getOrInit method

@override T getOrInit(T func())

Gets the contents of the cell, initializing it with func if the cell was empty.

Implementation

@override
T getOrInit(T Function() func) {
  var val = _cache[this] as T?;
  if (val != null) {
    return val;
  }
  val = func();
  _cache[this] = val;
  return val;
}