Re: Little namespace question
BG, The macro doesn't seem to do the trick. The function X is interned in the target namespace, but: user= (def image (eval-in (X 400 400) clevolution.version.version0-1-1)) CompilerException java.lang.RuntimeException: Unable to resolve symbol: X in this context, compiling:(NO_SOURCE_PATH:1) On Mon, Dec 17, 2012 at 11:53 PM, Alan Shaw noden...@gmail.com wrote: Oh yes, the something.something is fixed so I can just prepend it, thanks. (Hadn't noticed your macro takes the ns as a string!) -A On Mon, Dec 17, 2012 at 11:47 PM, Baishampayan Ghose b.gh...@gmail.comwrote: Alan, What you're asking for is to derive the ns clojure.core given only core. Not sure if that's possible. The namespace constitutes the whole dotted structure and not just the last component, I am afraid. If the actual ns is something.something.version-0-1-1, then you need the string something.something.version-0-1-1 and not just version-0-1-1 [unless of course you have some other way of deriving it from info that's embedded in _your_ code or structure thereof]. -BG On Tue, Dec 18, 2012 at 1:10 PM, Alan Shaw noden...@gmail.com wrote: Thanks BG, I'm trying that. But I don't think it addresses how to get from the string version-0-1-1 to the namespace something.something.version-0-1-1. How can I do that? -A On Mon, Dec 17, 2012 at 11:26 PM, Baishampayan Ghose b.gh...@gmail.com wrote: Alan, Something like this might work for you - (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form as string ns - Target namespace as string [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval '~(read-string code))] (in-ns '~(ns-name *ns*)) ret#))) Warning - I haven't really tested this code. -BG On Tue, Dec 18, 2012 at 12:37 PM, Alan Shaw noden...@gmail.com wrote: Thanks, Las! Ok say I have a file in which there is string such as (- (atan (bw-noise 902 2 0.7604615575402431 400 400)) (read-image-from-file \images/Dawn_on_Callipygea.png\)) and another version-0-0-1 and I have a namespace version-0-0-1 into which functions named atan etc. are all :referred. I want to evaluate the expression in that particular context, and not remain there when I'm done. -A On Mon, Dec 17, 2012 at 11:00 PM, László Török ltoro...@gmail.com wrote: ah, sorry, it's a bit early for me (in-ns (ns-name user-ns)) if you could post a simple example for the second part of your question I maybe able to help. Las Alan Shaw 2012. december 18., kedd napon a következőt írta: Ah no, that puts me in a new user-ns namespace! Not what I wanted! On Mon, Dec 17, 2012 at 10:51 PM, László Török ltoro...@gmail.com wrote: Try (in-ns 'user-ns) Las On Dec 18, 2012 7:50 AM, Alan Shaw noden...@gmail.com wrote: user= *ns* #Namespace user user= (def user-ns *ns*) #'user/user-ns user= user-ns #Namespace user user= (in-ns user-ns) ClassCastException clojure.lang.Namespace cannot be cast to clojure.lang.Symbol clojure.lang.RT$1.invoke (RT.java:226) It appears I'm not understanding how namespaces are represented. Also, is it just wrong of me to want to remember a namespace I was working in and try to go back to it later? The slightly larger context is: I'm saving an s-expression with unqualified names in it into a file as a string. Also saving a string indicating the name of the environment in which that string should be (read and) eval'ed so that the names will resolve to the appropriate functions. Advice on managing this would be appreciated. -Alan Shaw -- 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 -- 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
Re: Little namespace question
Do you have target ns clevolution.version.version0-1-1 required? -BG On Tue, Dec 18, 2012 at 1:38 PM, Alan Shaw noden...@gmail.com wrote: BG, The macro doesn't seem to do the trick. The function X is interned in the target namespace, but: user= (def image (eval-in (X 400 400) clevolution.version.version0-1-1)) CompilerException java.lang.RuntimeException: Unable to resolve symbol: X in this context, compiling:(NO_SOURCE_PATH:1) On Mon, Dec 17, 2012 at 11:53 PM, Alan Shaw noden...@gmail.com wrote: Oh yes, the something.something is fixed so I can just prepend it, thanks. (Hadn't noticed your macro takes the ns as a string!) -A On Mon, Dec 17, 2012 at 11:47 PM, Baishampayan Ghose b.gh...@gmail.com wrote: Alan, What you're asking for is to derive the ns clojure.core given only core. Not sure if that's possible. The namespace constitutes the whole dotted structure and not just the last component, I am afraid. If the actual ns is something.something.version-0-1-1, then you need the string something.something.version-0-1-1 and not just version-0-1-1 [unless of course you have some other way of deriving it from info that's embedded in _your_ code or structure thereof]. -BG On Tue, Dec 18, 2012 at 1:10 PM, Alan Shaw noden...@gmail.com wrote: Thanks BG, I'm trying that. But I don't think it addresses how to get from the string version-0-1-1 to the namespace something.something.version-0-1-1. How can I do that? -A On Mon, Dec 17, 2012 at 11:26 PM, Baishampayan Ghose b.gh...@gmail.com wrote: Alan, Something like this might work for you - (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form as string ns - Target namespace as string [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval '~(read-string code))] (in-ns '~(ns-name *ns*)) ret#))) Warning - I haven't really tested this code. -BG On Tue, Dec 18, 2012 at 12:37 PM, Alan Shaw noden...@gmail.com wrote: Thanks, Las! Ok say I have a file in which there is string such as (- (atan (bw-noise 902 2 0.7604615575402431 400 400)) (read-image-from-file \images/Dawn_on_Callipygea.png\)) and another version-0-0-1 and I have a namespace version-0-0-1 into which functions named atan etc. are all :referred. I want to evaluate the expression in that particular context, and not remain there when I'm done. -A On Mon, Dec 17, 2012 at 11:00 PM, László Török ltoro...@gmail.com wrote: ah, sorry, it's a bit early for me (in-ns (ns-name user-ns)) if you could post a simple example for the second part of your question I maybe able to help. Las Alan Shaw 2012. december 18., kedd napon a következőt írta: Ah no, that puts me in a new user-ns namespace! Not what I wanted! On Mon, Dec 17, 2012 at 10:51 PM, László Török ltoro...@gmail.com wrote: Try (in-ns 'user-ns) Las On Dec 18, 2012 7:50 AM, Alan Shaw noden...@gmail.com wrote: user= *ns* #Namespace user user= (def user-ns *ns*) #'user/user-ns user= user-ns #Namespace user user= (in-ns user-ns) ClassCastException clojure.lang.Namespace cannot be cast to clojure.lang.Symbol clojure.lang.RT$1.invoke (RT.java:226) It appears I'm not understanding how namespaces are represented. Also, is it just wrong of me to want to remember a namespace I was working in and try to go back to it later? The slightly larger context is: I'm saving an s-expression with unqualified names in it into a file as a string. Also saving a string indicating the name of the environment in which that string should be (read and) eval'ed so that the names will resolve to the appropriate functions. Advice on managing this would be appreciated. -Alan Shaw -- 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 -- You received this message because you are subscribed to the Google
Re: Little namespace question
Now I do, and the macro worked! I believe I have a problem using the macro from a function, but leaving that for tomorrow. Thanks BG! -A On Tue, Dec 18, 2012 at 12:19 AM, Baishampayan Ghose b.gh...@gmail.comwrote: Do you have target ns clevolution.version.version0-1-1 required? -BG On Tue, Dec 18, 2012 at 1:38 PM, Alan Shaw noden...@gmail.com wrote: BG, The macro doesn't seem to do the trick. The function X is interned in the target namespace, but: user= (def image (eval-in (X 400 400) clevolution.version.version0-1-1)) CompilerException java.lang.RuntimeException: Unable to resolve symbol: X in this context, compiling:(NO_SOURCE_PATH:1) On Mon, Dec 17, 2012 at 11:53 PM, Alan Shaw noden...@gmail.com wrote: Oh yes, the something.something is fixed so I can just prepend it, thanks. (Hadn't noticed your macro takes the ns as a string!) -A On Mon, Dec 17, 2012 at 11:47 PM, Baishampayan Ghose b.gh...@gmail.com wrote: Alan, What you're asking for is to derive the ns clojure.core given only core. Not sure if that's possible. The namespace constitutes the whole dotted structure and not just the last component, I am afraid. If the actual ns is something.something.version-0-1-1, then you need the string something.something.version-0-1-1 and not just version-0-1-1 [unless of course you have some other way of deriving it from info that's embedded in _your_ code or structure thereof]. -BG On Tue, Dec 18, 2012 at 1:10 PM, Alan Shaw noden...@gmail.com wrote: Thanks BG, I'm trying that. But I don't think it addresses how to get from the string version-0-1-1 to the namespace something.something.version-0-1-1. How can I do that? -A On Mon, Dec 17, 2012 at 11:26 PM, Baishampayan Ghose b.gh...@gmail.com wrote: Alan, Something like this might work for you - (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form as string ns - Target namespace as string [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval '~(read-string code))] (in-ns '~(ns-name *ns*)) ret#))) Warning - I haven't really tested this code. -BG On Tue, Dec 18, 2012 at 12:37 PM, Alan Shaw noden...@gmail.com wrote: Thanks, Las! Ok say I have a file in which there is string such as (- (atan (bw-noise 902 2 0.7604615575402431 400 400)) (read-image-from-file \images/Dawn_on_Callipygea.png\)) and another version-0-0-1 and I have a namespace version-0-0-1 into which functions named atan etc. are all :referred. I want to evaluate the expression in that particular context, and not remain there when I'm done. -A On Mon, Dec 17, 2012 at 11:00 PM, László Török ltoro...@gmail.com wrote: ah, sorry, it's a bit early for me (in-ns (ns-name user-ns)) if you could post a simple example for the second part of your question I maybe able to help. Las Alan Shaw 2012. december 18., kedd napon a következőt írta: Ah no, that puts me in a new user-ns namespace! Not what I wanted! On Mon, Dec 17, 2012 at 10:51 PM, László Török ltoro...@gmail.com wrote: Try (in-ns 'user-ns) Las On Dec 18, 2012 7:50 AM, Alan Shaw noden...@gmail.com wrote: user= *ns* #Namespace user user= (def user-ns *ns*) #'user/user-ns user= user-ns #Namespace user user= (in-ns user-ns) ClassCastException clojure.lang.Namespace cannot be cast to clojure.lang.Symbol clojure.lang.RT$1.invoke (RT.java:226) It appears I'm not understanding how namespaces are represented. Also, is it just wrong of me to want to remember a namespace I was working in and try to go back to it later? The slightly larger context is: I'm saving an s-expression with unqualified names in it into a file as a string. Also saving a string indicating the name of the environment in which that string should be (read and) eval'ed so that the names will resolve to the appropriate functions. Advice on managing this would be appreciated. -Alan Shaw -- 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
Re: Clojure Full Syntactical Reference
