lib: lazy load necessary loaders

PR-URL: #20567
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com>

Author: BridgeAR

lib/internal/modules/cjs/loader.js

@@ -23,8 +23,6 @@
 
 const{ NativeModule }=require('internal/bootstrap/loaders');
 constutil=require('util');
-const{ decorateErrorStack }=require('internal/util');
-const{ getURLFromFilePath }=require('internal/url');
 constvm=require('vm');
 constassert=require('assert').ok;
 constfs=require('fs');
@@ -53,11 +51,21 @@ const {
 
 module.exports=Module;
 
-// these are below module.exports for the circular reference
-constasyncESM=require('internal/process/esm_loader');
-constModuleJob=require('internal/modules/esm/module_job');
-constcreateDynamicModule=require(
-'internal/modules/esm/create_dynamic_module');
+letasyncESM;
+letModuleJob;
+letcreateDynamicModule;
+letgetURLFromFilePath;
+letdecorateErrorStack;
+
+functionlazyLoadESM(){
+asyncESM=require('internal/process/esm_loader');
+ModuleJob=require('internal/modules/esm/module_job');
+createDynamicModule=require(
+'internal/modules/esm/create_dynamic_module');
+decorateErrorStack=require('internal/util').decorateErrorStack;
+getURLFromFilePath=require('internal/url').getURLFromFilePath;
+}
+
 const{
 CHAR_UPPERCASE_A,
 CHAR_LOWERCASE_A,
@@ -497,6 +505,7 @@ Module._load = function(request, parent, isMain) {
 }
 
 if(experimentalModules&&isMain){
+if(asyncESM===undefined)lazyLoadESM();
 asyncESM.loaderPromise.then((loader)=>{
 returnloader.import(getURLFromFilePath(request).pathname);
 })
@@ -604,6 +613,7 @@ Module.prototype.load = function(filename) {
 this.loaded=true;
 
 if(experimentalModules){
+if(asyncESM===undefined)lazyLoadESM();
 constESMLoader=asyncESM.ESMLoader;
 consturl=getURLFromFilePath(filename);
 consturlString=`${url}`;
@@ -722,6 +732,7 @@ Module._extensions['.node'] = function(module, filename) {
 };
 
 if(experimentalModules){
+if(asyncESM===undefined)lazyLoadESM();
 Module._extensions['.mjs']=function(module,filename){
 thrownewERR_REQUIRE_ESM(filename);
 };
@@ -797,5 +808,5 @@ Module._preloadModules = function(requests) {
 
 Module._initPaths();
 
-// backwards compatibility
+// Backwards compatibility
 Module.Module=Module;