By wasting my time I mean if it is clear goog.math.integer is a bad idea it
would be great if someone who knows would help a brother out and tell me.
:-)
I we are slowly moving a large google closure codebase into clojurescript
so I have significantly more experience on the closure side.
goog.math.integer and goog.math.long apear to have about the same
performance characteristics when one of our programmers tested a year and a
half ago.
my naive thought make the bigint cast and use the op' so people realize
they are taking the performance hit.
(ns myjs
(:require [goog.math.Integer :as gInteger]))
(defn bigint
"Coerce to BigInt"
[x] (cond
(= (type x) goog.math.Integer) x
(number? x) (Integer/fromInt x)
(string? x) (Integer/fromString x);string may be a bad idea but
it at least keeps javascript numbers from loosing information
))
Then we could make an arbitrary precision version of all the number
related functions
(defn +'
"Returns the sum of nums. (+) returns 0."
([] 0)
([x] (bigint x))
([x y] (.add (bigint x) (bigint y)))
([x y & more] (reduce +' (.add (bigint x) (bigint y)) more)))
I am not that familiar with clojurescript yet,but could probably do an
extend type on goog.math.Integer
to support iequiv with js/numbers?
On Wed, Aug 15, 2012 at 1:15 PM, David Nolen <dnolen.li...@gmail.com> wrote:
> On Tuesday, August 14, 2012, dspiteself wrote:
>
>> I have extensive google closure experience, but little low level
>> clojurescript experience.
>> Could we use the clojure library's Integer or long type. It will likely
>> not be as fast but when you need it you need it.
>>
>> http://closure-library.googlecode.com/svn/docs/closure_goog_math_integer.js.html
>>
>> http://closure-library.googlecode.com/svn/docs/closure_goog_math_long.js.html
>> If you can tell me if I would be wasting my time or not I will start
>> working on a comprehensive design.
>>
>
> What do you mean by "wasting your time"?
>
> David
>
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