It's a feature of the REPLy NREPL client. See https://github.com/trptcolin/reply/blob/master/src/clj/reply/initialization.clj how it works so you can emulate it. On Tuesday, December 18, 2012 5:10:00 AM UTC+1, Karim A. Nassar wrote: When using nrepl in emacs (cdoc fn) emits: CompilerException java.lang.RuntimeException: Unable to resolve symbol: cdoc in this context, compiling:(NO_SOURCE_PATH:1) However, in lein repl I see: Loading clojuredocs-client... How do I make nrepl as smart as lein repl? On Fri, Dec 14, 2012 at 10:08 PM, Andy Fingerhut andy.fi...@gmail.comjavascript: wrote: I would recommend checking out http://clojuredocs.org If you use Leiningen version 2, you can get similar output with these two commands: lein repl user= (doc first) user= (cdoc first) doc gives the doc string built into Clojure. cdoc gives the examples from ClojureDocs.org for that symbol, as long as you have an Internet connection. Andy On Dec 14, 2012, at 3:40 PM, lin...@redhandgaming.net javascript:wrote: I'm learning Clojure, and I learn best by jumping in. I'm interested in using Noir. Noir has a full API reference, so when I'm reading other people's Noir code, I can just look up the exact function and see what it does. I can't find a similar thing for Clojure. I'm looking through other people's Clojure code. I see something like (keyword (or (first m) :dev)) and I don't really know where to start understanding this. I know enough to know that keyword, or, and first are all functions - and with a google search or two, I can figure out what 'first' does. But I can't easily find out what 'or' and 'keyword' do, because when I google those things, I get all kinds of screwy results, completely unrelated to what I'm trying to find out. Where can I find, or does there exist, a place where I can view all Clojure's built in functions with a short description of their arguments and what they do? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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
Re: Clojure Full Syntactical Reference
I wonder if this couldn't have been better implemented as nrepl middleware. On Tuesday, December 18, 2012 10:34:01 AM UTC+1, Niels van Klaveren wrote: It's a feature of the REPLy NREPL client. See https://github.com/trptcolin/reply/blob/master/src/clj/reply/initialization.cljhow it works so you can emulate it. On Tuesday, December 18, 2012 5:10:00 AM UTC+1, Karim A. Nassar wrote: When using nrepl in emacs (cdoc fn) emits: CompilerException java.lang.RuntimeException: Unable to resolve symbol: cdoc in this context, compiling:(NO_SOURCE_PATH:1) However, in lein repl I see: Loading clojuredocs-client... How do I make nrepl as smart as lein repl? On Fri, Dec 14, 2012 at 10:08 PM, Andy Fingerhut andy.fi...@gmail.comwrote: I would recommend checking out http://clojuredocs.org If you use Leiningen version 2, you can get similar output with these two commands: lein repl user= (doc first) user= (cdoc first) doc gives the doc string built into Clojure. cdoc gives the examples from ClojureDocs.org for that symbol, as long as you have an Internet connection. Andy On Dec 14, 2012, at 3:40 PM, lin...@redhandgaming.net wrote: I'm learning Clojure, and I learn best by jumping in. I'm interested in using Noir. Noir has a full API reference, so when I'm reading other people's Noir code, I can just look up the exact function and see what it does. I can't find a similar thing for Clojure. I'm looking through other people's Clojure code. I see something like (keyword (or (first m) :dev)) and I don't really know where to start understanding this. I know enough to know that keyword, or, and first are all functions - and with a google search or two, I can figure out what 'first' does. But I can't easily find out what 'or' and 'keyword' do, because when I google those things, I get all kinds of screwy results, completely unrelated to what I'm trying to find out. Where can I find, or does there exist, a place where I can view all Clojure's built in functions with a short description of their arguments and what they do? -- 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 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 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
Question about re-find
Hi, I've tinkered with clojures regexes and found a behavior I do not understand. (def regex a(.*?)b(.*?)c(.*?)) ;; The RE string, a little strange but valid (def input abbbcc) ;; The input, should match completely (import '[java.util.regex Pattern Matcher]);; Fst the direct java way (def j-pattern (Pattern/compile regex)) (def j-matcher (.matcher j-pattern input)) (.matches j-matcher) ;; Ok (def j-res ;; [abbbcc bb c] (mapv (fn [g] (.group j-matcher g)) (range (inc (.groupCount j-matcher) (def clj-pattern (re-pattern regex)) ;; Now clojure (def clj-res (re-find clj-pattern input)) (= (.pattern clj-pattern) (.pattern j-pattern)) ;; Do we really use same RE? (For me: yes) (= clj-res j-res) ;; but the results differ: ;; clj-res [abbbc bb ] is missing the last c Could someone please explain what I'm missing? Thanks -- 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
Re: Question about re-find
Try these at the REPL: (source re-find) (source re-matches) re-matches is closer to what you did in Java than re-find, which does something different (find the first match in the string, as opposed to determining whether the entire string matches the regex). Andy On Dec 18, 2012, at 1:32 AM, vernam wrote: Hi, I've tinkered with clojures regexes and found a behavior I do not understand. (def regex a(.*?)b(.*?)c(.*?)) ;; The RE string, a little strange but valid (def input abbbcc) ;; The input, should match completely (import '[java.util.regex Pattern Matcher]);; Fst the direct java way (def j-pattern (Pattern/compile regex)) (def j-matcher (.matcher j-pattern input)) (.matches j-matcher) ;; Ok (def j-res ;; [abbbcc bb c] (mapv (fn [g] (.group j-matcher g)) (range (inc (.groupCount j-matcher) (def clj-pattern (re-pattern regex)) ;; Now clojure (def clj-res (re-find clj-pattern input)) (= (.pattern clj-pattern) (.pattern j-pattern)) ;; Do we really use same RE? (For me: yes) (= clj-res j-res) ;; but the results differ: ;; clj-res [abbbc bb ] is missing the last c Could someone please explain what I'm missing? -- 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
Re: How to structure a Clojure day for noobs?
Good point. I really would like themselves to be able to set up their own environment. I think it gives them a sense of control. However, as a fallback, it would be great with a virtual machine with everything working. I'll consider that. I believe you can get a similar level of interactivity in both IntelliJ and Eclipse, but I agree that Emacs is still the master. On Tuesday, 18 December 2012 04:31:32 UTC+1, Peter wrote: 1. install Leiningen and learn the basics 2. get everyone an editing environment, with the option of using either Emacs, IntelliJ, or Eclipse I would have people do this in advance, or provide a canned environment that has a better chance of just working. There's decent odds that these two steps will eat up a bunch of your time and leave people feeling left out when their install/editor/integration is not quite right. Personally I found the C-x-e of evaluating an s-exp in emacs to be the magic that makes clojure a bajillionty times better than any other programming language, so I'm partial to something like the emacs starter kit. But something like labrepl or eclipse+counterclockwise might be easier for people to start with. On Mon, Dec 17, 2012 at 3:26 AM, Marko Topolnik marko.t...@gmail.comjavascript: wrote: I think, however, that there is a risk of a disconnect, where newcomers don't really grasp that there is a JVM running and that code is actually compiled and injected into it, and that it's for real. They are used to mickey mouse interactive tools that don't provide the real thing, and struggle to bridge the apparent gap between running code in the REPL and properly compiling and running files. There is no gap, but one needs to explain that, I think. I think this is a pivot point for everything in Clojure. The harder the mental switch, the more important to make it right away. Without understanding that, it will be very hard to maintain a clear picture of how everything fits together, especially when you start changing functions and reloading them. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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 -- The king’s heart is like a stream of water directed by the Lord; He guides it wherever He pleases. -- 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
Re: Belgian Clojure base meetup?
Liege would be not too far -- 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
Re: [ANN] tools.namespace 0.2.2 and Flow 0.1.0
http://dev.clojure.org/jira/browse/TNS-1 is the reason why I did bultitude. It was an important bug that was never addressed, and probably still hasn't been addressed. Other people have also added relatively complex classpath features to it as well, and since it isn't a contrib project you can contribute to it without having to sign a CA and do the Jira patch parade. Because of these things and especially because of the latter I'll definitely continue maintaining bultitude. I'm interested in the new features added to tools.namespace, and will definitely look into them and maybe take whatever makes sense over to bultitude. On Tuesday, December 18, 2012 12:02:55 AM UTC-6, Mikera wrote: Hi Stuart, Re: tools.namespace, I've found some similar functions in the bultitude library (https://github.com/Raynes/bultitude/tree/master/src/bultitude). Apparently it addresses specific needs that clojure.tools.namespace did not provide. Is one of these recommended over the other, or is there a plan to merge these so that we get the best of both? On Friday, 14 December 2012 21:52:40 UTC+8, Stuart Sierra wrote: Changelog more info: https://github.com/clojure/tools.namespace -- 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
Re: [ANN] tools.namespace 0.2.2 and Flow 0.1.0
Actually, scratch that first one. Looks like Stuart did finally apply the patch. Other reasons for bultitude's existence still apply. On Tuesday, December 18, 2012 6:06:40 AM UTC-6, Anthony Grimes wrote: http://dev.clojure.org/jira/browse/TNS-1 is the reason why I did bultitude. It was an important bug that was never addressed, and probably still hasn't been addressed. Other people have also added relatively complex classpath features to it as well, and since it isn't a contrib project you can contribute to it without having to sign a CA and do the Jira patch parade. Because of these things and especially because of the latter I'll definitely continue maintaining bultitude. I'm interested in the new features added to tools.namespace, and will definitely look into them and maybe take whatever makes sense over to bultitude. On Tuesday, December 18, 2012 12:02:55 AM UTC-6, Mikera wrote: Hi Stuart, Re: tools.namespace, I've found some similar functions in the bultitude library (https://github.com/Raynes/bultitude/tree/master/src/bultitude). Apparently it addresses specific needs that clojure.tools.namespace did not provide. Is one of these recommended over the other, or is there a plan to merge these so that we get the best of both? On Friday, 14 December 2012 21:52:40 UTC+8, Stuart Sierra wrote: Changelog more info: https://github.com/clojure/tools.namespace -- 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
Re: Belgian Clojure base meetup?
