On Mon, 18 Nov 2024 02:58:31 GMT, Chen Liang <li...@openjdk.org> wrote:

>> Improve the documentation for classfile instructions. Includes links to all 
>> opcodes, usage notes for instructions, and other various fixes.
>> 
>> API Diff: 
>> https://cr.openjdk.org/~liach/apidiff/cf-instr/java.base/module-summary.html
>> Javadoc: 
>> https://cr.openjdk.org/~liach/javadoc/cf-instr/java.base/java/lang/classfile/instruction/package-summary.html
>> 
>> Please review the associated CSR as well.
>
> Chen Liang has updated the pull request with a new target base due to a merge 
> or a rebase. The pull request now contains six commits:
> 
>  - Further facelift
>  - Merge branch 'master' of https://github.com/openjdk/jdk into 
> docs/cf-instruction
>  - Merge branch 'master' of https://github.com/openjdk/jdk into 
> docs/cf-instruction
>  - Typos, long lines
>  - Labels
>  - Wip instr

src/java.base/share/classes/java/lang/classfile/instruction/CharacterRange.java 
line 62:

> 60:  * <p>
> 61:  * Physically, a character range has the same structure; it is modeled by 
> a
> 62:  * {@link CharacterRangeInfo}.

I'm not sure how to explain "Physically" and "it is modeled by".
If "Physically" means specific byte serialization, then it is an entry in a CRT 
attribute with BCIs instead of labels.

"it is modeled by a CharacterRangeInfo" seems to me very confusing as this 
class (CharacterRange) is the primary model class. 

Maybe we should explain the duplicity of some classfile structures accessible 
as attributes internal raw structures (CharacterRangeInfo) versus preferred 
primary models as labeled pseudo instructions (CharacterRange).

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

PR Review Comment: https://git.openjdk.org/jdk/pull/21625#discussion_r1847995378

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