Re: Clojure vs Scala - anecdote
Thanks for sharing Sean, very interesting! Ambrose -- 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
Clojure vs Scala - anecdote
I just wanted to share this experience from World Singles... Back in November 2009, we started developing with Scala. We needed a long-running process that published large volumes of changes from our member database as XML packets published to a custom search engine. The mapping from half a dozen tables in the database to a flat XML schema was pretty complex and the company had tried a number of solutions with mixed success in the past. I introduced Scala based on the promises of performance, concurrency and type safety - and conciseness (especially with XML being a native data type in Scala). We've been running the Scala publishing daemons in production for most of two years. Generally they work pretty well but, under stress, they tend to hit Out of Memory exceptions and, after a lot of poking around, we became fairly convinced it was due (at least in part) to the default actor implementation in Scala. Scala is going to fold in Akka soon and we had been considering migrating to Akka anyone... But having introduced Clojure this year (after experimenting with it since about May last year), we figured we'd have a short spike to create a Clojure version of the Scala code to see how it worked out. It took about 15 hours to recreate the publishing daemon in Clojure and get it to pass all our tests. Today we ran a "soak test" publishing nearly 300,000 profiles in one run. The Scala code would fail with OoM exceptions if we hit it with 50,000 profiles in one run (sometimes less). The Clojure code sailed thru and is still happily running - so we'll be replacing the Scala code during our next production build. The other aspect that's interesting is that the Scala code totaled about 1,000 lines (about 31k characters of code). The Clojure replacement is just under 260 lines (around 11.5k characters of code). Neither code base has much in the way of comments (*ahem* - I'm not proud of that, just pointing out that there's no "noise" offsetting the code comparison). That doesn't include unit tests either, it's just the raw production code. The form of the Clojure code mostly follows the form of the Scala code, most of the same functions - it was very functional Scala - with some refactoring to helper functions to make it more modular and more maintainable. The net result is (obviously) that we'll be taking the Clojure publishing daemon to production and we'll be dropping Scala completely. Kudos to Rich Hickey and the Clojure/core team for creating a great general purpose language that can solve big problems - thank you! -- Sean A Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ World Singles, LLC. -- http://worldsingles.com/ Railo Technologies, Inc. -- http://www.getrailo.com/ "Perfection is the enemy of the good." -- Gustave Flaubert, French realist novelist (1821-1880) -- 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: lambda function returning a constant?
On Tue, Sep 6, 2011 at 7:32 PM, julianrz wrote: > I come from Scala experience, where it is easy to define a quick > lambda function returning a constant or another simple expression, > e.g. "=> true" is a function with no args and returning true. Things > like that are sometimes useful to pass into higher-order functions > expecting a function, not a constant. I guess I should forgo the macro > and go directly with (fn [] true) Have you tried (constantly true)? The main difference is that it will ignore all arguments, but perhaps it's a more concise way of expressing what you want. -Phil -- 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: ClojureSphere - browse the Clojure ecosystem
On 7 September 2011 01:17, Justin Kramer wrote: > Prompted by a question on IRC a couple days ago, I built a tool that allows > you to browse the dependency graph of Clojure projects from GitHub & > Clojars: > > http://clojuresphere.herokuapp.com/ > > You can see dependencies of a project, but also projects which depend on > it. You can also see how many projects depend on a specific version > (combined current & historical usage). > > There are caveats, which you can read about on GitHub: > https://github.com/jkk/clojuresphere > > If anyone is interested in having this sort of thing added to Clojars, > ClojureDocs, or other community sites, let me know. > > > Very nice tool. I found a lot of libraries I haven't yet got on Clojure Libraries [1]. I might see if I can link through to the corresponding page on clojuresphere. [1] http://clojure-libraries.appspot.com -- 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: lambda function returning a constant?
On Sep 6, 2011, at 10:43 PM, Armando Blancas wrote: > For something like "=> true" try: > user=> (defmacro => [expr] `(fn [] ~expr)) > #'user/=> (macroexpand-1 '(=> true)) > (clojure.core/fn [] true) Alternatively: (constantly true) -- 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: lambda function returning a constant?
> (#(true)), is this not calling a function that has no arguments and > returns true? But it still gives same exception Not really: user=> (macroexpand-1 '#(true)) (fn* [] (true)) > I guess I should forgo the macro > and go directly with (fn [] true) For something like "=> true" try: user=> (defmacro => [expr] `(fn [] ~expr)) #'user/=> (macroexpand-1 '(=> true)) (clojure.core/fn [] true) -- 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 1.3 Beta 3
I'm confused about the notes on section 2.2 Better Exception Reporting. There is a link to the Error Handling notes but it only lists several approaches for handling errors, but it doesn't describe how messages will be reported better in this release. I feel this would be a good place to provide some examples. -Brent On Sep 5, 11:18 pm, cran1988 wrote: > I love you all !!! -- 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 1.3: "defs can now have docstrings"; how so?
On Tue, Sep 6, 2011 at 9:13 AM, Meikel Brandmeyer (kotarak) wrote: > user=> (def foo "A foo" :foo) > #'user/foo > user=> (doc foo) > - > user/foo > A foo > nil Hrm. Doc on a var not bound to a function or macro doesn't print its (default) value? -- Protege: What is this seething mass of parentheses?! Master: Your father's Lisp REPL. This is the language of a true hacker. Not as clumsy or random as C++; a language for a more civilized age. -- 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: Re: clojure and emacs
I too used to do lein swank from the cmd prompt and then used to load emacs and then used to M-x slime-connect. However I've come to know three modes in emacs - multi-term, shell and eshell mode (which is like a command prompt in emacs), so you can do M-x multi-term, M-x shell or M-x eshell. Each has its own peculiarities but it's better than switching between a cmd prompt and emacs. Manoj. -- 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: lambda function returning a constant?