I'd love to see a Belgian Clojure meetup! I'm from Antwerp. Kind regards, Frederik -- 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
gen-interface and deftype with types, compilation problem
Hello,
Consider the following code
(gen-interface
:name IntStack
:methods [[stackPeek [] int]
[stackPush [int] void]
[stackPop [] int]
[stackDepth [] int]])
(deftype IntStackImpl
[^{:tag ints :unsynchronized-mutable true} data
^{:tag int :unsynchronized-mutable true} depth]
IntStack
(stackPeek [this]
(aget data depth))
(stackPush [this value]
(when (= (inc depth) (alength data))
(let [data-length (alength data)
new-data (int-array (* data-length 2))]
(System/arraycopy data 0 new-data 0 data-length)
(set! data new-data)))
(set! depth (inc depth))
(aset data depth value))
(stackPop [this]
(if ( depth 0)
(let [value (aget data depth)]
(set! depth (dec depth))
value)
(throw (IllegalStateException. Stack is already empty!
(stackDepth [this]
depth))
This is very simple stack implementation over plain java array. It does not
compile with the following message:
CompilerException java.lang.VerifyError: (class:
clojure/data/xml/IntStackImpl, method: stackPop signature: ()I) Expecting
to find integer on stack
However, when I replace the body of stackPop with, say, plain zero literal
0, the method seems to pass the compilation, because then I'm getting
similar error on stackPush method instead.
Placing type hints inside stackPop method does not work (in fact, it is
even an error to place them, say, on value local binding).
What am I doing wrong here? How to make the class compile?
Cheers,
Vladimir.
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Re: gen-interface and deftype with types, compilation problem
I don't think you can type hint a field as a primitive array.
On Tuesday, December 18, 2012, Vladimir Matveev wrote:
Hello,
Consider the following code
(gen-interface
:name IntStack
:methods [[stackPeek [] int]
[stackPush [int] void]
[stackPop [] int]
[stackDepth [] int]])
(deftype IntStackImpl
[^{:tag ints :unsynchronized-mutable true} data
^{:tag int :unsynchronized-mutable true} depth]
IntStack
(stackPeek [this]
(aget data depth))
(stackPush [this value]
(when (= (inc depth) (alength data))
(let [data-length (alength data)
new-data (int-array (* data-length 2))]
(System/arraycopy data 0 new-data 0 data-length)
(set! data new-data)))
(set! depth (inc depth))
(aset data depth value))
(stackPop [this]
(if ( depth 0)
(let [value (aget data depth)]
(set! depth (dec depth))
value)
(throw (IllegalStateException. Stack is already empty!
(stackDepth [this]
depth))
This is very simple stack implementation over plain java array. It does
not compile with the following message:
CompilerException java.lang.VerifyError: (class:
clojure/data/xml/IntStackImpl, method: stackPop signature: ()I) Expecting
to find integer on stack
However, when I replace the body of stackPop with, say, plain zero literal
0, the method seems to pass the compilation, because then I'm getting
similar error on stackPush method instead.
Placing type hints inside stackPop method does not work (in fact, it is
even an error to place them, say, on value local binding).
What am I doing wrong here? How to make the class compile?
Cheers,
Vladimir.
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core.logic - explaining transitive relationships
Hello, With the code below you can query transitive relationships between entities successfully. Is there any way to use core.logic explain the relationship? Specifically, is there any way to write a function explain so that: (explain :pitbull :chordate) will give you: [:pitbull :dog] [:dog :mammal] [:mammal :chordate] Thanks, Stathis Code: (ns test.logic (:refer-clojure :exclude [==]) (:use clojure.core.logic)) (defrel is-a Entity Parent) (fact is-a :pitbull :dog) (fact is-a :dog :mammal) (fact is-a :mammal :chordate) (fact is-a :chordate :animal) (defn transitive [r] (fn t [p1 p2] (fresh [intermediate] (conde ((r p1 p2)) ((r p1 intermediate) (t intermediate p2)) (defn iso [entity parent] ((transitive is-a) entity parent)) In the REPL: (run* [q] (iso :dog :animal)) (_.0) -- 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
Re: Belgian Clojure base meetup?
Hello, I'm from Namur. Such a meeting would be fantastic. Belgium is not very large. I can of course get around. François Le lundi 17 décembre 2012 19:09:56 UTC+1, Sébastien Wagener a écrit : Hi Thomas, I'm from Luxembourg. If the meetup isn't too far away from the border, I would be interested. Sébastien 2012/12/16 Thomas Goossens con...@thomasgoossens.be javascript: If you are from Belgium, Don't get too excited - yet - . I've been wondering about organising a small meetup somewhere next semester. (I peeked at our northern neighbours: http://www.meetup.com/The-Amsterdam-Clojure-Meetup-Group/events/88386392/ ) Though, I have no idea at all how many people here in Belgium are actively using clojure and would be interested in such a thing. Its not a plan, just being curious and checking whether it would be worth the time. So if you are from Belgium, give me a shout! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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
Re: core.logic - explaining transitive relationships
Stathis Sideris side...@gmail.com writes: Hi Stathis, With the code below you can query transitive relationships between entities successfully. Is there any way to use core.logic explain the relationship? Specifically, is there any way to write a function explain so that: (explain :pitbull :chordate) will give you: [:pitbull :dog] [:dog :mammal] [:mammal :chordate] Can't you define `iso` with 3 args, one being a list of intermediates? E.g., something like (defn iso [entity is parent] (conde [(is-a entity parent) (== is ())] [(fresh [i nis] (is-a entity i) (conso i nis is) (iso i nis parent))])) Then you could run it like: test.logic (run* [q] (iso :pitbull q :animal)) ((:dog :mammal :chordate)) Bye, Tassilo -- 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
Re: core.logic - explaining transitive relationships
Hello David, Yes, I wasn't expecting for this to be built-in. Your example is exactly what I was looking for, thanks a lot! I'll to need to spend some time to figure it out :-) Stathis On Tuesday, 18 December 2012 15:52:47 UTC, David Nolen wrote: There is no general explain functionality. However the following simple solution should give you some ideas: (defrel is-a Entity Parent) (fact is-a :pitbull :dog) (fact is-a :dog :mammal) (fact is-a :mammal :chordate) (fact is-a :chordate :animal) (defn transitive [r] (fn t ([x z] (t x z (lvar))) ([x z path] (fresh [y] (conde [(r x z) (== path '())] [(fresh [a d] (r x y) (conso a d path) (== a [x y]) (t y z d))]) (defn iso ([entity parent] ((transitive is-a) entity parent)) ([entity parent path] ((transitive is-a) entity parent path))) (comment (run* [q] (iso :dog :animal q)) ) On Tue, Dec 18, 2012 at 9:06 AM, Stathis Sideris sid...@gmail.comjavascript: wrote: Hello, With the code below you can query transitive relationships between entities successfully. Is there any way to use core.logic explain the relationship? Specifically, is there any way to write a function explain so that: (explain :pitbull :chordate) will give you: [:pitbull :dog] [:dog :mammal] [:mammal :chordate] Thanks, Stathis Code: (ns test.logic (:refer-clojure :exclude [==]) (:use clojure.core.logic)) (defrel is-a Entity Parent) (fact is-a :pitbull :dog) (fact is-a :dog :mammal) (fact is-a :mammal :chordate) (fact is-a :chordate :animal) (defn transitive [r] (fn t [p1 p2] (fresh [intermediate] (conde ((r p1 p2)) ((r p1 intermediate) (t intermediate p2)) (defn iso [entity parent] ((transitive is-a) entity parent)) In the REPL: (run* [q] (iso :dog :animal)) (_.0) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clo...@googlegroups.comjavascript: 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
Re: core.logic - explaining transitive relationships
Thanks for this. I didn't think about that! On Tuesday, 18 December 2012 15:51:55 UTC, Tassilo Horn wrote: Stathis Sideris sid...@gmail.com javascript: writes: Hi Stathis, With the code below you can query transitive relationships between entities successfully. Is there any way to use core.logic explain the relationship? Specifically, is there any way to write a function explain so that: (explain :pitbull :chordate) will give you: [:pitbull :dog] [:dog :mammal] [:mammal :chordate] Can't you define `iso` with 3 args, one being a list of intermediates? E.g., something like (defn iso [entity is parent] (conde [(is-a entity parent) (== is ())] [(fresh [i nis] (is-a entity i) (conso i nis is) (iso i nis parent))])) Then you could run it like: test.logic (run* [q] (iso :pitbull q :animal)) ((:dog :mammal :chordate)) Bye, Tassilo -- 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
Re: core.logic - explaining transitive relationships
;; there is a transitive relationship between x z if there is a ;; relationship between x some y and some y z (defn transitive [r] (fn t ;; if passed only two args create the path logic var ([x z] (t x z (lvar))) ;; take an x, z, and a path from x to z ([x z path] (fresh [y] (conde ;; there is a direct relationship between x z ;; update the path [(r x z) (== path (list [x z]))] ;; there is not a direct relationship between x z ;; try some y that has a relationship with x, update the path [(fresh [a d] (r x y) (conso a d path) (== a [x y]) ;; prove there is a relationship between y z (t y z d))]) (defn iso ([entity parent] ((transitive is-a) entity parent)) ([entity parent path] ((transitive is-a) entity parent path))) On Tue, Dec 18, 2012 at 11:28 AM, Stathis Sideris side...@gmail.com wrote: Hello David, Yes, I wasn't expecting for this to be built-in. Your example is exactly what I was looking for, thanks a lot! I'll to need to spend some time to figure it out :-) Stathis On Tuesday, 18 December 2012 15:52:47 UTC, David Nolen wrote: There is no general explain functionality. However the following simple solution should give you some ideas: (defrel is-a Entity Parent) (fact is-a :pitbull :dog) (fact is-a :dog :mammal) (fact is-a :mammal :chordate) (fact is-a :chordate :animal) (defn transitive [r] (fn t ([x z] (t x z (lvar))) ([x z path] (fresh [y] (conde [(r x z) (== path '())] [(fresh [a d] (r x y) (conso a d path) (== a [x y]) (t y z d))]) (defn iso ([entity parent] ((transitive is-a) entity parent)) ([entity parent path] ((transitive is-a) entity parent path))) (comment (run* [q] (iso :dog :animal q)) ) On Tue, Dec 18, 2012 at 9:06 AM, Stathis Sideris sid...@gmail.comwrote: Hello, With the code below you can query transitive relationships between entities successfully. Is there any way to use core.logic explain the relationship? Specifically, is there any way to write a function explain so that: (explain :pitbull :chordate) will give you: [:pitbull :dog] [:dog :mammal] [:mammal :chordate] Thanks, Stathis Code: (ns test.logic (:refer-clojure :exclude [==]) (:use clojure.core.logic)) (defrel is-a Entity Parent) (fact is-a :pitbull :dog) (fact is-a :dog :mammal) (fact is-a :mammal :chordate) (fact is-a :chordate :animal) (defn transitive [r] (fn t [p1 p2] (fresh [intermediate] (conde ((r p1 p2)) ((r p1 intermediate) (t intermediate p2)) (defn iso [entity parent] ((transitive is-a) entity parent)) In the REPL: (run* [q] (iso :dog :animal)) (_.0) -- 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 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 For more options, visit this group at http://groups.google.com/**group/clojure?hl=enhttp://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 -- 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
Re: gen-interface and deftype with types, compilation problem
Well, it is news for me since it is not documented anywhere. Why is this
so? BTW, typehinting value in '(let [value (aget data depth)]' binding
gives an error Can't type hint a local with a primitive initializer so I
think since this value considered primitive then I actually can hint the
fields to be primitive arrays.
