private static void Handle(SyntaxNodeAnalysisContext context)
{
if (!context.IsExcludedFromAnalysis() &&
!context.ContainingSymbol.IsStatic &&
context.ContainingSymbol is IPropertySymbol property &&
property.ContainingType.IsAssignableTo(KnownSymbols.DependencyObject, context.Compilation) &&
context.Node is PropertyDeclarationSyntax propertyDeclaration &&
PropertyDeclarationWalker.TryGetCalls(propertyDeclaration, out var getCall, out var setCall))
{
if (getCall is { } &&
private static void Handle(SyntaxNodeAnalysisContext context)
{
if (!context.IsExcludedFromAnalysis() &&
!context.ContainingSymbol.IsStatic &&
context.ContainingSymbol is IPropertySymbol property &&
property.ContainingType.IsAssignableTo(KnownSymbol.DependencyObject, context.Compilation) &&
context.Node is PropertyDeclarationSyntax propertyDeclaration &&
PropertyDeclarationWalker.TryGetCalls(propertyDeclaration, out var getCall, out var setCall))
{
if (setCall != null &&
propertyDeclaration.TryGetSetter(out var setter) &&
setter.Body != null &&
setter.Body.Statements.TryFirst(x => !x.Contains(setCall), out var statement))
{
context.ReportDiagnostic(Diagnostic.Create(WPF0036AvoidSideEffectsInClrAccessors.Descriptor, statement.GetLocation()));
}
if (getCall != null &&
propertyDeclaration.TryGetGetter(out var getter) &&
getter.Body != null &&
getter.Body.Statements.TryFirst(x => !x.Contains(getCall), out statement))
{
context.ReportDiagnostic(Diagnostic.Create(WPF0036AvoidSideEffectsInClrAccessors.Descriptor, statement.GetLocation()));
}
if (getCall.TryGetArgumentAtIndex(0, out var getArg) &&
getArg.Expression is IdentifierNameSyntax getIdentifier &&
setCall.TryGetArgumentAtIndex(0, out var setArg) &&
setArg.Expression is IdentifierNameSyntax setIdentifier &&
getIdentifier.Identifier.ValueText != setIdentifier.Identifier.ValueText &&
!setIdentifier.Identifier.ValueText.IsParts(getIdentifier.Identifier.ValueText, "Key"))
{
context.ReportDiagnostic(
Diagnostic.Create(
WPF0032ClrPropertyGetAndSetSameDependencyProperty.Descriptor,
propertyDeclaration.GetLocation(),
context.ContainingSymbol.Name));
}
if (setCall.TryGetMethodName(out var setCallName) &&
setCallName != "SetValue")
{
//// ReSharper disable once PossibleNullReferenceException
context.ReportDiagnostic(
Diagnostic.Create(
WPF0035ClrPropertyUseSetValueInSetter.Descriptor,
setCall.GetLocation(),
context.ContainingSymbol.Name));
}
if (ClrProperty.TryGetRegisterField(propertyDeclaration, context.SemanticModel, context.CancellationToken, out var fieldOrProperty))
{
if (DependencyProperty.TryGetRegisteredName(fieldOrProperty, context.SemanticModel, context.CancellationToken, out var registeredName) &&
registeredName != property.Name)
{
context.ReportDiagnostic(
Diagnostic.Create(
WPF0003ClrPropertyShouldMatchRegisteredName.Descriptor,
propertyDeclaration.Identifier.GetLocation(),
ImmutableDictionary <string, string> .Empty.Add("ExpectedName", registeredName),
property.Name,
registeredName));
}
if (DependencyProperty.TryGetRegisteredType(fieldOrProperty, context.SemanticModel, context.CancellationToken, out var registeredType) &&
!registeredType.Equals(property.Type))
{
context.ReportDiagnostic(
Diagnostic.Create(
WPF0012ClrPropertyShouldMatchRegisteredType.Descriptor,
propertyDeclaration.Type.GetLocation(),
ImmutableDictionary <string, string> .Empty.Add(nameof(TypeSyntax), registeredType.ToMinimalDisplayString(context.SemanticModel, context.Node.SpanStart)),
property,
registeredType));
}
}
}
}