Thanks, I realize my example is a bit of a corner case, and feels a little artificial:) It came after some narrowing down a larger problem Another thing that appeared curious to me, is that Clojure apparently counts unique %'s inside the #() definition to determine arity of the macro. But does this mean that macros with no arguments should be legal? How about this: (#(true)), is this not calling a function that has no arguments and returns true? But it still gives same exception I come from Scala experience, where it is easy to define a quick lambda function returning a constant or another simple expression, e.g. "=> true" is a function with no args and returning true. Things like that are sometimes useful to pass into higher-order functions expecting a function, not a constant. I guess I should forgo the macro and go directly with (fn [] true) I think all of this confusion could have been avoided if the compiler did a better error message, e.g. actually citing the definition of #() and what it expanded into? Would improve usability. Even macroexpand does not provide any useful info in this case... Certainly macros are not for the fainthearted anyway, but all literature seems to go into #() really fast, so it will be stumbled upon by novices Julian On Sep 6, 12:44 pm, Laurent PETIT wrote: > 2011/9/4 julianrz > > > Hello All, > > I am new to Clojure. Surprised why this code does not work: > > > user=> (filter #(%) [1 2 3]) > > ClassCastException java.lang.Long cannot be cast to clojure.lang.IFn > > > Here my intent behind #(%) is to define a lambda function returning > > its argument. Since Clojure defines truth on any type, it should be > > acceptable as filter function, and the result should be the original > > array > > > Some narrowing down. What's #(%) really good for? > > Hello, > > #(%) is a macro which expands to (fn* [p1#] (p1#)) > > #(%) could only be 'useful' if % is a callable without arguments. > > What you seem to be after is the builtin function named identity : identity > returns its argument : > > Clojure> (filter identity [1 true false nil]) > (1 true) > Clojure> > > HTH, > > -- > Laurent > > > > > user=> #(%) > > # > > > so it is a function > > > user=> (#(%)) > > ArityException Wrong number of args (0) passed to: user$eval26$fn > > > Ok, here not enough arguments supplied, fair enough. Let's fix that: > > user=> (#(%) 1) > > ClassCastException java.lang.Long cannot be cast to clojure.lang.IFn > > > Same problem as the first example. So Clojure understands this is a > > function, knows it takes some arguments, but cannot call it? What's > > wrong? The following works: > > > (user=> (filter (fn [a] a) [1 2 3]) > > (1 2 3) > > > So apparently it has something to do with the fact that #() is > > shorthand. So in my case, it produces a function which cannot be > > used... In fact, it seems to just yield the constant, not a function. > > Ask me, it should work (auto-wrap the constant in a function) or the > > expression should be illegal. I think it deserves better > > diagnostics... > > > Also, in Practical Clojure book, it says: "The shothand function form > > #(* %1 %2) is actually identical to the longer form (fn [x y] (* x y)) > > before it is even seen by the compiler." If you literally apply this > > rule, you will get > > > ((fn[x] (1)) 1) > > > which throws same exception, not surprisingly, since it tries to > > evaluate 1 as a fucntion. What it should have done is transform the > > expression into > > > ((fn[x] 1) 1) > > > which works fine... Special-case it? > > > What do you think? > > > Julian > > > -- > > 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: ClojureSphere - browse the Clojure ecosystem
Thanks, glad you like it.
Note that dependents are listed for an artifact ID ("clojure-contrib") when
any version of the dependent depends on any version of that artifact ID. So
some of those libs may have already migrated to the new clojure contrib
libs. Clicking a version will show which specific versions are dependent:
http://clojuresphere.herokuapp.com/clojure-contrib/org.clojure/1.2.0
Will probably make some changes to clarify that...
Justin
On Tuesday, September 6, 2011 7:03:23 PM UTC-4, Sean Corfield wrote:
>
> On Tue, Sep 6, 2011 at 8:17 AM, Justin Kramer wrote:
> > Prompted by a question on IRC a couple days ago, I built a tool that
> allows
> > you to browse the dependency graph of Clojure projects from GitHub &
> > Clojars:
> > http://clojuresphere.herokuapp.com/
>
> This is very cool Justin!
>
> I see that clojure.contrib has about 1,400 projects that depend on
> it... all of which need to be migrated to the new, modular contrib
> libraries at some point! :)
>
> http://clojuresphere.herokuapp.com/clojure-contrib
> --
> Sean A Corfield -- (904) 302-SEAN
> An Architect's View -- http://corfield.org/
> World Singles, LLC. -- http://worldsingles.com/
> Railo Technologies, Inc. -- http://www.getrailo.com/
>
> "Perfection is the enemy of the good."
> -- Gustave Flaubert, French realist novelist (1821-1880)
>
>
--
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: On Lisp with Clojure
On Sep 6, 11:20 am, Michael Jaaka wrote: > Btw. it looks like Clojure is missing an ability to program reader. > > It would allow to program a syntax. This is by design as there is no good way to namespace syntax. > The tail recursion and continuations also would be awesome. Those aren't provided because the tight integration with the JVM makes it impossible. -- 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: defrecord == premature optimization?
> Am Dienstag, 6. September 2011 schrieb Alasdair MacLeod : > I guess the only gotcha is if a function treats the record as a map > and > tries to access a field by putting the record in function position: > > user=> (defrecord Person [first last]) > user.Person > user=> ((Person. "Joe" "Bloggs"):first ) > java.lang.ClassCastException: user.Person cannot be cast to > clojure.lang.IFn (NO_SOURCE_FILE:0) > > That's kind of bad, IMO. > > Is that on purpose? What's the rationale? This is by design. Function position indicates that the data structure is a collection, not a (logical) record. > Aren't defrecords supposed to be drop-in specializations of maps? Where maps are used as records, but not where maps are used as collections. Stu Stuart Halloway Clojure/core http://clojure.com -- 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: ClojureSphere - browse the Clojure ecosystem
On Tue, Sep 6, 2011 at 8:17 AM, Justin Kramer wrote: > Prompted by a question on IRC a couple days ago, I built a tool that allows > you to browse the dependency graph of Clojure projects from GitHub & > Clojars: > http://clojuresphere.herokuapp.com/ This is very cool Justin! I see that clojure.contrib has about 1,400 projects that depend on it... all of which need to be migrated to the new, modular contrib libraries at some point! :) http://clojuresphere.herokuapp.com/clojure-contrib -- Sean A Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ World Singles, LLC. -- http://worldsingles.com/ Railo Technologies, Inc. -- http://www.getrailo.com/ "Perfection is the enemy of the good." -- Gustave Flaubert, French realist novelist (1821-1880) -- 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: defrecord == premature optimization?
Am Dienstag, 6. September 2011 schrieb Alasdair MacLeod : > > I guess the only gotcha is if a function treats the record as a map > and > tries to access a field by putting the record in function position: > > user=> (defrecord Person [first last]) > user.Person > user=> ((Person. "Joe" "Bloggs"):first ) > java.lang.ClassCastException: user.Person cannot be cast to > clojure.lang.IFn (NO_SOURCE_FILE:0) > That's kind of bad, IMO. Is that on purpose? What's the rationale? Aren't defrecords supposed to be drop-in specializations of maps? -- __ Herwig Hochleitner -- 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: lambda function returning a constant?
