getComputedValue<T> method

T getComputedValue<T>(_AlienComputed<T> computed)

Implementation

T getComputedValue<T>(_AlienComputed<T> computed) {
  // Invariant: a computed is never `pending` while detached from the graph
  // (`deps == null`). `pending` is only set by `propagate`, which reaches a
  // node through the very dependency links that make `deps` non-null, and
  // every teardown path (recompute / unwatch / stop / signal dispose) either
  // clears `pending` or fully unlinks the node. If this ever fires, a code
  // path is leaving a half-linked node (e.g. a one-sided unlink), which would
  // otherwise crash in upstream `ComputedNode.get()` via `checkDirty(deps!)`.
  assert(
    computed.deps != null ||
        (computed.flags & alien_system.ReactiveFlags.pending) ==
            alien_system.ReactiveFlags.none,
    'computed is pending while detached (deps == null) — a subscriber link '
    'was not fully unlinked',
  );
  return computed.get();
}