Le 21 avr. 2011 à 21:36, Rémi Forax a écrit :

> On 04/21/2011 09:20 PM, [email protected] wrote:
>> Le 21 avr. 2011 à 19:07, John Rose a écrit :
>> 
>>> On Apr 21, 2011, at 9:41 AM, [email protected] wrote:
>>> 
>>>> Thanks for the information.
>>>> I wondered whether the EG had a "hidden" set of tests cases...
>>> I think there are two "hidden" sets, neither of which are (AFAIK) open 
>>> source:  There is an engineering group in Oracle which is developing JCK 
>>> tests.  IBM's J9 group has their own implementation, which presumably has 
>>> unit tests.  The EG as a whole has no access to these, though individual 
>>> members do.
>>> 
>>> The EG's workflow is pretty simple:  We discuss the API, and I push the 
>>> decisions (and sometimes suggestions under discussion) into the Reference 
>>> Implementation javadoc.  The RI is staged on the mlvm-dev patch repo, and 
>>> then into OpenJDK.
>>> 
>>> The reference implementation is in OpenJDK (7 not 6), which includes the 
>>> unit tests Christian referred to.  They consist of JUnit files like 
>>> "MethodHandlesTest.java".  Invokedynamic coverage goes through the "Indify" 
>>> hack to generate the instructions from Java source.
>>> 
>>> Beyond that, invokedynamic is exercised vigorously by the language 
>>> implementations which are beginning to use it, such as JRuby.
>> Ho, yes I perfectly understand the workflow and do find it legitimate.
>> I was not worried about the quality of others' work, and I use the
>> information from the Javadoc as amendments to the class file
>> format. Everything is fine on this side.
>> 
>> 
>> As the developer of a class file manipulation library, I would like to
>> test it over ".class" files using various flavors of "invokedynamic"
>> settings. Just to verify that the library can successfully load classes
>> with "invokedynamic" instructions, associated attributes, and constant
>> pool elements.
>> 
>> Indeed, this is my work that I want to scrutinize!
>> 
>> 
>> Regards,
>> 
>> Xavier
> 
> Xavier,
> you can use ASM to generate your tests and your lib to read them (or 
> vice versa).

This is a possibility, hoping that the entry ticket to the ASM API is not to 
high.

While developing the code to read/write a JDK7 class file, I noticed what I 
think
is a typo on the 
"http://download.java.net/jdk7/docs/api/java/lang/invoke/package-summary.html";
page. The line:
        u1 reference_kind;       // 1..8 (one of REF_invokeVirtual, etc.)
should probably be:
        u1 reference_kind;       // 1..9 (one of REF_invokeVirtual, etc.)
unless interface methods are explicitly forbidden. In the latter case, what is
the motive?


Regards,

Xavier

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