esm: refactor to use more primordials

lib/internal/modules/esm/create_dynamic_module.js

@@ -5,7 +5,7 @@ const {
   ArrayPrototypeMap,
   JSONStringify,
   ObjectCreate,
-  Set,
+  SafeSet,
 } = primordials;
 
 let debug = require('internal/util/debuglog').debuglog('esm', (fn) => {
@@ -38,7 +38,7 @@ import.meta.done();
   const { ModuleWrap, callbackMap } = internalBinding('module_wrap');
   const m = new ModuleWrap(`${url}`, undefined, source, 0, 0);
 
-  const readyfns = new Set();
+  const readyfns = new SafeSet();
   const reflect = {
     exports: ObjectCreate(null),
     onReady: (cb) => { readyfns.add(cb); },

lib/internal/modules/esm/get_format.js

@@ -1,5 +1,8 @@
 'use strict';
-const { StringPrototypeStartsWith } = primordials;
+const {
+  RegExpPrototypeExec,
+  StringPrototypeStartsWith,
+} = primordials;
 const { extname } = require('path');
 const { getOptionValue } = require('internal/options');
 
@@ -39,7 +42,10 @@ function defaultGetFormat(url, context, defaultGetFormatUnused) {
   }
   const parsed = new URL(url);
   if (parsed.protocol === 'data:') {
-    const [ , mime ] = /^([^/]+\/[^;,]+)(?:[^,]*?)(;base64)?,/.exec(parsed.pathname) || [ null, null, null ];
+    const [ , mime ] = RegExpPrototypeExec(
+      /^([^/]+\/[^;,]+)(?:[^,]*?)(;base64)?,/,
+      parsed.pathname,
+    ) || [ null, null, null ];
     const format = ({
       '__proto__': null,
       'text/javascript': 'module',

lib/internal/modules/esm/get_source.js

@@ -1,5 +1,8 @@
 'use strict';
 
+const {
+  RegExpPrototypeExec,
+} = primordials;
 const { getOptionValue } = require('internal/options');
 // Do not eagerly grab .manifest, it may be in TDZ
 const policy = getOptionValue('--experimental-policy') ?
@@ -8,14 +11,13 @@ const policy = getOptionValue('--experimental-policy') ?
 
 const { Buffer } = require('buffer');
 
-const fs = require('fs');
-const { URL } = require('url');
-const { promisify } = require('internal/util');
+const fs = require('internal/fs/promises').exports;
+const { URL } = require('internal/url');
 const {
   ERR_INVALID_URL,
   ERR_INVALID_URL_SCHEME,
 } = require('internal/errors').codes;
-const readFileAsync = promisify(fs.readFile);
+const readFileAsync = fs.readFile;
 
 const DATA_URL_PATTERN = /^[^/]+\/[^,;]+(?:[^,]*?)(;base64)?,([\s\S]*)$/;
 
@@ -25,7 +27,7 @@ async function defaultGetSource(url, { format } = {}, defaultGetSource) {
   if (parsed.protocol === 'file:') {
     source = await readFileAsync(parsed);
   } else if (parsed.protocol === 'data:') {
-    const match = DATA_URL_PATTERN.exec(parsed.pathname);
+    const match = RegExpPrototypeExec(DATA_URL_PATTERN, parsed.pathname);
     if (!match) {
       throw new ERR_INVALID_URL(url);
     }

lib/internal/modules/esm/loader.js

@@ -7,6 +7,7 @@ const {
   FunctionPrototypeBind,
   ObjectSetPrototypeOf,
   SafeWeakMap,
+  StringPrototypeStartsWith,
 } = primordials;
 
 const {
@@ -126,8 +127,8 @@ class Loader {
     }
 
     if (this._resolve === defaultResolve &&
-      !url.startsWith('file:') &&
-      !url.startsWith('data:')
+      !StringPrototypeStartsWith(url, 'file:') &&
+      !StringPrototypeStartsWith(url, 'data:')
     ) {
       throw new ERR_INVALID_RETURN_PROPERTY(
         'file: or data: url', 'loader resolve', 'url', url

lib/internal/modules/esm/module_job.js

@@ -2,10 +2,15 @@
 
 const {
   ArrayPrototypeJoin,
+  ArrayPrototypeMap,
+  ArrayPrototypePush,
+  FunctionPrototype,
   ObjectSetPrototypeOf,
   PromiseAll,
+  PromiseResolve,
+  PromisePrototypeCatch,
+  ReflectApply,
   SafeSet,
-  SafePromise,
   StringPrototypeIncludes,
   StringPrototypeMatch,
   StringPrototypeReplace,
@@ -16,9 +21,9 @@ const { ModuleWrap } = internalBinding('module_wrap');
 
 const { decorateErrorStack } = require('internal/util');
 const assert = require('internal/assert');
-const resolvedPromise = SafePromise.resolve();
+const resolvedPromise = PromiseResolve();
 
-function noop() {}
+const noop = FunctionPrototype;
 
 let hasPausedEntry = false;
 