Nonetheless, it does not look like that problem is in the field array:
wrapping aget form with (int) does not help.
вторник, 18 декабря 2012 г., 17:46:14 UTC+4 пользователь David Nolen
написал:
I don't think you can type hint a field as a primitive array.
On Tuesday, December 18, 2012, Vladimir Matveev wrote:
Hello,
Consider the following code
(gen-interface
:name IntStack
:methods [[stackPeek [] int]
[stackPush [int] void]
[stackPop [] int]
[stackDepth [] int]])
(deftype IntStackImpl
[^{:tag ints :unsynchronized-mutable true} data
^{:tag int :unsynchronized-mutable true} depth]
IntStack
(stackPeek [this]
(aget data depth))
(stackPush [this value]
(when (= (inc depth) (alength data))
(let [data-length (alength data)
new-data (int-array (* data-length 2))]
(System/arraycopy data 0 new-data 0 data-length)
(set! data new-data)))
(set! depth (inc depth))
(aset data depth value))
(stackPop [this]
(if ( depth 0)
(let [value (aget data depth)]
(set! depth (dec depth))
value)
(throw (IllegalStateException. Stack is already empty!
(stackDepth [this]
depth))
This is very simple stack implementation over plain java array. It does
not compile with the following message:
CompilerException java.lang.VerifyError: (class:
clojure/data/xml/IntStackImpl, method: stackPop signature: ()I) Expecting
to find integer on stack
However, when I replace the body of stackPop with, say, plain zero
literal 0, the method seems to pass the compilation, because then I'm
getting similar error on stackPush method instead.
Placing type hints inside stackPop method does not work (in fact, it is
even an error to place them, say, on value local binding).
What am I doing wrong here? How to make the class compile?
Cheers,
Vladimir.
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Re: gen-interface and deftype with types, compilation problem
Just tested it, swapping body of stackPop with (aget data depth) has the
same effect as swapping it with zero, i.e. it fixes the error,
unfortunately, not in the correct way.
вторник, 18 декабря 2012 г., 22:46:53 UTC+4 пользователь Vladimir Matveev
написал:
Well, it is news for me since it is not documented anywhere. Why is this
so? BTW, typehinting value in '(let [value (aget data depth)]' binding
gives an error Can't type hint a local with a primitive initializer so I
think since this value considered primitive then I actually can hint the
fields to be primitive arrays.
Nonetheless, it does not look like that problem is in the field array:
wrapping aget form with (int) does not help.
вторник, 18 декабря 2012 г., 17:46:14 UTC+4 пользователь David Nolen
написал:
I don't think you can type hint a field as a primitive array.
On Tuesday, December 18, 2012, Vladimir Matveev wrote:
Hello,
Consider the following code
(gen-interface
:name IntStack
:methods [[stackPeek [] int]
[stackPush [int] void]
[stackPop [] int]
[stackDepth [] int]])
(deftype IntStackImpl
[^{:tag ints :unsynchronized-mutable true} data
^{:tag int :unsynchronized-mutable true} depth]
IntStack
(stackPeek [this]
(aget data depth))
(stackPush [this value]
(when (= (inc depth) (alength data))
(let [data-length (alength data)
new-data (int-array (* data-length 2))]
(System/arraycopy data 0 new-data 0 data-length)
(set! data new-data)))
(set! depth (inc depth))
(aset data depth value))
(stackPop [this]
(if ( depth 0)
(let [value (aget data depth)]
(set! depth (dec depth))
value)
(throw (IllegalStateException. Stack is already empty!
(stackDepth [this]
depth))
This is very simple stack implementation over plain java array. It does
not compile with the following message:
CompilerException java.lang.VerifyError: (class:
clojure/data/xml/IntStackImpl, method: stackPop signature: ()I) Expecting
to find integer on stack
However, when I replace the body of stackPop with, say, plain zero
literal 0, the method seems to pass the compilation, because then I'm
getting similar error on stackPush method instead.
Placing type hints inside stackPop method does not work (in fact, it is
even an error to place them, say, on value local binding).
What am I doing wrong here? How to make the class compile?
Cheers,
Vladimir.
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Re: gen-interface and deftype with types, compilation problem
On 18/12/12 18:46, Vladimir Matveev wrote: Well, it is news for me since it is not documented anywhere. Why is this so? it is at least mentioned here in an example...look at line 6 http://clojuredocs.org/clojure_core/clojure.core/definterface Jim -- 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
Re: gen-interface and deftype with types, compilation problem
Oops, looking over gvec.clj it looks like I'm wrong about type-hinting
fields. However you may need to type-hint the primitive array with a string
instead of the symbol shorthand allowed by Clojure. Try the following:
^{:tag [I :unsynchronized-mutable true}
David
On Tue, Dec 18, 2012 at 1:46 PM, Vladimir Matveev dpx.infin...@gmail.comwrote:
Well, it is news for me since it is not documented anywhere. Why is this
so? BTW, typehinting value in '(let [value (aget data depth)]' binding
gives an error Can't type hint a local with a primitive initializer so I
think since this value considered primitive then I actually can hint the
fields to be primitive arrays.
Nonetheless, it does not look like that problem is in the field array:
wrapping aget form with (int) does not help.
вторник, 18 декабря 2012 г., 17:46:14 UTC+4 пользователь David Nolen
написал:
I don't think you can type hint a field as a primitive array.
On Tuesday, December 18, 2012, Vladimir Matveev wrote:
Hello,
Consider the following code
(gen-interface
:name IntStack
:methods [[stackPeek [] int]
[stackPush [int] void]
[stackPop [] int]
[stackDepth [] int]])
(deftype IntStackImpl
[^{:tag ints :unsynchronized-mutable true} data
^{:tag int :unsynchronized-mutable true} depth]
IntStack
(stackPeek [this]
(aget data depth))
(stackPush [this value]
(when (= (inc depth) (alength data))
(let [data-length (alength data)
new-data (int-array (* data-length 2))]
(System/arraycopy data 0 new-data 0 data-length)
(set! data new-data)))
(set! depth (inc depth))
(aset data depth value))
(stackPop [this]
(if ( depth 0)
(let [value (aget data depth)]
(set! depth (dec depth))
value)
(throw (IllegalStateException. Stack is already empty!
(stackDepth [this]
depth))
This is very simple stack implementation over plain java array. It does
not compile with the following message:
CompilerException java.lang.VerifyError: (class:
clojure/data/xml/IntStackImpl, method: stackPop signature: ()I) Expecting
to find integer on stack
However, when I replace the body of stackPop with, say, plain zero
literal 0, the method seems to pass the compilation, because then I'm
getting similar error on stackPush method instead.
Placing type hints inside stackPop method does not work (in fact, it is
even an error to place them, say, on value local binding).
What am I doing wrong here? How to make the class compile?
Cheers,
Vladimir.
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Re: gen-interface and deftype with types, compilation problem
It is definterface example, I have arrays only in deftype. вторник, 18 декабря 2012 г., 23:16:09 UTC+4 пользователь Jim foo.bar написал: On 18/12/12 18:46, Vladimir Matveev wrote: Well, it is news for me since it is not documented anywhere. Why is this so? it is at least mentioned here in an example...look at line 6 http://clojuredocs.org/clojure_core/clojure.core/definterface Jim -- 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
Re: gen-interface and deftype with types, compilation problem
Thanks, but it seems that I have found the source of problem, though I do
not know why compiler message is so uninformative and misleading.
The following code does not work (fails with CompilerException
java.lang.VerifyError: (class: test/Test2Impl, method: fail signature: ()V)
Expecting to find integer on stack):
(definterface Test2
(^void fail []))
(deftype Test2Impl
[^{:unsynchronized-mutable true :tag int} x]
Test2
(fail [this]
(set! x (dec x
The following code _does_ work:
(definterface Test2
(^void fail []))
(deftype Test2Impl
[^{:unsynchronized-mutable true :tag int} x]
Test2
(fail [this]
(set! x (int (dec x)
Note that I have wrapped (dec x) into (int). This compiles and works
flawlessy.
In fact it is fine that there is an error here because (dec) is defined
only on objects and longs, so supplying int to it does not work as
intended. Even my first example in this message will work if you replace
:tag int with :tag long.
However, error message is absolutely misleading and seems to be a
consequence of an error in the compiler...
вторник, 18 декабря 2012 г., 23:18:28 UTC+4 пользователь David Nolen
написал:
Oops, looking over gvec.clj it looks like I'm wrong about type-hinting
fields. However you may need to type-hint the primitive array with a string
instead of the symbol shorthand allowed by Clojure. Try the following:
^{:tag [I :unsynchronized-mutable true}
David
On Tue, Dec 18, 2012 at 1:46 PM, Vladimir Matveev
dpx.in...@gmail.comjavascript:
wrote:
Well, it is news for me since it is not documented anywhere. Why is this
so? BTW, typehinting value in '(let [value (aget data depth)]' binding
gives an error Can't type hint a local with a primitive initializer so I
think since this value considered primitive then I actually can hint the
fields to be primitive arrays.
Nonetheless, it does not look like that problem is in the field array:
wrapping aget form with (int) does not help.
вторник, 18 декабря 2012 г., 17:46:14 UTC+4 пользователь David Nolen
написал:
I don't think you can type hint a field as a primitive array.
