Returns promise values as-is, otherwise wraps a value in a resolved Promise.

Runs queued microtasks until the queue is empty.

Creates a pending Promise state value.

Implements Promise.prototype.catch state transitions.

Implements Promise.prototype.finally state transitions.

Implements Promise.prototype.then state transitions.

Creates or returns a rejected Promise state value.

Resolves a Promise state and drains queued reactions.

Resolves a Promise state with normal Promise-resolution adoption.

Creates or returns a resolved Promise state value.