Re: alternative to passing parameters to functions
You can also check prismatic plumbing library where they a new function definition type based on maps. link: https://github.com/Prismatic/plumbing/tree/master/src/plumbing/fnk On 02/18/2013 05:33 AM, Gunnar Völkel wrote: You can checkout clojure.options (https://github.com/guv/clojure.options/). One of its main features is documentation for options (even transitive ones in calls to other functions with options). -- -- 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: alternative to passing parameters to functions
You can checkout clojure.options (https://github.com/guv/clojure.options/). One of its main features is documentation for options (even transitive ones in calls to other functions with options). -- -- 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: alternative to passing parameters to functions
Thanks guys, I think I will go with this variant that vemv suggested and
upon further exploring I realized it can do much more (still exploring
currently):
*(defn somefn
[req1 req2 **;required params *
* {:keys [a b c d e]** ;optional params*
*:or {a 1** ;optional params with preset default values other than
the nil default*
* ; b takes nil if not specified on call*
* c 3** ; c is 3 when not specified on call*
*d 0* *; d is 0 --//--*
*; e takes nil if not specified on call*
* }
:as mapOfParamsSpecifiedOnCall }]
(println req1 req2 mapOfParamsSpecifiedOnCall a b c d e)
)*
*=* *(somefn 9 10 :b 2 :d 4)*
9 10 {:b 2, :d 4} 1 2 3 4 nil
nil
*=* *(somefn)*
ArityException Wrong number of args (0) passed to: funxions$somefn
clojure.lang.AFn.throwArity (AFn.java:437)
*=* *(somefn 9 10)*
9 10 nil 1 nil 3 0 nil
nil
=* (somefn 9 10 :x 123)*
9 10 {:x 123} 1 nil 3 0 nil
nil
= *(somefn 9 10 123)*
IllegalArgumentException No value supplied for key: 123
clojure.lang.PersistentHashMap.create (PersistentHashMap.java:77)
=* (somefn 9 10 123 45)*
9 10 {123 45} 1 nil 3 0 nil
nil
On Sun, Feb 17, 2013 at 10:12 PM, vemv v...@vemv.net wrote:
fn's keyword arguments feature provide unrolled, optional key-value args:
(defn foo [ {:keys [a b c]}]
[a b c])
(foo :c 4) ;; [nil nil 4]
On Sunday, February 17, 2013 10:06:13 PM UTC+1, AtKaaZ wrote:
Was there a library or some other way to pass ie. maps to functions
so that the order of the params isn't predefined, just in case I want to
skip some passing parameters without actually having to pass some value for
them, I could just refer to which params I'm passing by identifying them
with a :key ?
It's probably not hard at all to implement, but if there's a lib already,
it would do a better job that I could.
--
Please correct me if I'm wrong or incomplete,
even if you think I'll subconsciously hate it.
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even if you think I'll subconsciously hate it.
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alternative to passing parameters to functions
Was there a library or some other way to pass ie. maps to functions so that the order of the params isn't predefined, just in case I want to skip some passing parameters without actually having to pass some value for them, I could just refer to which params I'm passing by identifying them with a :key ? It's probably not hard at all to implement, but if there's a lib already, it would do a better job that I could. -- Please correct me if I'm wrong or incomplete, even if you think I'll subconsciously hate it. -- -- 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: alternative to passing parameters to functions
fn's keyword arguments feature provide unrolled, optional key-value args:
(defn foo [ {:keys [a b c]}]
[a b c])
(foo :c 4) ;; [nil nil 4]
On Sunday, February 17, 2013 10:06:13 PM UTC+1, AtKaaZ wrote:
Was there a library or some other way to pass ie. maps to functions
so that the order of the params isn't predefined, just in case I want to
skip some passing parameters without actually having to pass some value for
them, I could just refer to which params I'm passing by identifying them
with a :key ?
It's probably not hard at all to implement, but if there's a lib already,
it would do a better job that I could.
--
Please correct me if I'm wrong or incomplete,
even if you think I'll subconsciously hate it.
--
--
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