This still doesn't quite add up to me. What's the consequence of not alter-var-root'ing maker-var# if def-form is a defmacro? Why would def-form be a defmacro in the first place?
Also, I don't think you've given the example of the actual call that gave the error, only the macroexpansion of it. Can you provide that as well? thanks, Cyrus On Sep 10, 2010, at 10:30 AM, joshua-choi wrote: > I've solved the problem. I found that it only occurred when general- > defmaker was called with its forms argument containing another general- > defmaker call with def-form being defmacro. Thus, in the inner general- > defmaker call, the *result* of (NamedRule. (delay …)) was embedded > into a defmacro call, resulting in the error. > > The solution was to change > (alter-var-root maker-var# named-rule-maker ~rule-type-kw) > to > (when (= '~def-form `defmacro) > (alter-var-root maker-var# named-rule-maker ~rule-type-kw)) > > Thanks, everyone for your help. > > joshua-choi wrote: >> That ought to be correct, but I can't reconcile that with the error >> message. Doesn't the "Can't embed object in code, maybe print-dup not >> defined" error only appear in macros, when some object being spliced >> into a macro's expansion is not a basic Clojure form? Yet, you are >> correct, commenting out that function call in the macro does prevent >> the error. I don't understand it. >> >> Konrad Hinsen wrote: >>> On 10 Sep 2010, at 03:11, joshua-choi wrote: >>> >>>> And here is a full macro-expansion of the call at which the error >>>> happens: >>>> >>>> http://gist.github.com/572879 >>> >>> If I understand the comment ("the following form is the culprit...") >>> correctly, it's not the macroexpansion that fails, but the evaluation >>> of the resulting expression. Is that correct? In that case, it's not >>> really a macro problem, but a problem with a complex use case of alter- >>> var-root. >>> >>> Konrad. > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your > first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
