public void UpdatePresentationControllerConstructor()
{
ConstructorDeclarationSyntax constructor = TestHelpers.GetConstructors(ast).FirstOrDefault();
// if we false negative on whitespace it'll be here, but I think that'll be a rare enough issue to not hurt performance running multiple passes or regex
var methodArguments = constructor.ParameterList.Parameters.FirstOrDefault(p => p.Type.ToString().Contains("ILogger<PresentationsController>"));
Assert.True(methodArguments != null, "`PresentationsController`'s constructor should accept a third parameter of type `ILogger<PresentationsController>` with the name `logger`.");
var setLogger = constructor.DescendantNodes().OfType <AssignmentExpressionSyntax>().FirstOrDefault(a => a.ToString().Contains("_logger"));
Assert.True(setLogger != null, "`PresentationsController`'s constructor should set `_logger` to the provided `logger` parameter.");
}
public static IEnumerable <ClassMethodInfo> GetCallingMethods(ConstructorDeclarationSyntax constructorBlock, SemanticModel model,
string thisNameSpace, string thisClassName)
{
var calling = from node in constructorBlock.DescendantNodes()
where node is InvocationExpressionSyntax ||
node is ObjectCreationExpressionSyntax ||
node is IdentifierNameSyntax
select node;
return(GetCallingMethods(calling, model, thisNameSpace, thisClassName));
}
static (ConstructorSyntaxLink, bool IsCompleted) _StartingFromRec(ConstructorDeclarationSyntax ctorDeclarationSyntax, ClassDeclarationSyntax owingType, SemanticModel semanticModel)
{
var syntaxTree = ctorDeclarationSyntax.SyntaxTree;
var nextCtorPath = (ConstructorInitializerSyntax)ctorDeclarationSyntax
.DescendantNodes()
.Where(x => x.Kind() == SyntaxKind.BaseConstructorInitializer || x.Kind() == SyntaxKind.ThisConstructorInitializer)
.SingleOrDefault();
if (nextCtorPath == null)
{
return(_CreateFinalLink(owingType, ctorDeclarationSyntax), IsCompleted : true);
}
switch (nextCtorPath.Kind())
{
case SyntaxKind.ThisConstructorInitializer:
{
var nextCtor = _GetConstructor(owingType, nextCtorPath, semanticModel);
if (!nextCtor.Exists)
{
var incompleteLink = _CreateIncompleteIntermediateLink(owingClass: owingType, thisCtorDeclarationSyntax: ctorDeclarationSyntax, pathToNextCtor: nextCtorPath);
return(incompleteLink, IsCompleted : false);
}
var(nextLink, isComplete) = _StartingFromRec(nextCtor.Value, owingType, semanticModel: semanticModel);
var link = _CreateIntermediateLink(nextLink, owingClass: owingType, thisCtorDeclarationSyntax: ctorDeclarationSyntax, pathToNextCtor: nextCtorPath);
return(link, isComplete);
}
case SyntaxKind.BaseConstructorInitializer:
{
var baseTypeSyntax = SyntaxOperations.GetBaseTypeOf(owingType, syntaxTree, semanticModel).Value;
var nextCtor = _GetConstructor(baseTypeSyntax, nextCtorPath, semanticModel);
if (!nextCtor.Exists)
{
var incompleteLink = _CreateIncompleteIntermediateLink(owingClass: owingType, thisCtorDeclarationSyntax: ctorDeclarationSyntax, pathToNextCtor: nextCtorPath);
return(incompleteLink, IsCompleted : false);
}
var(nextLink, isCompleted) = _StartingFromRec(nextCtor.Value, owingType: baseTypeSyntax, semanticModel: semanticModel);
var link = _CreateIntermediateLink(nextLink, owingClass: owingType, thisCtorDeclarationSyntax: ctorDeclarationSyntax, pathToNextCtor: nextCtorPath);
return(link, isCompleted);
}
default:
throw NotPreparedForThatCase.CannotHappenException;
}
}
