public void HandleMethodDeclaration(SyntaxNodeAnalysisContext context)
{
if (context.GetDocumentationMode() != DocumentationMode.Diagnose)
{
return;
}
MethodDeclarationSyntax declaration = (MethodDeclarationSyntax)context.Node;
if (!declaration.Modifiers.Any(SyntaxKind.PartialKeyword))
{
return;
}
Accessibility declaredAccessibility = declaration.GetDeclaredAccessibility(context.SemanticModel, context.CancellationToken);
Accessibility effectiveAccessibility = declaration.GetEffectiveAccessibility(context.SemanticModel, context.CancellationToken);
if (this.NeedsComment(declaration.Kind(), declaration.Parent.Kind(), declaredAccessibility, effectiveAccessibility))
{
if (!XmlCommentHelper.HasDocumentation(declaration))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, declaration.Identifier.GetLocation()));
}
}
}
public static void HandleMethodDeclaration(SyntaxNodeAnalysisContext context, StyleCopSettings settings)
{
if (context.GetDocumentationMode() == DocumentationMode.None)
{
return;
}
MethodDeclarationSyntax declaration = (MethodDeclarationSyntax)context.Node;
if (!declaration.Modifiers.Any(SyntaxKind.PartialKeyword))
{
return;
}
Accessibility declaredAccessibility = declaration.GetDeclaredAccessibility(context.SemanticModel, context.CancellationToken);
Accessibility effectiveAccessibility = declaration.GetEffectiveAccessibility(context.SemanticModel, context.CancellationToken);
if (SA1600ElementsMustBeDocumented.NeedsComment(settings.DocumentationRules, declaration.Kind(), declaration.Parent.Kind(), declaredAccessibility, effectiveAccessibility))
{
if (!XmlCommentHelper.HasDocumentation(declaration))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, declaration.Identifier.GetLocation()));
}
}
}
private static void HandleIncludedDocumentation(SyntaxNodeAnalysisContext context, XmlEmptyElementSyntax elementSyntax, Location elementLocation)
{
var memberDeclaration = elementSyntax.FirstAncestorOrSelf <MemberDeclarationSyntax>();
if (memberDeclaration == null)
{
return;
}
var declaration = context.SemanticModel.GetDeclaredSymbol(memberDeclaration, context.CancellationToken);
if (declaration == null)
{
return;
}
var rawDocumentation = declaration.GetDocumentationCommentXml(expandIncludes: true, cancellationToken: context.CancellationToken);
var completeDocumentation = XElement.Parse(rawDocumentation, LoadOptions.None);
if (completeDocumentation.Nodes().OfType <XElement>().Any(element => element.Name == XmlCommentHelper.InheritdocXmlTag))
{
// Ignore nodes with an <inheritdoc/> tag in the included XML.
return;
}
var emptyElements = completeDocumentation.Nodes()
.OfType <XElement>()
.Where(element => ElementsToCheck.Contains(element.Name.ToString()))
.Where(x => XmlCommentHelper.IsConsideredEmpty(x));
foreach (var emptyElement in emptyElements)
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, elementLocation, emptyElement.Name.ToString()));
}
}
/// <inheritdoc/>
protected override void HandleXmlElement(SyntaxNodeAnalysisContext context, bool needsComment, DocumentationCommentTriviaSyntax documentation, XmlNodeSyntax syntax, XElement completeDocumentation, Location[] diagnosticLocations)
{
if (syntax == null)
{
return;
}
if (completeDocumentation != null)
{
XElement summaryNode = completeDocumentation.Nodes().OfType <XElement>().FirstOrDefault(element => element.Name == XmlCommentHelper.SummaryXmlTag);
if (summaryNode == null)
{
// Handled by SA1604
return;
}
if (!XmlCommentHelper.IsConsideredEmpty(summaryNode))
{
return;
}
}
else
{
if (!XmlCommentHelper.IsConsideredEmpty(syntax))
{
return;
}
}
foreach (var location in diagnosticLocations)
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, location));
}
}
private static void HandleDocumentation(SyntaxNodeAnalysisContext context)
{
var documentationTrivia = context.Node as DocumentationCommentTriviaSyntax;
if (documentationTrivia != null)
{
var summaryElement = documentationTrivia.Content.GetFirstXmlElement(XmlCommentHelper.SummaryXmlTag) as XmlElementSyntax;
if (summaryElement != null)
{
var textElement = summaryElement.Content.FirstOrDefault() as XmlTextSyntax;
if (textElement != null)
{
string text = XmlCommentHelper.GetText(textElement, true);
if (!string.IsNullOrEmpty(text))
{
