Fun with String Interpolation in C# 6 to do SQL literal encoding

Program.cs

using System;
using System.Linq;
using static System.Console;
using static System.Globalization.CultureInfo;

static class Program
{
    static void Main()
    {
        var count  = 5;
        var name   = "%foobar%";
        var schema = "dbo";
        var date   = DateTime.Today;
        var days   = 10;
        var mine   = true;

        FormattableString sql = $@"
            SELECT * FROM sys.objects
            WHERE is_ms_shipped = {!mine}
              AND schema_id = SCHEMA_ID({schema})
              AND name LIKE {name}
              AND modify_date >= DATEADD(dd, {-days}, {date})
        ";

        WriteLine("BEFORE ".PadRight(BufferWidth, '-'));
        WriteLine(sql.Format);

        var args =
            from arg in sql.GetArguments()
            select ( arg as string   )?.Replace("'", "''").Wrap("'")
                ?? ( arg as DateTime?)?.ToString("yyyy-MM-dd HH:mm:ss", InvariantCulture).Wrap("'")
                ?? ( arg as int?     )?.ToString(InvariantCulture)
                ?? ( arg as long?    )?.ToString(InvariantCulture)
                ?? ( arg as float?   )?.ToString(InvariantCulture)
                ?? ( arg as double?  )?.ToString(InvariantCulture)
                ?? ( arg as decimal? )?.ToString(InvariantCulture)
                ?? ((arg as bool?    ) == true  ? "1" : null)
                ?? ((arg as bool?    ) == false ? "0" : null)
                ?? $"/* UNKNOWN: {arg?.GetType()} */";

        WriteLine("AFTER ".PadRight(BufferWidth, '-'));
        WriteLine(sql.Format, args.ToArray());
    }
}

static class Extensions
{
    public static string Wrap(this string s, string wrapper) => s.Wrap(wrapper, wrapper);
    public static string Wrap(this string s, string left, string right) => left + s + right;
}