From Panama 17 to 19, ability to get M1?

[Martin Pernollet]

Hi,

About JExtract containing samples seamingly to JDK20 : where can I find JDK20 for Panama?

I just downloaded [JDK20 EA Build here](https://jdk.java.net/20/) but jextract was not part of the distribution.

Thanks,

Martin

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------- Original Message -------
Le mercredi 28 décembre 2022 à 17:01, Martin Pernollet <martin.pernollet at protonmail.com> a écrit :

> Thank you. I know these documents and rather lacks complete exemples that can work for an identified JDK version.
>
> I went back to JExtract samples, especially the opengl [teapot](https://github.com/openjdk/jextract/blob/master/samples/opengl/Teapot.java), but I can't compile it with JDK 19... seamingly the [imports refer to the JDK 20 package names](https://github.com/openjdk/jextract/blob/master/samples/opengl/Teapot.java#L32).
>
> What I still miss is
>
> import static jdk.incubator.foreign.CLinker.C_INT
>
> and other C_TYPE.
>
> They where static constants in JDK17 but then have gone. Where should we find this as of JDK19?
>
> Thanks in advance!
>
> ------- Original Message -------
> Le mercredi 28 décembre 2022 à 14:34, Maurizio Cimadamore <maurizio.cimadamore at oracle.com> a écrit :
>
>> Hi,
>> I suggest you start looking at some of the documents we have available to get started - for JDK 19 you can look here:
>>
>> https://github.com/openjdk/panama-foreign/blob/21452ec32b27ba906ec06253e4a7af9037728174/doc/panama_memaccess.md
>>
>> In short, you always need to provide a layout constant of the right kind when doing allocation using an allocator (and also when doing dereference).
>>
>> Value layout constants are provided in the ValueLayout class (e.g. ValueLayout.JAVA_DOUBLE).
>>
>> If you use jextract, additional constants (e.g. C_INT, C_LONG, ...) will be provided.
>>
>> On 23/12/2022 16:20, Martin Pernollet wrote:
>>
>>> Hi,
>>>
>>> Would anyone suggest examples showing how to use Panama 19 instead of 17? A couple of things have changed ( e.g. how to use the new
>>>
>>> locator
>>>
>>> .allocateArray(
>>>
>>> new
>>>
>>> ValueLayout.OfDouble(
>>>
>>> , and deal with all other datatypes, strings, etc).
>>>
>>> One additional question : when will ARM be supported to run panama on Apple M1?
>>
>> Apple M1 is mostly supported on JDK 19 - modulo few corner cases which have been addressed in Java 20.
>>
>> Maurizio
>>
>>> Regards,
>>>
>>> Martin
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