if (text.TrimStart().StartsWith(DefaultText, StringComparison.Ordinal))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, summaryElement.GetLocation()));
}
}
}
}
}
}
private static bool IsIgnoredElement(XmlNodeSyntax node)
{
if (node == null)
{
return(true);
}
return(XmlCommentHelper.IsConsideredEmpty(node));
}
private static async Task Exceptions(
StreamWriter writer,
Assembly assembly,
MethodInfo method,
XDocument xmlComments)
{
var exceptions = XmlCommentHelper.MethodElement(xmlComments, method)?.Descendants("exception").ToList();
if (exceptions != null && exceptions.Count > 0)
{
await writer.WriteLineAsync("### Exceptions");
foreach (var exception in exceptions)
{
var exceptionTypeName = exception.Attributes("cref").FirstOrDefault()?.Value;
if (exceptionTypeName != null)
{
var exceptionType = TypeHelper.GetType(
assembly,
exceptionTypeName.Substring(exceptionTypeName.IndexOf(':', StringComparison.Ordinal) + 1));
if (exceptionType != null)
{
await TypeHelper.FullName(writer, exceptionType, t => t.Name, "<", ">");
}
else
{
var start = exceptionTypeName.LastIndexOf('.');
if (start >= 0)
{
exceptionTypeName = exceptionTypeName.Substring(start + 1);
}
var end = exceptionTypeName.IndexOf('`', StringComparison.Ordinal);
if (end >= 0)
{
exceptionTypeName = exceptionTypeName.Substring(0, end);
}
await writer.WriteAsync(exceptionTypeName);
}
await writer.WriteLineAsync(" ");
await XmlCommentHelper.WriteValue(writer, exception);
await writer.WriteLineAsync();
await writer.WriteLineAsync();
}
}
}
}
/// <inheritdoc/>
protected override void HandleXmlElement(SyntaxNodeAnalysisContext context, IEnumerable <XmlNodeSyntax> syntaxList, params Location[] diagnosticLocations)
{
var node = context.Node;
var identifier = GetIdentifier(node);
bool supportedIdentifier = identifier != null;
if (!supportedIdentifier)
{
return;
}
var identifierLocation = identifier.Value.GetLocation();
var parameterList = GetParameters(node)?.ToImmutableArray();
bool hasNoParameters = !parameterList?.Any() ?? false;
if (hasNoParameters)
{
return;
}
var parentParameters = parameterList.Value;
var index = 0;
foreach (var syntax in syntaxList)
{
var nameAttributeSyntax = XmlCommentHelper.GetFirstAttributeOrDefault <XmlNameAttributeSyntax>(syntax);
var nameAttributeText = nameAttributeSyntax?.Identifier?.Identifier.ValueText;
var location = nameAttributeSyntax?.Identifier?.Identifier.GetLocation();
// Make sure we ignore violations that should be reported by SA1613 instead.
if (string.IsNullOrWhiteSpace(nameAttributeText))
{
return;
}
var parentParameter = parentParameters.FirstOrDefault(s => s.Identifier.Text == nameAttributeText);
if (parentParameter == null)
{
context.ReportDiagnostic(Diagnostic.Create(MissingParameterDescriptor, location ?? identifierLocation, nameAttributeText));
}
else if (parentParameters.Length <= index || parentParameters[index] != parentParameter)
{
context.ReportDiagnostic(
Diagnostic.Create(
OrderDescriptor,
location ?? identifierLocation,
nameAttributeText,
parentParameters.IndexOf(parentParameter) + 1));
}
index++;
}
}
/// <inheritdoc/>
protected override void HandleXmlElement(SyntaxNodeAnalysisContext context, XmlNodeSyntax syntax, params Location[] diagnosticLocations)
{
if (syntax != null && XmlCommentHelper.IsConsideredEmpty(syntax))
{
foreach (var location in diagnosticLocations)
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, location));
}
}
}
private void HandleXmlElement(SyntaxNodeAnalysisContext context)
{
XmlElementSyntax emptyElement = context.Node as XmlElementSyntax;
var name = emptyElement?.StartTag?.Name;
if (string.Equals(name.ToString(), XmlCommentHelper.ReturnsXmlTag) && XmlCommentHelper.IsConsideredEmpty(emptyElement))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, emptyElement.GetLocation()));
}
}
private static void HandleXmlElement(SyntaxNodeAnalysisContext context)
{
XmlElementSyntax element = (XmlElementSyntax)context.Node;
var name = element.StartTag?.Name;
if (string.Equals(name.ToString(), XmlCommentHelper.TypeParamXmlTag) && XmlCommentHelper.IsConsideredEmpty(element))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, element.GetLocation()));
}
}
/// <summary>
/// Analyzes a <see cref="BaseMethodDeclarationSyntax"/> node. If it has a summary it is checked if the text starts with "[firstTextPart]<see cref="[className]"/>[secondTextPart]".
