Function accumulateDirectionalDispatches

code/styling/public/app.js:2670–2679

* Tags a `SyntheticEvent` with dispatched listeners. Creating this function * here, allows us to not have to bind or create functions for each event. * Mutating the event's members allows us to not have to create a wrapping * "dispatch" object that pairs the event with the listener.

(inst, phase, event)

 * "dispatch" object that pairs the event with the listener.
 */
function accumulateDirectionalDispatches(inst, phase, event) {
  {
    warning(inst, 'Dispatching inst must not be null');
  }
  var listener = listenerAtPhase(inst, event, phase);
  if (listener) {
    event._dispatchListeners = accumulateInto(event._dispatchListeners, listener);
    event._dispatchInstances = accumulateInto(event._dispatchInstances, inst);
  }
}

/**
 * Collect dispatches (must be entirely collected before dispatching - see unit