| #region Apache License |
| // |
| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to you under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| #endregion |
| |
| // inspired by https://github.com/dotnet/runtime/blob/main/src/libraries/System.Private.CoreLib/src/System/Diagnostics/CodeAnalysis/NullableAttributes.cs |
| |
| #if !NET6_0_OR_GREATER |
| namespace System.Diagnostics.CodeAnalysis; |
| |
| /// <summary> |
| /// Specifies that when a method returns System.Diagnostics.CodeAnalysis.MaybeNullWhenAttribute.ReturnValue, |
| /// the parameter may be null even if the corresponding type disallows it. |
| /// </summary> |
| [AttributeUsage(AttributeTargets.Parameter, Inherited = false)] |
| internal sealed class MaybeNullWhenAttribute : Attribute |
| { |
| /// <summary> |
| /// Initializes the attribute with the specified return value condition. |
| /// </summary> |
| /// <param name="returnValue">The return value condition. If the method returns this value, the associated parameter may be null.</param> |
| public MaybeNullWhenAttribute(bool returnValue) => ReturnValue = returnValue; |
| |
| /// <summary> |
| /// Gets the return value condition. |
| /// </summary> |
| public bool ReturnValue { get; } |
| } |
| #endif |
