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

[Jim Laskey]

On Mon, 31 Oct 2022 20:50:49 GMT, Rémi Forax <forax 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/template/TemplateRuntime.java line 119:
> 
>> 117:         Class<?> tsClass = st.getClass();
>> 118:         if (tsClass.isSynthetic()) {
>> 119:             try {
> 
> I do not know if this code is worth of optimizing but the way to avoid to recompute the List<Class<?>> each time is to use a java.lang.ClassValue and store the classes inside an unmodifiable List. (Field[] -> Class<?>[] -> List<Class<?>>) The last leg can be done just by calling List.of(), there is no need for an ArrayList here

Will use List.of. I think use case is raw and caching should be left to the user.

> src/java.base/share/classes/java/lang/template/TemplateRuntime.java line 132:
> 
>> 130:             return result;
>> 131:         }
>> 132:         for (Object value : st.values()) {
> 
> I think that valueTypes() should return the types of the values not the dynamic classes of the values.
> Here there is no type information so it should be Object for all values.
> 
> It has also the nice property that the return type of the accessors returned by valueAccessors are the same as valueTypes() which is i believe more coherent.

Changing

-------------

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