private static void HandleArgument(SyntaxNodeAnalysisContext context, ArgumentSyntax argument)
{
if (argument.TryGetTypeofValue(context.SemanticModel, context.CancellationToken, out var ownerType) &&
!ownerType.IsAssignableTo(KnownSymbols.DependencyObject, context.Compilation))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptors.WPF0015RegisteredOwnerTypeMustBeDependencyObject, argument.GetLocation(), KnownSymbols.DependencyProperty.RegisterAttached.Name));
}
}
private static void HandleArgument(SyntaxNodeAnalysisContext context, ArgumentSyntax argument)
{
if (argument.TryGetTypeofValue(context.SemanticModel, context.CancellationToken, out var ownerType) &&
!ownerType.Equals(context.ContainingSymbol.ContainingType))
{
context.ReportDiagnostic(Diagnostic.Create(Descriptors.WPF0011ContainingTypeShouldBeRegisteredOwner, argument.GetLocation(), context.ContainingSymbol.ContainingType));
}
}
internal static bool TryGetRegisteredType(FieldOrProperty fieldOrProperty, SemanticModel semanticModel, CancellationToken cancellationToken, out ArgumentSyntax typeArg, out ITypeSymbol result)
{
typeArg = null;
result = null;
if (fieldOrProperty.TryGetAssignedValue(cancellationToken, out var value) &&
value is InvocationExpressionSyntax invocation)
{
if (TryGetRegisterCall(invocation, semanticModel, cancellationToken, out _) &&
invocation.TryGetArgumentAtIndex(3, out typeArg))
{
return(typeArg.TryGetTypeofValue(semanticModel, cancellationToken, out result));
}
}
return(false);
}