As Laurent says, you should just use the built-in `identity` function, but you can write it yourself: as you noticed, (fn [x] x) works, but if you want to do it with the shorthand syntax you can use #(do %). On Sep 4, 1:56 pm, julianrz wrote: > Hello All, > I am new to Clojure. Surprised why this code does not work: > > user=> (filter #(%) [1 2 3]) > ClassCastException java.lang.Long cannot be cast to clojure.lang.IFn > > Here my intent behind #(%) is to define a lambda function returning > its argument. Since Clojure defines truth on any type, it should be > acceptable as filter function, and the result should be the original > array > > Some narrowing down. What's #(%) really good for? > > user=> #(%) > # > > so it is a function > > user=> (#(%)) > ArityException Wrong number of args (0) passed to: user$eval26$fn > > Ok, here not enough arguments supplied, fair enough. Let's fix that: > user=> (#(%) 1) > ClassCastException java.lang.Long cannot be cast to clojure.lang.IFn > > Same problem as the first example. So Clojure understands this is a > function, knows it takes some arguments, but cannot call it? What's > wrong? The following works: > > (user=> (filter (fn [a] a) [1 2 3]) > (1 2 3) > > So apparently it has something to do with the fact that #() is > shorthand. So in my case, it produces a function which cannot be > used... In fact, it seems to just yield the constant, not a function. > Ask me, it should work (auto-wrap the constant in a function) or the > expression should be illegal. I think it deserves better > diagnostics... > > Also, in Practical Clojure book, it says: "The shothand function form > #(* %1 %2) is actually identical to the longer form (fn [x y] (* x y)) > before it is even seen by the compiler." If you literally apply this > rule, you will get > > ((fn[x] (1)) 1) > > which throws same exception, not surprisingly, since it tries to > evaluate 1 as a fucntion. What it should have done is transform the > expression into > > ((fn[x] 1) 1) > > which works fine... Special-case it? > > What do you think? > > Julian -- 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: lambda function returning a constant?
2011/9/4 julianrz > Hello All, > I am new to Clojure. Surprised why this code does not work: > > user=> (filter #(%) [1 2 3]) > ClassCastException java.lang.Long cannot be cast to clojure.lang.IFn > > Here my intent behind #(%) is to define a lambda function returning > its argument. Since Clojure defines truth on any type, it should be > acceptable as filter function, and the result should be the original > array > > Some narrowing down. What's #(%) really good for? > Hello, #(%) is a macro which expands to (fn* [p1#] (p1#)) #(%) could only be 'useful' if % is a callable without arguments. What you seem to be after is the builtin function named identity : identity returns its argument : Clojure> (filter identity [1 true false nil]) (1 true) Clojure> HTH, -- Laurent > > user=> #(%) > # > > so it is a function > > user=> (#(%)) > ArityException Wrong number of args (0) passed to: user$eval26$fn > > Ok, here not enough arguments supplied, fair enough. Let's fix that: > user=> (#(%) 1) > ClassCastException java.lang.Long cannot be cast to clojure.lang.IFn > > Same problem as the first example. So Clojure understands this is a > function, knows it takes some arguments, but cannot call it? What's > wrong? The following works: > > (user=> (filter (fn [a] a) [1 2 3]) > (1 2 3) > > So apparently it has something to do with the fact that #() is > shorthand. So in my case, it produces a function which cannot be > used... In fact, it seems to just yield the constant, not a function. > Ask me, it should work (auto-wrap the constant in a function) or the > expression should be illegal. I think it deserves better > diagnostics... > > Also, in Practical Clojure book, it says: "The shothand function form > #(* %1 %2) is actually identical to the longer form (fn [x y] (* x y)) > before it is even seen by the compiler." If you literally apply this > rule, you will get > > ((fn[x] (1)) 1) > > which throws same exception, not surprisingly, since it tries to > evaluate 1 as a fucntion. What it should have done is transform the > expression into > > ((fn[x] 1) 1) > > which works fine... Special-case it? > > What do you think? > > Julian > > -- > 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: defrecord == premature optimization?
> The types created by defrecord implement the same interfaces as maps, > so they can be used as maps. I guess the only gotcha is if a function treats the record as a map and tries to access a field by putting the record in function position: user=> (defrecord Person [first last]) user.Person user=> ((Person. "Joe" "Bloggs"):first ) java.lang.ClassCastException: user.Person cannot be cast to clojure.lang.IFn (NO_SOURCE_FILE:0) user=> -- 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
lambda function returning a constant?
Hello All, I am new to Clojure. Surprised why this code does not work: user=> (filter #(%) [1 2 3]) ClassCastException java.lang.Long cannot be cast to clojure.lang.IFn Here my intent behind #(%) is to define a lambda function returning its argument. Since Clojure defines truth on any type, it should be acceptable as filter function, and the result should be the original array Some narrowing down. What's #(%) really good for? user=> #(%) # so it is a function user=> (#(%)) ArityException Wrong number of args (0) passed to: user$eval26$fn Ok, here not enough arguments supplied, fair enough. Let's fix that: user=> (#(%) 1) ClassCastException java.lang.Long cannot be cast to clojure.lang.IFn Same problem as the first example. So Clojure understands this is a function, knows it takes some arguments, but cannot call it? What's wrong? The following works: (user=> (filter (fn [a] a) [1 2 3]) (1 2 3) So apparently it has something to do with the fact that #() is shorthand. So in my case, it produces a function which cannot be used... In fact, it seems to just yield the constant, not a function. Ask me, it should work (auto-wrap the constant in a function) or the expression should be illegal. I think it deserves better diagnostics... Also, in Practical Clojure book, it says: "The shothand function form #(* %1 %2) is actually identical to the longer form (fn [x y] (* x y)) before it is even seen by the compiler." If you literally apply this rule, you will get ((fn[x] (1)) 1) which throws same exception, not surprisingly, since it tries to evaluate 1 as a fucntion. What it should have done is transform the expression into ((fn[x] 1) 1) which works fine... Special-case it? What do you think? Julian -- 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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
