Nothing is wrong with do block. I just thought maybe there is some trick....
Fair enough. On Tuesday, 21 August 2012 15:55:04 UTC+1, lpetit wrote: > > Hello, > > What's wrong with having 2 fns inside the top level do ? > > In Clojure, top level dos are split so that their children forms are > evaluated in sequence, as if you would have written them without the do. > > HTH, > > -- > Laurent > > 2012/8/21 Maris <maris.o...@gmail.com <javascript:>> > >> I want a macro that generates two defn's. >> >> (defn vote-suspend [this] (deref (.state this))) >> (defn vote-resume [this state] (reset! (.state this) state)) >> >> I have written this: >> >> (defmacro suspendable [prefix] >> `(do (defn ~(symbol (str prefix "suspend")) [~'this] (deref (.state >> ~'this))) >> (defn ~(symbol (str prefix "resume")) [~'this ~'state] (reset! >> (.state ~'this) ~'state)))) >> >> It works but it has both defn's in *do *block*.* >> >> (*do* (clojure.core/defn vote-suspend [this] (clojure.core/deref (.state >> this))) (clojure.core/defn vote-resume [this state] (clojure.core/reset! >> (.state this) state))) >> >> >> is it possible to generate defn's without *do* ? >> >> >> I tried this: >> >> (defmacro suspendable [prefix] >> (list `(defn ~(symbol (str prefix "suspend")) [~'this] (deref (.state >> ~'this))) >> `(defn ~(symbol (str prefix "resume")) [~'this ~'state] (reset! >> (.state ~'this) ~'state)))) >> >> But it creates parentheses around defn: >> >> user> (macroexpand-1 '(suspendable vote-)) >> ((clojure.core/defn vote-suspend [this] (clojure.core/deref (.state >> this))) (clojure.core/defn vote-resume [this state] (clojure.core/reset! >> (.state this) state))) >> >> >> Maybe splice it? >> >> (defmacro suspendable [prefix] >> ~@(list `(defn ~(symbol (str prefix "suspend")) [~'this] (deref (.state >> ~'this))) >> `(defn ~(symbol (str prefix "resume")) [~'this ~'state] (reset! >> (.state ~'this) ~'state)))) >> >> *Attempting to call unbound fn: #'clojure.core/unquote-splicing* >> >> *unquote-splicing* must be inside syntax-quote block, right ? >> >> This creates parentheses again: >> >> (defmacro suspendable [prefix] >> `( ~@(list `(defn ~(symbol (str prefix "suspend")) [~'this] (deref >> (.state ~'this))) >> `(defn ~(symbol (str prefix "resume")) [~'this ~'state] >> (reset! (.state ~'this) ~'state))))) >> >> Is it not possible to return two sexp's from a macro ? >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clo...@googlegroups.com<javascript:> >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+u...@googlegroups.com <javascript:> >> 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
