how to import long from java into polyglot => java.lang.Long cannot be cast to com.oracle.truffle.api.interop.TruffleObject [was Re: Graal embed documentation not in place]

[Daniele Bonetta]

Hi Jerven,

there is no Graal.js-only list at the moment, so feel free to report any 
issue on this list :)

Regards,

Daniele



On 08.08.2017 15:21, Jerven Tjalling Bolleman wrote:
> Hi Daniele, All,
>
> Thanks, for the fast reply. Does anyone mind if I keep sending e-mails 
> in this form to the graal-dev list or would you prefer I send these 
> Graal.js java interop ones too a different list?
>
> I already have a few more ;)
>
> Regards,
> Jerven
>
> On 08/08/2017 02:53 PM, Daniele Bonetta wrote:
>> Hi Jerven,
>>
>> your code is correct, but does not work due to a bug in the Graal.js 
>> interop support.
>>
>> We already have a fix for that bug, and the fix will be part of the 
>> next monthly Graal VM release (v0.27).
>>
>>
>> Thanks for your bug report!
>>
>> Regards,
>>
>> Daniele
>>
>>
>>
>> On 08.08.2017 11:54, Jerven Tjalling Bolleman wrote:
>>> Hi All,
>>>
>>> Next question, How can I import a java.lang.Long into the js space 
>>> inside the context. I am now working around it by passing it in as a 
>>> parameter e.g.
>>>
>>> Value function = context.eval("js", "function(x,out){out.print(x)}");
>>> function.execute(out, 1000_000_000_000L);
>>>
>>> Works
>>>
>>> However,
>>>
>>> context.exportSymbol("x",1000_000_000_000L);
>>> context.exportSymbol("out", response.getOutoutStream());
>>> Value function = context.eval("js", 
>>> "x=Interop.import('x');out=Interop.import('out);out.print(x)");
>>>
>>> Does not with the following exception.
>>>
>>> java.lang.Long cannot be cast to 
>>> com.oracle.truffle.api.interop.TruffleObject
>>>
>>> Regards,
>>> Jerven
>>>
>>>
>>>
>>> On 08/07/2017 02:39 PM, Doug Simon wrote:
>>>> We are currently working on extensive documentation for GraalVM but 
>>>> it's not yet ready for release.
>>>>
>>>> You can find a draft of the embedding page at 
>>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__www.dropbox.com_s_ia4yoe2jh6viyzq_Embed-2520Languages-2520with-2520the-2520Graal-2520Polyglot-2520SDK.pdf-3Fdl-3D0&d=DwICaQ&c=RoP1YumCXCgaWHvlZYR8PQcxBKCX5YTpkKY057SbK10&r=W5Zo00VHyUAb3eyeSOfpd8vQ04i6XWgfLSLJcJECgxE&m=6PDu846uJ078h-SZRYjYKPBaGR1da2ltWJgHrzftIso&s=Cv0eEOI0tBRk2cYh61HPe4A00Xn4uUVm32MQgXGQSro&e= 
>>>>
>>>>
>>>> Keep in mind that it's only a draft and may contain errors.
>>>>
>>>> -Doug
>>>>
>>>>> On 7 Aug 2017, at 12:49, Jerven Tjalling Bolleman 
>>>>> <jerven.bolleman at sib.swiss> wrote:
>>>>>
>>>>> Dear Graal devs,
>>>>>
>>>>> Really love the work you are doing. I am just looking for some 
>>>>> documentation.
>>>>>
>>>>> In the Graal OTN 0.26 release graalvm-0.26/examples/embed/README.md
>>>>> file a location is mentioned where one should find graal embedding 
>>>>> documentation.
>>>>>
>>>>> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.graalvm.org_docs_embed_&d=DwICaQ&c=RoP1YumCXCgaWHvlZYR8PQcxBKCX5YTpkKY057SbK10&r=W5Zo00VHyUAb3eyeSOfpd8vQ04i6XWgfLSLJcJECgxE&m=6PDu846uJ078h-SZRYjYKPBaGR1da2ltWJgHrzftIso&s=X_S7O7VP-odaX11BVYCcKzjL8pLneZMoXl98Xzp-VmQ&e= 
>>>>>
>>>>> However, this does not resolve at this time.
>>>>>
>>>>> Otherwise, the example in that directory was exactly what I was 
>>>>> looking for!
>>>>>
>>>>> I did want to know if it is already possible to run graal.js on a 
>>>>> JDK9-EA? Without graal if need be? for example by copying the 
>>>>> trufflejs.jar and truffle.jar to a JDK9 classpath?
>>>>>
>>>>> Regards,
>>>>> Jerven
>>>>> -- 
>>>>> -------------------------------------------------------------------
>>>>> Jerven Bolleman Jerven.Bolleman at sib.swiss
>>>>> SIB Swiss Institute of Bioinformatics  Tel: +41 (0)22 379 58 85
>>>>> CMU, rue Michel Servet 1               Fax: +41 (0)22 379 58 58
>>>>> 1211 Geneve 4,
>>>>> Switzerland     www.sib.swiss - www.uniprot.org
>>>>> Follow us at 
>>>>> https://urldefense.proofpoint.com/v2/url?u=https-3A__twitter.com_-23-21_uniprot&d=DwICaQ&c=RoP1YumCXCgaWHvlZYR8PQcxBKCX5YTpkKY057SbK10&r=W5Zo00VHyUAb3eyeSOfpd8vQ04i6XWgfLSLJcJECgxE&m=6PDu846uJ078h-SZRYjYKPBaGR1da2ltWJgHrzftIso&s=0kjMaBI9UJj3x8hoD0ePJJLhOMChklmfrE9b9kH0AKk&e= 
>>>>> -------------------------------------------------------------------
>>>>
>>>
>>
>