module: use kNodeModulesRE to detect node_modules

This is faster and more consistent with other places using the
regular expression to detect node_modules.

Author: joyeecheung

lib/internal/modules/cjs/loader.js

@@ -124,6 +124,7 @@ const { pathToFileURL, fileURLToPath, isURL } = require('internal/url');
 const {
   pendingDeprecate,
   emitExperimentalWarning,
+  isUnderNodeModules,
   kEmptyObject,
   setOwnProperty,
   getLazy,
@@ -146,7 +147,6 @@ const { safeGetenv } = internalBinding('credentials');
 const {
   getCjsConditions,
   initializeCjsConditions,
-  isUnderNodeModules,
   loadBuiltinModule,
   makeRequireFunction,
   setHasStartedUserCJSExecution,

lib/internal/modules/esm/load.js

@@ -3,7 +3,10 @@
 const {
   RegExpPrototypeExec,
 } = primordials;
-const { kEmptyObject } = require('internal/util');
+const {
+  isUnderNodeModules,
+  kEmptyObject,
+} = require('internal/util');
 
 const { defaultGetFormat } = require('internal/modules/esm/get_format');
 const { validateAttributes, emitImportAssertionWarning } = require('internal/modules/esm/assert');
@@ -14,9 +17,6 @@ const defaultType =
   getOptionValue('--experimental-default-type');
 
 const { Buffer: { from: BufferFrom } } = require('buffer');
-const {
-  isUnderNodeModules,
-} = require('internal/modules/helpers');
 
 const { URL } = require('internal/url');
 const {

lib/internal/modules/helpers.js

@@ -2,7 +2,6 @@
 
 const {
   ArrayPrototypeForEach,
-  ArrayPrototypeIncludes,
   ObjectDefineProperty,
   ObjectFreeze,
   ObjectPrototypeHasOwnProperty,
@@ -11,7 +10,6 @@ const {
   StringPrototypeCharCodeAt,
   StringPrototypeIncludes,
   StringPrototypeSlice,
-  StringPrototypeSplit,
   StringPrototypeStartsWith,
 } = primordials;
 const {
@@ -386,12 +384,6 @@ function stripTypeScriptTypes(source, filename) {
   return `${code}\n\n//# sourceURL=${filename}`;
 }
 
-function isUnderNodeModules(filename) {
-  const resolvedPath = path.resolve(filename);
-  const normalizedPath = path.normalize(resolvedPath);
-  const splitPath = StringPrototypeSplit(normalizedPath, path.sep);
-  return ArrayPrototypeIncludes(splitPath, 'node_modules');
-}
 
 /**
  * Enable on-disk compiled cache for all user modules being complied in the current Node.js instance
@@ -491,7 +483,6 @@ module.exports = {
   getCjsConditions,
   getCompileCacheDir,
   initializeCjsConditions,
-  isUnderNodeModules,
   loadBuiltinModule,
   makeRequireFunction,
   normalizeReferrerURL,

lib/internal/util.js

@@ -481,6 +481,10 @@ function spliceOne(list, index) {
 
 const kNodeModulesRE = /^(?:.*)[\\/]node_modules[\\/]/;
 
+function isUnderNodeModules(filename) {
+  return filename && (RegExpPrototypeExec(kNodeModulesRE, filename) !== null);
+}
+
 let getStructuredStackImpl;
 
 function lazyGetStructuredStack() {
@@ -528,7 +532,7 @@ function isInsideNodeModules() {
       ) {
         continue;
       }
-      return RegExpPrototypeExec(kNodeModulesRE, filename) !== null;
+      return isUnderNodeModules(filename);
     }
   }
   return false;
@@ -908,6 +912,7 @@ module.exports = {
   guessHandleType,
   isError,
   isInsideNodeModules,
+  isUnderNodeModules,
   isMacOS,
   isWindows,
   join,