On 4 September 2011 20:40, Dennis Haupt wrote: > > Am 04.09.2011 19:08, schrieb Justin Kramer: >> On Sunday, September 4, 2011 12:21:23 PM UTC-4, HamsterofDeath >> wrote: >> >> >> Some other comments: >> >> - Nested defns are not good. > > why? imo, nested function/method definitions are a tool to fine-tune > accessibility. just like public/private, but much more powerful. why > shouldn't i use that? why make everything flat and confuse the next > guy who's trying to figure out which def is supposed to be used by him > and which is a helper function? > You are quite correct. Nested function definitions are in fact a good idea, for precisely the reasons you mention. If a function is only to be used locally, within another function then you should make it a local function. However, using nested defn's is not the way to do this, as defn always creates a top-level binding for a function, as is described by the following REPL session: user=> (defn outside [x] (defn inside [y] (println y)) (inside x) (println x)) #'user/outside user=> (outside 10) 10 10 nil user=> (inside 10) 10 nil As you can see, I can call the inside function from the top-level scope, even though the defn is nested inside another defn. The answer to doing what you want is anonymous functions. Using local anonymous functions solves the problem by ensuring that the function does not enter the global namespace. Anonymous functions are created with the fn special form, http://clojure.org/special_forms#fn . The trick is you can of course use let to bind a local-name to an anonymous function within your outer function. Adapting the previous example using anonymous functions, and then using "let" to bind them to a local name, would look like this: user=> (defn outside [x] (let [inside (fn [y] (println y))] (inside x) (println x)) user=> (outside 10) 10 10 nil user=> (inside 10) java.lang.Exception: Unable to resolve symbol: inside in this context (NO_SOURCE_FILE:22) As you can see, the anonymous function is now bound to the local name "inside" only within the"outside" function, and is not accessible from outside. -- 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 and emacs
Yes, keeping track of all those versions is tricky. At the moment, the Lein method in emacs seems simple enough. We'll see. On Sat, Sep 3, 2011 at 10:06 PM, Li Zhixiong wrote: > Basically, the problem I get is due to version conflict between > swank-clojure and slime, I download the same version as swank-clojure, that > is, 20100404, then it works. > > > On Sun, Sep 4, 2011 at 8:19 AM, myriam abramson wrote: > >> >> Thanks. I am getting some slime errors unfortunately. I'll have to track >> that down. >> >> On Thu, Sep 1, 2011 at 1:36 PM, Paul Nakata wrote: >> >>> On Thursday, September 1, 2011 10:03:13 AM UTC-7, melipone wrote: I do like "lein repl" on the command line. How can I have that in emacs? Basically, if I have a project in Lein, how can I do a (require 'projectname) and have all the libraries loaded in emacs? I'm just using M-x inferior-lisp at this point. I find swank-clojure too complex for right now. Maybe later. TIA melipone >>> >>> >>> I use clojure-jack-in as described here: http://technomancy.us/149 , >>> although if you find swank-clojure too complex for you it may not be a great >>> fit. I have personally found clojure-jack-in to be very simple and easy to >>> use; I would advocate at least trying it out. >>> >>> -- >>> 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 >> > > > > -- > Best regard! > Yours sincerely, Li Zhixiong > > > -- > 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: Re: clojure and emacs
Thanks, that's a good idea and best of all, it's working for me! I didn't know the Mx cd command to change default directory. On Sep 3, 2011 9:40pm, Benny Tsai wrote: Sorry, what I meant to say in the last line is: And as long as you start emacs somewhere in your lein project directory (or "Mx cd" to it), you'll automatically be dropped into the main namespace (if you have one defined via :main in project.clj), and the other project namespaces will be available to (require ...) in your REPL buffer. On Saturday, September 3, 2011 7:32:28 PM UTC-6, Benny Tsai wrote:You can set "lein repl" as your inferior lisp program via: Mx describe-variableinferior-lisp-program And as long as you start emacs somewhere in your lein project directory (or "Mx cd" to it), you'll have all the libraries loaded in your REPL buffer. On Thursday, September 1, 2011 11:03:13 AM UTC-6, melipone wrote:I do like "lein repl" on the command line. How can I have that in emacs? Basically, if I have a project in Lein, how can I do a (require 'projectname) and have all the libraries loaded in emacs? I'm just using Mx inferior-lisp at this point. I find swank-clojure too complex for right now. Maybe later. TIA melipone -- 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: JVM 7 support (invokedynamic)
On 09/06/2011 08:42 AM, Paul Stadig wrote: So far all I have done is update the bundled ASM and modify Clojure to emit Java7 class files, but I'm getting VerifyErrors (same as Tal). It's possible that this is a bug in the way that ASM automatically calculates stack maps, or perhaps it is the best that ASM can do, in which case the Clojure compiler would have to be modified to do bookkeeping around stack maps. Cool! I'm making some progress with some folk on the ASM mailing list. We might crack this yet. -Tal -- 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: On Lisp with Clojure
And last tough is that maybe there should be a build in support for trees. Trees are to maps like lists to vectors. They have different characteristic on CRUD operations and CPU/RAM resources. With reader macros it would be possible to implement it by even not bothering Rich Hickey. Also there is another thought, that it would be nice to introduce symbols priorities (like there are priorities for evaluation of arithmetic notation), so we could omit some parentheses (code would be compact like in python or ruby). The would be back during the compile-time. So with something like: %( let a (do-some-comp 2 3) if a (do-other-thing a) map (fn [ d e ] ) list 1 2 3 ) It would be available for macros and during evaluation time as: (let[ a (do-some-comp 2 3) ] (if a (do-other-thing a) (map (fn [ d e ] ) (list 1 2 3))) As you can see I can mix the code, to point the order of evaluation, but for the rest the priorities resolves the order. Note that the reader should have knowledge of lines (in its meta data context). -- 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: not= counterintuitive?
