Make chunk param of ReadableStreamDefaultController.enqueue non-optional (#2425)

ikeyan · saschanaz · web-flow · commit 1d230d1fe6df · 2026-02-22T13:46:56.000Z
Co-authored-by: saschanaz &lt;saschanaz@users.noreply.github.com&gt;
diff --git a/baselines/audioworklet.generated.d.ts b/baselines/audioworklet.generated.d.ts
@@ -1031,7 +1031,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
@@ -30350,7 +30350,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/serviceworker.generated.d.ts b/baselines/serviceworker.generated.d.ts
@@ -8153,7 +8153,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/sharedworker.generated.d.ts b/baselines/sharedworker.generated.d.ts
@@ -7736,7 +7736,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.5/audioworklet.generated.d.ts b/baselines/ts5.5/audioworklet.generated.d.ts
@@ -1028,7 +1028,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.5/dom.generated.d.ts b/baselines/ts5.5/dom.generated.d.ts
@@ -30326,7 +30326,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.5/serviceworker.generated.d.ts b/baselines/ts5.5/serviceworker.generated.d.ts
@@ -8150,7 +8150,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.5/sharedworker.generated.d.ts b/baselines/ts5.5/sharedworker.generated.d.ts
@@ -7733,7 +7733,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.5/webworker.generated.d.ts b/baselines/ts5.5/webworker.generated.d.ts
@@ -9273,7 +9273,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.6/audioworklet.generated.d.ts b/baselines/ts5.6/audioworklet.generated.d.ts
@@ -1028,7 +1028,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.6/dom.generated.d.ts b/baselines/ts5.6/dom.generated.d.ts
@@ -30347,7 +30347,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.6/serviceworker.generated.d.ts b/baselines/ts5.6/serviceworker.generated.d.ts
@@ -8150,7 +8150,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.6/sharedworker.generated.d.ts b/baselines/ts5.6/sharedworker.generated.d.ts
@@ -7733,7 +7733,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.6/webworker.generated.d.ts b/baselines/ts5.6/webworker.generated.d.ts
@@ -9273,7 +9273,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.9/audioworklet.generated.d.ts b/baselines/ts5.9/audioworklet.generated.d.ts
@@ -1028,7 +1028,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.9/dom.generated.d.ts b/baselines/ts5.9/dom.generated.d.ts
@@ -30347,7 +30347,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.9/serviceworker.generated.d.ts b/baselines/ts5.9/serviceworker.generated.d.ts
@@ -8150,7 +8150,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.9/sharedworker.generated.d.ts b/baselines/ts5.9/sharedworker.generated.d.ts
@@ -7733,7 +7733,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/ts5.9/webworker.generated.d.ts b/baselines/ts5.9/webworker.generated.d.ts
@@ -9273,7 +9273,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/baselines/webworker.generated.d.ts b/baselines/webworker.generated.d.ts
@@ -9276,7 +9276,7 @@ interface ReadableStreamDefaultController<R = any> {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)
      */
-    enqueue(chunk?: R): void;
+    enqueue(chunk: R): void;
     /**
      * The **`error()`** method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
      *
diff --git a/inputfiles/overridingTypes.jsonc b/inputfiles/overridingTypes.jsonc
@@ -2229,6 +2229,7 @@
                                     "param": [
                                         {
                                             "name": "chunk",
+                                            "optional": false,
                                             "overrideType": "R"
                                         }
                                     ]

Original file line number	Diff line number	Diff line change
`@@ -1031,7 +1031,7 @@ interface ReadableStreamDefaultController<R = any> {`
`1031`	`1031`	`*`
`1032`	`1032`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)`
