instant method

void instant(
  1. String name, {
  2. Map? arguments,
})

Emit an instant event for this task. Optionally takes a Map of arguments.

Implementation

void instant(String name, {Map? arguments}) {
  if (!_hasTimeline) return;
  // TODO: When NNBD is complete, delete the following line.
  ArgumentError.checkNotNull(name, 'name');
  if (!_isDartStreamEnabled()) {
    // Stream is disabled.
    return;
  }
  final instantArguments = {
    ...?arguments,
    if (_filterKey != null) _kFilterKey: _filterKey,
  };
  _reportTaskEvent(
    _taskId,
    /*flowId=*/ _noFlowId,
    _asyncInstant,
    name,
    _argumentsAsJson(instantArguments),
  );
}