The clojure.contrib.combinatorics/combinations does do exactly what I was trying to do, although I was doing the problem as an exercise in how to do it, and not in really needing combinations for something else. The combinatorics library certainly does it in a more generic way. Since I knew that I was dealing with numbers as input, I actually ended up using (> m n o) as my test condition, which has the same effect of guaranteeing all the numbers are distinct. I was looking for unique sets where order didn't matter. Thanks for the input, all! -- 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: On Lisp with Clojure
Btw. it looks like Clojure is missing an ability to program reader. It would allow to program a syntax. == 9. The whole language always available. There is no real distinction between read-time, compile-time, and runtime. You can compile or run code while reading, read or run code while compiling, and read or compile code at runtime. Running code at read-time lets users reprogram Lisp's syntax; running code at compile-time is the basis of macros; compiling at runtime is the basis of Lisp's use as an extension language in programs like Emacs; and reading at runtime enables programs to communicate using s- expressions, an idea recently reinvented as XML. == The tail recursion and continuations also would be awesome. Btw. Clojure looks like tweaked Arc. Good point that it is supporting container data structures - lists, vectors, maps and sets. -- 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: On Lisp with Clojure
Well, these attempts stop very quickly. But I have found code extract from the book http://lib.store.yahoo.net/lib/paulgraham/onlisp.lisp maybe someone with good knowledge could port it? On Sep 2, 1:16 pm, Eric Lavigne wrote: > > Is there any project on github which goal is to implement all code > > from On Lisp book in Clojure? > > Michael Fogus and Stuart Halloway have both ported parts of On Lisp to > Clojure. > > Michaelhttp://blog.fogus.me/tag/onlisp/ > > Stuarthttp://thinkrelevance.com/blog/2008/12/12/on-lisp-clojure.htmlhttps://github.com/stuarthalloway/onlisp-clojure -- 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: ClojureSphere - browse the Clojure ecosystem
On Tue, Sep 6, 2011 at 11:28 AM, Chouser wrote: > On Tue, Sep 6, 2011 at 11:17 AM, Justin Kramer wrote: >> Prompted by a question on IRC a couple days ago, I built a tool that allows >> you to browse the dependency graph of Clojure projects from GitHub & >> Clojars: >> http://clojuresphere.herokuapp.com/ > > Very nice! Thanks for creating this. > > --Chouser > Yeah, very cool! And I especially like this comment in the source: ;; we don't need no stinkin database :) Dave -- 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: ClojureSphere - browse the Clojure ecosystem
On Tue, Sep 6, 2011 at 11:17 AM, Justin Kramer wrote: > Prompted by a question on IRC a couple days ago, I built a tool that allows > you to browse the dependency graph of Clojure projects from GitHub & > Clojars: > http://clojuresphere.herokuapp.com/ Very nice! Thanks for creating this. --Chouser -- 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: ClojureSphere - browse the Clojure ecosystem
Prompted by a question on IRC a couple days ago, I built a tool that allows you to browse the dependency graph of Clojure projects from GitHub & Clojars: http://clojuresphere.herokuapp.com/ You can see dependencies of a project, but also projects which depend on it. You can also see how many projects depend on a specific version (combined current & historical usage). There are caveats, which you can read about on GitHub: https://github.com/jkk/clojuresphere If anyone is interested in having this sort of thing added to Clojars, ClojureDocs, or other community sites, let me know. Justin -- 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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Am 06.09.2011 16:28, schrieb Meikel Brandmeyer (kotarak):
>
> Am Dienstag, 6. September 2011 15:57:16 UTC+2 schrieb Mark
> Rathwell:
>
> You want an anonymous function:
>
> (fn [x] (= x 2))
>
> or the equivalent shorthand form:
>
> #(= % 2)
>
> Or even more short-hand: #{2} (for all 2s not in #{nil false})
>
> Scary.
too scary.
= % 2 is just right.
>
> Sincerely Meikel
>
>
>
> -- 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
- --
-BEGIN PGP SIGNATURE-
Version: GnuPG v2.0.14 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/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=H1Fa
-END PGP SIGNATURE-
--
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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 > > or the equivalent shorthand form: > > #(= % 2) > should i ever write a bigger app with clojure, it will be filled with these. i like them. -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.14 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJOZi37AAoJENRtux+h35aGzQEP/RlGgWN0hRuCTBjyR7/692DH oTpAdu06MFU3jT7dPiXy1lHG/ZBZantNaHKALLKfREV+yHCnoQJUuGXRRUn1lDrF uMmMreujblbeviL9h+S0pJ9q1yTk/MH4+ceHUpM2FzPjSYpsok1OKwGFG7T2Diwb eg61TAQKV82Uwu9+06LnEwHdySs3JRfKUp4BPjGHYxXEFTQIZGVnFXbjgY5iP4xr Fi9EBZhdROF8dEk26mxWhxMLoyVx1ZdKe6bnNeAjKsTFnnnGxmot2fgtsJFxM/Rg D5bSpyEWnw6MlJgpUwDOfASCEbGDCS/oaF5pij7045apJLSVro1Py0/+D5TBiuwI OVq9mCURWeevHTISlUKHFskwJ6PlQ0rUxuXdoU+IEjdEXOw4+W9DJ4fMKk/HbDku SteyTeA3xOk4lLIIeq1t1Fhv0FwDFPisa2UcqEV6yMcrC4J9TySEnKl4hynbT+On g+VXDbTAJucCF4ltFTjPCZyAzZe5A4G6NktBlZ8NvBblERthbsLIX3JZMfoayxSv Fe5KVsrcbn88VSxVUOrZ9/RHsG+3QYsMRfRTlTCw/8hlVfP3Wg8t3ieieFVIavMg G1KwUMDDyUaeWt01BZU1c3NqA8NsjBYjukET2tnc35BKetb32I8qeRHu4W9K60Qf 9CHjRZb6IH1J1BLdKCzR =WeGr -END PGP SIGNATURE- -- 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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
Am Dienstag, 6. September 2011 15:57:16 UTC+2 schrieb Mark Rathwell:
>
> You want an anonymous function:
>
> (fn [x] (= x 2))
>
> or the equivalent shorthand form:
>
> #(= % 2)
>
Or even more short-hand: #{2} (for all 2s not in #{nil false})
Scary.
Sincerely
Meikel
--
