@graphql-mesh/utils
Version:
32 lines (31 loc) • 1.33 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.withCancel = void 0;
function withCancel(asyncIterable, onCancel) {
return new Proxy(asyncIterable, {
get(asyncIterable, prop) {
var _a;
if (prop === Symbol.asyncIterator) {
return function getIteratorWithCancel() {
const asyncIterator = asyncIterable[Symbol.asyncIterator]();
return {
next: asyncIterator.next ? (...args) => asyncIterator.next(...args) : undefined,
return: async (...args) => {
onCancel();
if (asyncIterator.return) {
return asyncIterator.return(...args);
}
return {
value: undefined,
done: true,
};
},
throw: asyncIterator.throw ? (...args) => asyncIterator.throw(...args) : undefined,
};
};
}
return (_a = asyncIterable[prop]) === null || _a === void 0 ? void 0 : _a.bind(asyncIterable);
},
});
}
exports.withCancel = withCancel;