RFR: 8272234: Pass originating elements from Filer to JavaFileManager [v2]

[Joe Darcy]

On Fri, 15 Oct 2021 22:05:06 GMT, Jonathan Gibbons <jjg at openjdk.org> wrote:

>> Jan Lahoda has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 16 commits:
>> 
>>  - Javadoc improvements.
>>  - Merge branch 'master' into ap-keep-originating-elements
>>  - Cleanup.
>>  - Improving testing
>>  - Updating @since
>>  - Merge branch 'master' into ap-keep-originating-elements
>>  - Another attempt to fix the test.
>>  - More attempts to fix the test.
>>  - Attempting to fix test.
>>  - Adding @since
>>  - ... and 6 more: https://git.openjdk.java.net/jdk/compare/4cb7124c...9396bbb4
>
> src/jdk.compiler/share/classes/com/sun/tools/javac/processing/JavacFiler.java line 549:
> 
>> 547:                 })
>> 548:                 .filter(fo -> fo != null)
>> 549:                 .toArray(s -> new JavaFileObject[s]);
> 
> @jddarcy this is an example of why it would be good to have an API method in the Language Model world to get the "source" from which an `Element` was obtained, where "source" means either a .class or a .java file ... in other words, the `Symbol.classfile` field accessed in this code.

Acknowledged; it would be preferable if this mapping could be done in the standardized API.

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PR: https://git.openjdk.java.net/jdk/pull/5076