lib: rename js source to lower snake_case

This commit renames all JavaScript source files in lib to lower
snake_case.

PR-URL: https://github.com/nodejs/node/pull/19556
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>

22 files changed, 36 insertions, 32 deletions

diff --git a/lib/_stream_readable.js b/lib/_stream_readable.js
index 0b6cf10aac..9f79a07a6f 100644
--- a/lib/_stream_readable.js
+++ b/lib/_stream_readable.js
@@ -29,7 +29,7 @@ const Stream = require('stream');
 const { Buffer } = require('buffer');
 const util = require('util');
 const debug = util.debuglog('stream');
-const BufferList = require('internal/streams/BufferList');
+const BufferList = require('internal/streams/buffer_list');
 const destroyImpl = require('internal/streams/destroy');
 const { getHighWaterMark } = require('internal/streams/state');
 const {
diff --git a/lib/internal/modules/cjs/loader.js b/lib/internal/modules/cjs/loader.js
index 470cf741e1..6fb14c6d10 100644
--- a/lib/internal/modules/cjs/loader.js
+++ b/lib/internal/modules/cjs/loader.js
@@ -54,8 +54,9 @@ module.exports = Module;
 
 // these are below module.exports for the circular reference
 const asyncESM = require('internal/process/esm_loader');
-const ModuleJob = require('internal/modules/esm/ModuleJob');
-const createDynamicModule = require('internal/modules/esm/CreateDynamicModule');
+const ModuleJob = require('internal/modules/esm/module_job');
+const createDynamicModule = require(
+  'internal/modules/esm/create_dynamic_module');
 const {
   CHAR_UPPERCASE_A,
   CHAR_LOWERCASE_A,
diff --git a/lib/internal/modules/esm/CreateDynamicModule.js b/lib/internal/modules/esm/create_dynamic_module.js
index 7e9777af51..7e9777af51 100644
--- a/lib/internal/modules/esm/CreateDynamicModule.js
+++ b/lib/internal/modules/esm/create_dynamic_module.js
diff --git a/lib/internal/modules/esm/DefaultResolve.js b/lib/internal/modules/esm/default_resolve.js
index 00461e7df1..00461e7df1 100644
--- a/lib/internal/modules/esm/DefaultResolve.js
+++ b/lib/internal/modules/esm/default_resolve.js
diff --git a/lib/internal/modules/esm/Loader.js b/lib/internal/modules/esm/loader.js
index e10296cce2..18b0827eee 100644
--- a/lib/internal/modules/esm/Loader.js
+++ b/lib/internal/modules/esm/loader.js
@@ -6,11 +6,12 @@ const {
   ERR_MISSING_DYNAMIC_INTSTANTIATE_HOOK,
   ERR_UNKNOWN_MODULE_FORMAT
 } = require('internal/errors').codes;
-const ModuleMap = require('internal/modules/esm/ModuleMap');
-const ModuleJob = require('internal/modules/esm/ModuleJob');
-const defaultResolve = require('internal/modules/esm/DefaultResolve');
-const createDynamicModule = require('internal/modules/esm/CreateDynamicModule');
-const translators = require('internal/modules/esm/Translators');
+const ModuleMap = require('internal/modules/esm/module_map');
+const ModuleJob = require('internal/modules/esm/module_job');
+const defaultResolve = require('internal/modules/esm/default_resolve');
+const createDynamicModule = require(
+  'internal/modules/esm/create_dynamic_module');
+const translators = require('internal/modules/esm/translators');
 
 const FunctionBind = Function.call.bind(Function.prototype.bind);
 
diff --git a/lib/internal/modules/esm/ModuleJob.js b/lib/internal/modules/esm/module_job.js
index d948252829..d948252829 100644
--- a/lib/internal/modules/esm/ModuleJob.js
+++ b/lib/internal/modules/esm/module_job.js
diff --git a/lib/internal/modules/esm/ModuleMap.js b/lib/internal/modules/esm/module_map.js
index 985d24dc8d..f4786f8e9e 100644
--- a/lib/internal/modules/esm/ModuleMap.js
+++ b/lib/internal/modules/esm/module_map.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const ModuleJob = require('internal/modules/esm/ModuleJob');
+const ModuleJob = require('internal/modules/esm/module_job');
 const { SafeMap } = require('internal/safe_globals');
 const debug = require('util').debuglog('esm');
 const { ERR_INVALID_ARG_TYPE } = require('internal/errors').codes;
diff --git a/lib/internal/modules/esm/Translators.js b/lib/internal/modules/esm/translators.js
index 2928115be5..d181647c45 100644
--- a/lib/internal/modules/esm/Translators.js
+++ b/lib/internal/modules/esm/translators.js
@@ -8,7 +8,8 @@ const {
 } = require('internal/modules/cjs/helpers');
 const CJSModule = require('internal/modules/cjs/loader');
 const internalURLModule = require('internal/url');
-const createDynamicModule = require('internal/modules/esm/CreateDynamicModule');
+const createDynamicModule = require(
+  'internal/modules/esm/create_dynamic_module');
 const fs = require('fs');
 const { _makeLong } = require('path');
 const { SafeMap } = require('internal/safe_globals');
diff --git a/lib/internal/process/esm_loader.js b/lib/internal/process/esm_loader.js
index e45c0faa18..bcb6501af6 100644
--- a/lib/internal/process/esm_loader.js
+++ b/lib/internal/process/esm_loader.js
@@ -7,7 +7,7 @@ const {
 } = internalBinding('module_wrap');
 