/// </summary>
/// <param name="context">The <see cref="SyntaxNodeAnalysisContext"/> of this analysis.</param>
/// <param name="firstTextPart">The first part of the standard text.</param>
/// <param name="secondTextPart">The second part of the standard text.</param>
/// <param name="reportDiagnostic">Whether or not a diagnostic should be reported.</param>
/// <returns>A <see cref="MatchResult"/> describing the result of the analysis.</returns>
protected MatchResult HandleDeclaration(SyntaxNodeAnalysisContext context, string firstTextPart, string secondTextPart, bool reportDiagnostic)
{
var declarationSyntax = context.Node as BaseMethodDeclarationSyntax;
if (declarationSyntax == null)
{
return(MatchResult.Unknown);
}
var documentationStructure = declarationSyntax.GetDocumentationCommentTriviaSyntax();
if (documentationStructure == null)
{
return(MatchResult.Unknown);
}
var summaryElement = documentationStructure.Content.GetFirstXmlElement(XmlCommentHelper.SummaryXmlTag) as XmlElementSyntax;
if (summaryElement == null)
{
return(MatchResult.Unknown);
}
// Check if the summary content could be a correct standard text
if (summaryElement.Content.Count >= 3)
{
// Standard text has the form <part1><see><part2>
var firstTextPartSyntax = summaryElement.Content[0] as XmlTextSyntax;
var classReferencePart = summaryElement.Content[1] as XmlEmptyElementSyntax;
var secondTextParSyntaxt = summaryElement.Content[2] as XmlTextSyntax;
if (firstTextPartSyntax != null && classReferencePart != null && secondTextParSyntaxt != null)
{
// Check text parts
var firstText = XmlCommentHelper.GetText(firstTextPartSyntax);
var secondText = XmlCommentHelper.GetText(secondTextParSyntaxt);
if (TextPartsMatch(firstTextPart, secondTextPart, firstTextPartSyntax, secondTextParSyntaxt) &&
this.SeeTagIsCorrect(context, classReferencePart, declarationSyntax))
{
// We found a correct standard text
return(MatchResult.FoundMatch);
}
}
}
if (reportDiagnostic)
{
context.ReportDiagnostic(Diagnostic.Create(this.DiagnosticDescriptor, summaryElement.GetLocation()));
}
// TODO: be more specific about the type of error when possible
return(MatchResult.None);
}
/// <inheritdoc/>
protected override void HandleXmlElement(SyntaxNodeAnalysisContext context, IEnumerable <XmlNodeSyntax> syntaxList, params Location[] diagnosticLocations)
{
foreach (var syntax in syntaxList)
{
bool isEmpty = syntax is XmlEmptyElementSyntax || XmlCommentHelper.IsConsideredEmpty(syntax);
if (isEmpty)
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, syntax.GetLocation()));
}
}
}
private static void HandleXmlElement(SyntaxNodeAnalysisContext context)
{
var element = (XmlElementSyntax)context.Node;
var name = element.StartTag?.Name;
if (ElementsToCheck.Contains(name.ToString()) && XmlCommentHelper.IsConsideredEmpty(element))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, element.GetLocation(), name.ToString()));
}
}
private static void HandleElement(SyntaxNodeAnalysisContext context, XmlNodeSyntax element, XmlNameSyntax name, Location alternativeDiagnosticLocation)
{
if (string.Equals(name.ToString(), XmlCommentHelper.TypeParamXmlTag))
{
var nameAttribute = XmlCommentHelper.GetFirstAttributeOrDefault <XmlNameAttributeSyntax>(element);
if (string.IsNullOrWhiteSpace(nameAttribute?.Identifier?.Identifier.ValueText))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, nameAttribute?.GetLocation() ?? alternativeDiagnosticLocation));
}
}
}
private void HandleDestructorDeclaration(SyntaxNodeAnalysisContext context)
{
DestructorDeclarationSyntax declaration = context.Node as DestructorDeclarationSyntax;
if (declaration != null)
{
if (!XmlCommentHelper.HasDocumentation(declaration))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, declaration.Identifier.GetLocation()));
}
}
}
private void HandleConstructorDeclaration(SyntaxNodeAnalysisContext context)
{
ConstructorDeclarationSyntax declaration = context.Node as ConstructorDeclarationSyntax;
