Re: Bitarray and Bin_prot

"Kenneth Miller [email protected] [ocaml_beginners]" <[email protected]> Fri, 17 Mar 2017 12:34:09 +0000 (UTC)
Newsgroups gmane.comp.lang.ocaml.beginners
Message-ID <[email protected]>
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Yeah I agree. Perhaps there is something that bitarray allows you to conver=
t to and from that is binnable. That's not as good, but it's better than co=
pying the the module.
Also, perhaps accessing the conventional type `t` within Bitarray to salt i=
t with deriving bin_io would work?=C2=A0
On Friday, March 17, 2017, 7:49:36 AM EDT, Ackerley Tng [email protected]=
om [ocaml_beginners] <[email protected]> wrote:=C2=A0=20=20=20

Thanks! I looked in Bitarray, and saw that the issue was that one of the in=
ternal types didn't have [@@deriving bin_io] next to it, though all the sub=
types are actually Binable.
I can't just include Bitarray because that doesn't allow me to change the t=
ype in there.
As a workaround, I copied all of Bitarray's code into my module (effectivel=
y reimplementing Bitarray) although that isn't satisfactory...
On Fri, Mar 17, 2017 at 4:57 PM Kenneth Miller [email protected] =
[ocaml_beginners] <[email protected]> wrote:

 =C2=A0=20=20=20

bin_prot is a generative code produce in that it is written to programmatic=
ally explore the expression tree in order to apply known operations on each=
 primitive type, and compose them with the higher level types that ocaml ha=
s to offer. So, int, string, float, ect have default implementations, and o=
ther types are composed out of those such as record have a way of generatin=
g serialization code that applies these generated functions to the respecti=
ve record/tuple by type in the right order.=C2=A0
If bitarray is not binnable, that is because the bin_prot requires some int=
erface to be satisfied. You might look into the bit array type definition o=
n whatever project source provides it in order to see if you can yank just =
that out in a raw ocaml instance (with bin_prot) and see if salting with bi=
n_prot it directly yields any information about what is required. As far as=
 writing your own module extending bitarray, you can either do module bitar=
ray =3D struct include Bitarray <required binnable implementations here> en=
d


On Thursday, March 16, 2017, 11:11:57 PM EDT, Ackerley Tng ackerleytng@gmai=
l.com [ocaml_beginners] <[email protected]> wrote:=C2=A0  =
=20

Hi!=C2=A0
I was trying to write a binary representation of bitarray using bin_prot, b=
ut I realized a Bitarray is not binable.=C2=A0
Any tips on how to make it binable?=C2=A0
I guess one option is to extend bitarray by declaring my own module, includ=
ing bitarray, but then how would i fill in even one of the required functio=
ns?
The bin_prot code has a lot of macro looking stuff, if you could point me i=
n the right direction on how to understand the macro stuff and which part o=
f bin_prot is actually doing the real work of converting the data structure=
 to binary form, it'd be great!
Thanks!

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=20=20=20=20=20=20
=20=20=20=20=20=20
      <p><div style=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-s=
erif;font-size:medium;"><div><div>Yeah I agree. Perhaps there is something =
that bitarray allows you to convert to and from that is binnable. That's no=
t as good, but it's better than copying the the module.</div></div><div><br=
></div><div>Also, perhaps accessing the conventional type `t` within Bitarr=
ay to salt it with deriving bin_io would work?&nbsp;</div><div><br></div><d=
iv id=3D"yahoo_quoted_0106522579" class=3D"yahoo_quoted"><div>On Friday, Ma=
rch 17, 2017, 7:49:36 AM EDT, Ackerley Tng [email protected] [ocaml_beg=
inners] &lt;[email protected]&gt; wrote:</div><div><div id=3D=
"yiv5098711495"><div>
<span>=C2=A0</span>


<div id=3D"yiv5098711495ygrp-mlmsg">
  <div id=3D"yiv5098711495ygrp-msg">


    <div id=3D"yiv5098711495ygrp-text">
=20=20=20=20=20=20
=20=20=20=20=20=20
      <p></p><div dir=3D"ltr">Thanks! I looked in Bitarray, and saw that th=
e issue was that one of the internal types didn&#39;t have [@@deriving bin_=
io] next to it, though all the subtypes are actually Binable.<div><br clear=
=3D"none"></div><div>I can&#39;t just include Bitarray because that doesn&#=
39;t allow me to change the type in there.</div><div><br clear=3D"none"></d=
iv><div>As a workaround, I copied all of Bitarray&#39;s code into my module=
 (effectively reimplementing Bitarray) although that isn&#39;t satisfactory=
...</div></div><br clear=3D"none"><div class=3D"yiv5098711495yqt9972812352"=
 id=3D"yiv5098711495yqt78339"><div class=3D"yiv5098711495gmail_quote"><div =
dir=3D"ltr">On Fri, Mar 17, 2017 at 4:57 PM Kenneth Miller <a rel=3D"nofoll=
ow" shape=3D"rect" ymailto=3D"mailto:[email protected]" target=3D=
"_blank" href=3D"mailto:[email protected]">kennethadammiller@yaho=
o.com</a> [ocaml_beginners] &lt;<a rel=3D"nofollow" shape=3D"rect" ymailto=
=3D"mailto:[email protected]" target=3D"_blank" href=3D"mailt=
o:[email protected]">[email protected]</a>&gt; =
wrote:<br clear=3D"none"></div><blockquote class=3D"yiv5098711495gmail_quot=
e" style=3D"border-left:1px #ccc solid;">


