/// <summary>
/// Evaluates the pointer against a JSON instance.
/// </summary>
/// <param name="root">The JSON instance.</param>
/// <returns>The element the pointer references, if any.</returns>
public PointerEvaluationResults Evaluate(JsonValue root)
{
var upTo = new JsonPointer();
var current = root;
foreach (var segment in this)
{
upTo.Add(segment);
current = _EvaluateSegment(current, segment);
if (current == null)
{
return(new PointerEvaluationResults($"No value found at '{upTo}'"));
}
}
return(new PointerEvaluationResults(current));
}
private JsonPointer(JsonPointer source, int capacity, bool usesHash)
: base(capacity)
{
AddRange(source.FirstOrDefault() == "#" ? source.SkipWhile(s => s == "#") : source);
_usesHash = usesHash;
}
/// <summary>
/// Determines whether the pointer is a child of another pointer (starts with the same segments).
/// </summary>
/// <param name="pointer">Another pointer.</param>
/// <returns>`true` if this pointer starts with all of the segments of <paramref name="pointer"/>; `false` otherwise.</returns>
public bool IsChildOf(JsonPointer pointer)
{
return(this.Take(pointer.Count).SequenceEqual(pointer));
}