private static SyntaxNode FixComment(Document document, SyntaxNode syntax, DocumentationCommentTriviaSyntax comment)
{
foreach (var part in comment.Content)
{
if (part is XmlElementSyntax e && e.GetName() == Constants.XmlTag.Exception)
{
foreach (var attribute in e.GetAttributes <XmlCrefAttributeSyntax>())
{
switch (attribute.Cref)
{
case QualifiedCrefSyntax q when IsObjectDisposedException(q.ToString()):
case NameMemberCrefSyntax m when IsObjectDisposedException(m.ToString()):
{
var symbol = GetSymbol(document, syntax);
var phrase = MiKo_2056_ObjectDisposedExceptionPhraseAnalyzer.GetEndingPhrase(symbol);
var exceptionComment = CommentEndingWith(e, phrase);
return(comment.ReplaceNode(part, exceptionComment));
}
}
}
}
}
return(null);
}
private DocumentationCommentTriviaSyntax ProcessTag(
DocumentationCommentTriviaSyntax documentationNode,
IMethodOrAccessorTransformationResult methodTransformResult,
string tagName,
Func <IMethodSymbol, string> addOrReplace,
Predicate <IMethodSymbol> canRemove,
bool prepend)
{
if (addOrReplace == null && canRemove == null)
{
return(documentationNode);
}
var methodSymbol = methodTransformResult.AnalyzationResult.Symbol;
var tagContent = addOrReplace?.Invoke(methodSymbol);
var removeTag = canRemove?.Invoke(methodSymbol);
var tagNode = documentationNode.Content.OfType <XmlElementSyntax>()
.FirstOrDefault(o => o.StartTag.Name.ToString() == tagName);
if (!string.IsNullOrEmpty(tagContent))
{
var indent = methodTransformResult.LeadingWhitespaceTrivia.ToFullString();
var eol = methodTransformResult.EndOfLineTrivia.ToFullString();
var tagComment = CreateTagContent(tagName, tagContent, indent, eol);
// When prepending a new tag before an existing tag we have to add the indentation at the end otherwise on start
if (prepend && tagNode == null && documentationNode.Content.Any())
{
var lastComment = tagComment.Content.Last();
tagComment = tagComment.ReplaceNode(lastComment, lastComment
.WithTrailingTrivia(lastComment.GetTrailingTrivia()
.Add(methodTransformResult.LeadingWhitespaceTrivia)));
}
else
{
var startComment = tagComment.Content.First();
tagComment = tagComment.ReplaceNode(startComment, startComment
.WithLeadingTrivia(DocumentationCommentExterior($"{indent}///")));
}
if (tagNode != null)
{
documentationNode = documentationNode.ReplaceNode(tagNode, tagComment.Content.OfType <XmlElementSyntax>().First());
}
else
{
documentationNode = documentationNode.WithContent(prepend
? documentationNode.Content.InsertRange(0, tagComment.Content)
: documentationNode.Content.AddRange(tagComment.Content));
}
}
else if (removeTag == true && tagNode != null)
{
// We need to remove the "///" XmlText and the tag itself
var index = documentationNode.Content.IndexOf(tagNode);
documentationNode = documentationNode.RemoveNode(tagNode, SyntaxRemoveOptions.KeepNoTrivia);
documentationNode = documentationNode.RemoveNode(documentationNode.Content[index - 1], SyntaxRemoveOptions.KeepNoTrivia);
}
return(documentationNode);
}
private static SyntaxNode FixTypeSummary(DocumentationCommentTriviaSyntax comment)
{
const string Phrase = Constants.Comments.ExceptionTypeSummaryStartingPhrase;
var summary = GetXmlSyntax(Constants.XmlTag.Summary, comment).FirstOrDefault();
if (summary is null)
{
var newSummary = Comment(SyntaxFactory.XmlSummaryElement(), Phrase).WithTrailingXmlComment();
return(comment.InsertNodeAfter(comment.Content[0], newSummary));
}
else
{
var newSummary = CommentStartingWith(summary, Phrase);
return(comment.ReplaceNode(summary, newSummary));
}
}
/// <summary>
/// Add <paramref name="summary"/> element to <paramref name="comment"/>
/// Replace if a summary element exists.
