On Apr 16, 2013, at 04:54, Navgeet Agrawal wrote:
> Hi all, thanks for these suggestions and sorry for the late reply.

No problem; I'm happy that we didn't scare you away (:-).

> I have been looking into jvm.tools.analyze for the past few days and it
> looks as a better choice to build a comprehensive analyzer. Of course
> the biggest problem in using it is it likes to expand all macros fully,
> which is bad for codeq. I think that can be handled by patching some
> parts of Compiler.java and using the patched methods. I am currently
> trying to write a demonstration fork of jvm.tools.analyze.

>From a documentation point of view, macros have two operational contexts.
In one, they generate code; in the other, the generated code is run.  I'm
not precisely sure how this should be handled, but it _is_ interesting.


> I have been thinking for some time that tracking the inputs and outputs
> through every function in a program over time can be useful. We could
> allow the user to call some function with test input, then for all
> functions down the call chain, store their input and output in the
> datomic database. Do this for every commit (every time the function
> changes). The results can provide feedback about data flow in the
> program across commits. Any comments?

One use case for this sort of tracking would be to collect "signatures"
for the inputs and outputs seen in the test suite.  If a production run
generates diverging signatures, either the test suite is incomplete or
the production code is using the function in an unexpected fashion.


> That's all for now till my exams end.

Good luck in the exams!

-r

 -- 
http://www.cfcl.com/rdm            Rich Morin
http://www.cfcl.com/rdm/resume     r...@cfcl.com
http://www.cfcl.com/rdm/weblog     +1 650-873-7841

Software system design, development, and documentation


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