/// <summary>
/// Indicates whether the current object is equal to another object of the same type.
/// </summary>
/// <param name="other">An object to compare with this object.</param>
/// <returns>
/// true if the current object is equal to the <paramref name="other"/> parameter; otherwise, false.
/// </returns>
public bool Equals(PoolValue <T> other)
{
if (this == _Empty)
{
return(other.IsEmpty);
}
return(EqualityComparer <T> .Default.Equals(_value, other._value));
}
/// <summary>
/// Returns a new PoolValue type containing a value.
/// </summary>
/// <param name="value">The value.</param>
/// <param name="defaultIsEmpty"> </param>
/// <param name="doNotPool"> </param>
/// <returns></returns>
public static PoolValue <T> NewValue(T value, bool defaultIsEmpty, bool doNotPool)
{
if (defaultIsEmpty && value.Equals(default(T)))
{
return(Empty);
}
var newItem = new PoolValue <T>(value);
if (doNotPool)
{
return(newItem);
}
lock (_PoolLock)
{
if (PooledItems.TryGetValue(newItem, out var oldItem))
{
return(oldItem);
}
PooledItems[newItem] = newItem;
}
return(newItem);
}
/// <summary>
/// Clears the pool.
/// </summary>
public static void ClearPool()
{
PoolValue <T> .ClearPool();
}
/// <summary>
/// Ensures the internal value is pooled. Usually called after clearing the pool.
/// </summary>
public void Repool()
{
_value = PoolValue <T> .NewValue(_value.Value);
}
/// <summary>
/// Initializes a new instance of the <see cref="DataItem<T>"/> class,
/// specifying whether the default for (T) results in an "empty" value.
/// </summary>
/// <param name="value">The value.</param>
/// <param name="defaultIsEmpty">if set to <c>true</c> [default is empty].</param>
/// <param name="doNotPool">if set to <c>true</c> [do not pool].</param>
public DataItem(T value, bool defaultIsEmpty, bool doNotPool)
{
_value = PoolValue <T> .NewValue(value, defaultIsEmpty, doNotPool);
}
/// <summary>
/// Initializes a new instance of the <see cref="DataItem<T>"/> class with a value.
/// </summary>
/// <param name="value">The value.</param>
public DataItem(T value)
{
_value = PoolValue <T> .NewValue(value, _defaultIsEmpty, false);
}
/// <summary>
/// Initializes a new instance of the <see cref="DataItem<T>"/> class with the "empty" value.
/// </summary>
public DataItem()
{
_value = PoolValue <T> .Empty;
}
