-

Bashamega · Bashamega · commit 7f85fedbbc69 · 2026-03-01T10:45:05.000+02:00
diff --git a/baselines/dom.generated.d.ts b/baselines/dom.generated.d.ts
@@ -12378,7 +12378,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/links)
      */
-    readonly links: HTMLCollectionOf<HTMLAnchorElement | HTMLAreaElement>;
+    readonly links: HTMLCollectionOf<HTMLAnchorElement<HTMLAnchorElement, HTMLAreaElement>>;
     /**
      * The read-only **`location`** property of the Document interface returns a Location object, which contains information about the URL of the document and provides methods for changing that URL and loading another URL.
      *
@@ -39734,7 +39734,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/serviceworker.generated.d.ts b/baselines/serviceworker.generated.d.ts
@@ -11062,7 +11062,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/sharedworker.generated.d.ts b/baselines/sharedworker.generated.d.ts
@@ -10599,7 +10599,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.5/dom.generated.d.ts b/baselines/ts5.5/dom.generated.d.ts
@@ -12367,7 +12367,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/links)
      */
-    readonly links: HTMLCollectionOf<HTMLAnchorElement | HTMLAreaElement>;
+    readonly links: HTMLCollectionOf<HTMLAnchorElement<HTMLAnchorElement, HTMLAreaElement>>;
     /**
      * The read-only **`location`** property of the Document interface returns a Location object, which contains information about the URL of the document and provides methods for changing that URL and loading another URL.
      *
@@ -39708,7 +39708,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.5/serviceworker.generated.d.ts b/baselines/ts5.5/serviceworker.generated.d.ts
@@ -11059,7 +11059,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.5/sharedworker.generated.d.ts b/baselines/ts5.5/sharedworker.generated.d.ts
@@ -10596,7 +10596,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.5/webworker.generated.d.ts b/baselines/ts5.5/webworker.generated.d.ts
@@ -12513,7 +12513,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.6/dom.generated.d.ts b/baselines/ts5.6/dom.generated.d.ts
@@ -12375,7 +12375,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/links)
      */
-    readonly links: HTMLCollectionOf<HTMLAnchorElement | HTMLAreaElement>;
+    readonly links: HTMLCollectionOf<HTMLAnchorElement<HTMLAnchorElement, HTMLAreaElement>>;
     /**
      * The read-only **`location`** property of the Document interface returns a Location object, which contains information about the URL of the document and provides methods for changing that URL and loading another URL.
      *
@@ -39731,7 +39731,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.6/serviceworker.generated.d.ts b/baselines/ts5.6/serviceworker.generated.d.ts
@@ -11059,7 +11059,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.6/sharedworker.generated.d.ts b/baselines/ts5.6/sharedworker.generated.d.ts
@@ -10596,7 +10596,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.6/webworker.generated.d.ts b/baselines/ts5.6/webworker.generated.d.ts
@@ -12513,7 +12513,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.9/dom.generated.d.ts b/baselines/ts5.9/dom.generated.d.ts
@@ -12375,7 +12375,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/links)
      */
-    readonly links: HTMLCollectionOf<HTMLAnchorElement | HTMLAreaElement>;
+    readonly links: HTMLCollectionOf<HTMLAnchorElement<HTMLAnchorElement, HTMLAreaElement>>;
     /**
      * The read-only **`location`** property of the Document interface returns a Location object, which contains information about the URL of the document and provides methods for changing that URL and loading another URL.
      *
@@ -39731,7 +39731,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.9/serviceworker.generated.d.ts b/baselines/ts5.9/serviceworker.generated.d.ts
@@ -11059,7 +11059,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.9/sharedworker.generated.d.ts b/baselines/ts5.9/sharedworker.generated.d.ts
@@ -10596,7 +10596,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/ts5.9/webworker.generated.d.ts b/baselines/ts5.9/webworker.generated.d.ts
@@ -12513,7 +12513,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/baselines/webworker.generated.d.ts b/baselines/webworker.generated.d.ts
@@ -12516,7 +12516,7 @@ interface WebTransport {
      *
      * [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)
      */
-    createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;
+    createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;
 }
 
