[foreign-memaccess+abi] RFR: 8263018: Improve API for lifecycle of native resources [v15]

[Maurizio Cimadamore]

On Fri, 19 Mar 2021 15:50:50 GMT, Paul Sandoz <psandoz at openjdk.org> wrote:

>> Maurizio Cimadamore has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Add ResourceScope overloads in CLinker
>>   Rewrite StdLib test not to use NativeScope
>>   Tweak names of allocator factories
>>   Fix javadoc
>
> src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/MemoryScope.java line 192:
> 
>> 190:      * upon subsequent requests.
>> 191:      */
>> 192:     public SegmentAllocator allocator() {
> 
> Potentially `MemoryScope` could implement `SegmentAllocator` then there is no need for this method?
> 
> And then on `SegmentAllocator`:
>     static SegmentAllocator scoped(ResourceScope scope) {
>         return (MemoryScope) Objects.requireNonNull(scope);
>     }

Yes - I guess I didn't want to blur the two concepts too much - if we go down that path I think users will be able to cast a ResourceScope into a SegmentAllocator?

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PR: https://git.openjdk.java.net/panama-foreign/pull/466