AnalyzeTypeIs() [1/2]

static AnalyzeTypeIsResult System.Linq.Expressions.ConstantCheck.AnalyzeTypeIs ( Expression operand, Type testType )

inlinestaticprivate

Definition at line 22 of file ConstantCheck.cs.

    {
        Type type = operand.Type;
        if (type == typeof(void))
        {
            if (!(testType == typeof(void)))
            {
                return AnalyzeTypeIsResult.KnownFalse;
            }
            return AnalyzeTypeIsResult.KnownTrue;
        }
        if (testType == typeof(void) || testType.IsPointer)
        {
            return AnalyzeTypeIsResult.KnownFalse;
        }
        Type nonNullableType = type.GetNonNullableType();
        Type nonNullableType2 = testType.GetNonNullableType();
        if (nonNullableType2.IsAssignableFrom(nonNullableType))
        {
            if (type.IsValueType && !type.IsNullableType())
            {
                return AnalyzeTypeIsResult.KnownTrue;
            }
            return AnalyzeTypeIsResult.KnownAssignable;
        }
        return AnalyzeTypeIsResult.Unknown;
    }

References System.Type.IsAssignableFrom(), System.Type.IsPointer, System.Linq.Expressions.Expression< TDelegate >.Type, and System.type.