RFR: 8325805: Compiler Implementation for Flexible Constructor Bodies (Second Preview) [v9]

[Jan Lahoda]

On Thu, 9 May 2024 13:53:11 GMT, Archie Cobbs <acobbs at openjdk.org> wrote:

>> This patch changes the compiler to allow constructors to make assignments to fields prior to the `super()` invocation, i.e., in the pre-construction context.  This is part of the work associated with [JDK-8325803 - Flexible Constructor Bodies (Second Preview)](https://bugs.openjdk.org/browse/JDK-8325803).
>> 
>> This patch is based the relevant bits from @vicente-romero-oracle's commit [1b99b5cf](https://github.com/openjdk/valhalla/commit/1b99b5cfd9a5d484b9e7bdfc284daad9ad6535bf) to the valhalla repo.
>
> Archie Cobbs has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 27 commits:
> 
>  - Merge branch 'master' into JDK-8325805
>  - Update feature name "statements before super()" -> "flexible constructors".
>  - Remove redundant type check.
>  - Use instanceof instead of hasTag().
>  - Refactor some common logic into new method Resolve.isEarlyReference().
>  - Minor improvements to method name and Javadoc description.
>  - Add assertion to Resolve.resolveSelf() verifying symbol name.
>  - Allow declaring and instantiating local classes prior to super().
>  - Merge branch 'master' into JDK-8325805
>  - Merge branch 'master' into JDK-8325805
>  - ... and 17 more: https://git.openjdk.org/jdk/compare/0a4eeeaa...963ca915

Please note that the JEP is not Targeted yet:
https://bugs.openjdk.org/browse/JDK-8325803

We need to wait with the actual integration/sponsorship until the JEP is targeted.

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PR Comment: https://git.openjdk.org/jdk/pull/18088#issuecomment-2126400539