 declare var WebTransport: {
diff --git a/inputfiles/patches/html.kdl b/inputfiles/patches/html.kdl
@@ -117,7 +117,7 @@ typedef SelectionDirection overrideType=#""forward" | "backward" | "none""#
 
 dictionary StructuredSerializeOptions {
   member transfer {
-    type {
+    type sequence {
       type Transferable
     }
   }
@@ -165,8 +165,10 @@ interface Document {
   }
   property links {
     type HTMLCollectionOf {
-      type HTMLAnchorElement
-      type HTMLAreaElement
+      type {
+        type HTMLAnchorElement
+        type HTMLAreaElement
+      }
     }
   }
   property plugins {
diff --git a/inputfiles/patches/wasm-js-api.kdl b/inputfiles/patches/wasm-js-api.kdl
@@ -1,5 +1,5 @@
 typedef Exports legacyNamespace=WebAssembly {
-  type record union=#true {
+  type record {
     type DOMString
     type ExportValue
   }
diff --git a/src/build/patches.ts b/src/build/patches.ts
@@ -40,10 +40,10 @@ function optionalMember<const T>(prop: string, type: T, value?: Value) {
     [prop]: value as T extends "string"
       ? string
       : T extends "number"
-        ? number
-        : T extends "boolean"
-          ? boolean
-          : never,
+      ? number
+      : T extends "boolean"
+      ? boolean
+      : never,
   };
 }
 
@@ -59,10 +59,12 @@ function handleSingleTypeNode(type: Node): DeepPartial<Typed> {
   if (!isTyped) {
     throw new Error("Expected a type node");
   }
-  const typeValue = type.values[0];
+  // sometimes it is empty
+  const typeValue = type.values[0]
+    ?? (type.children[0]?.values?.[0] ?? undefined);
   const subType =
     type.children.length > 0 ? handleTyped(type.children) : undefined;
-  const isUnion = typeof type.properties.union == "boolean";
+  const isUnion = type.children.length > 1 ? true : typeof type.properties.union == "boolean";
   return {
     ...optionalMember("type", "string", typeValue),
     subtype:

