Re: hooks on namespace required/loaded
As a point of clarification, read-string is not a hard requirement. Just getting the name of the namespace (and walking through the symbols + calling source on each of them to get the source code is perfeclty fine). Basically, I want to hook a function that * gets called every time a namespace is loaded/required/reloaded * gets passed the namespace Thanks! On Tue, Feb 18, 2014 at 8:32 PM, t x txrev...@gmail.com wrote: Hi, Although solutions not involving cljx are perfectly fine, I'm using cljx -- so solutions that involves hooking into cljx are perfectly fine too. I have my own poor-man's lint / type checker (with different objectives from core.typed). I want a certain function (call it CHECKER) to be called every time a namespace has been required / loaded / reloaded Every time I require/load/reload a namespace, I want the following to happen: (CHECKER ... source code of the namesapce) i.e. something like (CHECKER (read-string namesapce-just-loaded.clj)) Then, if CHECKER throws an exception, it should be a compile error. If CHECKER prints stuff out, it should go into the lein repl stdout, and if CHECKER doesn't do anything, it's assumed that the namespace passed the check. Is there a minimal example somewhere of how this works? (i.e. something as stupid as: this example calls a function, which just prints out the name of all functions defined would be extremely helpful). Thanks! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: hooks on namespace required/loaded
With apologies for spamming: Solutions that involves installing a new lein plugin is fine too. I'm willing to completely re-organize my workflow in order to * have some other piece of Clojure code gets called / do verification whenever a clojure namespace is required/loaded/reloaded / Done spamming. On Tue, Feb 18, 2014 at 8:38 PM, t x txrev...@gmail.com wrote: As a point of clarification, read-string is not a hard requirement. Just getting the name of the namespace (and walking through the symbols + calling source on each of them to get the source code is perfeclty fine). Basically, I want to hook a function that * gets called every time a namespace is loaded/required/reloaded * gets passed the namespace Thanks! On Tue, Feb 18, 2014 at 8:32 PM, t x txrev...@gmail.com wrote: Hi, Although solutions not involving cljx are perfectly fine, I'm using cljx -- so solutions that involves hooking into cljx are perfectly fine too. I have my own poor-man's lint / type checker (with different objectives from core.typed). I want a certain function (call it CHECKER) to be called every time a namespace has been required / loaded / reloaded Every time I require/load/reload a namespace, I want the following to happen: (CHECKER ... source code of the namesapce) i.e. something like (CHECKER (read-string namesapce-just-loaded.clj)) Then, if CHECKER throws an exception, it should be a compile error. If CHECKER prints stuff out, it should go into the lein repl stdout, and if CHECKER doesn't do anything, it's assumed that the namespace passed the check. Is there a minimal example somewhere of how this works? (i.e. something as stupid as: this example calls a function, which just prints out the name of all functions defined would be extremely helpful). Thanks! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: hooks on namespace required/loaded
I know we talked a bit about this in IRC but this is a hack you could use to slurp the file's contents into a string in that file: (ns foo.core (:refer-clojure :exclude [slurp])) (defmacro slurp [file] (clojure.core/slurp file)) ;; In CLJS (ns bar.core (:require [foo.core :include-macros true :refer [slurp]])) ;; This is possible because we can evaluate *Clojure* code at compile time. (def project-clj (slurp project.clj)) From there you could then use read-string, or what have you, and examine the contents. Here's a link to the gist for reference: https://gist.github.com/noprompt/9086232. On Tuesday, February 18, 2014 8:32:05 PM UTC-8, t x wrote: Hi, Although solutions not involving cljx are perfectly fine, I'm using cljx -- so solutions that involves hooking into cljx are perfectly fine too. I have my own poor-man's lint / type checker (with different objectives from core.typed). I want a certain function (call it CHECKER) to be called every time a namespace has been required / loaded / reloaded Every time I require/load/reload a namespace, I want the following to happen: (CHECKER ... source code of the namesapce) i.e. something like (CHECKER (read-string namesapce-just-loaded.clj)) Then, if CHECKER throws an exception, it should be a compile error. If CHECKER prints stuff out, it should go into the lein repl stdout, and if CHECKER doesn't do anything, it's assumed that the namespace passed the check. Is there a minimal example somewhere of how this works? (i.e. something as stupid as: this example calls a function, which just prints out the name of all functions defined would be extremely helpful). Thanks! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: hooks on namespace required/loaded