if (declaration != null && this.NeedsComment(declaration.Modifiers, SyntaxKind.PrivateKeyword))
{
if (!XmlCommentHelper.HasDocumentation(declaration))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, declaration.Identifier.GetLocation()));
}
}
}
private void HandleEnumMember(SyntaxNodeAnalysisContext context)
{
EnumMemberDeclarationSyntax enumMemberDeclaration = context.Node as EnumMemberDeclarationSyntax;
if (enumMemberDeclaration != null)
{
if (!XmlCommentHelper.HasDocumentation(enumMemberDeclaration))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, enumMemberDeclaration.Identifier.GetLocation()));
}
}
}
private static bool TextPartsMatch(string firstText, string secondText, XmlTextSyntax firstTextPart, XmlTextSyntax secondTextPart)
{
string firstTextPartText = XmlCommentHelper.GetText(firstTextPart, normalizeWhitespace: true);
if (firstText != firstTextPartText.TrimStart())
{
return(false);
}
string secondTextPartText = XmlCommentHelper.GetText(secondTextPart, normalizeWhitespace: true);
return(secondTextPartText.StartsWith(secondText, StringComparison.Ordinal));
}
private static void HandleElement(SyntaxNodeAnalysisContext context, XmlNodeSyntax element, XmlNameSyntax name, Location alternativeDiagnosticLocation)
{
if (string.Equals(name.ToString(), XmlCommentHelper.ParamTag))
{
var nameAttribute = XmlCommentHelper.GetFirstAttributeOrDefault <XmlNameAttributeSyntax>(element);
// Make sure we ignore violations that should be reported by SA1613 instead.
if (!string.IsNullOrWhiteSpace(nameAttribute?.Identifier?.Identifier.ValueText) && ParentElementHasParameter(element, nameAttribute.Identifier.Identifier.ValueText) == false)
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, nameAttribute?.Identifier?.GetLocation() ?? alternativeDiagnosticLocation));
}
}
}
private static async Task Returns(StreamWriter writer, MethodInfo method, XDocument xmlComments)
{
if (method.ReturnType.FullName != "System.Void")
{
await writer.WriteLineAsync("### Returns");
await TypeHelper.FullName(writer, method.ReturnType, t => t.Name, "<", ">");
await writer.WriteLineAsync(" ");
await writer.WriteLineAsync(XmlCommentHelper.Returns(xmlComments, method));
}
}
/// <inheritdoc/>
protected override void HandleXmlElement(SyntaxNodeAnalysisContext context, bool needsComment, IEnumerable <XmlNodeSyntax> syntaxList, params Location[] diagnosticLocations)
{
foreach (var syntax in syntaxList)
{
var nameParameter = XmlCommentHelper.GetFirstAttributeOrDefault <XmlNameAttributeSyntax>(syntax);
var parameterValue = nameParameter?.Identifier?.Identifier.ValueText;
if (string.IsNullOrWhiteSpace(parameterValue))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, nameParameter?.GetLocation() ?? syntax.GetLocation()));
}
}
}
private void HandleTypeDeclaration(SyntaxNodeAnalysisContext context)
{
BaseTypeDeclarationSyntax declaration = context.Node as BaseTypeDeclarationSyntax;
bool isNestedInClassOrStruct = this.IsNestedType(declaration);
if (declaration != null && this.NeedsComment(declaration.Modifiers, isNestedInClassOrStruct ? SyntaxKind.PrivateKeyword : SyntaxKind.InternalKeyword))
{
if (!XmlCommentHelper.HasDocumentation(declaration))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, declaration.Identifier.GetLocation()));
}
}
}
/// <inheritdoc/>
protected override void HandleCompleteDocumentation(SyntaxNodeAnalysisContext context, XElement completeDocumentation, params Location[] diagnosticLocations)
{
var returnsNodes = completeDocumentation.Nodes()
.OfType <XElement>()
.Where(n => n.Name == XmlCommentHelper.ReturnsXmlTag);
foreach (var node in returnsNodes)
{
if (XmlCommentHelper.IsConsideredEmpty(node))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, diagnosticLocations.First()));
}
}
}
private void HandleMethodDeclaration(SyntaxNodeAnalysisContext context)
{
MethodDeclarationSyntax methodDeclaration = context.Node as MethodDeclarationSyntax;
if (methodDeclaration != null)
{
