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>

1 files changed, 16 insertions, 3 deletions

diff --git a/runtime/js/99_main.js b/runtime/js/99_main.js
index ccc61036a..ac1f52e74 100644
--- a/runtime/js/99_main.js
+++ b/runtime/js/99_main.js
@@ -70,11 +70,24 @@ import {
   windowOrWorkerGlobalScope,
   workerRuntimeGlobalProperties,
 } from "ext:runtime/98_global_scope.js";
+import { SymbolAsyncDispose, SymbolDispose } from "ext:deno_web/00_infra.js";
 
 // deno-lint-ignore prefer-primordials
-Symbol.dispose ??= Symbol("Symbol.dispose");
-// deno-lint-ignore prefer-primordials
-Symbol.asyncDispose ??= Symbol("Symbol.asyncDispose");
+if (Symbol.dispose) throw "V8 supports Symbol.dispose now, no need to shim it!";
+ObjectDefineProperties(Symbol, {
+  dispose: {
+    value: SymbolDispose,
+    enumerable: false,
+    writable: false,
+    configurable: false,
+  },
+  asyncDispose: {
+    value: SymbolAsyncDispose,
+    enumerable: false,
+    writable: false,
+    configurable: false,
+  },
+});
 
 let windowIsClosing = false;
 let globalThis_;