On Tuesday, December 18, 2012, Vladimir Matveev wrote:
Hello,
Consider the following code
(gen-interface
:name IntStack
:methods [[stackPeek [] int]
[stackPush [int] void]
[stackPop [] int]
[stackDepth [] int]])
(deftype IntStackImpl
[^{:tag ints :unsynchronized-mutable true} data
^{:tag int :unsynchronized-mutable true} depth]
IntStack
(stackPeek [this]
(aget data depth))
(stackPush [this value]
(when (= (inc depth) (alength data))
(let [data-length (alength data)
new-data (int-array (* data-length 2))]
(System/arraycopy data 0 new-data 0 data-length)
(set! data new-data)))
(set! depth (inc depth))
(aset data depth value))
(stackPop [this]
(if ( depth 0)
(let [value (aget data depth)]
(set! depth (dec depth))
value)
(throw (IllegalStateException. Stack is already empty!
(stackDepth [this]
depth))
This is very simple stack implementation over plain java array. It does
not compile with the following message:
CompilerException java.lang.VerifyError: (class:
clojure/data/xml/IntStackImpl, method: stackPop signature: ()I) Expecting
to find integer on stack
However, when I replace the body of stackPop with, say, plain zero
literal 0, the method seems to pass the compilation, because then I'm
getting similar error on stackPush method instead.
Placing type hints inside stackPop method does not work (in fact, it is
even an error to place them, say, on value local binding).
What am I doing wrong here? How to make the class compile?
Cheers,
Vladimir.
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Re: gen-interface and deftype with types, compilation problem
Ah right, sorry to mislead.
On Tue, Dec 18, 2012 at 2:26 PM, Vladimir Matveev dpx.infin...@gmail.comwrote:
Thanks, but it seems that I have found the source of problem, though I do
not know why compiler message is so uninformative and misleading.
The following code does not work (fails with CompilerException
java.lang.VerifyError: (class: test/Test2Impl, method: fail signature: ()V)
Expecting to find integer on stack):
(definterface Test2
(^void fail []))
(deftype Test2Impl
[^{:unsynchronized-mutable true :tag int} x]
Test2
(fail [this]
(set! x (dec x
The following code _does_ work:
(definterface Test2
(^void fail []))
(deftype Test2Impl
[^{:unsynchronized-mutable true :tag int} x]
Test2
(fail [this]
(set! x (int (dec x)
Note that I have wrapped (dec x) into (int). This compiles and works
flawlessy.
In fact it is fine that there is an error here because (dec) is defined
only on objects and longs, so supplying int to it does not work as
intended. Even my first example in this message will work if you replace
:tag int with :tag long.
However, error message is absolutely misleading and seems to be a
consequence of an error in the compiler...
вторник, 18 декабря 2012 г., 23:18:28 UTC+4 пользователь David Nolen
написал:
Oops, looking over gvec.clj it looks like I'm wrong about type-hinting
fields. However you may need to type-hint the primitive array with a string
instead of the symbol shorthand allowed by Clojure. Try the following:
^{:tag [I :unsynchronized-mutable true}
David
On Tue, Dec 18, 2012 at 1:46 PM, Vladimir Matveev dpx.in...@gmail.comwrote:
Well, it is news for me since it is not documented anywhere. Why is this
so? BTW, typehinting value in '(let [value (aget data depth)]' binding
gives an error Can't type hint a local with a primitive initializer so I
think since this value considered primitive then I actually can hint the
fields to be primitive arrays.
Nonetheless, it does not look like that problem is in the field array:
wrapping aget form with (int) does not help.
вторник, 18 декабря 2012 г., 17:46:14 UTC+4 пользователь David Nolen
написал:
I don't think you can type hint a field as a primitive array.
On Tuesday, December 18, 2012, Vladimir Matveev wrote:
Hello,
Consider the following code
(gen-interface
:name IntStack
:methods [[stackPeek [] int]
[stackPush [int] void]
[stackPop [] int]
[stackDepth [] int]])
(deftype IntStackImpl
[^{:tag ints :unsynchronized-mutable true} data
^{:tag int :unsynchronized-mutable true} depth]
IntStack
(stackPeek [this]
(aget data depth))
(stackPush [this value]
(when (= (inc depth) (alength data))
(let [data-length (alength data)
new-data (int-array (* data-length 2))]
(System/arraycopy data 0 new-data 0 data-length)
(set! data new-data)))
(set! depth (inc depth))
(aset data depth value))
(stackPop [this]
(if ( depth 0)
(let [value (aget data depth)]
(set! depth (dec depth))
value)
(throw (IllegalStateException. Stack is already empty!
(stackDepth [this]
depth))
This is very simple stack implementation over plain java array. It
does not compile with the following message:
CompilerException java.lang.VerifyError: (class:
clojure/data/xml/IntStackImpl, method: stackPop signature: ()I) Expecting
to find integer on stack
However, when I replace the body of stackPop with, say, plain zero
literal 0, the method seems to pass the compilation, because then I'm
getting similar error on stackPush method instead.
Placing type hints inside stackPop method does not work (in fact, it
is even an error to place them, say, on value local binding).
What am I doing wrong here? How to make the class compile?
Cheers,
Vladimir.
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Re: gen-interface and deftype with types, compilation problem
No, you shouldn't worry about that) In fact it was useful to me to learn
that Clojure does not support array type hints everywhere. It may be
possible that I will have to change some of my code because of this.
вторник, 18 декабря 2012 г., 23:30:39 UTC+4 пользователь David Nolen
написал:
Ah right, sorry to mislead.
On Tue, Dec 18, 2012 at 2:26 PM, Vladimir Matveev
dpx.in...@gmail.comjavascript:
wrote:
Thanks, but it seems that I have found the source of problem, though I do
not know why compiler message is so uninformative and misleading.
The following code does not work (fails with CompilerException
java.lang.VerifyError: (class: test/Test2Impl, method: fail signature: ()V)
Expecting to find integer on stack):
(definterface Test2
(^void fail []))
(deftype Test2Impl
[^{:unsynchronized-mutable true :tag int} x]
Test2
(fail [this]
(set! x (dec x
The following code _does_ work:
(definterface Test2
(^void fail []))
(deftype Test2Impl
[^{:unsynchronized-mutable true :tag int} x]
Test2
(fail [this]
(set! x (int (dec x)
Note that I have wrapped (dec x) into (int). This compiles and works
flawlessy.
In fact it is fine that there is an error here because (dec) is defined
only on objects and longs, so supplying int to it does not work as
intended. Even my first example in this message will work if you replace
:tag int with :tag long.
However, error message is absolutely misleading and seems to be a
consequence of an error in the compiler...
вторник, 18 декабря 2012 г., 23:18:28 UTC+4 пользователь David Nolen
написал:
Oops, looking over gvec.clj it looks like I'm wrong about type-hinting
fields. However you may need to type-hint the primitive array with a string
instead of the symbol shorthand allowed by Clojure. Try the following:
^{:tag [I :unsynchronized-mutable true}
David
On Tue, Dec 18, 2012 at 1:46 PM, Vladimir Matveev
dpx.in...@gmail.comwrote:
Well, it is news for me since it is not documented anywhere. Why is
this so? BTW, typehinting value in '(let [value (aget data depth)]'
binding
gives an error Can't type hint a local with a primitive initializer so I
think since this value considered primitive then I actually can hint the
fields to be primitive arrays.
Nonetheless, it does not look like that problem is in the field array:
wrapping aget form with (int) does not help.
вторник, 18 декабря 2012 г., 17:46:14 UTC+4 пользователь David Nolen
написал:
I don't think you can type hint a field as a primitive array.
On Tuesday, December 18, 2012, Vladimir Matveev wrote:
Hello,
Consider the following code
(gen-interface
:name IntStack
:methods [[stackPeek [] int]
[stackPush [int] void]
[stackPop [] int]
[stackDepth [] int]])
(deftype IntStackImpl
[^{:tag ints :unsynchronized-mutable true} data
^{:tag int :unsynchronized-mutable true} depth]
IntStack
(stackPeek [this]
(aget data depth))
(stackPush [this value]
(when (= (inc depth) (alength data))
(let [data-length (alength data)
new-data (int-array (* data-length 2))]
(System/arraycopy data 0 new-data 0 data-length)
(set! data new-data)))
(set! depth (inc depth))
(aset data depth value))
(stackPop [this]
(if ( depth 0)
(let [value (aget data depth)]
(set! depth (dec depth))
value)
(throw (IllegalStateException. Stack is already empty!
(stackDepth [this]
depth))
This is very simple stack implementation over plain java array. It
does not compile with the following message:
CompilerException java.lang.VerifyError: (class:
clojure/data/xml/IntStackImpl, method: stackPop signature: ()I)
Expecting
to find integer on stack
However, when I replace the body of stackPop with, say, plain zero
literal 0, the method seems to pass the compilation, because then I'm
getting similar error on stackPush method instead.
Placing type hints inside stackPop method does not work (in fact, it
is even an error to place them, say, on value local binding).
What am I doing wrong here? How to make the class compile?
Cheers,
Vladimir.
