private static SyntaxTokenList AddAsyncModifierWithCorrectedTrivia(SyntaxTokenList modifiers, ref TypeSyntax newReturnType)
{
if (modifiers.Any())
{
return(modifiers.Add(s_asyncToken));
}
// Move the leading trivia from the return type to the new modifiers list.
SyntaxTokenList result = SyntaxFactory.TokenList(s_asyncToken.WithLeadingTrivia(newReturnType.GetLeadingTrivia()));
newReturnType = newReturnType.WithoutLeadingTrivia();
return(result);
}
private static TypeSyntax WrapInEnumerable(TypeSyntax type)
{
// very rough heuristic, if we have something like object[] make it IEnumerable<object[]>
// as required by xunit. But if the data type is already enumerable, like object[][]
// or IList<IList<object>> don't touch it
if (type.ToString() == "IEnumerable<object[]>" ||
type.ToString().EndsWith("[][]") ||
type.ToString().Count(c => c == '<') >= 2)
{
return(type.WithoutLeadingTrivia());
}
return(ParseTypeName($"IEnumerable<{type}>").WithTrailingTrivia(Space));
}
public static PropertyDeclarationSyntax InsertModifier(PropertyDeclarationSyntax propertyDeclaration, SyntaxToken modifier, IModifierComparer comparer)
{
if (propertyDeclaration == null)
{
throw new ArgumentNullException(nameof(propertyDeclaration));
}
SyntaxTokenList modifiers = propertyDeclaration.Modifiers;
if (!modifiers.Any())
{
TypeSyntax type = propertyDeclaration.Type;
return(propertyDeclaration
.WithType(type.WithoutLeadingTrivia())
.WithModifiers(TokenList(modifier.WithLeadingTrivia(type.GetLeadingTrivia()))));
}
return(propertyDeclaration.WithModifiers(modifiers.InsertModifier(modifier, comparer)));
}
public static OperatorDeclarationSyntax InsertModifier(OperatorDeclarationSyntax operatorDeclaration, SyntaxToken modifier, IModifierComparer comparer)
{
if (operatorDeclaration == null)
{
throw new ArgumentNullException(nameof(operatorDeclaration));
}
SyntaxTokenList modifiers = operatorDeclaration.Modifiers;
if (!modifiers.Any())
{
TypeSyntax returnType = operatorDeclaration.ReturnType;
return(operatorDeclaration
.WithReturnType(returnType.WithoutLeadingTrivia())
.WithModifiers(TokenList(modifier.WithLeadingTrivia(returnType.GetLeadingTrivia()))));
}
return(operatorDeclaration.WithModifiers(modifiers.InsertModifier(modifier, comparer)));
}
public static FieldDeclarationSyntax InsertModifier(FieldDeclarationSyntax fieldDeclaration, SyntaxToken modifier, IModifierComparer comparer)
{
if (fieldDeclaration == null)
{
throw new ArgumentNullException(nameof(fieldDeclaration));
}
SyntaxTokenList modifiers = fieldDeclaration.Modifiers;
if (!modifiers.Any())
{
TypeSyntax type = fieldDeclaration.Declaration?.Type;
return(fieldDeclaration
.ReplaceNode(type, type.WithoutLeadingTrivia())
.WithModifiers(TokenList(modifier.WithLeadingTrivia(type.GetLeadingTrivia()))));
}
return(fieldDeclaration.WithModifiers(modifiers.InsertModifier(modifier, comparer)));
}
internal override Task <Document> GetUpdatedDocumentAsync(
Document document, SemanticModel model, SyntaxNode root,
SyntaxNode nodeToFix, string diagnosticId, CancellationToken cancellationToken)
{
ArrayTypeSyntax arrayType = GetArrayType(nodeToFix);
if (arrayType != null)
{
TypeSyntax elementType = arrayType.ElementType.WithoutLeadingTrivia().WithoutTrailingTrivia();
if (arrayType.RankSpecifiers.Count > 1)
{
elementType = SyntaxFactory.ArrayType(elementType, SyntaxFactory.List(arrayType.RankSpecifiers.Skip(1)));
}
InvocationExpressionSyntax syntax = InvokeStaticGenericParameterlessMethod(
model.Compilation.GetTypeByMetadataName("System.Array"),
EmptyArrayDiagnosticAnalyzer.ArrayEmptyMethodName,
elementType.WithoutLeadingTrivia().WithoutTrailingTrivia());
if (nodeToFix.HasLeadingTrivia)
{
syntax = syntax.WithLeadingTrivia(nodeToFix.GetLeadingTrivia());
}
if (nodeToFix.HasTrailingTrivia)
{
syntax = syntax.WithTrailingTrivia(nodeToFix.GetTrailingTrivia());
}
if (syntax != null)
{
root = root.ReplaceNode(nodeToFix, syntax);
document = document.WithSyntaxRoot(root);
}
}
return(Task.FromResult(document));
}