public override SyntaxNode VisitMarkupElement(MarkupElementSyntax node) { // We're visiting an attribute value. If we encounter a MarkupElement this means the attribute value is invalid. // We don't want to rewrite anything here. // E.g, <my age="@if (true) { <my4 age=... }"></my4> return(node); }
public override void VisitMarkupElement(MarkupElementSyntax node) { Visit(node.StartTag); _currentIndentationLevel++; foreach (var child in node.Body) { Visit(child); } _currentIndentationLevel--; Visit(node.EndTag); }
public override void VisitMarkupElement(MarkupElementSyntax node) { Visit(node.StartTag); // Temporary fix to not break the default Html formatting behavior. Remove after https://github.com/dotnet/aspnetcore/issues/25475. if (!string.Equals(node.StartTag?.Name?.Content, HtmlTagName, StringComparison.OrdinalIgnoreCase)) { _currentHtmlIndentationLevel++; } foreach (var child in node.Body) { Visit(child); } // Temporary fix to not break the default Html formatting behavior. Remove after https://github.com/dotnet/aspnetcore/issues/25475. if (!string.Equals(node.StartTag?.Name?.Content, HtmlTagName, StringComparison.OrdinalIgnoreCase)) { _currentHtmlIndentationLevel--; } Visit(node.EndTag); }
public override SyntaxNode VisitMarkupElement(MarkupElementSyntax node) { if (IsPartOfStartTag(node)) { // If this element is inside a start tag, it is some sort of malformed case like // <p @do { someattribute=\"btn\"></p>, where the end "p" tag is inside the start "p" tag. // We don't want to do tag helper parsing for this tag. return(base.VisitMarkupElement(node)); } MarkupTagHelperStartTagSyntax tagHelperStart = null; MarkupTagHelperEndTagSyntax tagHelperEnd = null; TagHelperInfo tagHelperInfo = null; // Visit the start tag. var startTag = (MarkupStartTagSyntax)Visit(node.StartTag); if (startTag != null) { var tagName = startTag.GetTagNameWithOptionalBang(); if (TryRewriteTagHelperStart(startTag, node.EndTag, out tagHelperStart, out tagHelperInfo)) { // This is a tag helper. if (tagHelperInfo.TagMode == TagMode.SelfClosing || tagHelperInfo.TagMode == TagMode.StartTagOnly) { var tagHelperElement = SyntaxFactory.MarkupTagHelperElement(tagHelperStart, body: new SyntaxList <RazorSyntaxNode>(), endTag: null); var rewrittenTagHelper = tagHelperElement.WithTagHelperInfo(tagHelperInfo); if (node.Body.Count == 0 && node.EndTag == null) { return(rewrittenTagHelper); } // This tag contains a body and/or an end tag which needs to be moved to the parent. var rewrittenNodes = SyntaxListBuilder <RazorSyntaxNode> .Create(); rewrittenNodes.Add(rewrittenTagHelper); var rewrittenBody = VisitList(node.Body); rewrittenNodes.AddRange(rewrittenBody); return(SyntaxFactory.MarkupElement(startTag: null, body: rewrittenNodes.ToList(), endTag: node.EndTag)); } else if (node.EndTag == null) { // Start tag helper with no corresponding end tag. _errorSink.OnError( RazorDiagnosticFactory.CreateParsing_TagHelperFoundMalformedTagHelper( new SourceSpan(SourceLocationTracker.Advance(startTag.GetSourceLocation(_source), "<"), tagName.Length), tagName)); } else { // Tag helper start tag. Keep track. var tracker = new TagHelperTracker(_tagHelperPrefix, tagHelperInfo); _trackerStack.Push(tracker); } } else { // Non-TagHelper tag. ValidateParentAllowsPlainStartTag(startTag); if (node.EndTag != null || (!startTag.IsSelfClosing() && !startTag.IsVoidElement())) { // Ideally we don't want to keep track of self-closing or void tags. // But if a matching end tag exists, keep track of the start tag no matter what. // We will just assume the parser had a good reason to do this. var tracker = new TagTracker(tagName, isTagHelper: false); _trackerStack.Push(tracker); } } } // Visit body between start and end tags. var body = VisitList(node.Body); // Visit end tag. var endTag = (MarkupEndTagSyntax)Visit(node.EndTag); if (endTag != null) { var tagName = endTag.GetTagNameWithOptionalBang(); if (TryRewriteTagHelperEnd(startTag, endTag, out tagHelperEnd)) { // This is a tag helper if (startTag == null) { // The end tag helper has no corresponding start tag, create an error. _errorSink.OnError( RazorDiagnosticFactory.CreateParsing_TagHelperFoundMalformedTagHelper( new SourceSpan(SourceLocationTracker.Advance(endTag.GetSourceLocation(_source), "</"), tagName.Length), tagName)); } } else { // Non tag helper end tag. if (startTag == null) { // Standalone end tag. We may need to error if it is not supposed to be here. // If there was a corresponding start tag, we would have already added this error. ValidateParentAllowsPlainEndTag(endTag); } else { // Since a start tag exists, we must already be tracking it. // Pop the stack as we're done with the end tag. _trackerStack.Pop(); } } } if (tagHelperInfo != null) { // If we get here it means this element was rewritten as a tag helper. var tagHelperElement = SyntaxFactory.MarkupTagHelperElement(tagHelperStart, body, tagHelperEnd); return(tagHelperElement.WithTagHelperInfo(tagHelperInfo)); } // There was no matching tag helper for this element. Return. return(node.Update(startTag, body, endTag)); }