--
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[ANN] lein-stencil 0.1.0
*It is not in clojars yet as I wanted people to have the opportunity to give feedback before making it live* * * *https://github.com/m0smith/lein-stencil * * * A plugin that can be used to copy files from multiple source directories to a target directory while maintaining the sub-directories Also, each file will be transformed using stencil https://github.com/davidsantiago/stencil. The map that is passed to stencil contains a combination of: - The project map - The system properties (with .prop added to the name ) - Additional values (currently only :timestamp) - Values set in the project.clj using :stencil :extra-values -- 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
Re: ClojureCLR errors on Mono Linux
Shantanu, I created an Ubuntu 12.10 VM running in VirtualBox on my Win7 PC. I installed Mono 2.10.8. I downloaded the zip for ClojureCLR 1.4.0 Debug-4.0. Extracted. mono Clojure.Main.exe Runs with no problem. mono Clojure.Compile.exe test.junk Runs with no problem. From the errors you report, I can only guess that some pre-1.4 DLLs are being found somehow and loaded. For example, the field clojure.lang.RT.OutVar did not exist in ClojureCLR 1.3. I do not know how else to help. -David On Saturday, December 15, 2012 10:17:59 PM UTC-6, Shantanu Kumar wrote: This is when using ClojureCLR 1.4.0 Debug-4.0 version. Shantanu On Sunday, 16 December 2012 09:45:21 UTC+5:30, Shantanu Kumar wrote: Hi, I noticed the following ClojureCLR errors using Mono 2.10 on Ubuntu 12.04 (they do not happen on Windows using either .NET or Mono): 1. when running Clojure.Compile.exe: Exception: System.MissingFieldException: Field 'clojure.lang.RT.OutVar' not found. 2. when using Clojure.Main.exe: Exception: System.TypeLoadException: Could not load type 'Clojure.CljMain' from assembly 'Clojure.Main, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. It would be great if anybody can let me know what's going on. Shantanu -- 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
Re: clojure-contrib migrations
Hi Andy, Thanks for the response. I've signed the CA and mailed it off. I'm also hoping to keep this under the clojure.* namespace. Would the process moving forward be to create a separate repo containing just the components I'll be working on moving forward to break it out of the large clojure.contrib package? - Chris -- Christopher Meiklejohn On Tuesday, December 18, 2012 at 1:56 AM, Andy Fingerhut wrote: If you want it to remain a Clojure contrib library with a clojure.* namespace, you'll need to sign a Clojure CA to be able to make contributions to it. http://clojure.org/contributing If you want to make it a project on Github or somewhere else, you would probably need to keep the existing license, which I'm guessing is the Eclipse public license. Andy On Dec 17, 2012, at 3:44 PM, Christopher Meiklejohn wrote: Hi there, I'm inquiring regarding the clojure-contrib migration process. I'd like to offer to step up and maintain clojure-contrib.graph, mainly starting with converting the defstructs over to defrecords so I can start playing around in ClojureScript with this library. What's the process moving forward? - Chris -- 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 (mailto: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 (mailto: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
Re: clojure-contrib migrations
I believe Sean Corfield has helped several of the older contrib libraries get migrated to the newer ones, and either knows the process better, or knows who to ask. Sean? Andy On Dec 18, 2012, at 1:29 PM, Christopher Meiklejohn wrote: Hi Andy, Thanks for the response. I've signed the CA and mailed it off. I'm also hoping to keep this under the clojure.* namespace. Would the process moving forward be to create a separate repo containing just the components I'll be working on moving forward to break it out of the large clojure.contrib package? - Chris -- Christopher Meiklejohn On Tuesday, December 18, 2012 at 1:56 AM, Andy Fingerhut wrote: If you want it to remain a Clojure contrib library with a clojure.* namespace, you'll need to sign a Clojure CA to be able to make contributions to it. http://clojure.org/contributing If you want to make it a project on Github or somewhere else, you would probably need to keep the existing license, which I'm guessing is the Eclipse public license. Andy On Dec 17, 2012, at 3:44 PM, Christopher Meiklejohn wrote: Hi there, I'm inquiring regarding the clojure-contrib migration process. I'd like to offer to step up and maintain clojure-contrib.graph, mainly starting with converting the defstructs over to defrecords so I can start playing around in ClojureScript with this library. What's the process moving forward? - Chris -- 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
[ANN] CJD 0.1.0, a documentation technology for Clojure programs
I'd like to announce the availability of CJD 0.1.0. CJD is a technology for documenting Clojure programs which I devised to satisfy my idiosyncratic documentation-related propensities. It's mostly complete, so I thought I'd share it with the community just in case there are any fellow travelers with similar inclinations. CJD makes use of structured comments embedded in Clojure source code in a fashion inspired by Javadoc, to which it bears a superficial similarity. Like Javadoc, CJD comments support a simple form of markup that not only can add formatting detail but also provides a modicum of metadata that describes what's being documented. This allows CJD's processing facility to extract the documentation content from collections of Clojure namespaces and convert it into trees of consistently-formatted HTML documents. Thus, CJD comments represent a much more expressive alternative or supplement to docstrings. Ground zero for CJD is its home on GitHub https://github.com/greenh/CJD, which includes a FAQ http://greenh.github.com/CJD/doc/FAQ.html that provides a reasonably concise overview and rationale for CJD, and a user's guide http://greenh.github.com/CJD/doc/User.html that represents a first-pass attempt at describing the gory details. Needless to say, CJD uses CJD for its own program documentation. You can see the output of a representative namespace in your choice of light-background http://greenh.github.com/CJD/doc/light/cjd.exome.htmland dark-background http://greenh.github.com/CJD/doc/dark/cjd.exome.html (my favorite!) renderings, and the source from which it was generated herehttps://github.com/greenh/CJD/blob/master/src/clojure/cjd/exome.clj . Here's a few additional points about CJD. You'll get all these and more from the links above, but just in case your interest hasn't already been piqued… - Documentation comments generally consist largely of ordinary text, so they're easily readable in source form. Required additions for markup and escape sequences tend to be fairly minimal. - Markup is structured in terms of syntactically valid Clojure forms, allowing Clojure-aware editors to be used to good advantage. - A recursively-defined documentation syntax allows Clojure's recursively-defined data structures and functions to be documented to whatever depth is needful. - Structure-aware support for documenting core Clojure artifacts (vars, functions, macros, protocols, records, etc.) is available right out of the box. CJD also provides facilities for extensions that allow user-defined artifacts to be compatibly documented. - Recognizing the value of richly-linked documentation, CJD tries to make it easy to link to other artifacts' documentation, both within and external to a project. - What does and doesn't get documented, and to what extent, is entirely at the developer's discretion. No pressure, no complaints—CJD happily accepts whatever scraps of documentation you throw its way. And, it's available from Clojars https://clojars.org/cjd, it includes a plugin that works with both the 1.x and 2.x versions Leiningen, it runs from the REPL, and there's even support for all you command-line enthusiasts out there. Enjoy! --- Howard -- 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
Re: [ANN] CJD 0.1.0, a documentation technology for Clojure programs
Awesome! 2012/12/18 greenh hhgr...@ieee.org I'd like to announce the availability of CJD 0.1.0. CJD is a technology for documenting Clojure programs which I devised to satisfy my idiosyncratic documentation-related propensities. It's mostly complete, so I thought I'd share it with the community just in case there are any fellow travelers with similar inclinations. CJD makes use of structured comments embedded in Clojure source code in a fashion inspired by Javadoc, to which it bears a superficial similarity. Like Javadoc, CJD comments support a simple form of markup that not only can add formatting detail but also provides a modicum of metadata that describes what's being documented. This allows CJD's processing facility to extract the documentation content from collections of Clojure namespaces and convert it into trees of consistently-formatted HTML documents. Thus, CJD comments represent a much more expressive alternative or supplement to docstrings. Ground zero for CJD is its home on GitHub https://github.com/greenh/CJD, which includes a FAQ http://greenh.github.com/CJD/doc/FAQ.html that provides a reasonably concise overview and rationale for CJD, and a user's guide http://greenh.github.com/CJD/doc/User.html that represents a first-pass attempt at describing the gory details. Needless to say, CJD uses CJD for its own program documentation. You can see the output of a representative namespace in your choice of light-background http://greenh.github.com/CJD/doc/light/cjd.exome.htmland dark-background http://greenh.github.com/CJD/doc/dark/cjd.exome.html(my favorite!) renderings, and the source from which it was generated here https://github.com/greenh/CJD/blob/master/src/clojure/cjd/exome.clj . Here's a few additional points about CJD. You'll get all these and more from the links above, but just in case your interest hasn't already been piqued… - Documentation comments generally consist largely of ordinary text, so they're easily readable in source form. Required additions for markup and escape sequences tend to be fairly minimal. - Markup is structured in terms of syntactically valid Clojure forms, allowing Clojure-aware editors to be used to good advantage. - A recursively-defined documentation syntax allows Clojure's recursively-defined data structures and functions to be documented to whatever depth is needful. - Structure-aware support for documenting core Clojure artifacts (vars, functions, macros, protocols, records, etc.) is available right out of the box. CJD also provides facilities for extensions that allow user-defined artifacts to be compatibly documented. - Recognizing the value of richly-linked documentation, CJD tries to make it easy to link to other artifacts' documentation, both within and external to a project. - What does and doesn't get documented, and to what extent, is entirely at the developer's discretion. No pressure, no complaints—CJD happily accepts whatever scraps of documentation you throw its way. And, it's available from Clojars https://clojars.org/cjd, it includes a plugin that works with both the 1.x and 2.x versions Leiningen, it runs from the REPL, and there's even support for all you command-line enthusiasts out there. Enjoy! --- Howard -- 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
Re: [ANN] CJD 0.1.0, a documentation technology for Clojure programs
