From 3e4524656d376ec79de630e5cd300f8e8094f6f0 Mon Sep 17 00:00:00 2001
From: snwy <snwy@snwy.me>
Date: Tue, 5 Nov 2024 16:21:33 -0800
Subject: [PATCH] constructors part 2 electric boogaloo

---
 src/js/internal/streams/duplex.js      | 2 ++
 src/js/internal/streams/legacy.js      | 1 +
 src/js/internal/streams/passthrough.js | 2 ++
 src/js/internal/streams/readable.js    | 1 +
 src/js/internal/streams/transform.js   | 2 ++
 src/js/internal/streams/writable.js    | 1 +
 6 files changed, 9 insertions(+)

diff --git a/src/js/internal/streams/duplex.js b/src/js/internal/streams/duplex.js
index 2b36ffbca0..acf20f1bca 100644
--- a/src/js/internal/streams/duplex.js
+++ b/src/js/internal/streams/duplex.js
@@ -40,6 +40,8 @@ const { kOnConstructed } = require("internal/streams/utils");
 function Duplex(options) {
   if (!(this instanceof Duplex)) return new Duplex(options);
 
+  this.constructor = Duplex;
+
   this._events ??= {
     close: undefined,
     error: undefined,
diff --git a/src/js/internal/streams/legacy.js b/src/js/internal/streams/legacy.js
index 1f6354e89a..ff06d6a2de 100644
--- a/src/js/internal/streams/legacy.js
+++ b/src/js/internal/streams/legacy.js
@@ -8,6 +8,7 @@ const EE = require("node:events");
 
 function Stream(opts) {
   EE.$call(this, opts);
+  this.constructor = Stream;
 }
 Stream.constructor = Stream;
 
diff --git a/src/js/internal/streams/passthrough.js b/src/js/internal/streams/passthrough.js
index 14cda38c33..ae20842184 100644
--- a/src/js/internal/streams/passthrough.js
+++ b/src/js/internal/streams/passthrough.js
@@ -37,6 +37,8 @@ ObjectSetPrototypeOf(PassThrough, Transform);
 function PassThrough(options) {
   if (!(this instanceof PassThrough)) return new PassThrough(options);
 
+  this.constructor = PassThrough;
+
   Transform.$call(this, options);
 }
 
diff --git a/src/js/internal/streams/readable.js b/src/js/internal/streams/readable.js
index ad4019ed40..181bf3d48f 100644
--- a/src/js/internal/streams/readable.js
+++ b/src/js/internal/streams/readable.js
@@ -311,6 +311,7 @@ ReadableState.prototype[kOnConstructed] = function onConstructed(stream) {
 function Readable(options) {
   if (!(this instanceof Readable)) return new Readable(options);
 
+  this.constructor = Readable;
   this._events ??= {
     close: undefined,
     error: undefined,
diff --git a/src/js/internal/streams/transform.js b/src/js/internal/streams/transform.js
index 2625f681ee..45c3983926 100644
--- a/src/js/internal/streams/transform.js
+++ b/src/js/internal/streams/transform.js
@@ -77,6 +77,8 @@ const kCallback = Symbol("kCallback");
 function Transform(options) {
   if (!(this instanceof Transform)) return new Transform(options);
 
+  this.constructor = Transform;
+
   // TODO (ronag): This should preferably always be
   // applied but would be semver-major. Or even better;
   // make Transform a Readable with the Writable interface.
diff --git a/src/js/internal/streams/writable.js b/src/js/internal/streams/writable.js
index cae2d8f5b6..ffd8b470f6 100644
--- a/src/js/internal/streams/writable.js
+++ b/src/js/internal/streams/writable.js
@@ -388,6 +388,7 @@ WritableState.prototype[kOnConstructed] = function onConstructed(stream) {
 function Writable(options) {
   if (!(this instanceof Writable)) return new Writable(options);
 
+  this.constructor = Writable;
   this._events ??= {
     close: undefined,
     error: undefined,