Re: Critiques of my-flatten which uses CPS
It's worth understanding how to go back and forth between accumulator-style and a lazy construction. You can convert the above non-lazy accumulator version into a similar version that is lazy but has no risk of stack overflow in the realization of that lazy flattened list: (defn my-flatten [xs] (if (empty? xs) () (let [x (first xs), ys (rest xs)] (if (sequential? x) (if (seq x) (recur (cons (first x) (cons (rest x) ys))) (recur ys)) (lazy-seq (cons x (my-flatten ys))) Basically, you just get rid of the accumulator, and in the place where you would have conj'd in the next atomic element, you just build the lazy sequence. -- 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/d/optout.
Re: Re-upload corrupted Rich Hickey video?
Download the file via some youtube downloader. The downloaded file is not corrupted. On Tue, Jul 15, 2014 at 4:46 PM, Herwig Hochleitner hhochleit...@gmail.com wrote: 2014-07-16 0:18 GMT+02:00 gvim gvi...@gmail.com: Clojure for Lisp Programmers Part 1 by Rich Hickey: http://www.youtube.com/watch?v=cPNkH-7PRTk seems to have become corrupted. Can anyone re-upload the original? I can confirm that it's cut off at 6:35 in all resolutions. I hope ClojureTV still has the original. -- 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/d/optout. -- 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/d/optout.
[ANN] Brute 0.3.0 - A lightweight Entity Component System library for writing games
Brute is a simple and lightweight Entity Component System library for writing games with Clojure and now also **ClojureScript**. Big thanks to Martin Janiczek https://github.com/Janiczek for porting Brute over to CLJX and making everything work. There are also some new functions - including: - An implementation of (update-function ... ) to make functionally changing component state much easier - Ability to add throttled system functions that only fire every n milliseconds. Full blog post on changes: http://www.compoundtheory.com/brute-0-3-0-now-supporting-clojurescript/ Project can be found on Github at: https://github.com/markmandel/brute As always feedback and pull requests are welcome. -- E: mark.man...@gmail.com T: http://www.twitter.com/neurotic W: www.compoundtheory.com 2 Devs from Down Under Podcast http://www.2ddu.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 --- 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/d/optout.
[ANN] tools.namespace 0.2.5
*tools.namespace:* finding, parsing, and reloading Clojure namespaces in correct dependency order https://github.com/clojure/tools.namespace *Release 0.2.5* Leiningen dependency: [org.clojure/tools.namespace 0.2.5] This release contains bugfixes, performance enhancements, and minor feature enhancements: * New `clojure.tools.namespace.repl/clear` empties the state of the REPL dependency tracker. This can help repair the dependency tracker after a failed load or a circular dependency error. * Enhancement [TNS-19]: `deps-from-ns-decl` should return an empty set instead of nil. This may be a breaking change for some but is consistent with the original docstring. * Enhancement [TNS-18]: Compute transitive dependencies in linear time. Thanks to Andy Fingerhut. * Enhancement [TNS-17]: The `ns` form doesn't need to be the first top-level form in a file. * Fix [TNS-16]: Don't depend on specific hash ordering in tests. Exposed by new hash functions in Clojure 1.6.0. * Fix [TNS-15]: Handle spaces in classpath directories (old `clojure.tools.namespace`) * Fix [TNS-12]: Duplicate definition of `jar-file?` tools.namespace is a Clojure contrib project. http://dev.clojure.org/display/doc/Clojure+Contrib -- 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/d/optout.
[ANN] monads 0.2.2
After a surprisingly long time I'm releasing a new version of my monads library, focussed on expressivity and correctness: https://github.com/bwo/monads Leiningen: [bwo/monads 0.2.2] Improvements from 0.1.0 include: - change from maps to protocols for monad implementations, which has increased flexibility and speed (this library is once again a little faster than morph) - all monad implementations interoperate with algo.generic.functor - monad transformers automatically lift operations from inner monads, if they're supported - a combined reader/writer/state monad (and transformer) was introduced, and the (faulty) list-t monad transformer was removed - improvements to call/cc, shift, and reset for the continuation monad - an applicative functor protocol was introduced, and implementations provided for several existing types and all monad implementations. Also, the `mdo` syntax macro was abstracted out and can now accept an arbitrary user-provided function for doing monadic binds, which should mean that it can be used with other libraries, though I haven't actually tested this. -- Ben Wolfson Human kind has used its intelligence to vary the flavour of drinks, which may be sweet, aromatic, fermented or spirit-based. ... Family and social life also offer numerous other occasions to consume drinks for pleasure. [Larousse, Drink entry] -- 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/d/optout.