It sure looks very nice! … but doesn't your use of #_ preclude us from getting that doc-info in the running system? In other words, how would you enhance the doc facility in the repl to pickup your doc-meta-data in real-time? -FrankS. On Dec 18, 2012, at 11:10 PM, greenh hhgr...@ieee.org wrote: I'd like to announce the availability of CJD 0.1.0. CJD is a technology for documenting Clojure programs which I devised to satisfy my idiosyncratic documentation-related propensities. It's mostly complete, so I thought I'd share it with the community just in case there are any fellow travelers with similar inclinations. CJD makes use of structured comments embedded in Clojure source code in a fashion inspired by Javadoc, to which it bears a superficial similarity. Like Javadoc, CJD comments support a simple form of markup that not only can add formatting detail but also provides a modicum of metadata that describes what's being documented. This allows CJD's processing facility to extract the documentation content from collections of Clojure namespaces and convert it into trees of consistently-formatted HTML documents. Thus, CJD comments represent a much more expressive alternative or supplement to docstrings. Ground zero for CJD is its home on GitHub, which includes a FAQ that provides a reasonably concise overview and rationale for CJD, and a user's guide that represents a first-pass attempt at describing the gory details. Needless to say, CJD uses CJD for its own program documentation. You can see the output of a representative namespace in your choice of light-background and dark-background (my favorite!) renderings, and the source from which it was generated here. Here's a few additional points about CJD. You'll get all these and more from the links above, but just in case your interest hasn't already been piqued… • Documentation comments generally consist largely of ordinary text, so they're easily readable in source form. Required additions for markup and escape sequences tend to be fairly minimal. • Markup is structured in terms of syntactically valid Clojure forms, allowing Clojure-aware editors to be used to good advantage. • A recursively-defined documentation syntax allows Clojure's recursively-defined data structures and functions to be documented to whatever depth is needful. • Structure-aware support for documenting core Clojure artifacts (vars, functions, macros, protocols, records, etc.) is available right out of the box. CJD also provides facilities for extensions that allow user-defined artifacts to be compatibly documented. • Recognizing the value of richly-linked documentation, CJD tries to make it easy to link to other artifacts' documentation, both within and external to a project. • What does and doesn't get documented, and to what extent, is entirely at the developer's discretion. No pressure, no complaints—CJD happily accepts whatever scraps of documentation you throw its way. And, it's available from Clojars, it includes a plugin that works with both the 1.x and 2.x versions Leiningen, it runs from the REPL, and there's even support for all you command-line enthusiasts out there. Enjoy! --- Howard -- 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
Re: Little namespace question
From yesterday: (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form as string ns - Target namespace as string [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval '~(read-string code))] (in-ns '~(ns-name *ns*)) ret#))) user= (def generator (X 400 400)) #'user/generator user= (def image (eval-in generator clevolution.version.version0-1-1)) CompilerException java.lang.ClassCastException: clojure.lang.Symbol cannot be cast to java.lang.String, compiling:(NO_SOURCE_PATH:1) user= (def image (eval-in (X 400 400) clevolution.version.version0-1-1)) #'user/image So it's OK to pass the explicit string but not the symbol. What am I not getting here? -A On Tue, Dec 18, 2012 at 12:48 AM, Alan Shaw noden...@gmail.com wrote: Now I do, and the macro worked! I believe I have a problem using the macro from a function, but leaving that for tomorrow. Thanks BG! -A On Tue, Dec 18, 2012 at 12:19 AM, Baishampayan Ghose b.gh...@gmail.comwrote: Do you have target ns clevolution.version.version0-1-1 required? -BG On Tue, Dec 18, 2012 at 1:38 PM, Alan Shaw noden...@gmail.com wrote: BG, The macro doesn't seem to do the trick. The function X is interned in the target namespace, but: user= (def image (eval-in (X 400 400) clevolution.version.version0-1-1)) CompilerException java.lang.RuntimeException: Unable to resolve symbol: X in this context, compiling:(NO_SOURCE_PATH:1) On Mon, Dec 17, 2012 at 11:53 PM, Alan Shaw noden...@gmail.com wrote: Oh yes, the something.something is fixed so I can just prepend it, thanks. (Hadn't noticed your macro takes the ns as a string!) -A On Mon, Dec 17, 2012 at 11:47 PM, Baishampayan Ghose b.gh...@gmail.com wrote: Alan, What you're asking for is to derive the ns clojure.core given only core. Not sure if that's possible. The namespace constitutes the whole dotted structure and not just the last component, I am afraid. If the actual ns is something.something.version-0-1-1, then you need the string something.something.version-0-1-1 and not just version-0-1-1 [unless of course you have some other way of deriving it from info that's embedded in _your_ code or structure thereof]. -BG On Tue, Dec 18, 2012 at 1:10 PM, Alan Shaw noden...@gmail.com wrote: Thanks BG, I'm trying that. But I don't think it addresses how to get from the string version-0-1-1 to the namespace something.something.version-0-1-1. How can I do that? -A On Mon, Dec 17, 2012 at 11:26 PM, Baishampayan Ghose b.gh...@gmail.com wrote: Alan, Something like this might work for you - (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form as string ns - Target namespace as string [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval '~(read-string code))] (in-ns '~(ns-name *ns*)) ret#))) Warning - I haven't really tested this code. -BG On Tue, Dec 18, 2012 at 12:37 PM, Alan Shaw noden...@gmail.com wrote: Thanks, Las! Ok say I have a file in which there is string such as (- (atan (bw-noise 902 2 0.7604615575402431 400 400)) (read-image-from-file \images/Dawn_on_Callipygea.png\)) and another version-0-0-1 and I have a namespace version-0-0-1 into which functions named atan etc. are all :referred. I want to evaluate the expression in that particular context, and not remain there when I'm done. -A On Mon, Dec 17, 2012 at 11:00 PM, László Török ltoro...@gmail.com wrote: ah, sorry, it's a bit early for me (in-ns (ns-name user-ns)) if you could post a simple example for the second part of your question I maybe able to help. Las Alan Shaw 2012. december 18., kedd napon a következőt írta: Ah no, that puts me in a new user-ns namespace! Not what I wanted! On Mon, Dec 17, 2012 at 10:51 PM, László Török ltoro...@gmail.com wrote: Try (in-ns 'user-ns) Las On Dec 18, 2012 7:50 AM, Alan Shaw noden...@gmail.com wrote: user= *ns* #Namespace user user= (def user-ns *ns*) #'user/user-ns user= user-ns #Namespace user user= (in-ns user-ns) ClassCastException clojure.lang.Namespace cannot be cast to clojure.lang.Symbol clojure.lang.RT$1.invoke (RT.java:226) It appears I'm not understanding how namespaces are represented. Also, is it just wrong of me to want to remember a namespace I was working in and try to go back to it later? The slightly larger context is: I'm saving an s-expression with unqualified names in it into a file as a string. Also
Re: Who's using Clojure?
@Christopher Redinger: Thanks, that's a nice page. Bookmarked and will visit from time to time to assess the state of Clojure adoption. -- 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
Re: Little namespace question
The macro sees it arguments as *symbols* and does not resolve to the corresponding *var* until evaluation, so the value for the local *code* var in the macro is actually the *symbol** generator.* The *eval-in* macro uses the *read-string* function to evaluate the code you provide, this function expects a string but it's getting the* **symbol**generator * instead, since that's what the macro got as a first argument. Here's a modified version of the *eval-in* macro, that delays the evaluation of the call to *read-string*: (require '[clojure.pprint :as p]) (defmacro eval-in [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval *(read-string ~code)*)] ; This line was changed (in-ns '~(ns-name *ns*)) ret#))) (p/pprint (macroexpand '(eval-in generator another-ns))) Here's the output: (do (clojure.core/in-ns 'another-ns) (clojure.core/let [ret__1879__auto__ (clojure.core/eval *(clojure.core/read-string generator)*)] ; The unquoting of code resulted in the symbol generator (clojure.core/in-ns 'test-eval) ret__1879__auto__)) If you want to use a var as an argument for the code, you could resolve the var before changing namespaces, delaying the read-string until the forms evaluation: (ns another-ns) (defn X [w h] [w h]) ;--- (ns this-ns (:require [clojure.pprint :as p])) (defmacro eval-in [code ns] `(let [code# ~code] (in-ns '~(symbol ns)) (let [ret# (eval (read-string code#))] (in-ns '~(ns-name *ns*)) ret#))) (def generator (X 300 300)) (p/pprint (eval-in generator another-ns)) Hope it helps, Juan On Wednesday, December 19, 2012 1:13:00 AM UTC-3, nodename wrote: From yesterday: (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form as string ns - Target namespace as string [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval '~(read-string code))] (in-ns '~(ns-name *ns*)) ret#))) user= (def generator (X 400 400)) #'user/generator user= (def image (eval-in generator clevolution.version.version0-1-1)) CompilerException java.lang.ClassCastException: clojure.lang.Symbol cannot be cast to java.lang.String, compiling:(NO_SOURCE_PATH:1) user= (def image (eval-in (X 400 400) clevolution.version.version0-1-1)) #'user/image So it's OK to pass the explicit string but not the symbol. What am I not getting here? -A On Tue, Dec 18, 2012 at 12:48 AM, Alan Shaw node...@gmail.comjavascript: wrote: Now I do, and the macro worked! I believe I have a problem using the macro from a function, but leaving that for tomorrow. Thanks BG! -A On Tue, Dec 18, 2012 at 12:19 AM, Baishampayan Ghose b.g...@gmail.comjavascript: wrote: Do you have target ns clevolution.version.version0-1-1 required? -BG On Tue, Dec 18, 2012 at 1:38 PM, Alan Shaw node...@gmail.comjavascript: wrote: BG, The macro doesn't seem to do the trick. The function X is interned in the target namespace, but: user= (def image (eval-in (X 400 400) clevolution.version.version0-1-1)) CompilerException java.lang.RuntimeException: Unable to resolve symbol: X in this context, compiling:(NO_SOURCE_PATH:1) On Mon, Dec 17, 2012 at 11:53 PM, Alan Shaw node...@gmail.comjavascript: wrote: Oh yes, the something.something is fixed so I can just prepend it, thanks. (Hadn't noticed your macro takes the ns as a string!) -A On Mon, Dec 17, 2012 at 11:47 PM, Baishampayan Ghose b.g...@gmail.com javascript: wrote: Alan, What you're asking for is to derive the ns clojure.core given only core. Not sure if that's possible. The namespace constitutes the whole dotted structure and not just the last component, I am afraid. If the actual ns is something.something.version-0-1-1, then you need the string something.something.version-0-1-1 and not just version-0-1-1 [unless of course you have some other way of deriving it from info that's embedded in _your_ code or structure thereof]. -BG On Tue, Dec 18, 2012 at 1:10 PM, Alan Shaw node...@gmail.comjavascript: wrote: Thanks BG, I'm trying that. But I don't think it addresses how to get from the string version-0-1-1 to the namespace something.something.version-0-1-1. How can I do that? -A On Mon, Dec 17, 2012 at 11:26 PM, Baishampayan Ghose b.g...@gmail.com javascript: wrote: Alan, Something like this might work for you - (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form as string ns - Target namespace as string [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval '~(read-string code))] (in-ns '~(ns-name *ns*)) ret#))) Warning - I haven't really tested this code.