@@ -35,7 +40,7 @@ class ModuleJob {
     this.module = undefined;
     // Expose the promise to the ModuleWrap directly for linking below.
     // `this.module` is also filled in below.
-    this.modulePromise = moduleProvider.call(loader, url, isMain);
+    this.modulePromise = ReflectApply(moduleProvider, loader, [url, isMain]);
 
     // Wait for the ModuleWrap instance being linked with all dependencies.
     const link = async () => {
@@ -49,21 +54,21 @@ class ModuleJob {
       const dependencyJobs = [];
       const promises = this.module.link(async (specifier) => {
         const jobPromise = this.loader.getModuleJob(specifier, url);
-        dependencyJobs.push(jobPromise);
+        ArrayPrototypePush(dependencyJobs, jobPromise);
         const job = await jobPromise;
         return job.modulePromise;
       });
 
       if (promises !== undefined)
-        await SafePromise.all(promises);
+        await PromiseAll(promises);
 
-      return SafePromise.all(dependencyJobs);
+      return PromiseAll(dependencyJobs);
     };
     // Promise for the list of all dependencyJobs.
     this.linked = link();
     // This promise is awaited later anyway, so silence
     // 'unhandled rejection' warnings.
-    this.linked.catch(noop);
+    PromisePrototypeCatch(this.linked, noop);
 
     // instantiated == deep dependency jobs wrappers are instantiated,
     // and module wrapper is instantiated.
@@ -85,7 +90,8 @@ class ModuleJob {
       }
       jobsInGraph.add(moduleJob);
       const dependencyJobs = await moduleJob.linked;
-      return PromiseAll(dependencyJobs.map(addJobsToDependencyGraph));
+      return PromiseAll(
+        ArrayPrototypeMap(dependencyJobs, addJobsToDependencyGraph));
     };
     await addJobsToDependencyGraph(this);
 

lib/internal/modules/esm/resolve.js

@@ -880,7 +880,8 @@ function defaultResolve(specifier, context = {}, defaultResolveUnused) {
       [internalFS.realpathCacheKey]: realpathCache
     });
     const old = url;
-    url = pathToFileURL(real + (urlPath.endsWith(sep) ? '/' : ''));
+    url = pathToFileURL(
+      real + (StringPrototypeEndsWith(urlPath, sep) ? '/' : ''));
     url.search = old.search;
     url.hash = old.hash;
   }

lib/internal/modules/esm/translators.js

@@ -3,6 +3,7 @@
 /* global WebAssembly */
 
 const {
+  ArrayPrototypeMap,
   Boolean,
   JSONParse,
   ObjectGetPrototypeOf,
@@ -14,6 +15,7 @@ const {
   SafeMap,
   SafeSet,
   StringPrototypeReplace,
+  StringPrototypeSlice,
   StringPrototypeSplit,
   StringPrototypeStartsWith,
   SyntaxErrorPrototype,
@@ -277,9 +279,9 @@ function cjsPreparseModuleExports(filename) {
 translators.set('builtin', async function builtinStrategy(url) {
   debug(`Translating BuiltinModule ${url}`);
   // Slice 'node:' scheme
-  const id = url.slice(5);
+  const id = StringPrototypeSlice(url, 5);
   const module = loadNativeModule(id, url, true);
-  if (!url.startsWith('node:') || !module) {
+  if (!StringPrototypeStartsWith(url, 'node:') || !module) {
     throw new ERR_UNKNOWN_BUILTIN_MODULE(url);
   }
   debug(`Loading BuiltinModule ${url}`);
@@ -291,7 +293,8 @@ translators.set('json', async function jsonStrategy(url) {
   emitExperimentalWarning('Importing JSON modules');
   debug(`Translating JSONModule ${url}`);
   debug(`Loading JSONModule ${url}`);
-  const pathname = url.startsWith('file:') ? fileURLToPath(url) : null;
+  const pathname = StringPrototypeStartsWith(url, 'file:') ?
+    fileURLToPath(url) : null;
   let modulePath;
   let module;
   if (pathname) {
@@ -365,8 +368,11 @@ translators.set('wasm', async function(url) {
   }
 
   const imports =
-      WebAssembly.Module.imports(compiled).map(({ module }) => module);
-  const exports = WebAssembly.Module.exports(compiled).map(({ name }) => name);
+      ArrayPrototypeMap(WebAssembly.Module.imports(compiled),
+                        ({ module }) => module);
+  const exports =
+    ArrayPrototypeMap(WebAssembly.Module.exports(compiled),
+                      ({ name }) => name);
 
   return createDynamicModule(imports, exports, url, (reflect) => {
     const { exports } = new WebAssembly.Instance(compiled, reflect.imports);

test/parallel/test-bootstrap-modules.js

@@ -49,6 +49,8 @@ const expectedModules = new Set([
   'NativeModule internal/fixed_queue',
   'NativeModule internal/fs/dir',
   'NativeModule internal/fs/utils',
+  'NativeModule internal/fs/promises',
+  'NativeModule internal/fs/rimraf',
   'NativeModule internal/idna',
   'NativeModule internal/linkedlist',
   'NativeModule internal/modules/run_main',