System.Diagnostics.CodeAnalysis.cs

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

#pragma warning disable CA1801, CA1822

namespace System.Diagnostics.CodeAnalysis;

[ExcludeFromCodeCoverage]
[AttributeUsage(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property, Inherited = false)]
internal sealed class AllowNullAttribute : Attribute
{
}
[ExcludeFromCodeCoverage]
[AttributeUsage(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property, Inherited = false)]
internal sealed class DisallowNullAttribute : Attribute
{
}
[ExcludeFromCodeCoverage]
[AttributeUsage(AttributeTargets.Method, Inherited = false)]
internal sealed class DoesNotReturnAttribute : Attribute
{
}
[ExcludeFromCodeCoverage]
[AttributeUsage(AttributeTargets.Parameter)]
internal sealed class DoesNotReturnIfAttribute : Attribute
{
    public DoesNotReturnIfAttribute(bool parameterValue) { }
    public bool ParameterValue { get { throw null!; } }
}
[ExcludeFromCodeCoverage]
[AttributeUsage(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue, Inherited = false)]
internal sealed class MaybeNullAttribute : Attribute
{
}
[ExcludeFromCodeCoverage]
[AttributeUsage(AttributeTargets.Parameter)]
internal sealed class MaybeNullWhenAttribute : Attribute
{
    public MaybeNullWhenAttribute(bool returnValue) { }
    public bool ReturnValue { get { throw null!; } }
}
[ExcludeFromCodeCoverage]
[AttributeUsage(AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue, Inherited = false)]
internal sealed class NotNullAttribute : Attribute
{
}
[ExcludeFromCodeCoverage]
[AttributeUsage(AttributeTargets.Parameter | AttributeTargets.Property | AttributeTargets.ReturnValue, AllowMultiple = true, Inherited = false)]
internal sealed class NotNullIfNotNullAttribute : Attribute
{
    public NotNullIfNotNullAttribute(string parameterName) { }
    public string ParameterName { get { throw null!; } }
}
[ExcludeFromCodeCoverage]
[AttributeUsage(AttributeTargets.Parameter)]
internal sealed class NotNullWhenAttribute : Attribute
{
    public NotNullWhenAttribute(bool returnValue) { }
    public bool ReturnValue { get { throw null!; } }
}