Re: Little namespace question
Thanks very much Juan, that's some good study material for me. -A On Dec 18, 2012 10:45 PM, juan.facorro juan.faco...@gmail.com wrote: The macro sees it arguments as *symbols* and does not resolve to the corresponding *var* until evaluation, so the value for the local *code* var in the macro is actually the *symbol** generator.* The *eval-in* macro uses the *read-string* function to evaluate the code you provide, this function expects a string but it's getting the* **symbol ** generator* instead, since that's what the macro got as a first argument. Here's a modified version of the *eval-in* macro, that delays the evaluation of the call to *read-string*: (require '[clojure.pprint :as p]) (defmacro eval-in [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval *(read-string ~code)*)] ; This line was changed (in-ns '~(ns-name *ns*)) ret#))) (p/pprint (macroexpand '(eval-in generator another-ns))) Here's the output: (do (clojure.core/in-ns 'another-ns) (clojure.core/let [ret__1879__auto__ (clojure.core/eval *(clojure.core/read-string generator)*)] ; The unquoting of code resulted in the symbol generator (clojure.core/in-ns 'test-eval) ret__1879__auto__)) If you want to use a var as an argument for the code, you could resolve the var before changing namespaces, delaying the read-string until the forms evaluation: (ns another-ns) (defn X [w h] [w h]) ;--- (ns this-ns (:require [clojure.pprint :as p])) (defmacro eval-in [code ns] `(let [code# ~code] (in-ns '~(symbol ns)) (let [ret# (eval (read-string code#))] (in-ns '~(ns-name *ns*)) ret#))) (def generator (X 300 300)) (p/pprint (eval-in generator another-ns)) Hope it helps, Juan On Wednesday, December 19, 2012 1:13:00 AM UTC-3, nodename wrote: From yesterday: (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form as string ns - Target namespace as string [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval '~(read-string code))] (in-ns '~(ns-name *ns*)) ret#))) user= (def generator (X 400 400)) #'user/generator user= (def image (eval-in generator clevolution.version.version0-** 1-1)) CompilerException java.lang.ClassCastException: clojure.lang.Symbol cannot be cast to java.lang.String, compiling:(NO_SOURCE_PATH:1) user= (def image (eval-in (X 400 400) clevolution.version.version0-** 1-1)) #'user/image So it's OK to pass the explicit string but not the symbol. What am I not getting here? -A On Tue, Dec 18, 2012 at 12:48 AM, Alan Shaw node...@gmail.com wrote: Now I do, and the macro worked! I believe I have a problem using the macro from a function, but leaving that for tomorrow. Thanks BG! -A On Tue, Dec 18, 2012 at 12:19 AM, Baishampayan Ghose b.g...@gmail.comwrote: Do you have target ns clevolution.version.version0-**1-1 required? -BG On Tue, Dec 18, 2012 at 1:38 PM, Alan Shaw node...@gmail.com wrote: BG, The macro doesn't seem to do the trick. The function X is interned in the target namespace, but: user= (def image (eval-in (X 400 400) clevolution.version.version0-**1-1)) CompilerException java.lang.RuntimeException: Unable to resolve symbol: X in this context, compiling:(NO_SOURCE_PATH:1) On Mon, Dec 17, 2012 at 11:53 PM, Alan Shaw node...@gmail.com wrote: Oh yes, the something.something is fixed so I can just prepend it, thanks. (Hadn't noticed your macro takes the ns as a string!) -A On Mon, Dec 17, 2012 at 11:47 PM, Baishampayan Ghose b.g...@gmail.com wrote: Alan, What you're asking for is to derive the ns clojure.core given only core. Not sure if that's possible. The namespace constitutes the whole dotted structure and not just the last component, I am afraid. If the actual ns is something.something.version-0-**1-1, then you need the string something.something.version-**0-1-1 and not just version-0-1-1 [unless of course you have some other way of deriving it from info that's embedded in _your_ code or structure thereof]. -BG On Tue, Dec 18, 2012 at 1:10 PM, Alan Shaw node...@gmail.com wrote: Thanks BG, I'm trying that. But I don't think it addresses how to get from the string version-0-1-1 to the namespace something.something.version-0-**1-1. How can I do that? -A On Mon, Dec 17, 2012 at 11:26 PM, Baishampayan Ghose b.g...@gmail.com wrote: Alan, Something like this might work for you - (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form as string ns - Target namespace as string [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval '~(read-string code))]
Re: New Clojure user group in Israel
Finally! I'm in :) On Mon, Dec 17, 2012 at 12:58 PM, Daniel Szmulewicz daniel.szmulew...@gmail.com wrote: Hi everybody, Happy to announce that Israel has its first Clojure user group. http://www.meetup.com/Clojure-**Israel/http://www.meetup.com/Clojure-Israel/ Sincerely, Daniel Szmulewicz -- 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 -- Haim -- 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
Re: Little namespace question
As an aside, I'm curious about whether this could have been implemented without a macro. -A On Dec 18, 2012 11:06 PM, Alan Shaw noden...@gmail.com wrote: Thanks very much Juan, that's some good study material for me. -A On Dec 18, 2012 10:45 PM, juan.facorro juan.faco...@gmail.com wrote: The macro sees it arguments as *symbols* and does not resolve to the corresponding *var* until evaluation, so the value for the local *code* var in the macro is actually the *symbol** generator.* The *eval-in* macro uses the *read-string* function to evaluate the code you provide, this function expects a string but it's getting the* ** symbol** generator* instead, since that's what the macro got as a first argument. Here's a modified version of the *eval-in* macro, that delays the evaluation of the call to *read-string*: (require '[clojure.pprint :as p]) (defmacro eval-in [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval *(read-string ~code)*)] ; This line was changed (in-ns '~(ns-name *ns*)) ret#))) (p/pprint (macroexpand '(eval-in generator another-ns))) Here's the output: (do (clojure.core/in-ns 'another-ns) (clojure.core/let [ret__1879__auto__ (clojure.core/eval *(clojure.core/read-string generator)*)] ; The unquoting of code resulted in the symbol generator (clojure.core/in-ns 'test-eval) ret__1879__auto__)) If you want to use a var as an argument for the code, you could resolve the var before changing namespaces, delaying the read-string until the forms evaluation: (ns another-ns) (defn X [w h] [w h]) ;--- (ns this-ns (:require [clojure.pprint :as p])) (defmacro eval-in [code ns] `(let [code# ~code] (in-ns '~(symbol ns)) (let [ret# (eval (read-string code#))] (in-ns '~(ns-name *ns*)) ret#))) (def generator (X 300 300)) (p/pprint (eval-in generator another-ns)) Hope it helps, Juan On Wednesday, December 19, 2012 1:13:00 AM UTC-3, nodename wrote: From yesterday: (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form as string ns - Target namespace as string [code ns] `(do (in-ns '~(symbol ns)) (let [ret# (eval '~(read-string code))] (in-ns '~(ns-name *ns*)) ret#))) user= (def generator (X 400 400)) #'user/generator user= (def image (eval-in generator clevolution.version.version0-** 1-1)) CompilerException java.lang.ClassCastException: clojure.lang.Symbol cannot be cast to java.lang.String, compiling:(NO_SOURCE_PATH:1) user= (def image (eval-in (X 400 400) clevolution.version.version0-* *1-1)) #'user/image So it's OK to pass the explicit string but not the symbol. What am I not getting here? -A On Tue, Dec 18, 2012 at 12:48 AM, Alan Shaw node...@gmail.com wrote: Now I do, and the macro worked! I believe I have a problem using the macro from a function, but leaving that for tomorrow. Thanks BG! -A On Tue, Dec 18, 2012 at 12:19 AM, Baishampayan Ghose b.g...@gmail.comwrote: Do you have target ns clevolution.version.version0-**1-1 required? -BG On Tue, Dec 18, 2012 at 1:38 PM, Alan Shaw node...@gmail.com wrote: BG, The macro doesn't seem to do the trick. The function X is interned in the target namespace, but: user= (def image (eval-in (X 400 400) clevolution.version.version0-**1-1)) CompilerException java.lang.RuntimeException: Unable to resolve symbol: X in this context, compiling:(NO_SOURCE_PATH:1) On Mon, Dec 17, 2012 at 11:53 PM, Alan Shaw node...@gmail.com wrote: Oh yes, the something.something is fixed so I can just prepend it, thanks. (Hadn't noticed your macro takes the ns as a string!) -A On Mon, Dec 17, 2012 at 11:47 PM, Baishampayan Ghose b.g...@gmail.com wrote: Alan, What you're asking for is to derive the ns clojure.core given only core. Not sure if that's possible. The namespace constitutes the whole dotted structure and not just the last component, I am afraid. If the actual ns is something.something.version-0-**1-1, then you need the string something.something.version-**0-1-1 and not just version-0-1-1 [unless of course you have some other way of deriving it from info that's embedded in _your_ code or structure thereof]. -BG On Tue, Dec 18, 2012 at 1:10 PM, Alan Shaw node...@gmail.com wrote: Thanks BG, I'm trying that. But I don't think it addresses how to get from the string version-0-1-1 to the namespace something.something.version-0-**1-1. How can I do that? -A On Mon, Dec 17, 2012 at 11:26 PM, Baishampayan Ghose b.g...@gmail.com wrote: Alan, Something like this might work for you - (defmacro eval-in Eval a Clojure form in a different namespace and switch back to current namespace. Args: code - Clojure form
Re: ClojureCLR errors on Mono Linux
Thanks David, and sorry for the insufficient bug details. I tested this on 64-bit Ubuntu where it works fine; however, the problem shows up on 32-bit Ubuntu. I will post the exact steps in the evening on how to replicate the issue on 32-bit Ubuntu. Shantanu On Wednesday, 19 December 2012 02:00:53 UTC+5:30, dmiller wrote: Shantanu, I created an Ubuntu 12.10 VM running in VirtualBox on my Win7 PC. I installed Mono 2.10.8. I downloaded the zip for ClojureCLR 1.4.0 Debug-4.0. Extracted. mono Clojure.Main.exe Runs with no problem. mono Clojure.Compile.exe test.junk Runs with no problem. From the errors you report, I can only guess that some pre-1.4 DLLs are being found somehow and loaded. For example, the field clojure.lang.RT.OutVar did not exist in ClojureCLR 1.3. I do not know how else to help. -David On Saturday, December 15, 2012 10:17:59 PM UTC-6, Shantanu Kumar wrote: This is when using ClojureCLR 1.4.0 Debug-4.0 version. Shantanu On Sunday, 16 December 2012 09:45:21 UTC+5:30, Shantanu Kumar wrote: Hi, I noticed the following ClojureCLR errors using Mono 2.10 on Ubuntu 12.04 (they do not happen on Windows using either .NET or Mono): 1. when running Clojure.Compile.exe: Exception: System.MissingFieldException: Field 'clojure.lang.RT.OutVar' not found. 2. when using Clojure.Main.exe: Exception: System.TypeLoadException: Could not load type 'Clojure.CljMain' from assembly 'Clojure.Main, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. It would be great if anybody can let me know what's going on. Shantanu -- 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
Need help in geeting cemerick/friend working with openid
Hi,
I am trying to setup my authentication using cemerick/friend. I would like
to authenticate using openid with gmail.
Below is the code that I have -
(ns faiz.handler
(:use compojure.core)
(:require [compojure.handler :as handler]
[compojure.route :as route]
[ring.util.response :as resp]
[me.shenfeng.mustache :as mustache]
[cemerick.friend :as friend]
(cemerick.friend [workflows :as workflows]
[credentials :as creds]
[openid :as openid])))
(mustache/deftemplate index (slurp public/index-async.html))
(def index-data {:title Invoize. :brand Faiz :links [{:url #/students
:text Students} {:url #/thaalis :text Thaalis}]})
(defroutes app-routes
(GET / [] (resp/redirect /landing))
(GET /landing [] (resp/file-response landing.html {:root public}))
(GET /index [] (index index-data))
(route/files / {:root public})
(route/not-found Not Found))
(def mock-app
(- app-routes
(friend/authenticate
{:workflows [(openid/workflow :openid-uri
https://www.google.com/accounts/o8/id; :realm http://invoize.com;)]})))
(def app
(handler/site app-routes))
My expectation is that when I try to access the /index or /landing url,
it should not allow me as I am not authenticated and redirect to the
openid-url,however this does not happen. How do I achieve it ?
Thanks,
Murtaza
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