();
   setupSQLite();
+  setupLogger();
   setupQuic();
   setupWebStorage();
   setupWebsocket();
@@ -380,6 +381,15 @@ function setupSQLite() {
   BuiltinModule.allowRequireByUsers('sqlite');
 }
 
+function setupLogger() {
+  if (!getOptionValue('--experimental-logger')) {
+    return;
+  }
+
+  const { BuiltinModule } = require('internal/bootstrap/realm');
+  BuiltinModule.allowRequireByUsers('logger');
+}
+
 function initializeConfigFileSupport() {
   if (getOptionValue('--experimental-default-config-file') ||
       getOptionValue('--experimental-config-file')) {

lib/logger.js

@@ -11,7 +11,6 @@ const {
 
 const { isNativeError } = require('internal/util/types');
 
-
 const {
   codes: {
     ERR_INVALID_ARG_TYPE,
@@ -28,7 +27,8 @@ const {
 
 const Utf8Stream = require('internal/streams/fast-utf8-stream');
 const diagnosticsChannel = require('diagnostics_channel');
-const { kEmptyObject } = require('internal/util');
+const { emitExperimentalWarning, kEmptyObject } = require('internal/util');
+emitExperimentalWarning('Logger');
 const stdSerializers = require('internal/logger/serializers');
 
 // Create channels for each log level

src/node_options.cc

@@ -573,6 +573,10 @@ EnvironmentOptionsParser::EnvironmentOptionsParser() {
             &EnvironmentOptions::experimental_sqlite,
             kAllowedInEnvvar,
             true);
+  AddOption("--experimental-logger",
+            "experimental node:logger module",
+            &EnvironmentOptions::experimental_logger,
+            kAllowedInEnvvar);
   AddOption("--experimental-quic",
 #ifndef OPENSSL_NO_QUIC
             "experimental QUIC support",

src/node_options.h

@@ -127,6 +127,7 @@ class EnvironmentOptions : public Options {
   bool experimental_fetch = true;
   bool experimental_websocket = true;
   bool experimental_sqlite = true;
+  bool experimental_logger = false;
   bool webstorage = HAVE_SQLITE;
 #ifndef OPENSSL_NO_QUIC
   bool experimental_quic = false;