RFR: 8300543 Compiler Implementation for Pattern Matching for switch [v5]

Vicente Romero vromero at openjdk.org
Fri Apr 21 16:52:57 UTC 2023

On Fri, 21 Apr 2023 16:25:04 GMT, Jan Lahoda <jlahoda at openjdk.org> wrote:

>> This is the first draft of a patch for JEP 440 and JEP 441. Changes included:
>>  - the pattern matching for switch and record patterns features are made final, together with updates to tests.
>>  - parenthesized patterns are removed.
>>  - qualified enum constants are supported for case labels.
>> This change herein also includes removal record patterns in for each loop, which may be split into a separate PR in the future.
> Jan Lahoda has updated the pull request incrementally with two additional commits since the last revision:
>  - Adding test.
>  - Removing redundant continue, as noted on the review.

src/java.base/share/classes/java/lang/runtime/SwitchBootstraps.java line 315:

> 313:         Object[] labels = resolvedLabels.resolvedLabels;
> 314: 
> 315:         // Dumbest possible strategy

I guess that given that we can't make any assumption about order here, this is the only possible strategy so I guess it makes sense to remove the comment


PR Review Comment: https://git.openjdk.org/jdk/pull/13074#discussion_r1173981785

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