/// <summary>
/// IsInitializeComponentInConstructor
/// </summary>
/// <param name="context"></param>
/// <param name="constructor"></param>
/// <returns></returns>
private int IsInitializeComponentInConstructor(SyntaxNodeAnalysisContext context, ConstructorDeclarationSyntax constructor)
{
int count = 0;
foreach (InvocationExpressionSyntax invocation in constructor.DescendantNodes().OfType <InvocationExpressionSyntax>())
{
IdentifierNameSyntax name = invocation.Expression as IdentifierNameSyntax;
if (name == null)
{
continue;
}
if (string.Equals(@"InitializeComponent", name.Identifier.ValueText))
{
count++;
}
}
return(count);
}
private static bool CheckIfAlreadyInitialized(SemanticModel model, ParameterSyntax parameter,
ConstructorDeclarationSyntax constructor, CancellationToken cancellationToken)
{
var parameterName = parameter.Identifier.ValueText;
var assignments = (constructor.DescendantNodes().OfType <AssignmentExpressionSyntax>()
.Where(exp => exp.Right.DescendantTokens().Any(token => token.ValueText == parameterName))).ToList();
if (!assignments.Any())
{
return(false);
}
var currentType = model.GetDeclaredSymbol(constructor.Parent, cancellationToken) as INamedTypeSymbol;
return(assignments.Any(assignment =>
{
var targetType = model.GetSymbolInfo(assignment.Left, cancellationToken).Symbol?.ContainingType;
return currentType == targetType;
}));
}
private static ParameterSyntax FindExistingParameter(SemanticModel model, IFieldSymbol fieldSymbol,
ConstructorDeclarationSyntax constructor, CancellationToken cancellationToken)
{
foreach (var parameter in constructor.ParameterList.Parameters)
{
var parameterSymbol = model.GetDeclaredSymbol(parameter, cancellationToken) as IParameterSymbol;
if (fieldSymbol != null && parameterSymbol != null && fieldSymbol.Type == parameterSymbol.Type)
{
var assignments = constructor.DescendantNodes().OfType <AssignmentExpressionSyntax>().ToList();
foreach (var assignment in assignments)
{
var rightSymbol = model.GetSymbolInfo(assignment.Right, cancellationToken).Symbol;
if (rightSymbol != null && rightSymbol == parameterSymbol)
{
return(null);
}
}
return(parameter);
}
}
return(null);
}
/// <summary>
/// Get summary.
/// </summary>
/// <param name="theSyntaxNode">The syntax node to add the summary.</param>
/// <returns>The syntax list.</returns>
private static DocumentationCommentTriviaSyntax GetSummary(ConstructorDeclarationSyntax theSyntaxNode)
{
string summaryComment;
if (theSyntaxNode.Modifiers.Any(SyntaxKind.StaticKeyword))
{
summaryComment = $" Initializes static members of the <see cref=\"{theSyntaxNode.Identifier.ValueText}\"/> class.";
}
else
{
summaryComment = $" Initializes a new instance of the <see cref=\"{theSyntaxNode.Identifier.ValueText}\"/> class.";
}
var summaryStart = XmlElementStartTag(XmlName(Identifier(Constants.Summary)))
.WithLessThanToken(Token(SyntaxKind.LessThanToken))
.WithGreaterThanToken(Token(SyntaxKind.GreaterThanToken)).NormalizeWhitespace();
var summaryEnd = XmlElementEndTag(XmlName(Identifier(Constants.Summary))).NormalizeWhitespace()
.WithLessThanSlashToken(Token(SyntaxKind.LessThanSlashToken))
.WithGreaterThanToken(Token(SyntaxKind.GreaterThanToken));
var summaryText = SingletonList <XmlNodeSyntax>(
XmlText().NormalizeWhitespace()
.WithTextTokens(
TokenList(
XmlTextNewLine(TriviaList(), Environment.NewLine, Environment.NewLine, TriviaList()).NormalizeWhitespace(),
