If fn in stack.defer() throws or returns rejected promise, one gets `Cannot read properties of undefined (reading '?')`

[azerum]

Minimal TS code:

import 'disposablestack/auto'

async function main() {
    await using stack = new AsyncDisposableStack()    
    
    stack.defer(() => {
        console.log('1')
    })
    
    stack.defer(() => {
        throw new Error('2')
    })
}

void main()

Compiled to JS

var __addDisposableResource = (this && this.__addDisposableResource) || function (env, value, async) {
    if (value !== null && value !== void 0) {
        if (typeof value !== "object" && typeof value !== "function") throw new TypeError("Object expected.");
        var dispose, inner;
        if (async) {
            if (!Symbol.asyncDispose) throw new TypeError("Symbol.asyncDispose is not defined.");
            dispose = value[Symbol.asyncDispose];
        }
        if (dispose === void 0) {
            if (!Symbol.dispose) throw new TypeError("Symbol.dispose is not defined.");
            dispose = value[Symbol.dispose];
            if (async) inner = dispose;
        }
        if (typeof dispose !== "function") throw new TypeError("Object not disposable.");
        if (inner) dispose = function() { try { inner.call(this); } catch (e) { return Promise.reject(e); } };
        env.stack.push({ value: value, dispose: dispose, async: async });
    }
    else if (async) {
        env.stack.push({ async: true });
    }
    return value;
};
var __disposeResources = (this && this.__disposeResources) || (function (SuppressedError) {
    return function (env) {
        function fail(e) {
            env.error = env.hasError ? new SuppressedError(e, env.error, "An error was suppressed during disposal.") : e;
            env.hasError = true;
        }
        function next() {
            while (env.stack.length) {
                var rec = env.stack.pop();
                try {
                    var result = rec.dispose && rec.dispose.call(rec.value);
                    if (rec.async) return Promise.resolve(result).then(next, function(e) { fail(e); return next(); });
                }
                catch (e) {
                    fail(e);
                }
            }
            if (env.hasError) throw env.error;
        }
        return next();
    };
})(typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) {
    var e = new Error(message);
    return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e;
});
import 'disposablestack/auto';
async function main() {
    const env_1 = { stack: [], error: void 0, hasError: false };
    try {
        const stack = __addDisposableResource(env_1, new AsyncDisposableStack(), true);
        stack.defer(() => {
            console.log('1');
        });
        stack.defer(() => {
            throw new Error('2');
        });
    }
    catch (e_1) {
        env_1.error = e_1;
        env_1.hasError = true;
    }
    finally {
        const result_1 = __disposeResources(env_1);
        if (result_1)
            await result_1;
    }
}
void main();

I would expect:

• 1 to be printed
• Disposal of stack to throw the created new Error('2')

What actually happens (full output):

<redacted-path>/node_modules/.pnpm/disposablestack@1.1.7/node_modules/disposablestack/AsyncDisposableStack/implementation.js:83
			return completion['?'](); // step 5
			                 ^

TypeError: Cannot read properties of undefined (reading '?')
    at <redacted-path>/node_modules/.pnpm/disposablestack@1.1.7/node_modules/disposablestack/AsyncDisposableStack/implementation.js:83:21
    at main (<redacted-path>:4:5)

Note that making the throwing lambda async gives the same error

Versions:

• disposablestack: 1.1.7

• typescript: 5.5.4

• Node.js: 20.16.0

• tsconfig:

"compilerOptions": {
     "module": "Node16",
     "moduleResolution": "Node16",
     "lib": ["ES2022", "ESNext.Disposable"],
     "target": "ES2022"
}