read<T> method

T read<T>()

Reads the nearest instance of T provided by this node or an ancestor, checking this node first.

Not reactive: whether it finds a match or not, the result is cached until the node is unmounted, so a later provide call for T won't be picked up until then.

Throws a StateError if this node is not mounted yet, or if no T was ever provided.

Implementation

T read<T>() {
  final value = readOrNull<T>();
  if (value != null) return value;
  throw StateError('No provider found for $T.');
}