if (methodDeclaration.Modifiers.Any(SyntaxKind.PartialKeyword))
{
if (!XmlCommentHelper.HasDocumentation(methodDeclaration))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, methodDeclaration.Identifier.GetLocation()));
}
}
}
}
private static async Task Properties(StreamWriter writer, Type type, XDocument xmlComments)
{
var properties = type.GetProperties().Where(TypeHelper.IgnoreDeclaringType).ToList();
if (properties.Count > 0)
{
await writer.WriteLineAsync("### Properties");
await writer.WriteLineAsync("| | |");
await writer.WriteLineAsync("|_|_|");
foreach (var property in properties.OrderBy(o => o.Name))
{
await writer.WriteAsync("[");
await writer.WriteAsync(property.Name);
await writer.WriteAsync("](");
await writer.WriteAsync(FileNameHelper.PropertyFileName(string.Empty, property));
await writer.WriteAsync(")|");
var summary = XmlCommentHelper.Property(xmlComments, property);
await writer.WriteAsync(summary);
if (property.DeclaringType != type)
{
if (summary.Length > 0)
{
await writer.WriteAsync("<br/>");
}
await writer.WriteAsync("(Inherited from ");
await writer.WriteAsync(property.DeclaringType?.Name);
await writer.WriteAsync(")");
}
await writer.WriteLineAsync();
}
}
await writer.WriteLineAsync();
}
/// <inheritdoc/>
protected override void HandleCompleteDocumentation(SyntaxNodeAnalysisContext context, bool needsComment, XElement completeDocumentation, params Location[] diagnosticLocations)
{
var xmlParamTags = completeDocumentation.Nodes()
.OfType <XElement>()
.Where(e => e.Name == XmlCommentHelper.ParamXmlTag);
foreach (var paramTag in xmlParamTags)
{
bool isEmpty = XmlCommentHelper.IsConsideredEmpty(paramTag);
if (isEmpty)
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, diagnosticLocations.First()));
}
}
}
/// <inheritdoc/>
protected override void HandleXmlElement(SyntaxNodeAnalysisContext context, StyleCopSettings settings, bool needsComment, IEnumerable <XmlNodeSyntax> syntaxList, params Location[] diagnosticLocations)
{
foreach (var syntax in syntaxList)
{
var summaryElement = syntax as XmlElementSyntax;
if (summaryElement?.Content.FirstOrDefault() is XmlTextSyntax textElement)
{
string text = XmlCommentHelper.GetText(textElement, true);
if (IsDefaultText(text))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, summaryElement.GetLocation()));
return;
}
}
}
}
private void HandleFieldDeclaration(SyntaxNodeAnalysisContext context)
{
FieldDeclarationSyntax declaration = context.Node as FieldDeclarationSyntax;
var variableDeclaration = declaration?.Declaration;
if (variableDeclaration != null && this.NeedsComment(declaration.Modifiers, SyntaxKind.PrivateKeyword))
{
if (!XmlCommentHelper.HasDocumentation(declaration))
{
var locations = variableDeclaration.Variables.Select(v => v.Identifier.GetLocation()).ToArray();
foreach (var location in locations)
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, location));
}
}
}
}
private static async Task Constructors(StreamWriter writer, Type type, XDocument xmlComments)
{
var constructors = type.GetConstructors();
if (constructors.Length > 0)
{
await writer.WriteLineAsync("### Constructors");
await writer.WriteLineAsync("| | |");
await writer.WriteLineAsync("|_|_|");
foreach (var constructor in constructors)
{
await writer.WriteAsync("[");
await TypeHelper.FullName(writer, type, t => t.Name, "<", ">");
await writer.WriteAsync("(");
var parameters = constructor.GetParameters();
if (parameters.Length > 0)
{
await TypeHelper.FullName(writer, parameters[0].ParameterType, t => t.Name, "<", ">");
for (var i = 1; i < parameters.Length; i++)
{
await writer.WriteAsync(", ");
await TypeHelper.FullName(writer, parameters[i].ParameterType, t => t.Name, "<", ">");
}
}
await writer.WriteAsync(")](");
await writer.WriteAsync(FileNameHelper.ConstructorFileName(string.Empty, type));
await writer.WriteAsync(")|");
await writer.WriteLineAsync(
XmlCommentHelper.Summary(XmlCommentHelper.MethodElement(xmlComments, constructor)));
}
}
}