コード例 #1
0
        protected override void Run(IDeclaration declaration, ElementProblemAnalyzerData data, IHighlightingConsumer consumer)
        {
            var declaredElement = declaration.DeclaredElement;
            var attributesSet   = declaredElement as IAttributesSet;

            var hasOveriddenImplicitNullability = false;

            if (attributesSet != null)
            {
                Assertion.Assert(declaredElement != null, "declaredElement != null");

                var attributeInstances = attributesSet.GetAttributeInstances(inherit: false);

                switch (declaration)
                {
                case IParameterDeclaration parameterDeclaration:
                    var parameter = parameterDeclaration.DeclaredElement.NotNull();
                    CheckForNotNullOnImplicitCanBeNull(consumer, parameter, attributeInstances, declaration);
                    CheckForParameterSuperMemberConflicts(consumer, parameter, attributeInstances, declaration);
                    break;

                case IMethodDeclaration methodDeclaration:
                    var method = methodDeclaration.DeclaredElement.NotNull();
                    CheckForNotNullOnImplicitCanBeNull(consumer, method, attributeInstances, methodDeclaration.NameIdentifier);
                    CheckForMethodSuperMemberConflicts(consumer, method, attributeInstances, methodDeclaration.NameIdentifier);
                    break;

                case IOperatorDeclaration operatorDeclaration:
                    var operatorKeyword = operatorDeclaration.OperatorKeyword;
                    CheckForNotNullOnImplicitCanBeNull(consumer, declaredElement, attributeInstances, operatorKeyword);
                    break;

                case IDelegateDeclaration delegateDeclaration:
                    var delegateName = delegateDeclaration.NameIdentifier;
                    CheckForNotNullOnImplicitCanBeNull(consumer, declaredElement, attributeInstances, delegateName);
                    break;

                case IFieldDeclaration fieldDeclaration:
                    var fieldName = fieldDeclaration.NameIdentifier;
                    CheckForNotNullOnImplicitCanBeNull(consumer, declaredElement, attributeInstances, fieldName);
                    break;

                case IPropertyDeclaration propertyDeclaration:
                    var property     = propertyDeclaration.DeclaredElement.NotNull();
                    var propertyName = propertyDeclaration.NameIdentifier;
                    CheckForNotNullOnImplicitCanBeNull(consumer, declaredElement, attributeInstances, propertyName);
                    CheckForPropertySuperMemberConflicts(consumer, property, attributeInstances, propertyName);
                    break;

                case IIndexerDeclaration indexerDeclaration:
                    var indexerProperty    = indexerDeclaration.DeclaredElement.NotNull();
                    var indexerThisKeyword = indexerDeclaration.ThisKeyword;
                    CheckForNotNullOnImplicitCanBeNull(consumer, declaredElement, attributeInstances, indexerThisKeyword);
                    CheckForPropertySuperMemberConflicts(consumer, indexerProperty, attributeInstances, indexerThisKeyword);
                    break;
                }

                hasOveriddenImplicitNullability |=
                    _annotationAttributesChecker.ContainsAnyExplicitNullabilityAttributes(attributeInstances) &&
                    _implicitNullabilityProvider.AnalyzeDeclaredElement(declaredElement) != null;

                hasOveriddenImplicitNullability |=
                    _annotationAttributesChecker.ContainsAnyExplicitItemNullabilityAttributes(attributeInstances) &&
                    _implicitNullabilityProvider.AnalyzeDeclaredElementContainerElement(declaredElement) != null;
            }

            DelegateToIncorrectNullableAttributeUsageAnalyzer(declaration, data, consumer, hasOveriddenImplicitNullability);
        }
コード例 #2
0
 public CodeAnnotationNullableValue?GetContainerElementNullableAttribute([CanBeNull] IDeclaredElement element)
 {
     return(_implicitNullabilityProvider.AnalyzeDeclaredElementContainerElement(element));
 }