OrElse() [2/2]

static BinaryExpression System.Linq.Expressions.Expression< TDelegate >.OrElse ( Expression< TDelegate > left, Expression< TDelegate > right, MethodInfo? method )

inlinestaticinherited

Definition at line 1234 of file Expression.cs.

    {
        ExpressionUtils.RequiresCanRead(left, "left");
        ExpressionUtils.RequiresCanRead(right, "right");
        Type type;
        if (method == null)
        {
            if (left.Type == right.Type)
            {
                if (left.Type == typeof(bool))
                {
                    return new LogicalBinaryExpression(ExpressionType.OrElse, left, right);
                }
                if (left.Type == typeof(bool?))
                {
                    return new SimpleBinaryExpression(ExpressionType.OrElse, left, right, left.Type);
                }
            }
            method = GetUserDefinedBinaryOperator(ExpressionType.OrElse, left.Type, right.Type, "op_BitwiseOr");
            if (method != null)
            {
                ValidateUserDefinedConditionalLogicOperator(ExpressionType.OrElse, left.Type, right.Type, method);
                type = ((left.Type.IsNullableType() && method.ReturnType == left.Type.GetNonNullableType()) ? left.Type : method.ReturnType);
                return new MethodBinaryExpression(ExpressionType.OrElse, left, right, type, method);
            }
            throw Error.BinaryOperatorNotDefined(ExpressionType.OrElse, left.Type, right.Type);
        }
        ValidateUserDefinedConditionalLogicOperator(ExpressionType.OrElse, left.Type, right.Type, method);
        type = ((left.Type.IsNullableType() && method.ReturnType == left.Type.GetNonNullableType()) ? left.Type : method.ReturnType);
        return new MethodBinaryExpression(ExpressionType.OrElse, left, right, type, method);
    }

References System.Linq.Expressions.Error.BinaryOperatorNotDefined(), System.Linq.Expressions.Expression< TDelegate >.GetUserDefinedBinaryOperator(), System.Dynamic.Utils.ExpressionUtils.RequiresCanRead(), System.type, and System.Linq.Expressions.Expression< TDelegate >.ValidateUserDefinedConditionalLogicOperator().