34 lines
1.7 KiB
C#
34 lines
1.7 KiB
C#
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#if NETFRAMEWORK
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namespace System.Diagnostics.CodeAnalysis {
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#pragma warning disable CS1591 // Missing XML comment for publicly visible type or member
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[AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
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public sealed class NotNullWhenAttribute : Attribute {
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public NotNullWhenAttribute(bool returnValue) => ReturnValue = returnValue;
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public bool ReturnValue { get; }
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}
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[AttributeUsage(AttributeTargets.Property | AttributeTargets.Parameter | AttributeTargets.ReturnValue, AllowMultiple = true, Inherited = false)]
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public sealed class NotNullIfNotNullAttribute : Attribute {
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public NotNullIfNotNullAttribute(string parameterName) => ParameterName = parameterName;
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public string ParameterName { get; }
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}
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[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter | AttributeTargets.ReturnValue, Inherited = false)]
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public sealed class MaybeNullAttribute : Attribute {
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public MaybeNullAttribute() { }
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}
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[AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
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public sealed class DoesNotReturnIfAttribute : Attribute {
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public DoesNotReturnIfAttribute(bool parameterValue) => ParameterValue = parameterValue;
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public bool ParameterValue { get; }
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}
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[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter, Inherited = false)]
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public sealed class AllowNullAttribute : Attribute {
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public AllowNullAttribute() { }
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}
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[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field | AttributeTargets.Parameter, Inherited = false)]
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public sealed class DisallowNullAttribute : Attribute {
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public DisallowNullAttribute() { }
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}
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#pragma warning restore CS1591 // Missing XML comment for publicly visible type or member
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}
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#endif
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