RFR: JDK-8285932 Implementation of JEP-430 String Templates (Preview) [v7]

[Jim Laskey]

On Wed, 2 Nov 2022 17:06:50 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

>> Jim Laskey has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Add @SafeVarargs declarations
>
> src/java.base/share/classes/java/lang/runtime/TemplateSupport.java line 141:
> 
>> 139:         MethodType processorGetterType = MethodType.methodType(ValidatingProcessor.class);
>> 140:         ValidatingProcessor<?, ?> processor =
>> 141:                 (ValidatingProcessor<?, ?>)processorGetter.asType(processorGetterType).invokeExact();
> 
> Essentially the same as:
> Suggestion:
> 
>         ValidatingProcessor<?, ?> processor = (ValidatingProcessor<?, ?>)processorGetter.invoke();

Changing

> src/java.base/share/classes/java/lang/template/ProcessorLinkage.java line 60:
> 
>> 58:      * @throws NullPointerException if any of the arguments are null
>> 59:      */
>> 60:     MethodHandle linkage(List<String> fragments, MethodType type);
> 
> I suggest changing the protocol here to be able to take all bootstrap arguments into account, and return a `CallSite` instead. That will allow a `ProcessorLinkage` to take the lookup and name into account as well, and allows returning e.g. a `MutableCallSite` as well.
> 
> Maybe this can still be changed later as well though, since the interface is sealed.

Yes - this will all go away during preview.

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PR: https://git.openjdk.org/jdk/pull/10889