| #region Copyright notice and license |
| |
| // Copyright 2015 gRPC authors. |
| // |
| // Licensed 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 |
| |
| using System; |
| |
| namespace Grpc.Core.Utils |
| { |
| /// <summary> |
| /// Utility methods to simplify checking preconditions in the code. |
| /// </summary> |
| public static class GrpcPreconditions |
| { |
| /// <summary> |
| /// Throws <see cref="ArgumentException"/> if condition is false. |
| /// </summary> |
| /// <param name="condition">The condition.</param> |
| public static void CheckArgument(bool condition) |
| { |
| if (!condition) |
| { |
| throw new ArgumentException(); |
| } |
| } |
| |
| /// <summary> |
| /// Throws <see cref="ArgumentException"/> with given message if condition is false. |
| /// </summary> |
| /// <param name="condition">The condition.</param> |
| /// <param name="errorMessage">The error message.</param> |
| public static void CheckArgument(bool condition, string errorMessage) |
| { |
| if (!condition) |
| { |
| throw new ArgumentException(errorMessage); |
| } |
| } |
| |
| /// <summary> |
| /// Throws <see cref="ArgumentNullException"/> if reference is null. |
| /// </summary> |
| /// <param name="reference">The reference.</param> |
| public static T CheckNotNull<T>(T reference) |
| { |
| if (reference == null) |
| { |
| throw new ArgumentNullException(); |
| } |
| return reference; |
| } |
| |
| /// <summary> |
| /// Throws <see cref="ArgumentNullException"/> if reference is null. |
| /// </summary> |
| /// <param name="reference">The reference.</param> |
| /// <param name="paramName">The parameter name.</param> |
| public static T CheckNotNull<T>(T reference, string paramName) |
| { |
| if (reference == null) |
| { |
| throw new ArgumentNullException(paramName); |
| } |
| return reference; |
| } |
| |
| /// <summary> |
| /// Throws <see cref="InvalidOperationException"/> if condition is false. |
| /// </summary> |
| /// <param name="condition">The condition.</param> |
| public static void CheckState(bool condition) |
| { |
| if (!condition) |
| { |
| throw new InvalidOperationException(); |
| } |
| } |
| |
| /// <summary> |
| /// Throws <see cref="InvalidOperationException"/> with given message if condition is false. |
| /// </summary> |
| /// <param name="condition">The condition.</param> |
| /// <param name="errorMessage">The error message.</param> |
| public static void CheckState(bool condition, string errorMessage) |
| { |
| if (!condition) |
| { |
| throw new InvalidOperationException(errorMessage); |
| } |
| } |
| } |
| } |