/// <summary>
/// Initializes a new instance of the <see cref="Enumerator"/> struct.
/// </summary>
/// <param name="stack">The stack to enumerator.</param>
internal Enumerator(ImmutableStack <T> stack)
{
Requires.NotNull(stack, nameof(stack));
_originalStack = stack;
_remainingStack = null;
}
/// <summary>
/// Initializes a new instance of the <see cref="EnumeratorObject"/> class.
/// </summary>
/// <param name="stack">The stack to enumerator.</param>
internal EnumeratorObject(ImmutableStack <T> stack)
{
Requires.NotNull(stack, nameof(stack));
_originalStack = stack;
}
/// <summary>
/// Resets the position to just before the first element in the list.
/// </summary>
public void Reset()
{
this.ThrowIfDisposed();
_remainingStack = null;
}
/// <summary>
/// Restarts enumeration.
/// </summary>
public void Reset()
{
this.ThrowIfDisposed();
_remainingBackwardsStack = null;
_remainingForwardsStack = null;
}
/// <summary>
/// Initializes a new instance of the <see cref="ImmutableStack<T>"/> class.
/// </summary>
/// <param name="head">The head element on the stack.</param>
/// <param name="tail">The rest of the elements on the stack.</param>
private ImmutableStack(T head, ImmutableStack <T> tail)
{
Requires.NotNull(tail, "tail");
this.head = head;
this.tail = tail;
}
/// <summary>
/// Initializes a new instance of the <see cref="DebuggerProxy"/> class.
/// </summary>
/// <param name="stack">The collection to display in the debugger</param>
public DebuggerProxy(ImmutableStack <T> stack)
{
Requires.NotNull(stack, "stack");
this.stack = stack;
}
/// <summary>
/// Initializes a new instance of the <see cref="EnumeratorObject"/> class.
/// </summary>
/// <param name="stack">The stack to enumerator.</param>
internal EnumeratorObject(ImmutableStack <T> stack)
{
Requires.NotNull(stack, "stack");
this.originalStack = stack;
}
/// <summary>
/// Initializes a new instance of the <see cref="Enumerator"/> struct.
/// </summary>
/// <param name="stack">The stack to enumerator.</param>
internal Enumerator(ImmutableStack <T> stack)
{
Requires.NotNull(stack, "stack");
this.originalStack = stack;
this.remainingStack = null;
}