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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 > It was not a syntax error. Your expression just had the wrong > return value. I don't see how an IDE could help here. > > by type inference. i don't know how far an ide could track the types in clojure since it's completely lacking any type annotations, but in scala it works really well (although it stops at method declarations, there you have to add type annotations) and such an error (returning the wrong type in a situation where it's clear what is expected) would have been highlighted at coding time (even before compilation) the ideal situation would be something like (def x [foo] (+ 5 foo)) here, the ide could look into "+" and check which types could be put into "+" without making it crash ;). that information must provided somehow (hard coded into ide, provided as parsable documentation, whatever) at all basic functions. this would enable the ide to recursively traverse the call tree and figure out what can be applied to which function. in my example, it would be "x" is called with a parameter "foo". "foo" is given to "+" as the second parameter of a 2 parameter list. let's look into "+". oh i see, it has to be a java.lang.Number. is it? yes -> k. no -> highlight "(x param)" as an error. -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.14 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJOZi28AAoJENRtux+h35aGtQMQAKAemGLyIRP+6h9KaL3ix3U+ qOgupgqNGNtkDZ2ibYlYRfunJKRm8KLwVnh/0jiTBukY8ppOJTgTuUde6abcl10G pYomKWPNZBxTRAYI4nRtTKk9cEj0yx3CLYislbk4buxgmLCLNSBOLBmWBD7F8Rxz fR++KLiJJR7JJ/HszrGPr54Vo7AnI1Rfk1+FcX19UJnmIj1qdfLWq8wTSA6oy063 ZinLUBl+3OfATDJlxUMPJdPOjHMDfQ13MlksUVJq4696rhKjvVdMpIpb9REOmg/Y +ZxKVLBKr+8RruzDcUJwoiVrJOi6f1pXIMzqsKDhaqhDJwr0iHhY98SjkQBAyozI tLPQmnudMEB6gS7F2/aW2idZ9WD+XiUyoCt2FwplVJqBveBWTAUAXWdpeAl0rmVG Qjh5hiUgHs4W8X7qmlTzsZPFlwJ+rYZoHzqaw6HcWnGX9H6gv2ExM1+ELJ25dTHh 0AJZl26WLZ7eXZNAeO62FDET64RR3Oib6tVDTzP41IdLzjUx+zwFjfQFOVlEE/Cx m5azpk8d11zytG2nlcC58Yg8SBz0ZGyTtv4JJ139JqJdVzpYeol7QXZbkrgY5w3/ DQ5+bW7QjqxmD4FbjTcIDcxWcyg+SXda5p4O1ZqxQSWhNa6EzLrWPLufFBfsNyQa kUjdYxBTJkgtbhl8jxLb =6RyY -END PGP SIGNATURE- -- 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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
You want an anonymous function: (fn [x] (= x 2)) or the equivalent shorthand form: #(= % 2) Sent from my iPhone On Sep 6, 2011, at 9:35 AM, Dennis Haupt wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > figured it out, i the () were a bit messed up. the working code: > > (def open 0) > (def p1 1) > (def p2 2) > (def emptyfield [open open open open open open open open open]) > > (defn indexOf [x y] (+ x (* y 3))) > > (defn withmove [x,y,player,field] > (assoc field (indexOf x y) player)) > > (defn winner [field] > (letfn [(slashOwnedBy [player] (= [player] (distinct [(nth field 0) > (nth field 4) (nth field 8)]))) > (backslashOwnedBy [player] (= [player] (distinct [(nth field > 2) (nth field 4) (nth field 6)]))) > (rowOwnedBy [row player] >(let [beginIndex (indexOf 0 row) > currow (subvec field beginIndex (+ 3 beginIndex))] > (= [player] (distinct currow > (colOwnedBy [col player] >(let [beginIndex (indexOf col 0) > curcol (take-nth 3 (drop beginIndex field))] > (= [player] (distinct curcol > (winPred [player] >(loop [cnt 0] > (if (= cnt 3) >(or (slashOwnedBy player) (backslashOwnedBy player)) >(or (rowOwnedBy cnt player) (colOwnedBy cnt player) > (recur (inc cnt))] >(let [winnerIfExists (filter winPred [p1 p2])] > (if (empty? winnerIfExists) open (first winnerIfExists) > > > (let [moves [[2 0 p1] [1 1 p1] [0 2 p1]]] > (defn fold [field nextmove] >(withmove (nth nextmove 0) (nth nextmove 1) (nth nextmove 2) field)) > (let [endstate (reduce fold emptyfield moves)] >(println (winner endstate > > a few questions: > is there a better way than > (= player (distinct currow)) > ? > > i'd like to write something like: > (every? (= parameter player) currow > > do i have to define the function via letfn before, or is there a way > to do it nested in the code? > > and more importantly: is there an ide that can point out syntax > errors? intellij idea can detect some parentheses/braces problems, but > i managed to trick it by adding too many ( and ). i got weird > exceptions and had to check everything manually. > > Am 04.09.2011 19:57, schrieb Sergey Didenko: >> Dennis, may I suggest you to read this great article on Clojure: >> http://java.ociweb.com/mark/clojure/article.html >> >> >> >> -- 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 > > > - -- > > -BEGIN PGP SIGNATURE- > Version: GnuPG v2.0.14 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iQIcBAEBAgAGBQJOZiGMAAoJENRtux+h35aGuSwP+gPkuR9tAyHUKUhqCrkFgtiJ > cuuD47EHMyws/IMwqra1RTBaCAaZbJLx9m4sFn9/KLhbGni7fzTt+zAJy1yxyW21 > RaqZJC43VgG6xmDQYVt54aY9zzHz3MkI3eXZBY6Wsd0yquu2NZjnleEvoUNzwsnI > nLi0nsyLkLMX6b/QdDj48XaatfeG48i5M+H9MlF7EpesoIntUEHhXRVhK1BnOeCk > ctd4bo0brdszBes7UhZl9abisaiW1vf+rWAAD8HPqcFg4tWUS//SRRmFyEUJtusc > GXwiPI5Meu0fKHKJv5EhQl87BD3lG+vLUn1XspYYmrZKn5G0ZxL7v/L5ol1g7Zs4 > doSVsWCkR3zMwyaQgrvj/IuvIMxhWhgXGYwdEBHstPJephlwCRC5sOQCLvjwJB6H > LEV0nx3m2GiWGH+jOqJ2M+j/OwsYNfPxEPRICLpUjm3lR+Whb1l+OL0fMwREgYkS > ySeto5Q2pI+pkwZc1PsM2YMUEBjBToZroIlMZw6N6IUuQPFNJBcHPakRNDUs93Du > nmg8kCGy+thBedbky7KxDW1bmBNFYxEWR2iASXkkIjhUdyrn3hVOxz1D1a6rM3Cb > S2CdXZG5HeiCsqghyQ/m36bqlLf8CTsFz60lb4Q0Wncpn/EDTSyYq76RRPfGoMBu > Nec7CzUkF8sat1lrZKxy > =v1mG > -END PGP SIGNATURE- > > -- > 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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
Hi, On Tuesday, September 6, 2011 3:35:08 PM UTC+2, HamsterofDeath wrote: > > > (every? (= parameter player) currow > i'd like to write something like: > > do i have to define the function via letfn before, or is there a way > to do it nested in the code? > you can create a function anytime using either the read-syntax #() or a call to fn: (every? #(= % player) currow) (every? (fn [param] (= param player)) currow) This creates local closures. In such a case, if player is 'rather constant', you might want to use partial, but I didn't look at your code closely. > and more importantly: is there an ide that can point out syntax > errors? intellij idea can detect some parentheses/braces problems, but > i managed to trick it by adding too many ( and ). i got weird > exceptions and had to check everything manually. > It was not a syntax error. Your expression just had the wrong return value. I don't see how an IDE could help here. Kind regards, Stefan -- 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: JVM 7 support (invokedynamic)
