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The double[][] in .NET is spitting out bad conversion code. #456
Description
The function name incorrectly includes []:
private static Microsoft.JavaScript.NodeApi.JSValue from_System_Double[]_Array(double[][] value)
{
Microsoft.JavaScript.NodeApi.JSArray jsArray = new Microsoft.JavaScript.NodeApi.JSArray(value.Length);
jsArray.CopyFrom<double[]>(value, 0, (double[] value) =>
{
jsArray = new Microsoft.JavaScript.NodeApi.JSArray(value.Length);
jsArray.CopyFrom<double>(value, 0, (double value) =>
{
return (Microsoft.JavaScript.NodeApi.JSValue)value;
});
return (Microsoft.JavaScript.NodeApi.JSValue)jsArray;
});
return (Microsoft.JavaScript.NodeApi.JSValue)jsArray;
}
private static double[][] to_System_Double[]_Array(Microsoft.JavaScript.NodeApi.JSValue value)
{
Microsoft.JavaScript.NodeApi.JSArray jsArray = (Microsoft.JavaScript.NodeApi.JSArray)value;
double[][] array = new double[][jsArray.Length];
jsArray.CopyTo<double[]>(array, 0, (Microsoft.JavaScript.NodeApi.JSValue value) =>
{
jsArray = (Microsoft.JavaScript.NodeApi.JSArray)value;
array = new double[jsArray.Length];
jsArray.CopyTo<double>(array, 0, (Microsoft.JavaScript.NodeApi.JSValue value) =>
{
return (double)value;
});
return array;
});
return array;
} <ItemGroup>
<PackageReference Include="Microsoft.JavaScript.NodeApi" Version="0.9.15-*" />
<PackageReference Include="Microsoft.JavaScript.NodeApi.Generator" Version="0.9.15-*" />
</ItemGroup>
Activity
bhalderman-bv commentedon Oct 23, 2025
Is this issue just for the name of the function, or for the body as well? Since I was getting build errors trying to use
double[][], I switched toList<List<double>>, which fixes the method name but returns an infinitely recursive array. I was expecting output something like[[0,1]]and instead got[0,1,[...]]where the item at index 2 is a reference to the outer array. Looking at the generated code, it's nearly identical to what you have above, so I'm assuming the conversion todouble[][]will have the same problem.