`1033`	`1033`	`*/`
`1034`		`- enqueue(chunk?: R): void;`
	`1034`	`+ enqueue(chunk: R): void;`
`1035`	`1035`	`/**`
`1036`	`1036`	* The `error()` method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
`1037`	`1037`	`*`
Original file line number	Diff line number	Diff line change
`@@ -30350,7 +30350,7 @@ interface ReadableStreamDefaultController<R = any> {`
`30350`	`30350`	`*`
`30351`	`30351`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)`
`30352`	`30352`	`*/`
`30353`		`- enqueue(chunk?: R): void;`
	`30353`	`+ enqueue(chunk: R): void;`
`30354`	`30354`	`/**`
`30355`	`30355`	* The `error()` method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
`30356`	`30356`	`*`
Original file line number	Diff line number	Diff line change
`@@ -8153,7 +8153,7 @@ interface ReadableStreamDefaultController<R = any> {`
`8153`	`8153`	`*`
`8154`	`8154`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)`
`8155`	`8155`	`*/`
`8156`		`- enqueue(chunk?: R): void;`
	`8156`	`+ enqueue(chunk: R): void;`
`8157`	`8157`	`/**`
`8158`	`8158`	* The `error()` method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
`8159`	`8159`	`*`
Original file line number	Diff line number	Diff line change
`@@ -7736,7 +7736,7 @@ interface ReadableStreamDefaultController<R = any> {`
`7736`	`7736`	`*`
`7737`	`7737`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)`
`7738`	`7738`	`*/`
`7739`		`- enqueue(chunk?: R): void;`
	`7739`	`+ enqueue(chunk: R): void;`
`7740`	`7740`	`/**`
`7741`	`7741`	* The `error()` method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
`7742`	`7742`	`*`
Original file line number	Diff line number	Diff line change
`@@ -1028,7 +1028,7 @@ interface ReadableStreamDefaultController<R = any> {`
`1028`	`1028`	`*`
`1029`	`1029`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)`
`1030`	`1030`	`*/`
`1031`		`- enqueue(chunk?: R): void;`
	`1031`	`+ enqueue(chunk: R): void;`
`1032`	`1032`	`/**`
`1033`	`1033`	* The `error()` method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
`1034`	`1034`	`*`
Original file line number	Diff line number	Diff line change
`@@ -30326,7 +30326,7 @@ interface ReadableStreamDefaultController<R = any> {`
`30326`	`30326`	`*`
`30327`	`30327`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)`
`30328`	`30328`	`*/`
`30329`		`- enqueue(chunk?: R): void;`
	`30329`	`+ enqueue(chunk: R): void;`
`30330`	`30330`	`/**`
`30331`	`30331`	* The `error()` method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
`30332`	`30332`	`*`
Original file line number	Diff line number	Diff line change
`@@ -8150,7 +8150,7 @@ interface ReadableStreamDefaultController<R = any> {`
`8150`	`8150`	`*`
`8151`	`8151`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)`
`8152`	`8152`	`*/`
`8153`		`- enqueue(chunk?: R): void;`
	`8153`	`+ enqueue(chunk: R): void;`
`8154`	`8154`	`/**`
`8155`	`8155`	* The `error()` method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
`8156`	`8156`	`*`
Original file line number	Diff line number	Diff line change
`@@ -7733,7 +7733,7 @@ interface ReadableStreamDefaultController<R = any> {`
`7733`	`7733`	`*`
`7734`	`7734`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)`
`7735`	`7735`	`*/`
`7736`		`- enqueue(chunk?: R): void;`
	`7736`	`+ enqueue(chunk: R): void;`
`7737`	`7737`	`/**`
`7738`	`7738`	* The `error()` method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
`7739`	`7739`	`*`
Original file line number	Diff line number	Diff line change
`@@ -9273,7 +9273,7 @@ interface ReadableStreamDefaultController<R = any> {`
`9273`	`9273`	`*`
`9274`	`9274`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/ReadableStreamDefaultController/enqueue)`
`9275`	`9275`	`*/`
`9276`		`- enqueue(chunk?: R): void;`
	`9276`	`+ enqueue(chunk: R): void;`
`9277`	`9277`	`/**`
`9278`	`9278`	* The `error()` method of the ReadableStreamDefaultController interface causes any future interactions with the associated stream to error.
`9279`	`9279`	`*`