Original file line number	Diff line number	Diff line change
`@@ -12378,7 +12378,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve`
`12378`	`12378`	`*`
`12379`	`12379`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/links)`
`12380`	`12380`	`*/`
`12381`		`- readonly links: HTMLCollectionOf<HTMLAnchorElement \| HTMLAreaElement>;`
	`12381`	`+ readonly links: HTMLCollectionOf<HTMLAnchorElement<HTMLAnchorElement, HTMLAreaElement>>;`
`12382`	`12382`	`/**`
`12383`	`12383`	* The read-only `location` property of the Document interface returns a Location object, which contains information about the URL of the document and provides methods for changing that URL and loading another URL.
`12384`	`12384`	`*`
`@@ -39734,7 +39734,7 @@ interface WebTransport {`
`39734`	`39734`	`*`
`39735`	`39735`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)`
`39736`	`39736`	`*/`
`39737`		`- createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;`
	`39737`	`+ createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;`
`39738`	`39738`	`}`
`39739`	`39739`
`39740`	`39740`	`declare var WebTransport: {`
Original file line number	Diff line number	Diff line change
`@@ -11062,7 +11062,7 @@ interface WebTransport {`
`11062`	`11062`	`*`
`11063`	`11063`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)`
`11064`	`11064`	`*/`
`11065`		`- createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;`
	`11065`	`+ createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;`
`11066`	`11066`	`}`
`11067`	`11067`
`11068`	`11068`	`declare var WebTransport: {`
Original file line number	Diff line number	Diff line change
`@@ -10599,7 +10599,7 @@ interface WebTransport {`
`10599`	`10599`	`*`
`10600`	`10600`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)`
`10601`	`10601`	`*/`
`10602`		`- createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;`
	`10602`	`+ createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;`
`10603`	`10603`	`}`
`10604`	`10604`
`10605`	`10605`	`declare var WebTransport: {`
Original file line number	Diff line number	Diff line change
`@@ -12367,7 +12367,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve`
`12367`	`12367`	`*`
`12368`	`12368`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/links)`
`12369`	`12369`	`*/`
`12370`		`- readonly links: HTMLCollectionOf<HTMLAnchorElement \| HTMLAreaElement>;`
	`12370`	`+ readonly links: HTMLCollectionOf<HTMLAnchorElement<HTMLAnchorElement, HTMLAreaElement>>;`
`12371`	`12371`	`/**`
`12372`	`12372`	* The read-only `location` property of the Document interface returns a Location object, which contains information about the URL of the document and provides methods for changing that URL and loading another URL.
`12373`	`12373`	`*`
`@@ -39708,7 +39708,7 @@ interface WebTransport {`
`39708`	`39708`	`*`
`39709`	`39709`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)`
`39710`	`39710`	`*/`
`39711`		`- createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;`
	`39711`	`+ createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;`
`39712`	`39712`	`}`
`39713`	`39713`
`39714`	`39714`	`declare var WebTransport: {`
Original file line number	Diff line number	Diff line change
`@@ -11059,7 +11059,7 @@ interface WebTransport {`
`11059`	`11059`	`*`
`11060`	`11060`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)`
`11061`	`11061`	`*/`
`11062`		`- createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;`
	`11062`	`+ createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;`
`11063`	`11063`	`}`
`11064`	`11064`
`11065`	`11065`	`declare var WebTransport: {`
Original file line number	Diff line number	Diff line change
`@@ -10596,7 +10596,7 @@ interface WebTransport {`
`10596`	`10596`	`*`
`10597`	`10597`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)`
`10598`	`10598`	`*/`
`10599`		`- createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;`
	`10599`	`+ createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;`
`10600`	`10600`	`}`
`10601`	`10601`
`10602`	`10602`	`declare var WebTransport: {`
Original file line number	Diff line number	Diff line change
`@@ -12513,7 +12513,7 @@ interface WebTransport {`
`12513`	`12513`	`*`
`12514`	`12514`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)`
`12515`	`12515`	`*/`
`12516`		`- createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;`
	`12516`	`+ createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;`
`12517`	`12517`	`}`
`12518`	`12518`
`12519`	`12519`	`declare var WebTransport: {`
Original file line number	Diff line number	Diff line change
`@@ -12375,7 +12375,7 @@ interface Document extends Node, DocumentOrShadowRoot, FontFaceSource, GlobalEve`
`12375`	`12375`	`*`
`12376`	`12376`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/Document/links)`
`12377`	`12377`	`*/`
`12378`		`- readonly links: HTMLCollectionOf<HTMLAnchorElement \| HTMLAreaElement>;`
	`12378`	`+ readonly links: HTMLCollectionOf<HTMLAnchorElement<HTMLAnchorElement, HTMLAreaElement>>;`
`12379`	`12379`	`/**`
`12380`	`12380`	* The read-only `location` property of the Document interface returns a Location object, which contains information about the URL of the document and provides methods for changing that URL and loading another URL.
`12381`	`12381`	`*`
`@@ -39731,7 +39731,7 @@ interface WebTransport {`
`39731`	`39731`	`*`
`39732`	`39732`	`* [MDN Reference](https://developer.mozilla.org/docs/Web/API/WebTransport/createUnidirectionalStream)`
`39733`	`39733`	`*/`
`39734`		`- createUnidirectionalStream(options?: WebTransportSendStreamOptions): Promise<WritableStream>;`
	`39734`	`+ createUnidirectionalStream(options?: WebTransportSendStreamOptions): WritableStream<WritableStream>;`
`39735`	`39735`	`}`
`39736`	`39736`
`39737`	`39737`	`declare var WebTransport: {`