runEventsInBatch() — react Function Reference

Architecture documentation for the runEventsInBatch() function in EventBatching.js from the react codebase.

Function javascript CompilerCore Suppression calls 1

Entity Profile

CompilerCore→ Suppression→ runEventsInBatch() — react Function Reference

Dependency Diagram

graph TD
  5efffabc_c2e8_5320_9d9a_8644c6b02f1e["runEventsInBatch()"]
  a944c363_6a35_5391_61a7_42a0bfda6052["EventBatching.js"]
  5efffabc_c2e8_5320_9d9a_8644c6b02f1e -->|defined in| a944c363_6a35_5391_61a7_42a0bfda6052
  6b245763_d7d9_fec1_1fd3_092c4686c9a6["rethrowCaughtError()"]
  5efffabc_c2e8_5320_9d9a_8644c6b02f1e -->|calls| 6b245763_d7d9_fec1_1fd3_092c4686c9a6
  style 5efffabc_c2e8_5320_9d9a_8644c6b02f1e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/react-native-renderer/src/legacy-events/EventBatching.js lines 40–67

export function runEventsInBatch(
  events: Array<ReactSyntheticEvent> | ReactSyntheticEvent | null,
) {
  if (events !== null) {
    eventQueue = accumulateInto(eventQueue, events);
  }

  // Set `eventQueue` to null before processing it so that we can tell if more
  // events get enqueued while processing.
  const processingEventQueue = eventQueue;
  eventQueue = null;

  if (!processingEventQueue) {
    return;
  }

  forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseTopLevel);

  if (eventQueue) {
    throw new Error(
      'processEventQueue(): Additional events were enqueued while processing ' +
        'an event queue. Support for this has not yet been implemented.',
    );
  }

  // This would be a good time to rethrow if any of the event handlers threw.
  rethrowCaughtError();
}