fix: add ECMAScript Explicit Resource Management to Resource

[ddosakura]

Add ECMAScript Explicit Resource Management to Resource.

This makes the await using work:

import { create, BaseDirectory } from "@tauri-apps/plugin-fs"
...
{
  await using file = await create("foo/bar.txt", { baseDir: BaseDirectory.AppConfig });
  await file.write(new TextEncoder().encode("Hello world"));
  // Before `file` goes out of scope, it is disposed by calling `file[Symbol.asyncDispose]()` and awaited.
}

[github-actions]

Package Changes Through b47839d

There are 5 changes which include tauri-cli with minor, tauri-bundler with minor, tauri-utils with minor, @tauri-apps/api with minor, @tauri-apps/cli with minor

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
@tauri-apps/api	2.8.0	2.9.0
tauri-utils	2.7.0	2.8.0
tauri-bundler	2.6.1	2.7.0
tauri-runtime	2.8.0	2.8.1
tauri-runtime-wry	2.8.1	2.8.2
tauri-codegen	2.4.0	2.4.1
tauri-macros	2.4.0	2.4.1
tauri-plugin	2.4.0	2.4.1
tauri-build	2.4.1	2.4.2
tauri	2.8.5	2.8.6
@tauri-apps/cli	2.8.4	2.9.0
tauri-cli	2.8.4	2.9.0

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[Legend-Master]

Thanks for bring this up!

I have one question though, I believe Symbol.asyncDispose doesn't exist on older browsers, should we provide a polyfill here?

Symbol.asyncDispose ??= Symbol("Symbol.asyncDispose");
https://www.typescriptlang.org/docs/handbook/release-notes/typescript-5-2.html#using-declarations-and-explicit-resource-management:~:text=Symbol.asyncDispose%20%3F%3F%3D%20Symbol(%22Symbol.asyncDispose%22)%3B

cc @lucasfernog @FabianLars

[FabianLars]

Not only older browsers but webkit as a whole as well which means this is a Windows only change.

[Legend-Master]

but webkit as a whole

Technically it's a coming soon https://webkit.org/blog/16993/news-from-wwdc25-web-technology-coming-this-fall-in-safari-26-beta/ but yeah, this is still useful for people using the transpiler/polyfill themselves though

[FabianLars]

hmm true but having macos 26 as a minimum version sounds a bit problematic (and who knows when/if linux follows)