 const { getURLFromFilePath } = require('internal/url');
-const Loader = require('internal/modules/esm/Loader');
+const Loader = require('internal/modules/esm/loader');
 const path = require('path');
 const { URL } = require('url');
 
diff --git a/lib/internal/streams/BufferList.js b/lib/internal/streams/buffer_list.js
index a72bf37a31..a72bf37a31 100644
--- a/lib/internal/streams/BufferList.js
+++ b/lib/internal/streams/buffer_list.js
diff --git a/lib/internal/vm/Module.js b/lib/internal/vm/module.js
index 48d591f3bf..48d591f3bf 100644
--- a/lib/internal/vm/Module.js
+++ b/lib/internal/vm/module.js
diff --git a/lib/vm.js b/lib/vm.js
index ca7b6f3396..47eb1b851f 100644
--- a/lib/vm.js
+++ b/lib/vm.js
@@ -240,4 +240,4 @@ module.exports = {
 };
 
 if (process.binding('config').experimentalVMModules)
-  module.exports.Module = require('internal/vm/Module').Module;
+  module.exports.Module = require('internal/vm/module').Module;
diff --git a/node.gyp b/node.gyp
index 97dd639bc5..384439b114 100644
--- a/node.gyp
+++ b/node.gyp
@@ -106,12 +106,12 @@
       'lib/internal/linkedlist.js',
       'lib/internal/modules/cjs/helpers.js',
       'lib/internal/modules/cjs/loader.js',
-      'lib/internal/modules/esm/Loader.js',
-      'lib/internal/modules/esm/CreateDynamicModule.js',
-      'lib/internal/modules/esm/DefaultResolve.js',
-      'lib/internal/modules/esm/ModuleJob.js',
-      'lib/internal/modules/esm/ModuleMap.js',
-      'lib/internal/modules/esm/Translators.js',
+      'lib/internal/modules/esm/loader.js',
+      'lib/internal/modules/esm/create_dynamic_module.js',
+      'lib/internal/modules/esm/default_resolve.js',
+      'lib/internal/modules/esm/module_job.js',
+      'lib/internal/modules/esm/module_map.js',
+      'lib/internal/modules/esm/translators.js',
       'lib/internal/safe_globals.js',
       'lib/internal/net.js',
       'lib/internal/os.js',
@@ -143,11 +143,11 @@
       'lib/internal/v8.js',
       'lib/internal/v8_prof_polyfill.js',
       'lib/internal/v8_prof_processor.js',
-      'lib/internal/vm/Module.js',
       'lib/internal/stream_base_commons.js',
+      'lib/internal/vm/module.js',
       'lib/internal/streams/lazy_transform.js',
       'lib/internal/streams/async_iterator.js',
-      'lib/internal/streams/BufferList.js',
+      'lib/internal/streams/buffer_list.js',
       'lib/internal/streams/duplex_base.js',
       'lib/internal/streams/duplexpair.js',
       'lib/internal/streams/legacy.js',
diff --git a/test/es-module/test-esm-loader-modulemap.js b/test/es-module/test-esm-loader-modulemap.js
index bf02bfcf66..946d54ffaa 100644
--- a/test/es-module/test-esm-loader-modulemap.js
+++ b/test/es-module/test-esm-loader-modulemap.js
@@ -7,10 +7,11 @@
 const common = require('../common');
 
 const { URL } = require('url');
-const Loader = require('internal/modules/esm/Loader');
-const ModuleMap = require('internal/modules/esm/ModuleMap');
-const ModuleJob = require('internal/modules/esm/ModuleJob');
-const createDynamicModule = require('internal/modules/esm/CreateDynamicModule');
+const Loader = require('internal/modules/esm/loader');
+const ModuleMap = require('internal/modules/esm/module_map');
+const ModuleJob = require('internal/modules/esm/module_job');
+const createDynamicModule = require(
+  'internal/modules/esm/create_dynamic_module');
 
 const stubModuleUrl = new URL('file://tmp/test');
 const stubModule = createDynamicModule(['default'], stubModuleUrl);
diff --git a/test/es-module/test-esm-loader-search.js b/test/es-module/test-esm-loader-search.js
index 0f4591a4e3..0ca8990cb7 100644
--- a/test/es-module/test-esm-loader-search.js
+++ b/test/es-module/test-esm-loader-search.js
@@ -5,7 +5,7 @@
 
 const common = require('../common');
 
