Cannot read top-level attributes of file about hdf5.node HOT 11 CLOSED

Thanks for the sample data. I'll run thru and see what data types to add support for.

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Ah, these are 64 bit integers. Javascript has no primitive integer with this bit resolution. The google v8 doesn't have anything for it.

For hdf5.node I made a custom holder for 64 bit id's called hdf5.Int64. We could use this to return these attribute data types as well. It is possible to get the string representation with hdf5.Int64.toString method which javascript will use in print statements. Could also return Array's of hdf5.Int64's as well.

To write back to h5/biom files any attribute within 32 bit could be written with new hdf5.Int64(0)
I will be adding instantiation to take a string representation of a 64 bit like new hdf5.Int64("0")

Would this solution work for you?

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Could also add a hdf5.Uint64 for unsigned ones

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If the remaining attributes come wrapped in your hdf5.Int64 container in the same way the id attribute does that would be perfect. That solution would work well for me - thanks!

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Ok, I'll move forward

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I should have this working by morning; got delayed over the weekend not being near my computers

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The repository HEAD is read int64_t & uint64_t attributes as single values or arrays.

Adding writing using a string representation

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The writing of Uint64 and Int64 scalar and array attributes have been added

            file.nnz=new hdf5Lib.hdf5.Int64("15");
            file.unnz=new hdf5Lib.hdf5.Uint64("40");
            var fv=new Array(2);
            fv[0]=new hdf5Lib.hdf5.Int64("2");
            fv[1]=new hdf5Lib.hdf5.Int64("1");
            file["formart-version"]=fv;
            var ufv=new Array(2);
            ufv[0]=new hdf5Lib.hdf5.Uint64("20");
            ufv[1]=new hdf5Lib.hdf5.Uint64("10");
            file["uformart-version"]=ufv;
            file.flush();

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file.refresh() is working for me at e857f0eef9c8c7019935b013611a4b0b9db1df82 - thanks!

When do these changes typically make their way onto the NPM registry?

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Will do soon. I now have access to a mac talking with github to test it is working on darwin with static hdf5 native libraries #56. Hopefully over the weekend and publish to npm on Monday

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Postponed for a while but getting close now that I can build on a mac via travis-ci.org
https://travis-ci.org/HDF-NI/hdf5.node/

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