/// <summary>
/// Visit an <see cref="XmlEmptyElementSyntax"/>.
/// </summary>
/// <param name="emptyElement">
/// The <see cref="XmlEmptyElementSyntax"/>.
/// </param>
/// <returns>
/// The <see cref="XmlEmptyElementSyntax"/> (unchanged).
/// </returns>
public override SyntaxNode VisitXmlEmptyElement(XmlEmptyElementSyntax emptyElement)
{
Range elementRange = emptyElement.Span.ToNative(_textPositions);
Range nameRange = emptyElement.NameNode?.Span.ToNative(_textPositions) ?? elementRange;
Range attributesRange = emptyElement.AttributesNode?.FullSpan.ToNative(_textPositions) ?? elementRange;
XSElement xsElement;
if (String.IsNullOrWhiteSpace(emptyElement.Name))
{
xsElement = new XSInvalidElement(emptyElement, elementRange, nameRange, attributesRange, parent: CurrentElement, hasContent: false);
}
else
{
xsElement = new XSEmptyElement(emptyElement, elementRange, nameRange, attributesRange, parent: CurrentElement);
}
if (xsElement.ParentElement is XSElementWithContent parentElement)
{
parentElement.Content = parentElement.Content.Add(xsElement);
}
PushElement(xsElement);
foreach (XmlAttributeSyntax attribute in emptyElement.AsSyntaxElement.Attributes)
{
Visit(attribute);
}
PopElement();
return(emptyElement);
}
/// <summary>
/// Visit an <see cref="XmlElementSyntax"/>.
/// </summary>
/// <param name="element">
/// The <see cref="XmlElementSyntax"/>.
/// </param>
/// <returns>
/// The <see cref="XmlElementSyntax"/> (unchanged).
/// </returns>
public override SyntaxNode VisitXmlElement(XmlElementSyntax element)
{
Range elementRange = element.Span.ToNative(_textPositions);
Range nameRange = element.NameNode?.Span.ToNative(_textPositions) ?? elementRange;
Range openingTagRange = element.StartTag?.Span.ToNative(_textPositions) ?? elementRange;
Range attributesRange = element.AttributesNode?.FullSpan.ToNative(_textPositions) ?? elementRange;
Range closingTagRange = element.EndTag?.Span.ToNative(_textPositions) ?? elementRange;
Range contentRange;
if (openingTagRange.End <= closingTagRange.Start)
{
contentRange = new Range(
start: openingTagRange.End,
end: closingTagRange.Start
);
}
else
{
contentRange = elementRange;
}
// All the ways an XML element can go wrong.
XSElement xsElement;
if (String.IsNullOrWhiteSpace(element.Name))
{
if (element.StartTag.Width == 2) // <> surrounded by whitespace
{
xsElement = new XSInvalidElement(element, openingTagRange, nameRange, attributesRange: openingTagRange, parent: CurrentElement, hasContent: false);
}
else if (element.EndTag == null) // <<
{
xsElement = new XSInvalidElement(element, openingTagRange, nameRange, attributesRange: openingTagRange, parent: CurrentElement, hasContent: false);
}
else if (element.EndTag.Width == 0) // <> after an element
{
openingTagRange = new Range(
_textPositions.GetPosition(element.Span.Start),
_textPositions.GetPosition(element.Span.Start + 1)
);
xsElement = new XSInvalidElement(element, openingTagRange, nameRange, attributesRange: openingTagRange, parent: CurrentElement, hasContent: false);
}
else // F**k knows.
{
xsElement = new XSInvalidElement(element, elementRange, nameRange, attributesRange: openingTagRange, parent: CurrentElement, hasContent: true);
}
}
else if (String.IsNullOrWhiteSpace(element.EndTag.Name)) // <XXX> with no </XXX>
{
xsElement = new XSInvalidElement(element, openingTagRange, nameRange, attributesRange: openingTagRange, parent: CurrentElement, hasContent: false);
}
else
{
xsElement = new XSElementWithContent(element, elementRange, nameRange, openingTagRange, attributesRange, contentRange, closingTagRange, parent: CurrentElement);
}
if (xsElement.ParentElement is XSElementWithContent parentElement)
{
parentElement.Content = parentElement.Content.Add(xsElement);
}
PushElement(xsElement);
foreach (XmlAttributeSyntax attribute in element.AsSyntaxElement.Attributes)
{
Visit(attribute);
}
if (element.Content is SyntaxList childElements)
{
foreach (XmlElementSyntaxBase childElement in childElements.ChildNodes.OfType <XmlElementSyntaxBase>())
{
Visit(childElement);
}
}
else if (element.Content is XmlElementSyntaxBase singleChildElement)
{
Visit(singleChildElement);
}
else if (element.Content is XmlTextSyntax text)
{
VisitXmlText(text);
}
PopElement();
return(element);
}
