public virtual SyntaxList <TNode> VisitList <TNode>(SyntaxList <TNode> list) where TNode : SyntaxNode
{
SyntaxListBuilder alternate = null;
for (int i = 0, n = list.Count; i < n; i++)
{
var item = list[i];
var visited = VisitListElement(item);
if (item != visited && alternate == null)
{
alternate = new SyntaxListBuilder(n);
alternate.AddRange(list, 0, i);
}
if (alternate != null && visited != null)
{
alternate.Add(visited);
}
}
if (alternate != null)
{
return(alternate.ToList());
}
return(list);
}
private SyntaxList <RazorSyntaxNode> GetLegacyChildren()
{
// This method returns the children of this start tag in legacy format.
// This is needed to generate the same classified spans as the legacy syntax tree.
var builder = new SyntaxListBuilder(5);
var tokens = SyntaxListBuilder <SyntaxToken> .Create();
var context = this.GetSpanContext();
// We want to know if this tag contains non-whitespace attribute content to set the appropriate AcceptedCharacters.
// The prefix of a start tag(E.g '|<foo| attr>') will have 'Any' accepted characters if non-whitespace attribute content exists.
var acceptsAnyContext = new SpanContext(context.ChunkGenerator, SpanEditHandler.CreateDefault());
acceptsAnyContext.EditHandler.AcceptedCharacters = AcceptedCharactersInternal.Any;
var containsAttributesContent = false;
foreach (var attribute in Attributes)
{
if (!string.IsNullOrWhiteSpace(attribute.GetContent()))
{
containsAttributesContent = true;
break;
}
}
if (!OpenAngle.IsMissing)
{
tokens.Add(OpenAngle);
}
if (Bang != null)
{
builder.Add(SyntaxFactory.MarkupTextLiteral(tokens.Consume()).WithSpanContext(acceptsAnyContext));
tokens.Add(Bang);
var acceptsNoneContext = new SpanContext(context.ChunkGenerator, SpanEditHandler.CreateDefault());
acceptsNoneContext.EditHandler.AcceptedCharacters = AcceptedCharactersInternal.None;
builder.Add(SyntaxFactory.RazorMetaCode(tokens.Consume()).WithSpanContext(acceptsNoneContext));
}
if (!Name.IsMissing)
{
tokens.Add(Name);
}
builder.Add(SyntaxFactory.MarkupTextLiteral(tokens.Consume()).WithSpanContext(containsAttributesContent ? acceptsAnyContext : context));
builder.AddRange(Attributes);
if (ForwardSlash != null)
{
tokens.Add(ForwardSlash);
}
if (!CloseAngle.IsMissing)
{
tokens.Add(CloseAngle);
}
if (tokens.Count > 0)
{
builder.Add(SyntaxFactory.MarkupTextLiteral(tokens.Consume()).WithSpanContext(context));
}
return(new SyntaxList <RazorSyntaxNode>(builder.ToListNode().CreateRed(this, Position)));
}