id	summary	reporter	owner	description	type	status	priority	milestone	component	resolution	keywords	cc	planetversion	pltversion
13	support for v3 and v4	dherman	dherman	"Danny Yoo wrote:

> Hi Dave,
> 
> I sent an earlier patch to struct.plt 2.3 to make it work with mzscheme 3.99, but didn't hear back from you yet.  In any case, I took a look at it again, and the patch wasn't so good because it made it work only with mzscheme 3.99, which broke backwards compatibility.
> 
> Since you probably want to make it work regardless of version, I've updated the patch so that it uses version-case to do the appropriate version-specific stuff.
> 
> Summary of changes:
> 
>   * I created a separate module 'private/struct-info-compat.ss' which
>     provides a function to get the predicate from the struct type syntax
>     object.  I updated datatype.ss to use this library.
> 
>   * As in the previous patch, I also modernized the test cases to use
>     SchemeUnit 2.  The tests involving hierarchy are failing, but I don't
>     think it's a problem with my patch, but rather with a missing
>     'definitions' collection that I don't know much about.
> 
> I hope this helps!
"	defect	new	major		dherman/struct.plt