public static bool TryCreate(SyntaxList <TNode> list, TextSpan span, out SyntaxListSelection <TNode> selectedNodes)
{
if (list.Any())
{
IndexPair indexes = GetIndexes(list, span);
if (indexes.IsValid)
{
selectedNodes = new SyntaxListSelection <TNode>(list, span, indexes.StartIndex, indexes.EndIndex);
return(true);
}
}
selectedNodes = null;
return(false);
}
public static bool TryCreate(SyntaxList <TNode> list, TextSpan span, out SyntaxListSelection <TNode> selection)
{
selection = null;
if (!list.Any())
{
return(false);
}
if (span.IsEmpty)
{
return(false);
}
(int startIndex, int endIndex) = GetIndexes(list, span);
if (startIndex == -1)
{
return(false);
}
selection = new SyntaxListSelection <TNode>(list, span, startIndex, endIndex);
return(true);
}
internal static bool TryCreate(SyntaxList <TNode> list, TextSpan span, int minCount, int maxCount, out SyntaxListSelection <TNode> selection)
{
selection = Create(list, span, minCount, maxCount);
return(selection != null);
}
/// <summary>
/// Creates a new <see cref="SyntaxListSelection{TNode}"/> based on the specified list and span.
/// </summary>
/// <param name="list"></param>
/// <param name="span"></param>
/// <param name="selection"></param>
/// <returns>True if the specified span contains at least one node; otherwise, false.</returns>
public static bool TryCreate(SyntaxList <TNode> list, TextSpan span, out SyntaxListSelection <TNode> selection)
{
selection = Create(list, span, 1, int.MaxValue);
return(selection != null);
}
internal EnumeratorImpl(SyntaxListSelection <TNode> selection)
{
_en = new Enumerator(selection);
}
internal Enumerator(SyntaxListSelection <TNode> selection)
{
_selection = selection;
_index = -1;
}
