/// <summary>
/// Gets the <paramref name="startingPoint"/> (if <paramref name="returnStartingPoint"/> is true) and all of the descendants of the <paramref name="startingPoint"/>.
/// </summary>
/// <param name="startingPoint">The starting point</param>
/// <param name="returnStartingPoint">If true, return the starting point first. Otherwise, just return the descendants.</param>
/// <returns><paramref name="startingPoint"/> (if <paramref name="returnStartingPoint"/> is true) and its descendants</returns>
protected static IEnumerable <AbstractProgramElement> GetDescendants(AbstractProgramElement startingPoint, bool returnStartingPoint)
{
if (returnStartingPoint)
{
yield return(startingPoint);
}
foreach (var element in startingPoint.GetChildren())
{
foreach (var descendant in GetDescendants(element, true))
{
yield return(descendant);
}
}
}
/// <summary>
/// Gets an element and all of its ancestors
/// </summary>
/// <param name="startingPoint">The first element to return</param>
/// <returns>The <paramref name="startingPoint"/> and all of its ancestors</returns>
protected static IEnumerable <AbstractProgramElement> GetAncestorsAndStartingPoint(AbstractProgramElement startingPoint)
{
var current = startingPoint;
while (null != current)
{
yield return(current);
current = current.GetParent();
}
}
