JVMCI: HotSpotObjectConstantImpl

[Christian Wimmer]

The best way to look into object constants is by using the 
SnippetReflectionProvider.  You can get that via getCapability() from a 
GraalRuntime.

Note that most parts of Graal must not look inside object constants, 
since that breaks compiler-VM separation. But if you are already in 
HotSpot specific code, it is not too bad.

-Christian


On 10/19/2016 04:43 AM, Doug Simon wrote:
> This class cannot be made public as it hides unsafe API, especially this method you’re referring to. You should use one of the asObject methods in jdk.vm.ci.hotspot.HotSpotObjectConstant.
>
> -Doug
>
>> On 19 Oct 2016, at 13:32, Juan Fumero <juan.fumero at ed.ac.uk> wrote:
>>
>> Hi all,
>>   is there any reason why the class HotSpotObjectConstantImpl is not
>> public? As well as the method object() ?
>>
>> I want to access to its object value:
>>
>> <code>
>> Constant value = ...
>> if (value instanceof HotSpotObjectConstant) {
>>   HotSpotObjectConstantImpl constantValue = (HotSpotObjectConstantImpl)
>> value;
>>   Object data = constantValue.object();
>>   ...
>> }
>> </code>
>>
>>
>> So in my own JVMCI version I made it public but just wondering if it
>> could be public for future releases if it makes sense.
>>
>> Thanks
>> Juan
>>
>> --
>> The University of Edinburgh is a charitable body, registered in
>> Scotland, with registration number SC005336.
>>
>