I am not sure about ClojureScript, but in Clojure/Java you can use alter-var-root to change the definition of load-libs, which is called by both require and use. You can use alter-var-root to change the definition of any function you want in clojure.core or any other namespace. I wouldn't recommend going crazy with it, but it should be able to do the job, at least after the alter-var-root takes effect. Out of curiosity, what kind of linting does your function do? Andy On Tue, Feb 18, 2014 at 8:41 PM, t x txrev...@gmail.com wrote: With apologies for spamming: Solutions that involves installing a new lein plugin is fine too. I'm willing to completely re-organize my workflow in order to * have some other piece of Clojure code gets called / do verification whenever a clojure namespace is required/loaded/reloaded / Done spamming. On Tue, Feb 18, 2014 at 8:38 PM, t x txrev...@gmail.com wrote: As a point of clarification, read-string is not a hard requirement. Just getting the name of the namespace (and walking through the symbols + calling source on each of them to get the source code is perfeclty fine). Basically, I want to hook a function that * gets called every time a namespace is loaded/required/reloaded * gets passed the namespace Thanks! On Tue, Feb 18, 2014 at 8:32 PM, t x txrev...@gmail.com wrote: Hi, Although solutions not involving cljx are perfectly fine, I'm using cljx -- so solutions that involves hooking into cljx are perfectly fine too. I have my own poor-man's lint / type checker (with different objectives from core.typed). I want a certain function (call it CHECKER) to be called every time a namespace has been required / loaded / reloaded Every time I require/load/reload a namespace, I want the following to happen: (CHECKER ... source code of the namesapce) i.e. something like (CHECKER (read-string namesapce-just-loaded.clj)) Then, if CHECKER throws an exception, it should be a compile error. If CHECKER prints stuff out, it should go into the lein repl stdout, and if CHECKER doesn't do anything, it's assumed that the namespace passed the check. Is there a minimal example somewhere of how this works? (i.e. something as stupid as: this example calls a function, which just prints out the name of all functions defined would be extremely helpful). Thanks! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups Clojure group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: hooks on namespace required/loaded
@Joel: While on IRC, I completely misunderstood you. Now, after looking at it again, it makes sense. This is very cool -- because making it a macro forces it to be evaluated at compile time, when the source is available. Very nice. :-) @Andy Thanks! I will look into load-libs. The following is a bit vague-ish not on purpose, but because part of it works, part of it is still being hacked together. ## stuff I have: This is how my current pattern matching / object system looks like: https://gist.github.com/txrev319/9086538 In a very hackish and theoretically unsound way, each hash-map is an object and the :tag field represents the type of the object. ## stuff that are vague because I'm still hacking them together / thinking about them ### missing feature 1 now, I want to be able to say things like: :animal = [:cat :dog :mouse] then, if I do: (hmatch obj :animal :dog ... :cat ... ) I want it to give me an error of: hey, you're not matching against :mouse -- and I want this to happen at COMPILE time, not at run time ### missing feature 2 using standard Hindley-Milner, and using the :tag field as the type, I want to be able to tag a function as having a certain type, and have it verified at compile time -- this is purely optional type checking a common pattern I run into is: (async/go (loop [msg (! some-chan)] (hmatch ... [:dog ... ] (call-other-function msg) ...))) now, when I pull the msg off the channel, I have no idea what type it is -- and that is fine. However, I'd prefer to verify, at compile time, that call-other-function has type :dog - :something ### in summary, I'm basically hacking together poor-man's pattern matching (done) and type checking (still need more hacking). The idea is: * I want a dynamically typed langauge * I want to be able to say: for this subset of functions, they have type signatures, and we can catch errors statically (-- and these choices are completely adhoc, based on what errors I waste time catching) On Tue, Feb 18, 2014 at 9:15 PM, Andy Fingerhut andy.finger...@gmail.com wrote: I am not sure about ClojureScript, but in Clojure/Java you can use alter-var-root to change the definition of load-libs, which is called by both require and use. You can use alter-var-root to change the definition of any function you want in clojure.core or any other namespace. I wouldn't recommend going crazy with it, but it should be able to do the job, at least after the alter-var-root takes effect. Out of curiosity, what kind of linting does your function do? Andy On Tue, Feb 18, 2014 at 8:41 PM, t x txrev...@gmail.com wrote: With apologies for spamming: Solutions that involves installing a new lein plugin is fine too. I'm willing to completely re-organize my workflow in order to * have some other piece of Clojure code gets called / do verification whenever a clojure namespace is required/loaded/reloaded / Done spamming. On Tue, Feb 18, 2014 at 8:38 PM, t x txrev...@gmail.com wrote: As a point of clarification, read-string is not a hard requirement. Just getting the name of the namespace (and walking through the symbols + calling source on each of them to get the source code is perfeclty fine). Basically, I want to hook a function that * gets called every time a namespace is loaded/required/reloaded * gets passed the namespace Thanks! On Tue, Feb 18, 2014 at 8:32 PM, t x txrev...@gmail.com wrote: Hi, Although solutions not involving cljx are perfectly fine, I'm using cljx -- so solutions that involves hooking into cljx are perfectly fine too. I have my own poor-man's lint / type checker (with different objectives from core.typed). I want a certain function (call it CHECKER) to be called every time a namespace has been required / loaded / reloaded Every time I require/load/reload a namespace, I want the following to happen: (CHECKER ... source code of the namesapce) i.e. something like (CHECKER (read-string namesapce-just-loaded.clj)) Then, if CHECKER throws an exception, it should be a compile error. If CHECKER prints stuff out, it should go into the lein repl stdout, and if CHECKER doesn't do anything, it's assumed that the namespace passed the check. Is there a minimal example somewhere of how this works? (i.e. something as stupid as: this example calls a function, which just prints out the name of all functions defined would be extremely helpful). Thanks! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message
