Without digging into the implementation code: shouldn't the expansion for e.g. clojure.core/letfn return a vector and not a list for the binding ?
((G__1840 [a b c] (print a))) should be (vector (G__1840 [a b c] (print a))) or [(G__1840 [a b c] (print a))] ? Maybe clojure.core/letfn is currently permissive on this, but this is an undocumented implementation detail (the doc for letfn says : "Takes a vector of function specs and a body, and generates a set of bindings of functions to their names. All of the names are available in all of the definitions of the functions, as well as the body.") Your maybe doing a similar error in other parts of the code where the implementation detail are closer to the public API, and that may explain your error ? 2009/9/8 Gorsal <s...@tewebs.com> > > #<CompilerException java.lang.Exception: Unsupported binding form: > (G__1852 2) (NO_SOURCE_FILE:1182)> > So, I'm porting Paul Grahm's condlet macro to clojure. I've done it > except when i evaluate it it gives me the above error. However, when I > macroexpand-1 it it evaluates fine. > > The only difference between evaluating the macroexpansion vs the other > way is that the (gensym) vars are now regular variables in the > macroexpanded version. However, i don't see how this can affect it. > > (condlet [((= 2 2) (a 2) (b 3)) > ((= 3 4) (a 1) (b 4) (c 34))] > (print a)) --> throws error > > macroexpanded version where lcond is equivalent to a lisp cond and > same for llet. This evaluates > just fine! > > (clojure.core/letfn > ((G__1840 [a b c] (print a))) > (user/lcond > ((= 2 2) > (user/llet > (G__1841 G__1842 G__1843) > (user/llet ((G__1841 2) (G__1842 3)) (G__1840 G__1841 G__1842 > G__1843)))) > ((= 3 4) > (user/llet > (G__1841 G__1842 G__1843) > (user/llet > ((G__1841 1) (G__1842 4) (G__1843 34)) > (G__1840 G__1841 G__1842 G__1843)))))) > > What am i missing here? I've heard of this same error with cond-let > and the guy changed it due to the 'new everything that lets must have > bracket regime'? What's this? > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
