feat: disposable Deno resources (#20845)

This commit implements Symbol.dispose and Symbol.asyncDispose for
the relevant resources.

Closes #20839

---------

Signed-off-by: Bartek Iwańczuk <biwanczuk@gmail.com>
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

2 files changed, 14 insertions, 2 deletions

diff --git a/ext/net/01_net.js b/ext/net/01_net.js
index f2bf5e7df..05aca07e5 100644
--- a/ext/net/01_net.js
+++ b/ext/net/01_net.js
@@ -9,6 +9,8 @@ import {
   writableStreamForRid,
 } from "ext:deno_web/06_streams.js";
 import * as abortSignal from "ext:deno_web/03_abort_signal.js";
+import { SymbolDispose } from "ext:deno_web/00_infra.js";
+
 const primordials = globalThis.__bootstrap.primordials;
 const {
   ArrayPrototypeFilter,
@@ -160,6 +162,10 @@ class Conn {
       (id) => core.unrefOp(id),
     );
   }
+
+  [SymbolDispose]() {
+    core.tryClose(this.#rid);
+  }
 }
 
 class TcpConn extends Conn {
@@ -249,6 +255,10 @@ class Listener {
     core.close(this.rid);
   }
 
+  [SymbolDispose]() {
+    core.tryClose(this.#rid);
+  }
+
   [SymbolAsyncIterator]() {
     return this;
   }
diff --git a/ext/net/lib.deno_net.d.ts b/ext/net/lib.deno_net.d.ts
index 030157d63..79e15563a 100644
--- a/ext/net/lib.deno_net.d.ts
+++ b/ext/net/lib.deno_net.d.ts
@@ -2,6 +2,7 @@
 
 /// <reference no-default-lib="true" />
 /// <reference lib="esnext" />
+/// <reference lib="esnext.disposable" />
 
 declare namespace Deno {
   /** @category Network */
@@ -24,7 +25,8 @@ declare namespace Deno {
    *
    * @category Network
    */
-  export interface Listener<T extends Conn = Conn> extends AsyncIterable<T> {
+  export interface Listener<T extends Conn = Conn>
+    extends AsyncIterable<T>, Disposable {
     /** Waits for and resolves to the next connection to the `Listener`. */
     accept(): Promise<T>;
     /** Close closes the listener. Any pending accept promises will be rejected
@@ -57,7 +59,7 @@ declare namespace Deno {
   export type TlsListener = Listener<TlsConn>;
 
   /** @category Network */
-  export interface Conn extends Reader, Writer, Closer {
+  export interface Conn extends Reader, Writer, Closer, Disposable {
     /** The local address of the connection. */
     readonly localAddr: Addr;
     /** The remote address of the connection. */