rc-dispose

Reference counted explicit resource management in TypeScript.

Usage

import { rc } from "@xubaiwang/rc-dispose";

// foo is a disposable object
const foo = {
  [Symbol.dispose]() {
    console.log("this is disposed");
  }
}

// wrap it in rc
const rcFoo = rc(foo, { count: 2 });

// now foo need two using to dispose
using foo1 = rcFoo;
using foo2 = rcFoo;

Comparison with other approaches

• FinalizationRegistry: not guranteed to be called
• ordinary using: cannot span across scopes

Ceveats

• identity from ownership to refcount is not guranteed (c.f. Rust Rc)
• all known ceveats from Proxy