Re: [ANN] tools.namespace 0.2.5
Fantastic! Thanks Stuart! Ambrose On Wed, Jul 16, 2014 at 9:10 PM, Stuart Sierra m...@stuartsierra.com wrote: *tools.namespace:* finding, parsing, and reloading Clojure namespaces in correct dependency order https://github.com/clojure/tools.namespace *Release 0.2.5* Leiningen dependency: [org.clojure/tools.namespace 0.2.5] This release contains bugfixes, performance enhancements, and minor feature enhancements: * New `clojure.tools.namespace.repl/clear` empties the state of the REPL dependency tracker. This can help repair the dependency tracker after a failed load or a circular dependency error. * Enhancement [TNS-19]: `deps-from-ns-decl` should return an empty set instead of nil. This may be a breaking change for some but is consistent with the original docstring. * Enhancement [TNS-18]: Compute transitive dependencies in linear time. Thanks to Andy Fingerhut. * Enhancement [TNS-17]: The `ns` form doesn't need to be the first top-level form in a file. * Fix [TNS-16]: Don't depend on specific hash ordering in tests. Exposed by new hash functions in Clojure 1.6.0. * Fix [TNS-15]: Handle spaces in classpath directories (old `clojure.tools.namespace`) * Fix [TNS-12]: Duplicate definition of `jar-file?` tools.namespace is a Clojure contrib project. http://dev.clojure.org/display/doc/Clojure+Contrib -- 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/d/optout. -- 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/d/optout.
handling only a part of a hash-map
Hi,
I'm just beginning with clojure.
;(let [conn (mg/connect)
; db (mg/get-db conn throughput)
; coll clojure_throughput_src]
;;; with a query, as Clojure maps
; ( doseq [item (mc/find-maps db coll {})]
;(println
; (get_timeslot
;(get_dt
; ( get item :ts))
In a mongodb collection I have a timestamp and an id. I'll transform the
timestamp which works fine.
But I'm struggle with getting the id , too - let it untransformed and
going on with this hash-map result.
Thanks in advance
Christian
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NPE on ((print))
Hi! user= ((print)) NullPointerException user/eval1 (NO_SOURCE_FILE:1) Is that behaviour indended? -- 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/d/optout.
Re: NPE on ((print))
Hi, Parenthesis are for function invocations in Clojure. ((print)) calls the result of print (which is null) aka. nil, which results in a NPE. Thanks, Ambrose On Thu, Jul 17, 2014 at 1:20 AM, vag.vag...@gmail.com wrote: Hi! user= ((print)) NullPointerException user/eval1 (NO_SOURCE_FILE:1) Is that behaviour indended? -- 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/d/optout. -- 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/d/optout.
Re: handling only a part of a hash-map
select-keys makes it easy to extract a portion of a map:
(select-keys {:id 1 :ts 2 :ignore 3} [:id :ts])
= {:ts 2, :id 1}
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[Call for Papers] 2014 Scheme and Functional Programming Workshop
[Apologies for duplication from cross-postings.] Important Note: This year's Scheme and Functional Programming Workshop is co-located with Clojure/conj. Clojure-related papers are encouraged, as are first-time and non-academic authors. -- JBH DEADLINE: 5 September 2014, (23:59 UTC-12) WEBSITE: http://homes.soic.indiana.edu/jhemann/scheme-14/ LOCATION: Washington, DC (co-located with Clojure/conj) DATE: 19 November 2014 The 2014 Scheme and Functional Programming Workshop is calling for submissions. Submissions related to Scheme and functional programming are welcome and encouraged. Topics of interest include but are not limited to: - Program-development environments, debugging, testing - Implementation (interpreters, compilers, tools, benchmarks, etc) - Syntax, macros, and hygiene - Distributed computing, concurrency, parallelism - Interoperability with other languages, FFIs - Continuations, modules, object systems, types - Theory, formal semantics, correctness - History, evolution and standardization of Scheme - Applications, experience and industrial uses of Scheme - Education - Scheme pearls (elegant, instructive uses of Scheme) We also welcome papers related to dynamic or multiparadigmatic languages and programming techniques. Full papers are due 5 September 2014. Authors will be notified by 10 October 2014. Camera-ready versions are due 24 Oct 2014. All deadlines are (23:59 UTC-12), Anywhere on Earth. For more information, please see: http://homes.soic.indiana.edu/jhemann/scheme-14/ Best, Jason Hemann, Organizer, Scheme 14 -- 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/d/optout.
casting error
Trying to eliminate a reflection warning, I put a type hint on a function, like (defn foo ^PStatement [] ...) which compiles without the reflection warnings, but at run time I get ClassCastException java.lang.ClassCastException: cavm.h2.PStatement cannot be cast to cavm.h2.PStatement What does this mean? PStatement is a defrecord type. -- 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/d/optout.
