64 lines
1.8 KiB
C#
64 lines
1.8 KiB
C#
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using Roslyn.Utilities;
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namespace Microsoft.CodeAnalysis.CSharp;
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internal static class NullableFlowStateExtensions
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{
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public static bool MayBeNull(this NullableFlowState state)
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{
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return state != NullableFlowState.NotNull;
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}
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public static bool IsNotNull(this NullableFlowState state)
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{
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return state == NullableFlowState.NotNull;
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}
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public static NullableFlowState Join(this NullableFlowState a, NullableFlowState b)
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{
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if ((int)a <= (int)b)
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{
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return b;
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}
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return a;
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}
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public static NullableFlowState Meet(this NullableFlowState a, NullableFlowState b)
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{
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if ((int)a >= (int)b)
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{
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return b;
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}
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return a;
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}
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internal static NullableFlowState ToPublicFlowState(this NullableFlowState nullableFlowState)
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{
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//IL_0019: Unknown result type (might be due to invalid IL or missing references)
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//IL_001d: Unknown result type (might be due to invalid IL or missing references)
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//IL_0021: Unknown result type (might be due to invalid IL or missing references)
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//IL_0030: Unknown result type (might be due to invalid IL or missing references)
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return (NullableFlowState)(nullableFlowState switch
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{
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NullableFlowState.NotNull => 1,
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NullableFlowState.MaybeNull => 2,
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NullableFlowState.MaybeDefault => 2,
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_ => throw ExceptionUtilities.UnexpectedValue((object)nullableFlowState),
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});
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}
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public static NullableFlowState ToInternalFlowState(this NullableFlowState flowState)
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{
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//IL_0000: Unknown result type (might be due to invalid IL or missing references)
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//IL_0012: Expected I4, but got Unknown
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//IL_0020: Unknown result type (might be due to invalid IL or missing references)
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return (int)flowState switch
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{
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0 => NullableFlowState.NotNull,
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1 => NullableFlowState.NotNull,
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2 => NullableFlowState.MaybeNull,
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_ => throw ExceptionUtilities.UnexpectedValue((object)flowState),
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};
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}
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}
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