oo, what do we have here?
=> (defmacro get-lexical-asvar [q]
(let [
oem (zipmap (keys &env) (vals &env))
zz (.var (.init (second (find oem q))))
]
`~zz
)
)
#'runtime.q/get-lexical-asvar
=> (let [x assoc
y x]
(str (get-lexical-asvar x))
)
"#'clojure.core/assoc"
but it doesn't (yeT) work for y
On Sun, Mar 3, 2013 at 1:27 PM, AtKaaZ <atk...@gmail.com> wrote:
> ok you're right, it's impossible to get the var since those x and y are
> already resolved to the function, and multiple vars could point to the same
> function anyway.
>
> => (let [x assoc
> y x]
> (get-lexical-env)
> )
> {x #<core$assoc clojure.core$assoc@35fcd90c>, y #<core$assoc
> clojure.core$assoc@35fcd90c>}
>
> for consistency, ignore the following:
> ;the following is inspired from
> http://blog.jayfields.com/2011/02/clojure-and.html
> (defmacro get-lexical-env []
> "
> => (let [a 1 b (+ 1 2)]
> (let [c (do \"a\" \"b\")]
> (q/get-lexical-env)
> )
> )
> {a 1, b 3, c \"b\"}
> "
> (let [envkeys (keys &env)]
> `(zipmap (quote ~envkeys) (list ~@envkeys))
> )
> )
>
> (defmacro show-lexical-env []
> `(clojure.pprint/pprint (get-lexical-env))
> )
>
>
> On Sun, Mar 3, 2013 at 1:05 PM, AtKaaZ <atk...@gmail.com> wrote:
>
>> that's true but I thought you meant in general
>> basically, I'm looking for a way to get the var... ie.
>> => (let [x assoc
>> y x]
>> *(var y)*
>> )
>> CompilerException java.lang.RuntimeException: Unable to resolve var: y in
>> this context, compiling:(NO_SOURCE_PATH:3:3)
>>
>> => (let [x assoc
>> y x]
>> y
>> )
>> #<core$assoc clojure.core$assoc@35fcd90c>
>> => (var assoc)
>> #'clojure.core/assoc
>>
>>
>> something that can replace that (var y) with something that actually gets
>> the var that y resolves to.
>>
>>
>>
>> On Sun, Mar 3, 2013 at 12:58 PM, Dave Sann <daves...@gmail.com> wrote:
>>
>>> I think, that will only work if you do it directly.
>>>
>>> It will not work in the example I gave.
>>>
>>> Dave
>>>
>>>
>>> On Sunday, 3 March 2013 22:43:14 UTC+11, AtKaaZ wrote:
>>>>
>>>>
>>>>
>>>>
>>>> On Sun, Mar 3, 2013 at 12:21 PM, Dave Sann <dave...@gmail.com> wrote:
>>>>
>>>>> This may be a question for clojure dev
>>>>>
>>>>> I find myself wanting to be able to print data-structures containing
>>>>> resolvable functions
>>>>>
>>>>> e.g.
>>>>>
>>>>> (let [x assoc] (str [x :a :b]))
>>>>>
>>>>> would be:
>>>>>
>>>>> "[#fn clojure.core/assoc :a :b]"
>>>>>
>>>>> or similar, rather than the current:
>>>>>
>>>>> "[#<core$assoc clojure.core$assoc@6d289e48> :a :b]"
>>>>>
>>>>> which is unreadable.
>>>>>
>>>>> I can read this tag very easily, using the data-reader
>>>>>
>>>>> {fn resolve} or,
>>>>>
>>>>> (set! *data-readers* {'fn resolve})
>>>>>
>>>>>
>>>>>
>>>>> But I don't know of any way to get the name and namespace of a
>>>>> function to write it out.
>>>>>
>>>> Did you mean this?
>>>> => (meta #'assoc)
>>>> {:ns #<Namespace clojure.core>, :name assoc, :arglists ([map key val]
>>>> [map key val & kvs]), :column 1, :added "1.0", :static true, :doc
>>>> "assoc[iate]. When applied to a map, returns a new map of the\n same
>>>> (hashed/sorted) type, that contains the mapping of key(s) to\n val(s).
>>>> When applied to a vector, returns a new vector that\n contains val at
>>>> index. Note - index must be <= (count vector).", :line 177, :file
>>>> "clojure/core.clj"}
>>>>
>>>>
>>>>> I think this is not possible at the moment.
>>>>>
>>>>>
>>>>> Anyone?
>>>>>
>>>>> Thanks
>>>>>
>>>>> Dave
>>>>>
>>>>> --
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>>>>> .
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Please correct me if I'm wrong or incomplete,
>>>> even if you think I'll subconsciously hate it.
>>>>
>>>> --
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>>>
>>
>>
>>
>> --
>> Please correct me if I'm wrong or incomplete,
>> even if you think I'll subconsciously hate it.
>>
>>
>
>
> --
> Please correct me if I'm wrong or incomplete,
> even if you think I'll subconsciously hate it.
>
>
--
Please correct me if I'm wrong or incomplete,
even if you think I'll subconsciously hate it.
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