TBNL: power tool for Android system hacking tool in Clojure
Hi All, I want to share with you an Android system hacking tool that I have been working on the past few weeks that is written entirely in Clojure github repo: https://github.com/pw4ever/tbnl brief video tour: http://youtu.be/Hvzl_RK5JH0 http://youtu.be/Hvzl_RK5JH0 Two features highlighted in the video are: * *root (in contrast to app domain) Clojure REPL on Android*. The video tour shows briefly some useful things that we can do with it. * Visualizing Activity activation of a live Android session. It is a quite extensible framework that delegates functionality implementation to plugins. The code is quite modular and straightforward to extend. If you have time, give it a try. I'd love hear from you how it can be improved. Wei. -- 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/d/optout.
Re: casting error
Apparently this is due to a class loader problem. I moved it into a different file to try to avoid the problem. However I'm now finding that nothing referencing foo will compile, throwing this error: CompilerException java.lang.IllegalArgumentException: Unable to resolve classname: PStatement No idea what to do with this. Is it not possible to type hint methods returning records? On Wednesday, July 16, 2014 4:21:22 PM UTC-7, Brian Craft wrote: Trying to eliminate a reflection warning, I put a type hint on a function, like (defn foo ^PStatement [] ...) which compiles without the reflection warnings, but at run time I get ClassCastException java.lang.ClassCastException: cavm.h2.PStatement cannot be cast to cavm.h2.PStatement What does this mean? PStatement is a defrecord type. -- 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/d/optout.
Re: casting error
Try fully qualifying the class name in the return type hint. Might be the same symptom as in this ticket: http://dev.clojure.org/jira/browse/CLJ-1232 Andy On Wed, Jul 16, 2014 at 7:18 PM, Brian Craft craft.br...@gmail.com wrote: Apparently this is due to a class loader problem. I moved it into a different file to try to avoid the problem. However I'm now finding that nothing referencing foo will compile, throwing this error: CompilerException java.lang.IllegalArgumentException: Unable to resolve classname: PStatement No idea what to do with this. Is it not possible to type hint methods returning records? On Wednesday, July 16, 2014 4:21:22 PM UTC-7, Brian Craft wrote: Trying to eliminate a reflection warning, I put a type hint on a function, like (defn foo ^PStatement [] ...) which compiles without the reflection warnings, but at run time I get ClassCastException java.lang.ClassCastException: cavm.h2.PStatement cannot be cast to cavm.h2.PStatement What does this mean? PStatement is a defrecord type. -- 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/d/optout. -- 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/d/optout.
Re: Critiques of my-flatten which uses CPS
Interesting - thank you! Good to know about into as a way to achieve a non-lazy concat - in conjunction with a vector. I like your accumulator version - morphing the structure of the input as you go to achieve the desired result. I've come up with another version, that passes through both a result so far accumulator and a still to be computed stack. It is very much non-lazy, but that's okay in some applications (a performance feature even!). Here it is... (defn my-accandstackbased-flatten [xs] (letfn [(flatten-accandstack [xs accvec stackvec] (if (empty? xs) (if (empty? stackvec) accvec (recur (peek stackvec) accvec (pop stackvec))) (let [x (first xs), ys (next xs)] (if (sequential? x) (recur x accvec (conj stackvec ys)) (recur ys (conj accvec x) stackvec)] (seq (flatten-accandstack xs [] [] This has nice recur behaviour and doesn't mess too much with the structure of the input nested lists. In the case of flatten, retaining structure is not important (as you nicely illustrated), but there are generalizations of this kind of function where retaining structure becomes more important. Now here's the thing... In the above, my stackvec is sort of like a continuation. It contains a stack of computation to be performed later on. That sounds very much like a continuation to me (though I am still in the process of getting my head around this stuff). So I've thought, surely I could write an acc and cps version of my-flatten? Here is what I came up with... (defn my-accandcpsbased-flatten [xs] (letfn [(flatten-accandcps [xs accvec k] (if (empty? xs) (k accvec) (let [x (first xs), ys (next xs)] (if (sequential? x) (recur x accvec (fn [v] (flatten-accandcps ys [] (fn [w] (k (into v w)) (recur ys (conj accvec x) k)] (seq (flatten-accandcps xs [] identity And I could do the trick you showed me with thunks and a trampoline, if I wanted to make it completely stack-avoiding. What does this show? I'm not sure. Presumably the acc and stack version is the most efficient as it uses recur everywhere? The structure of the continuation I pass in with the acc and cps version is very similar in complexity to the continuation I passed as part of my original cps implementation. So where's the gain? I guess the inclusion of an accvec means that continuations are generated less frequently so that the overall size and execution time of continuations is smaller? And it is an improvement over my earlier aps version that used only an acc vector - because this version has everything in tail-call position and is amenable to trampolining. Is this attempt at analysis reasonable? Is there anything else worth observing etc? Presumably I could make the acc and cps above more lazy using concat, cons and lazy-seq. I'd need to think about how easy/hard it would be to make my acc and stack version as lazy. Thanks again for your helpful comments and examples. -- 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/d/optout.