/// </summary>
/// <param name="comment">The <see cref="DocumentationCommentTriviaSyntax"/>.</param>
/// <param name="summary"> The <see cref="XmlElementSyntax"/>.</param>
/// <returns><paramref name="comment"/> with <paramref name="summary"/>.</returns>
public static DocumentationCommentTriviaSyntax WithSummary(this DocumentationCommentTriviaSyntax comment, XmlElementSyntax summary)
{
if (comment is null)
{
throw new ArgumentNullException(nameof(comment));
}
if (comment.TryGetSummary(out var old))
{
return(comment.ReplaceNode(old, summary));
}
if (comment.Content.TryFirstOfType(out XmlElementSyntax existing))
{
return(comment.InsertBefore(existing, summary));
}
return(comment.WithContent(comment.Content.Add(summary)));
}
/// <summary>
/// Add <paramref name="typeparam"/> element to <paramref name="comment"/>
/// Replace if a summary element exists.
/// If the comment is attached to a method the param element is inserted at the correct position.
/// </summary>
/// <param name="comment">The <see cref="DocumentationCommentTriviaSyntax"/>.</param>
/// <param name="typeparam"> The <see cref="XmlElementSyntax"/>.</param>
/// <returns><paramref name="comment"/> with <paramref name="typeparam"/>.</returns>
public static DocumentationCommentTriviaSyntax WithTypeParam(this DocumentationCommentTriviaSyntax comment, XmlElementSyntax typeparam)
{
if (comment is null)
{
throw new ArgumentNullException(nameof(comment));
}
if (typeparam.TryGetNameAttribute(out var attribute) &&
attribute.Identifier is { } identifierName)
{
if (comment.TryGetTypeParam(identifierName.Identifier.ValueText, out var old))
{
return(comment.ReplaceNode(old, typeparam));
}
if (TryGetPositionFromTypeParam(out var before, out var after))
{
if (after is { })
{
return(comment.InsertBefore(after, typeparam));
}
return(comment.InsertAfter(before, typeparam));
}
foreach (var node in comment.Content)
{
if (node is XmlElementSyntax e &&
(e.HasLocalName("param") ||
e.HasLocalName("returns") ||
e.HasLocalName("exception")))
{
return(comment.InsertBefore(e, typeparam));
}
}
return(comment.InsertAfter(comment.Content.OfType <XmlElementSyntax>().Last(), typeparam));
}
/// <summary>
/// Add <paramref name="typeparam"/> element to <paramref name="comment"/>
/// Replace if a summary element exists.
/// If the comment is attached to a method the param element is inserted at the correct position.
/// </summary>
/// <param name="comment">The <see cref="DocumentationCommentTriviaSyntax"/>.</param>
/// <param name="typeparam"> The <see cref="XmlElementSyntax"/>.</param>
/// <returns><paramref name="comment"/> with <paramref name="typeparam"/>.</returns>
public static DocumentationCommentTriviaSyntax WithTypeParam(this DocumentationCommentTriviaSyntax comment, XmlElementSyntax typeparam)
{
if (comment is null)
{
throw new ArgumentNullException(nameof(comment));
}
if (typeparam.TryGetNameAttribute(out var attribute) &&
attribute.Identifier is IdentifierNameSyntax identifierName)
{
if (comment.TryGetTypeParam(identifierName.Identifier.ValueText, out var old))
{
return(comment.ReplaceNode(old, typeparam));
}
if (TryGetPositionFromTypeParam(out var before, out var after))
{
if (after != null)
{
return(comment.InsertBefore(after, typeparam));
}
return(comment.InsertAfter(before, typeparam));
}
foreach (var node in comment.Content)
{
if (node is XmlElementSyntax e &&
(e.HasLocalName("param") ||
e.HasLocalName("returns") ||
e.HasLocalName("exception")))
{
return(comment.InsertBefore(e, typeparam));
}
}
return(comment.InsertAfter(comment.Content.OfType <XmlElementSyntax>().Last(), typeparam));
}
throw new ArgumentException("Element does not have a name attribute.", nameof(typeparam));
bool TryGetPositionFromTypeParam(out XmlElementSyntax before, out XmlElementSyntax after)
{
before = null !;
after = null !;
if (comment.TryFirstAncestor(out MemberDeclarationSyntax? member) &&
TryGetTypeParameterList(member, out var typeParameterList) &&
typeParameterList.Parameters.TrySingle(x => x.Identifier.ValueText == identifierName.Identifier.ValueText, out var parameter) &&
typeParameterList.Parameters.IndexOf(parameter) is var ordinal &&
ordinal >= 0)
{
foreach (var node in comment.Content)
{
if (node is XmlElementSyntax e &&
e.HasLocalName("typeparam") &&
e.TryGetNameAttribute(out var nameAttribute) &&
typeParameterList.Parameters.TrySingle(x => x.Identifier.ValueText == nameAttribute.Identifier.Identifier.ValueText, out var other))
{
before = e;
if (ordinal < typeParameterList.Parameters.IndexOf(other))
{
after = e;
return(true);
}
}
}
}
return(before != null);