I just realized what d be awesome is that the language
does not only provide boiler plate []basicType enhanced types,
but provides streamed version of them,
that d be much better.
when you do
[15Million]string.map().filter().count().
with a naive implementation over array of those intents,
you effectively end up with a copy at each stage,
which is not cool.
Instead if that d be a stream api,
that d be almost same call, with small changes to be determined,
but a much better allocation,
as each item is processed once by each function, one item at a time,
you don t need the intermediate (stupid, after all) arrays.
[15Million]string.map().filter().count().
The difference being
that some func call must become terminal, count() int
some must probably become contiguous to <something to be decided by the
user>, filter() stream
can this help to reduce over multiple goroutine?
something like ?
[15Million]string.chunks(size int, concurrent int).Parrallel(receiver
[]string{}.filter() stream).count().
count is sequential, it receives results from // filters,
receiver is a worker space (memory+work) aka what a stream ? a []string ?,
so ParrallelChunk is (input stream/[]string) stream/[]string
why not ?
On Tuesday, May 30, 2017 at 4:43:54 PM UTC+2, [email protected] wrote:
>
> I m just gonna add more examples as it come,
>
> from
> hasPrefix := func(prefix string) func(string) bool {
> return func(s string) bool { return strings.HasPrefix(s,
> prefix) }
> } // this is not cool....
>
> if fnUtils.AllTypes().Filter(hasPrefix("post")).NotEmpty() {
> ...
> }
>
> to
> hasPrefix, _ := conv(func(prefix string) func(s string) bool,
> strings.HasPrefix)
> // does this make sense given
> https://golang.org/pkg/strings/#HasPrefix ?
>
> if fnUtils.AllTypes().Filter(hasPrefix("post")).NotEmpty() {
> ...
> }
>
> On Friday, May 26, 2017 at 2:47:45 PM UTC+2, [email protected] wrote:
>>
>> oops... mistake in it.
>>
>>
>> printS, err := conv(func(s string, err error), fmt.Println) or panic(err)
>> _, err := []string{"hello}.Map(strings.
>> ToUpper).MustEach(printS) or panic(err)
>>
>> count, err := conv(func(s string) n int, fmt.Println) or panic(err)
>> n := []string{"hello}.Map(strings.ToUpper).Sum(count)
>>
>> count, err := conv(func(s string) (n int, err error), fmt.Println) or
>> panic(err)
>> n, err := []string{"hello}.Map(strings.ToUpper).MustSum(count) or
>> panic(err)
>>
>> more like this, take advantage of return type and names to do more
>> conversion.
>>
>> On Friday, May 26, 2017 at 2:45:33 PM UTC+2, [email protected] wrote:
>>>
>>> or this,
>>>
>>> printS, err := conv(func(s string, err error), fmt.Println) or panic(err)
>>> _, err := []string{"hello}.Map(strings.ToUpper).MustEach(printS) or
>>> panic(err)
>>>
>>> count, err := conv(func(n int), fmt.Println) or panic(err)
>>> n := []string{"hello}.Map(strings.ToUpper).Sum(count)
>>>
>>> count, err := conv(func(n int, err error), fmt.Println) or panic(err)
>>> n, err := []string{"hello}.Map(strings.ToUpper).MustSum(count) or
>>> panic(err)
>>>
>>> that'd be great...
>>>
>>> On Friday, May 26, 2017 at 2:25:37 PM UTC+2, [email protected] wrote:
>>>>
>>>> for the fun,
>>>>
>>>> I want to write
>>>> []string{"hello}.Map(strings.ToUpper).Each(fmt.Println)
>>>>
>>>> would not work, func param are incompatible.
>>>>
>>>> let s apply static rules to convert it,
>>>>
>>>> printS, err := conv(func(s string), fmt.Println) or panic(err)
>>>> []string{"hello}.Map(strings.ToUpper).Each(printS)
>>>>
>>>> Now it s possible.
>>>>
>>>> And if one does a fmt.MustPrintln to get ride of the error while still
>>>> handling it (recoverable)
>>>> rather than ignore it as of today,
>>>> you can write that, and handle error via recover,
>>>> or simply ignore it as in the previous ex.
>>>>
>>>> printS, err := conv(func(s string), fmt.MustPrintln) or panic(err)
>>>>
>>>> []string{"hello}.Map(strings.ToUpper).Each(printS)
>>>>
>>>>
>>>>
>>>> On Wednesday, May 24, 2017 at 9:52:27 AM UTC+2, [email protected] wrote:
>>>>>
>>>>> see the title, only for what s needed
>>>>> Slice/Splice/Each/Map/First/Last/Reverse/Sort ect ect not len, for
>>>>> reason.
>>>>> so interface system serves the userland by its definition of struct, and
>>>>> the basic slice type provided by the language is fully operational,
>>>>> without
>>>>> breaking, btw. i don t go further in evaluation, i leave that to the
>>>>> reader, just trying to work decently.
>>>>>
>>>>
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