Yeah, it certainly is not quite up to giving you true dynamic language capabilities yet :-)
Still, it's better than nothing. The combination of being able to hot-update methods and set breakpoints plus all the usual debugging facilities makes the "working with Java from the REPL" experience much more pleasant overall. There's also no real downside to using this (assuming you have plenty of memory available to run your Clojure JVM in debug mode....) On Monday, 16 September 2013 12:09:09 UTC+8, Luc wrote: > > I rarely use debug mode even when we had a mix of Clojure/Java code > a year ago. When it happens it's because some obscure compiler error > made me bang my head on my desk several times :) > > Never tried debug mode with java source code changes to see how far we can > go > with on the fly compilation, to me the words dynamic and Java are mutually > exclusive :) > > If you cannot change method signatures, this usage looks quite limited. > > Luc P. > > > > On c), it is worth noting that if you run the REPL in Eclipse's debug > mode > > then you can change Java source code without restarting the REPL in many > > cases. It will do hot code reloading of Java method bodies just fine. > The > > only thing you can't do is change method signatures, which requires a > full > > JVM restart I think. > > > > On Monday, 16 September 2013 01:13:21 UTC+8, Luc wrote: > > > > > > a) You test your code using the REPL window. In the bottom there's a > user > > > input > > > area were you can run Clojure expression interactively. > > > The REPL panel has a couple of buttons in the top right corner. > > > You can see the last exception, interrupt processing if it loops > > > forever, ... > > > > > > The console is used to look at detailed error messages from the > > > runtime > > > like exceptions. > > > > > > b) When editing a Clojure source file, you can load it in a REPL > directly > > > by using either a shortcut ctrl->alt->s or through the > > > mouse-right-click -> Clojure > > > menu. Look at the shortcuts available. You can reload a name space > > > in a running REPL on the fly, redefine stuff through cursor > selection, > > > change the current name space in the REPL to the one of the source > > > file > > > edited, .... > > > > > > c) The time it takes to get the REPL alive can be significant > depending on > > > your > > > hardware. The idea is to avoid restarting it as much as possible > by > > > reloading name spaces or redefining fns, ... w/o shutting down > your > > > current REPL. Beware that in some cases it's unavoidable like when > > > you alter the project class path or if you are modifying java > source > > > code > > > part of your clojure project. The Java compilation will alter > static > > > files > > > not the loaded code in the JVM supporting the REPL. > > > > > > Can't help you much with the menu that vanished but if you work > > > within a clojure source file and not the other way around, you should > be > > > able > > > to run it with the above indications. > > > > > > Make sure that your project has it's Clojure nature enabled otherwise > none > > > of > > > the Clojure shortcuts will appear in the editor context menu. > > > > > > Luc > > > > > > > > > > > > > > > > > > I'm learning clojure on eclipse (counterclockwise plugin). > > > > > > > > - When I click "run" in eclipse (as I would do with Java) I get > not > > > only > > > > the console opened but this "REPL" window. Why is it necessary > and > > > what > > > > does it do? > > > > - When I click "run" it takes quite a few seconds to launch the > app. > > > Is > > > > there a way to make it faster? > > > > - When I need to edit the code and relaunch (run) the the app I'm > > > > getting this message: "The selection cannot be launched, and > there > > > are no > > > > recent launches". What is that and why wouldn't it let me > relaunch my > > > code? > > > > If I wait a while I can launch it again. > > > > - I was screwing around and I don't know what I did, but now "Run > as" > > > -> > > > > "Clojure Application" option is gone. How do I get it back? > > > > > > > > This is simple bit of code that I'm trying to run: > > > > > > > > (ns ClojureTest.core) > > > > (let [input (read-line)] > > > > (if (= "x" input) > > > > (do > > > > (println "Exit") > > > > (System/exit 0) > > > > ) > > > > (do > > > > (println input) > > > > (recur) > > > > ) > > > > )) > > > > > > > > -- > > > > -- > > > > You received this message because you are subscribed to the Google > > > > Groups "Clojure" group. > > > > To post to this group, send email to > > > > clo...@googlegroups.com<javascript:> > > > > > Note that posts from new members are moderated - please be patient > with > > > your first post. > > > > To unsubscribe from this group, send email to > > > > clojure+u...@googlegroups.com <javascript:> > > > > For more options, visit this group at > > > > http://groups.google.com/group/clojure?hl=en > > > > --- > > > > You received this message because you are subscribed to the Google > > > Groups "Clojure" group. > > > > To unsubscribe from this group and stop receiving emails from it, > send > > > an email to clojure+u...@googlegroups.com <javascript:>. > > > > For more options, visit https://groups.google.com/groups/opt_out. > > > > > > > -- > > > Softaddicts<lprefo...@softaddicts.ca <javascript:>> sent by ibisMail > from > > > my ipad! > > > > > > > -- > > -- > > You received this message because you are subscribed to the Google > > Groups "Clojure" group. > > To post to this group, send email to clo...@googlegroups.com<javascript:> > > Note that posts from new members are moderated - please be patient with > your first post. > > To unsubscribe from this group, send email to > > clojure+u...@googlegroups.com <javascript:> > > For more options, visit this group at > > http://groups.google.com/group/clojure?hl=en > > --- > > You received this message because you are subscribed to the Google > Groups "Clojure" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to clojure+u...@googlegroups.com <javascript:>. > > For more options, visit https://groups.google.com/groups/opt_out. > > > -- > Softaddicts<lprefo...@softaddicts.ca <javascript:>> sent by ibisMail from > my ipad! > -- -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
