public override void VisitEventReference(IEventReferenceOperation operation)
{
var member = operation.Member;
var eventSymbol = operation.Event;
base.VisitEventReference(operation);
}
public override void VisitEventReference(IEventReferenceOperation operation)
{
Assert.Equal(OperationKind.EventReference, operation.Kind);
VisitMemberReference(operation);
Assert.Same(operation.Member, operation.Event);
}
private static string GetEventTargetName([NotNull] IEventReferenceOperation eventReference,
[NotNull] IMethodSymbol targetMethod)
{
return(eventReference.Instance != null
? GetInstanceEventTargetName(eventReference.Instance)
: GetStaticEventTargetName(eventReference, targetMethod));
}
private static string GetStaticEventTargetName([NotNull] IEventReferenceOperation eventReference,
[NotNull] IMethodSymbol targetMethod)
{
INamedTypeSymbol eventContainingType = eventReference.Event.ContainingType;
bool isEventLocal = eventContainingType.Equals(targetMethod.ContainingType);
return(isEventLocal ? string.Empty : eventContainingType.Name);
}
private static AbstractExpression ReadEventReference(IEventReferenceOperation op)
{
var context = CodeReaderContext.GetContextOrThrow();
return(new MemberExpression {
Target = ReadExpression(op.Instance),
Member = context.FindMemberOrThrow <EventMember>(op.Event)
});
}
private void AnalyzeOperation(OperationAnalysisContext context)
{
var symbol = context.Operation switch
{
IObjectCreationOperation creation => creation.Constructor,
IInvocationOperation invocation => invocation.TargetMethod,
IFieldReferenceOperation field => field.Member,
IMethodReferenceOperation method => method.Member,
IPropertyReferenceOperation property => property.Member,
IEventReferenceOperation @event => @event.Member,
_ => throw new InvalidOperationException("Unexpected operation kind: " + context.Operation.Kind),
};
VisitOperationSymbol(context, symbol);
}
public override void VisitEventReference(IEventReferenceOperation operation)
{
EventSymbol = operation.Event;
base.VisitEventReference(operation);
}
public override NullAbstractValue VisitEventReference(IEventReferenceOperation operation, object argument)
{
var _ = base.VisitEventReference(operation, argument);
return(GetValueBasedOnInstanceOrReferenceValue(operation.Instance));
}
public override IOperation VisitEventReference(IEventReferenceOperation operation, object argument)
{
return(new EventReferenceExpression(operation.Event, Visit(operation.Instance), ((Operation)operation).SemanticModel, operation.Syntax, operation.Type, operation.ConstantValue, operation.IsImplicit));
}
public virtual void VisitEventReference(IEventReferenceOperation operation)
{
DefaultVisit(operation);
}
public override GlobalFlowStateAnalysisValueSet VisitEventReference(IEventReferenceOperation operation, object?argument)
{
return(GetValueOrDefault(base.VisitEventReference(operation, argument)));
}
public override void VisitEventReference([NotNull] IEventReferenceOperation operation)
{
base.VisitEventReference(operation);
}
public override TAbstractAnalysisValue VisitEventReference(IEventReferenceOperation operation, object argument)
{
var value = base.VisitEventReference(operation, argument);
return(ComputeAnalysisValueForReferenceOperation(operation, value));
}
public override IdentifierInfo VisitEventReference([NotNull] IEventReferenceOperation operation,
[CanBeNull] object argument)
{
return(CreateForMemberReferenceExpression(operation, operation.Event.Type));
}
public override bool VisitEventReference([NotNull] IEventReferenceOperation operation1,
[CanBeNull] IOperation argument)
{
return(argument is IEventReferenceOperation operation2 && AreBaseOperationsEqual(operation1, operation2) &&
AreSymbolsEqual(operation1.Event, operation2.Event) && AreSymbolsEqual(operation1.Member, operation2.Member));
}