I started on some work to use invokedynamic instructions (instead of reflection) for calling Java interop. I based my work on 1.3beta2, and my goal was just to see how much of a performance difference it could make (if any). So far all I have done is update the bundled ASM and modify Clojure to emit Java7 class files, but I'm getting VerifyErrors (same as Tal). It's possible that this is a bug in the way that ASM automatically calculates stack maps, or perhaps it is the best that ASM can do, in which case the Clojure compiler would have to be modified to do bookkeeping around stack maps. I even tried moving to ASM trunk to see if it made any difference, but it didn't. Anyway, I pushed a couple of branches to my fork of Clojure: https://github.com/pjstadig/clojure/tree/indy-3.3.2 and https://github.com/pjstadig/clojure/tree/indy-trunk Perhaps when ASM 4.0 is finalized it will be a different story. Paul On Mon, Aug 29, 2011 at 7:05 PM, Tal Liron wrote: > On 08/29/2011 06:01 PM, Aaron Bedra wrote: > > The version of ASM that is bundled in Clojure is very old. This will > likely cause problems. You are correct in looking to ASM 4 since it has > started supported the JSR-292 stuff and other Java 7 changes. I am > planning on doing an extraction, update, and re-packaging of ASM in > Clojure as soon as Programming Clojure hits the printers. This most > likely won't get started until October though because of conferences. > > I've already done that for my branch (that was a task in itself! needed a > little monkeypatching to support Clojure's DynamicClassLoader), so you may > want to leave it to me. > > My code is in quite a messy state now and I'm embarrassed to make it public > quite yet... > > BTW, does somebody have an Eclipse Java code formatter configuration for > Clojure's wacky coding style? > > -Tal > > -- > 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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 thx, that's what i figured out a moment ago. i am used to allknowing ides Am 06.09.2011 15:25, schrieb Stefan Kamphausen: > hi, > > why does clojure want to cast the result to IFn? > > > if I parse that correctly, you have two parens around the > let-expression. That leads to Clojure evaluating the > let-expression, taking the result (which is the return value of the > line you mentioned: a Boolean) and trying to call that as a > function. > > Consider: > > user=> ((let [x :dont-care] +) 3 4) 7 > > Hope, this helps. > > Stefan > > -- 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 - -- -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.14 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJOZiHUAAoJENRtux+h35aGYNEQALHei3B68cM+QR/U4pRC2FkK cKmHplrziwWcnXysac9cSC9F4mmcDw+JnnYyB4YI4pCb9El8i8E6a53J5GvilOFX xG8HF6aUxaifticyQS7kpgG47VgeoaT5VKWcpZLFqZM6axSc8MIJ2ArRNCCMZMw3 bLcTEgk0JGWqjeub2b3/pUhFWI23EaCAv4BszKCnGYqhuG847+Ks3Vd0XFO1gKAo fwEC0QipX2+0T3rrZuF3AjKQpmEN2+iEpE7sTxrgjICXbnEzGAfK395HWc0Kn8KC +IXI3K2fMkJRB3M1rqRfRf+luxbw48oPgQa/uos/iK4dPcwkODhNCQwq9PFKkNp1 W9j+rLRRm5+n3p/HfIV4GTB3skKY0ij/X00NtsrCE7OM+bs03zAj6qE5ike/bwxv XEuUSaqR1vR3LgZ5ii6OW1tev1N86cw7Mi7yQBtAFilXEZ/En5dSdEwRTVjDRSoD nL59wjTNUZUcVTpQ5I4RUTEm8LX+/5d2bU/LHYVjqV49fxY0eDF6f5eMvBXwANo5 I+l/4uf37K3TD+hXGZkh0DcPdxeyltTRoetbtx+OQg64wFxCzz6nxnOytiDInmyD +k763My95U4Ex9gIxV6r0NSoJb8hcfQEKdru1Liktghc/wMtiBWfuhgRfOO0rZU/ +oP03MYnZzFZD4Hgakz0 =+Tuc -END PGP SIGNATURE- -- 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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 figured it out, i the () were a bit messed up. the working code: (def open 0) (def p1 1) (def p2 2) (def emptyfield [open open open open open open open open open]) (defn indexOf [x y] (+ x (* y 3))) (defn withmove [x,y,player,field] (assoc field (indexOf x y) player)) (defn winner [field] (letfn [(slashOwnedBy [player] (= [player] (distinct [(nth field 0) (nth field 4) (nth field 8)]))) (backslashOwnedBy [player] (= [player] (distinct [(nth field 2) (nth field 4) (nth field 6)]))) (rowOwnedBy [row player] (let [beginIndex (indexOf 0 row) currow (subvec field beginIndex (+ 3 beginIndex))] (= [player] (distinct currow (colOwnedBy [col player] (let [beginIndex (indexOf col 0) curcol (take-nth 3 (drop beginIndex field))] (= [player] (distinct curcol (winPred [player] (loop [cnt 0] (if (= cnt 3) (or (slashOwnedBy player) (backslashOwnedBy player)) (or (rowOwnedBy cnt player) (colOwnedBy cnt player) (recur (inc cnt))] (let [winnerIfExists (filter winPred [p1 p2])] (if (empty? winnerIfExists) open (first winnerIfExists) (let [moves [[2 0 p1] [1 1 p1] [0 2 p1]]] (defn fold [field nextmove] (withmove (nth nextmove 0) (nth nextmove 1) (nth nextmove 2) field)) (let [endstate (reduce fold emptyfield moves)] (println (winner endstate a few questions: is there a better way than (= player (distinct currow)) ? i'd like to write something like: (every? (= parameter player) currow do i have to define the function via letfn before, or is there a way to do it nested in the code? and more importantly: is there an ide that can point out syntax errors? intellij idea can detect some parentheses/braces problems, but i managed to trick it by adding too many ( and ). i got weird exceptions and had to check everything manually. Am 04.09.2011 19:57, schrieb Sergey Didenko: > Dennis, may I suggest you to read this great article on Clojure: > http://java.ociweb.com/mark/clojure/article.html > > > > -- 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 - -- -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.14 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJOZiGMAAoJENRtux+h35aGuSwP+gPkuR9tAyHUKUhqCrkFgtiJ cuuD47EHMyws/IMwqra1RTBaCAaZbJLx9m4sFn9/KLhbGni7fzTt+zAJy1yxyW21 RaqZJC43VgG6xmDQYVt54aY9zzHz3MkI3eXZBY6Wsd0yquu2NZjnleEvoUNzwsnI nLi0nsyLkLMX6b/QdDj48XaatfeG48i5M+H9MlF7EpesoIntUEHhXRVhK1BnOeCk ctd4bo0brdszBes7UhZl9abisaiW1vf+rWAAD8HPqcFg4tWUS//SRRmFyEUJtusc GXwiPI5Meu0fKHKJv5EhQl87BD3lG+vLUn1XspYYmrZKn5G0ZxL7v/L5ol1g7Zs4 doSVsWCkR3zMwyaQgrvj/IuvIMxhWhgXGYwdEBHstPJephlwCRC5sOQCLvjwJB6H LEV0nx3m2GiWGH+jOqJ2M+j/OwsYNfPxEPRICLpUjm3lR+Whb1l+OL0fMwREgYkS ySeto5Q2pI+pkwZc1PsM2YMUEBjBToZroIlMZw6N6IUuQPFNJBcHPakRNDUs93Du nmg8kCGy+thBedbky7KxDW1bmBNFYxEWR2iASXkkIjhUdyrn3hVOxz1D1a6rM3Cb S2CdXZG5HeiCsqghyQ/m36bqlLf8CTsFz60lb4Q0Wncpn/EDTSyYq76RRPfGoMBu Nec7CzUkF8sat1lrZKxy =v1mG -END PGP SIGNATURE- -- 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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
hi, > why does clojure want to cast the result to IFn? > if I parse that correctly, you have two parens around the let-expression. That leads to Clojure evaluating the let-expression, taking the result (which is the return value of the line you mentioned: a Boolean) and trying to call that as a function. Consider: user=> ((let [x :dont-care] +) 3 4) 7 Hope, this helps. Stefan -- 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
Aw: Clojure 1.3: "defs can now have docstrings"; how so?