-const { search } = require('internal/modules/esm/DefaultResolve');
+const { search } = require('internal/modules/esm/default_resolve');
 
 common.expectsError(
   () => search('target', undefined),
diff --git a/test/message/esm_display_syntax_error.out b/test/message/esm_display_syntax_error.out
index 4564fe06d5..ed2e928eb1 100644
--- a/test/message/esm_display_syntax_error.out
+++ b/test/message/esm_display_syntax_error.out
@@ -3,4 +3,4 @@ file:///*/test/message/esm_display_syntax_error.mjs:3
 await async () => 0;
 ^^^^^
 SyntaxError: Unexpected reserved word
-    at translators.set (internal/modules/esm/Translators.js:*:*)
+    at translators.set (internal/modules/esm/translators.js:*:*)
diff --git a/test/message/esm_display_syntax_error_import.out b/test/message/esm_display_syntax_error_import.out
index 02050d361e..31ee2b6f4b 100644
--- a/test/message/esm_display_syntax_error_import.out
+++ b/test/message/esm_display_syntax_error_import.out
@@ -3,4 +3,4 @@ file:///*/test/message/esm_display_syntax_error_import.mjs:6
   notfound
   ^^^^^^^^
 SyntaxError: The requested module '../fixtures/es-module-loaders/module-named-exports' does not provide an export named 'notfound'
-    at ModuleJob._instantiate (internal/modules/esm/ModuleJob.js:*:*)
+    at ModuleJob._instantiate (internal/modules/esm/module_job.js:*:*)
diff --git a/test/message/esm_display_syntax_error_import_module.out b/test/message/esm_display_syntax_error_import_module.out
index ae0bf331de..b067a77942 100644
--- a/test/message/esm_display_syntax_error_import_module.out
+++ b/test/message/esm_display_syntax_error_import_module.out
@@ -3,4 +3,4 @@ file:///*/test/fixtures/es-module-loaders/syntax-error-import.mjs:1
 import { foo, notfound } from './module-named-exports';
               ^^^^^^^^
 SyntaxError: The requested module './module-named-exports' does not provide an export named 'notfound'
-    at ModuleJob._instantiate (internal/modules/esm/ModuleJob.js:*:*)
+    at ModuleJob._instantiate (internal/modules/esm/module_job.js:*:*)
diff --git a/test/message/esm_display_syntax_error_module.out b/test/message/esm_display_syntax_error_module.out
index fc0581c225..e636abad9e 100644
--- a/test/message/esm_display_syntax_error_module.out
+++ b/test/message/esm_display_syntax_error_module.out
@@ -3,4 +3,4 @@ file:///*/test/fixtures/es-module-loaders/syntax-error.mjs:2
 await async () => 0;
 ^^^^^
 SyntaxError: Unexpected reserved word
-    at translators.set (internal/modules/esm/Translators.js:*:*)
+    at translators.set (internal/modules/esm/translators.js:*:*)
diff --git a/test/parallel/test-internal-module-map-asserts.js b/test/parallel/test-internal-module-map-asserts.js
index 330f04cfd9..4563fc605e 100644
--- a/test/parallel/test-internal-module-map-asserts.js
+++ b/test/parallel/test-internal-module-map-asserts.js
@@ -3,7 +3,7 @@
 
 const common = require('../common');
 const assert = require('assert');
-const ModuleMap = require('internal/modules/esm/ModuleMap');
+const ModuleMap = require('internal/modules/esm/module_map');
 
 // ModuleMap.get, ModuleMap.has and ModuleMap.set should only accept string
 // values as url argument.
diff --git a/test/parallel/test-stream-buffer-list.js b/test/parallel/test-stream-buffer-list.js
index c151154afa..ef9b1fef6d 100644
--- a/test/parallel/test-stream-buffer-list.js
+++ b/test/parallel/test-stream-buffer-list.js
@@ -2,7 +2,7 @@
 'use strict';
 require('../common');
 const assert = require('assert');
-const BufferList = require('internal/streams/BufferList');
+const BufferList = require('internal/streams/buffer_list');
 const util = require('util');
 
 // Test empty buffer list.
diff --git a/test/parallel/test-stream2-readable-from-list.js b/test/parallel/test-stream2-readable-from-list.js
index 965f962638..f812f75e7c 100644
--- a/test/parallel/test-stream2-readable-from-list.js
+++ b/test/parallel/test-stream2-readable-from-list.js
@@ -24,7 +24,7 @@
 require('../common');
 const assert = require('assert');
 const fromList = require('_stream_readable')._fromList;
-const BufferList = require('internal/streams/BufferList');
+const BufferList = require('internal/streams/buffer_list');
 
 function bufferListFromArray(arr) {
   const bl = new BufferList();