Re: casting error
That does, in fact, fix the compile issue. Thanks! The cast error, however, persists. It's something to do with reloading the namespace with the defrecord. Once it happens, it takes a lein clean to clear. After that it works w/o error until the namespace is reloaded. It's something to do with referencing the defrecord from another namespace, or aot compiling. So far I haven't found a solution. It appears that an aot compiled file can't reference a function with a type hint for a defrecord if the namespace with that defrecord is then dynamically reloaded. Or something. It all looks exceedingly complex at this point. On Wednesday, July 16, 2014 8:36:35 PM UTC-7, Andy Fingerhut wrote: Try fully qualifying the class name in the return type hint. Might be the same symptom as in this ticket: http://dev.clojure.org/jira/browse/CLJ-1232 Andy On Wed, Jul 16, 2014 at 7:18 PM, Brian Craft craft...@gmail.com javascript: wrote: Apparently this is due to a class loader problem. I moved it into a different file to try to avoid the problem. However I'm now finding that nothing referencing foo will compile, throwing this error: CompilerException java.lang.IllegalArgumentException: Unable to resolve classname: PStatement No idea what to do with this. Is it not possible to type hint methods returning records? On Wednesday, July 16, 2014 4:21:22 PM UTC-7, Brian Craft wrote: Trying to eliminate a reflection warning, I put a type hint on a function, like (defn foo ^PStatement [] ...) which compiles without the reflection warnings, but at run time I get ClassCastException java.lang.ClassCastException: cavm.h2.PStatement cannot be cast to cavm.h2.PStatement What does this mean? PStatement is a defrecord type. -- 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/d/optout. -- 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/d/optout.
Re: casting error
I have a wonky work-around. The file that is aot compiled depends on the file with the defrecord reference. I eliminated the direct dependency and exported a function that does an alter-root-var. So the provider injects the required value into the dependent. On Wednesday, July 16, 2014 9:33:52 PM UTC-7, Brian Craft wrote: That does, in fact, fix the compile issue. Thanks! The cast error, however, persists. It's something to do with reloading the namespace with the defrecord. Once it happens, it takes a lein clean to clear. After that it works w/o error until the namespace is reloaded. It's something to do with referencing the defrecord from another namespace, or aot compiling. So far I haven't found a solution. It appears that an aot compiled file can't reference a function with a type hint for a defrecord if the namespace with that defrecord is then dynamically reloaded. Or something. It all looks exceedingly complex at this point. On Wednesday, July 16, 2014 8:36:35 PM UTC-7, Andy Fingerhut wrote: Try fully qualifying the class name in the return type hint. Might be the same symptom as in this ticket: http://dev.clojure.org/jira/browse/CLJ-1232 Andy On Wed, Jul 16, 2014 at 7:18 PM, Brian Craft craft...@gmail.com wrote: Apparently this is due to a class loader problem. I moved it into a different file to try to avoid the problem. However I'm now finding that nothing referencing foo will compile, throwing this error: CompilerException java.lang.IllegalArgumentException: Unable to resolve classname: PStatement No idea what to do with this. Is it not possible to type hint methods returning records? On Wednesday, July 16, 2014 4:21:22 PM UTC-7, Brian Craft wrote: Trying to eliminate a reflection warning, I put a type hint on a function, like (defn foo ^PStatement [] ...) which compiles without the reflection warnings, but at run time I get ClassCastException java.lang.ClassCastException: cavm.h2.PStatement cannot be cast to cavm.h2.PStatement What does this mean? PStatement is a defrecord type. -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+u...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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/d/optout.