user=> (def foo "A foo" :foo) #'user/foo user=> (doc foo) - user/foo A foo nil Sincerely Meikel -- 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: coming from statically typed oo languages - how do deal with complex objects graphs in clojure?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 i tried using letfn insteaf of defn for inner functions. (def open 0) (def p1 1) (def p2 2) (def emptyfield [open open open open open open open open open]) (defn indexOf [x y] (+ x (* y 3))) (defn withmove [x,y,player,field] (assoc field (indexOf x y) player)) (defn winner [field] (letfn [(rowOwnedBy [row player] ((let [beginIndex (indexOf 0 row) currow (subvec field beginIndex (+ 3 beginIndex))] (= [player] (distinct currow))) )) (colOwnedBy [col player] ((let [beginIndex (indexOf col 0) curcol (take-nth 3 (drop beginIndex field))] (= [player] (distinct curcol))) )) (winPred [player] ((loop [cnt 0] (if (= cnt 3) false (or (rowOwnedBy cnt player) (colOwnedBy cnt player) (recur (inc cnt)))] ((let [winnerIfExists (filter winPred [p1 p2])] (if (empty? winnerIfExists) open (first winnerIfExists)) (let [moves [[0 0 p1] [1 0 p1] [2 0 p1]]] (defn fold [field nextmove] (withmove (nth nextmove 0) (nth nextmove 1) (nth nextmove 2) field)) (let [endstate (reduce fold emptyfield moves)] (println (winner endstate i'm getting an exception: Caused by: java.lang.RuntimeException: java.lang.ClassCastException: java.lang.Boolean cannot be cast to clojure.lang.IFn in this line: (= [player] (distinct currow))) why does clojure want to cast the result to IFn? Am 04.09.2011 19:57, schrieb Sergey Didenko: > Dennis, may I suggest you to read this great article on Clojure: > http://java.ociweb.com/mark/clojure/article.html > > > > -- 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 - -- -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.14 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQIcBAEBAgAGBQJOZhuaAAoJENRtux+h35aGaF0P/1xnMYA/gUuvGsBnmM5VmGBQ ncU9+3E8h4EKClatl0rdo+B4BLObYsyg7Xb3IPVdGCf5lofQVOneX2Uk41tVvM/Q E98uxotCMUjVcaOuEtLUMNBOQCy0q31erOzdKlaaecQ2KTY+GvBRRxpAbo33uqmP DaGmSiyzTGkVp9PhKcMzEjneSOagEA6oG0cOOInarfQS8Q7gQXP6Wir63kVcps72 yhtNuJmhyTOQQ7H2c+j/+mawk12YHPmD4TmLLg2/cG3ZEeaGdWS2DeWL8FVKuZ4/ grYnP1PldaOCTsrcDDCEwkM/eNxCSVqopz3LIS7oyhr8eEp9j1/Gkko56YZZYWhL ITHE083+QZ7gi/F+kQmz3Yrd8ZCeoWW7mL18d8qMppRZYlrtywwhKnFARU24VYvB hh+9Twtv22oqBnQmP3Xf2kisaFGHaf8ke1yz1upvB2L996xo/wRI7rirxWQUZtOi XLYZIowcPRf27gpTpSFplqO+92awA4pcvOgpqUuIb3FYBmSuIQI9MatQ3IzaHh9T tlF6hqFWvgkzR98CBnM2RpgE//qb0sM/DC0/lth5jUoULRN3rmpMUiSIvdwDS8TH 60ipp6IG/m8Ou+rqlEF33oPQU8DKVF26DmS5X7zWB/36VioqmuD/STov3qIabAfx Pw4JDW8nmQwcDb4gSjPI =Pw61 -END PGP SIGNATURE- -- 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
Clojure 1.3: "defs can now have docstrings"; how so?
http://dev.clojure.org/display/doc/1.3
def's can already have doc strings, though it's not very convenient:
(def ^{:doc "documentation"} x 1)
Can someone give me a simple example?
// Ben
--
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: generic math, comparator and arithmetic libs
On 6 Sep, 2011, at 12:43 , Sam Aaron wrote: >> I have added a plain function not= to clojure.algo.generic.comparison as a >> convenience, it is just the negation of generic =. > > Would this still allow the overriding of not= to do somethign different to > the negation of generic =. If not, how might I achieve this? Just define your own multimethod not= instead! Konrad. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: generic math, comparator and arithmetic libs
On 6 Sep 2011, at 11:33, Konrad Hinsen wrote: > > I must assume that nobody read that message, as there should have been loud > complaints. There is obviously no difference in performance between = and > not=, as the result of either one is known as soon as one can decide equality > OR non-equality. > > I have added a plain function not= to clojure.algo.generic.comparison as a > convenience, it is just the negation of generic =. > Would this still allow the overriding of not= to do somethign different to the negation of generic =. If not, how might I achieve this? Sam --- http://sam.aaron.name -- 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: generic math, comparator and arithmetic libs
On 1 Sep, 2011, at 14:51 , Konrad Hinsen wrote: > On 1 Sep, 2011, at 10:35 , Alan Malloy wrote: > >> I don't see any reason for it to include !=, which can be implemented >> as (not (= a b)). Conversely, <= could be implemented as (or (< a b) >> (= a b)), but if either of those is expensive operations he gives you >> a chance to do a more-optimized <=. > > Right, and that's also the reason why there should be not=, with a default > implementation that does (not (= ...)). It can be expensive to establish > equality for a complex data structure, whereas inequality can be ascertained > at the first difference encountered. I must assume that nobody read that message, as there should have been loud complaints. There is obviously no difference in performance between = and not=, as the result of either one is known as soon as one can decide equality OR non-equality. I have added a plain function not= to clojure.algo.generic.comparison as a convenience, it is just the negation of generic =. The freshly migrated version of clojure.contrib.generic is now available at http://github.com/clojure/algo.generic Tested with Clojure 1.3 beta 3. Konrad. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
