notes from Valhalla meeting 5/24/17
paul.sandoz at oracle.com
Wed Jun 21 18:13:41 UTC 2017
> On 21 Jun 2017, at 01:46, John Rose <john.r.rose at oracle.com> wrote:
> On Jun 19, 2017, at 6:28 PM, John Rose <john.r.rose at oracle.com> wrote:
>> I have updated the javadoc portion of the spec for constant-dynamic.
>> There are small but strategic changes to MethodType and MethodHandle,
>> as well as new classes to represent the "pull mode" of constant resolution.
>> The key changes relevant to the JVM are in package-info.html,
>> and (of course) in the forthcoming JVM spec. changes.
> The forthcoming has come forth. Here is a semi-formatted and
> color-annotated diff of the JVMS outlining proposed support for
> dynamic constants, as well as some enhancements to the processing
> of bootstrap methods:
Nice, a thorougher set of changes.
I like the trigger on arity. There is no dependency on the signature of the BSM (although as an implementation detail we can optimize).
Trivially (perhaps as note?) a BSM is not limited to being solely referenced by a CONSTANT_ConstantDynamic_info or a CONSTANT_InvokeDynamic_info. Just like previously a BSM was not limited to being solely referenced by one kind of CONSTANT_InvokeDynamic_info.
It’s now much easier to share BSMs if that is ones desire.
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