To deal with the problem the ideal solution would be supporting
something along these lines.
It's probably inevitable that at some point the Clojure compiler would
have be modified.
On Oct 15, 12:17 pm, Manuel Woelker <manuel.woel...@gmail.com> wrote:
> On Thu, Oct 15, 2009 at 5:48 AM, jng27 <jgran...@gmail.com> wrote:
>
> > The following seems like it could be a common scenario when attempting
> > to re-write parts of an existing Java application in Clojure.
>
> > Let's say there exists Clojure code and Java code in the same
> > 'project'.
> > The Clojure code depends on the Java code in one direction and then
> > the same is true in the opposite direction.
> > Given that compiling Java and Clojure require separate and different
> > compilation steps, how would circular dependencies be resolved ?
> > e.g. A class is defined in the Clojure code that references Java
> > classes(yet to be compiled) and the same is true for the Java code
> > referencing classes defined in Clojure(yet to be compiled). It doesn't
> > seem like compiling one before the other would solve this issue.
>
> One possible solution that could be feasible is a two pass compilation
> for clojure. The first compilation pass would basically just generate
> the skeletons for the classes, i.e. just the method "heads" with each
> method body being ignored and replaced with 'throw new
> IllegalStateExccpetion("You are using first pass compilation
> results")' or something along those lines. After this compilation pass
> the Java classes can be compiled just fine, since all method calls can
> be resolved. Finally the second pass of the clojure compilation fills
> in the real method bodies, now that Java classes have been generated.
> This should in theory work for most scenarios.
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