ValidateCoalesceArgTypes()

static Type System.Linq.Expressions.Expression< TDelegate >.ValidateCoalesceArgTypes ( Type left, Type right )

inlinestaticprivateinherited

Definition at line 1306 of file Expression.cs.

    {
        Type nonNullableType = left.GetNonNullableType();
        if (left.IsValueType && !left.IsNullableType())
        {
            throw Error.CoalesceUsedOnNonNullType();
        }
        if (left.IsNullableType() && right.IsImplicitlyConvertibleTo(nonNullableType))
        {
            return nonNullableType;
        }
        if (right.IsImplicitlyConvertibleTo(left))
        {
            return left;
        }
        if (nonNullableType.IsImplicitlyConvertibleTo(right))
        {
            return right;
        }
        throw Error.ArgumentTypesMustMatch();
    }

References System.Linq.Expressions.Error.ArgumentTypesMustMatch(), System.Linq.Expressions.Error.CoalesceUsedOnNonNullType(), and System.Type.IsValueType.

Referenced by System.Linq.Expressions.Expression< TDelegate >.Coalesce().