Wrong BigInteger value (V8ScriptEngine)

[seberoth]

ClearScript: 7.4.1
.Net: 7

Hi,

I currently try to pass an uint64 from JS to a host method. After learning, that JS numbers doesn't work for that I tried using BigInteger.
But for some reason, the value which is passed to the host method isn't the one used in JS.

    public class TestClass
    {
        public void TestMethod(BigInteger val)
        {
            // ...
            // Call1: Expected: 18446744073709550590
            //             Got: 18446744073709549568
            // Call2: Expected: 18446744073709550591
            //             Got: 18446744073709549568 (same as Call1)
            // Call3: Expected: 18446744073709550592
            //             Got: 18446744073709551616
            // Call4: Expected: 18446744073709550593
            //             Got: 18446744073709551616 (same as Call3)
            // ...
        }
    }

    internal class Program
    {
        static void Main(string[] args)
        {
            using (var engine = new V8ScriptEngine())
            {
                engine.AddHostObject("test", new TestClass());
                engine.Execute("test.TestMethod(BigInt(18446744073709550590))");
                engine.Execute("test.TestMethod(BigInt(18446744073709550591))");
                engine.Execute("test.TestMethod(BigInt(18446744073709550592))");
                engine.Execute("test.TestMethod(BigInt(18446744073709550593))");
            }
        }
    }

[seberoth]

Nevermind, it was me -.-
Of course doesn't work to pass a number that big into the BigInt constructor. With qoutes it works.

[ClearScriptLib]

Hi @seberoth,

Thanks for the update. Note that you can also use BigInt literals – e.g., 18446744073709550590n to avoid parsing and explicit invocation of the BigInt constructor.

Cheers!