vm: use kEmptyObject

PR-URL: #43159
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: Antoine du Hamel <[email protected]>

Author: LiviaMedeiros

lib/internal/vm/module.js

@@ -24,9 +24,10 @@ const {
   isArrayBufferView,
 } = require('internal/util/types');
 const {
-  getConstructorOf,
   customInspectSymbol,
   emitExperimentalWarning,
+  getConstructorOf,
+  kEmptyObject,
 } = require('internal/util');
 const {
   ERR_INVALID_ARG_TYPE,
@@ -199,7 +200,7 @@ class Module {
     this[kWrap].instantiate();
   }
 
-  async evaluate(options = {}) {
+  async evaluate(options = kEmptyObject) {
     if (this[kWrap] === undefined) {
       throw new ERR_VM_MODULE_NOT_MODULE();
     }
@@ -258,7 +259,7 @@ class SourceTextModule extends Module {
   #error = kNoError;
   #statusOverride;
 
-  constructor(sourceText, options = {}) {
+  constructor(sourceText, options = kEmptyObject) {
     validateString(sourceText, 'sourceText');
     validateObject(options, 'options');
 
@@ -387,7 +388,7 @@ class SourceTextModule extends Module {
 }
 
 class SyntheticModule extends Module {
-  constructor(exportNames, evaluateCallback, options = {}) {
+  constructor(exportNames, evaluateCallback, options = kEmptyObject) {
     if (!ArrayIsArray(exportNames) ||
       ArrayPrototypeSome(exportNames, (e) => typeof e !== 'string')) {
       throw new ERR_INVALID_ARG_TYPE('exportNames',

lib/vm.js

@@ -57,13 +57,14 @@ const {
   validateUint32,
 } = require('internal/validators');
 const {
-  kVmBreakFirstLineSymbol,
   emitExperimentalWarning,
+  kEmptyObject,
+  kVmBreakFirstLineSymbol,
 } = require('internal/util');
 const kParsingContext = Symbol('script parsing context');
 
 class Script extends ContextifyScript {
-  constructor(code, options = {}) {
+  constructor(code, options = kEmptyObject) {
     code = `${code}`;
     if (typeof options === 'string') {
       options = { filename: options };
@@ -152,7 +153,7 @@ function validateContext(contextifiedObject) {
   }
 }
 
-function getRunInContextArgs(options = {}) {
+function getRunInContextArgs(options = kEmptyObject) {
   validateObject(options, 'options');
 
   let timeout = options.timeout;
@@ -212,7 +213,7 @@ function isContext(object) {
 }
 
 let defaultContextNameIndex = 1;
-function createContext(contextObject = {}, options = {}) {
+function createContext(contextObject = {}, options = kEmptyObject) {
   if (isContext(contextObject)) {
     return contextObject;
   }
@@ -305,7 +306,7 @@ function runInThisContext(code, options) {
   return createScript(code, options).runInThisContext(options);
 }
 
-function compileFunction(code, params, options = {}) {
+function compileFunction(code, params, options = kEmptyObject) {
   validateString(code, 'code');
   if (params !== undefined) {
     validateArray(params, 'params');
@@ -395,7 +396,7 @@ const measureMemoryExecutions = {
   eager: constants.measureMemory.execution.EAGER,
 };
 
-function measureMemory(options = {}) {
+function measureMemory(options = kEmptyObject) {
   emitExperimentalWarning('vm.measureMemory');
   validateObject(options, 'options');
   const { mode = 'summary', execution = 'default' } = options;