XmlTextLiteral(
TriviaList(DocumentationCommentExterior("///")),
summaryComment,
summaryComment,
TriviaList()).NormalizeWhitespace(),
XmlTextNewLine(TriviaList(), Environment.NewLine, Environment.NewLine, TriviaList()).NormalizeWhitespace(),
XmlTextLiteral(
TriviaList(DocumentationCommentExterior("///")),
" ",
" ",
TriviaList()))).NormalizeWhitespace());
var xmlComment = XmlText()
.WithTextTokens(
TokenList(
XmlTextLiteral(
TriviaList(DocumentationCommentExterior("///")),
" ",
" ",
TriviaList()))).NormalizeWhitespace();
var newLine = XmlText().WithTextTokens(TokenList(XmlTextNewLine(TriviaList(), Environment.NewLine, Environment.NewLine, TriviaList()))).NormalizeWhitespace();
var summaryElement = XmlElement(summaryStart, summaryEnd).WithContent(summaryText);
var list = List(new XmlNodeSyntax[] { xmlComment, summaryElement, newLine });
// Add parameter comments
if (theSyntaxNode.ParameterList.Parameters.Any())
{
foreach (var parameter in theSyntaxNode.ParameterList.Parameters)
{
list = list.AddRange(
List(
new XmlNodeSyntax[]
{
xmlComment,
XmlElement(
XmlElementStartTag(XmlName(Identifier("param")))
.WithAttributes(
SingletonList <XmlAttributeSyntax>(
XmlNameAttribute(
XmlName(Identifier(TriviaList(Space), "name", TriviaList())),
Token(SyntaxKind.DoubleQuoteToken),
IdentifierName(parameter.Identifier.ValueText),
Token(SyntaxKind.DoubleQuoteToken)))),
XmlElementEndTag(XmlName(Identifier("param"))))
.WithContent(
SingletonList <XmlNodeSyntax>(
XmlText()
.WithTextTokens(
TokenList(
XmlTextLiteral(
TriviaList(),
Convert.Parameter(parameter.Identifier.ValueText, parameter.Type.ToString()),
"comment",
TriviaList()))))),
newLine
}));
}
}
// Add exceptions comments
var throws = theSyntaxNode.DescendantNodes().OfType <ThrowStatementSyntax>();
foreach (var syntax in throws)
{
if (syntax.ChildNodes().OfType <ObjectCreationExpressionSyntax>().Any())
{
var identifier = syntax.DescendantNodes().OfType <IdentifierNameSyntax>().FirstOrDefault();
var argumentList = syntax.DescendantNodes().OfType <ArgumentListSyntax>().FirstOrDefault();
var parms = argumentList.DescendantTokens().Where(x => x.IsKind(SyntaxKind.StringLiteralToken)).ToList();
var parmText = string.Empty;
if (parms.Any())
{
parmText = parms.Last().ValueText;
}
list = list.AddRange(
List(
new XmlNodeSyntax[]
{
xmlComment,
XmlElement(
XmlElementStartTag(XmlName(Identifier("exception")))
.WithAttributes(
SingletonList <XmlAttributeSyntax>(
XmlNameAttribute(
XmlName(Identifier(TriviaList(Space), "cref", TriviaList())),
Token(SyntaxKind.DoubleQuoteToken),
IdentifierName(identifier.Identifier.ValueText),
Token(SyntaxKind.DoubleQuoteToken)))),
XmlElementEndTag(XmlName(Identifier("exception"))))
.WithContent(
SingletonList <XmlNodeSyntax>(
XmlText()
.WithTextTokens(
TokenList(
XmlTextLiteral(
TriviaList(),
parmText,
"comment",
TriviaList()))))),
newLine
}));
}
}
return(DocumentationCommentTrivia(SyntaxKind.SingleLineDocumentationCommentTrivia, list));
}
private static void _Assert_IsIntermadiateLink(ConstructorSyntaxLink link, ClassDeclarationSyntax classDeclarationSyntax, ConstructorDeclarationSyntax ctorDeclarationSyntax)
{
Assert.AreEqual(link.CtorSyntax, ctorDeclarationSyntax);
Assert.AreEqual(link.OwingClassSyntax, classDeclarationSyntax);
Assert.AreEqual(link.PathToNextCtorSyntax.Value, ctorDeclarationSyntax.DescendantNodes().OfType <ConstructorInitializerSyntax>().Single());
}