🤖 Merge PR DefinitelyTyped#72556 node/stream: Update undefined->void in line with TS 5.8 changes by @shicks

Author: shicks

types/node/stream/web.d.ts

@@ -97,7 +97,7 @@ declare module "stream/web" {
         signal?: AbortSignal;
     }
     interface ReadableStreamGenericReader {
-        readonly closed: Promise<undefined>;
+        readonly closed: Promise<void>;
         cancel(reason?: any): Promise<void>;
     }
     type ReadableStreamController<T> = ReadableStreamDefaultController<T>;
@@ -307,9 +307,9 @@ declare module "stream/web" {
      * sink.
      */
     interface WritableStreamDefaultWriter<W = any> {
-        readonly closed: Promise<undefined>;
+        readonly closed: Promise<void>;
         readonly desiredSize: number | null;
-        readonly ready: Promise<undefined>;
+        readonly ready: Promise<void>;
         abort(reason?: any): Promise<void>;
         close(): Promise<void>;
         releaseLock(): void;

types/node/test/stream.ts

@@ -811,7 +811,7 @@ async function testTransferringStreamWithPostMessage() {
     // $ExpectType Promise<void>
     byobReader.cancel("reason");
 
-    // $ExpectType Promise<undefined>
+    // $ExpectType Promise<void>
     byobReader.closed;
 
     // $ExpectType Promise<ReadableStreamReadResult<Uint8Array<ArrayBuffer>>>

types/node/v18/stream/web.d.ts

@@ -97,7 +97,7 @@ declare module "stream/web" {
         signal?: AbortSignal;
     }
     interface ReadableStreamGenericReader {
-        readonly closed: Promise<undefined>;
+        readonly closed: Promise<void>;
         cancel(reason?: any): Promise<void>;
     }
     type ReadableStreamController<T> = ReadableStreamDefaultController<T>;
@@ -301,9 +301,9 @@ declare module "stream/web" {
      * sink.
      */
     interface WritableStreamDefaultWriter<W = any> {
-        readonly closed: Promise<undefined>;
+        readonly closed: Promise<void>;
         readonly desiredSize: number | null;
-        readonly ready: Promise<undefined>;
+        readonly ready: Promise<void>;
         abort(reason?: any): Promise<void>;
         close(): Promise<void>;
         releaseLock(): void;

types/node/v18/test/stream.ts

@@ -731,7 +731,7 @@ async function testTransferringStreamWithPostMessage() {
     // $ExpectType Promise<void>
     byobReader.cancel("reason");
 
-    // $ExpectType Promise<undefined>
+    // $ExpectType Promise<void>
     byobReader.closed;
 
     // $ExpectType Promise<ReadableStreamReadResult<Uint8Array<ArrayBuffer>>>

types/node/v20/stream/web.d.ts

@@ -97,7 +97,7 @@ declare module "stream/web" {
         signal?: AbortSignal;
     }
     interface ReadableStreamGenericReader {
-        readonly closed: Promise<undefined>;
+        readonly closed: Promise<void>;
         cancel(reason?: any): Promise<void>;
     }
     type ReadableStreamController<T> = ReadableStreamDefaultController<T>;
@@ -307,9 +307,9 @@ declare module "stream/web" {
      * sink.
      */
     interface WritableStreamDefaultWriter<W = any> {
-        readonly closed: Promise<undefined>;
+        readonly closed: Promise<void>;
         readonly desiredSize: number | null;
-        readonly ready: Promise<undefined>;
+        readonly ready: Promise<void>;
         abort(reason?: any): Promise<void>;
         close(): Promise<void>;
         releaseLock(): void;

types/node/v20/test/stream.ts

@@ -811,7 +811,7 @@ async function testTransferringStreamWithPostMessage() {
     // $ExpectType Promise<void>
     byobReader.cancel("reason");
 
-    // $ExpectType Promise<undefined>
+    // $ExpectType Promise<void>
     byobReader.closed;
 
     // $ExpectType Promise<ReadableStreamReadResult<Uint8Array<ArrayBuffer>>>