public void Leave( FilterOperationField field, ObjectFieldNode node, IQueryableFilterVisitorContext context) { if (field.Operation.Kind == FilterOperationKind.ArraySome || field.Operation.Kind == FilterOperationKind.ArrayNone || field.Operation.Kind == FilterOperationKind.ArrayAll) { QueryableClosure nestedClosure = context.PopClosure(); LambdaExpression lambda = nestedClosure.CreateLambda(); Type closureType = GetTypeFor(field.Operation); Expression expression; switch (field.Operation.Kind) { case FilterOperationKind.ArraySome: expression = FilterExpressionBuilder.Any( closureType, context.GetInstance(), lambda ); break; case FilterOperationKind.ArrayNone: expression = FilterExpressionBuilder.Not( FilterExpressionBuilder.Any( closureType, context.GetInstance(), lambda ) ); break; case FilterOperationKind.ArrayAll: expression = FilterExpressionBuilder.All( closureType, context.GetInstance(), lambda ); break; default: throw new NotSupportedException(); } if (context.InMemory) { expression = FilterExpressionBuilder.NotNullAndAlso( context.GetInstance(), expression); } context.GetLevel().Enqueue(expression); context.PopInstance(); } }
public static void Leave( FilterOperationField field, ObjectFieldNode node, IQueryableFilterVisitorContext context) { if (field.Operation.Kind == FilterOperationKind.Object) { // Deque last expression to prefix with nullcheck Expression condition = context.GetLevel().Dequeue(); Expression property = context.GetInstance(); // wrap last expression only if in memory if (context.InMemory) { condition = FilterExpressionBuilder.NotNullAndAlso( property, condition); } context.GetLevel().Enqueue(condition); context.PopInstance(); } }