Hello, John!
Great!
I wish that was mentioned in { $link tuple-constructors }.
I now see there is >tuple, which could be equally useful.
Thank you, John!
23.09.2015, 18:29, "John Benediktsson" <mrj...@gmail.com>:
> You can use slots>tuple.
>
> TUPLE: em id name path ;
> C: <em> em
>
> : make-em-all ( -- seq )
> {
> { 1 "x" "path" }
> { 2 "y" "math" }
> { 3 "z" "bath" }
> } [ em slots>tuple ] map ;
>
> IN: scratchpad make-em-all .
> {
> T{ em { id 1 } { name "x" } { path "path" } }
> T{ em { id 2 } { name "y" } { path "math" } }
> T{ em { id 3 } { name "z" } { path "bath" } }
> }
>
> On Wed, Sep 23, 2015 at 8:25 AM, Alexander Ilin <ajs...@yandex.ru> wrote:
>> Hello!
>>
>> I'd like to return a sequence of tuples. How do I approach this?
>> Here's what I tried (and failed) so far:
>>
>> TUPLE: em id name path ;
>> C: <em> em
>>
>> : make-em-all ( -- seq )
>> {
>> { 1 "x" "path" }
>> { 2 "y" "math" }
>> { 3 "z" "bath" }
>> } [ <em> ] map ;
>>
>> The problem here was that <em> expects three items on stack, but receives
>> a sigle sequence object with three items inside.
>> I tried to find a way to dump sequence onto the stack, but the following
>> code failed to even compile due to stack effect reasons:
>>
>> ...
>> } [ [ dup ] each <em> ] map ;
>>
>> Any advice? Basically, I wanted to declaratively setup a bunch of objects
>> in a sort of init-word, put them onto stack as a sequence, and deal with
>> them interactively afterwards, possibly saving to an Sqlite DB for future
>> use.
>>
>> ---=====---
>> Александр
>>
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> ,
>
> ------------------------------------------------------------------------------
> Monitor Your Dynamic Infrastructure at Any Scale With Datadog!
> Get real-time metrics from all of your servers, apps and tools
> in one place.
> SourceForge users - Click here to start your Free Trial of Datadog now!
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> ,
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