18 lines
710 B
C#
18 lines
710 B
C#
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#if NETFRAMEWORK
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namespace System.Diagnostics.CodeAnalysis {
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[AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
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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.Field | AttributeTargets.Parameter, Inherited = false)]
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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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sealed class DisallowNullAttribute : Attribute {
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public DisallowNullAttribute() { }
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}
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}
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#endif
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