<u class=3D"yiv5098711495gmail_msg"></u>









=20
<div class=3D"yiv5098711495gmail_msg" style=3D"background-color:#fff;">
<span class=3D"yiv5098711495gmail_msg">=C2=A0</span>


<div class=3D"yiv5098711495gmail_msg" id=3D"yiv5098711495m_-738264506965883=
0543ygrp-mlmsg">
  <div class=3D"yiv5098711495gmail_msg" id=3D"yiv5098711495m_-7382645069658=
830543ygrp-msg">


    <div class=3D"yiv5098711495gmail_msg" id=3D"yiv5098711495m_-73826450696=
58830543ygrp-text">
=20=20=20=20=20=20
=20=20=20=20=20=20
      <p class=3D"yiv5098711495gmail_msg"></p><div class=3D"yiv5098711495gm=
ail_msg" style=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;=
font-size:medium;"><div class=3D"yiv5098711495gmail_msg"><div class=3D"yiv5=
098711495gmail_msg">bin_prot is a generative code produce in that it is wri=
tten to programmatically explore the expression tree in order to apply know=
n operations on each primitive type, and compose them with the higher level=
 types that ocaml has to offer. So, int, string, float, ect have default im=
plementations, and other types are composed out of those such as record hav=
e a way of generating serialization code that applies these generated funct=
ions to the respective record/tuple by type in the right order.=C2=A0</div>=
</div><div class=3D"yiv5098711495gmail_msg"><br clear=3D"none" class=3D"yiv=
5098711495gmail_msg"></div><div class=3D"yiv5098711495gmail_msg">If bitarra=
y is not binnable, that is because the bin_prot requires some interface to =
be satisfied. You might look into the bit array type definition on whatever=
 project source provides it in order to see if you can yank just that out i=
n a raw ocaml instance (with bin_prot) and see if salting with bin_prot it =
directly yields any information about what is required. As far as writing y=
our own module extending bitarray, you can either do module bitarray =3D st=
ruct include Bitarray &lt;required binnable implementations here&gt; end</d=
iv></div></div></div></div></div><div class=3D"yiv5098711495gmail_msg" styl=
e=3D"background-color:#fff;"><div class=3D"yiv5098711495gmail_msg" id=3D"yi=
v5098711495m_-7382645069658830543ygrp-mlmsg"><div class=3D"yiv5098711495gma=
il_msg" id=3D"yiv5098711495m_-7382645069658830543ygrp-msg"><div class=3D"yi=
v5098711495gmail_msg" id=3D"yiv5098711495m_-7382645069658830543ygrp-text"><=
p class=3D"yiv5098711495gmail_msg"></p><div class=3D"yiv5098711495gmail_msg=
" style=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-si=
ze:medium;"><div class=3D"yiv5098711495gmail_msg"><br clear=3D"none" class=
=3D"yiv5098711495gmail_msg"></div><div class=3D"yiv5098711495m_-73826450696=
58830543yahoo_quoted yiv5098711495gmail_msg" id=3D"yiv5098711495m_-73826450=
69658830543yahoo_quoted_0414726696"><div class=3D"yiv5098711495gmail_msg">O=
n Thursday, March 16, 2017, 11:11:57 PM EDT, Ackerley Tng <a rel=3D"nofollo=
w" shape=3D"rect" class=3D"yiv5098711495gmail_msg" ymailto=3D"mailto:ackerl=
[email protected]" target=3D"_blank" href=3D"mailto:[email protected]">ac=
[email protected]</a> [ocaml_beginners] &lt;<a rel=3D"nofollow" shape=3D"=
rect" class=3D"yiv5098711495gmail_msg" ymailto=3D"mailto:ocaml_beginners@ya=
hoogroups.com" target=3D"_blank" href=3D"mailto:ocaml_beginners@yahoogroups=
.com">[email protected]</a>&gt; wrote:</div><div class=3D"yiv=
5098711495gmail_msg"><div class=3D"yiv5098711495gmail_msg" id=3D"yiv5098711=
495m_-7382645069658830543yiv7846580645"><div class=3D"yiv5098711495gmail_ms=
g">
<span class=3D"yiv5098711495gmail_msg">=C2=A0</span>


<div class=3D"yiv5098711495gmail_msg" id=3D"yiv5098711495m_-738264506965883=
0543yiv7846580645ygrp-mlmsg">
  <div class=3D"yiv5098711495gmail_msg" id=3D"yiv5098711495m_-7382645069658=
830543yiv7846580645ygrp-msg">


    <div class=3D"yiv5098711495gmail_msg" id=3D"yiv5098711495m_-73826450696=
58830543yiv7846580645ygrp-text">
=20=20=20=20=20=20
=20=20=20=20=20=20
      <p class=3D"yiv5098711495gmail_msg"></p><div class=3D"yiv5098711495gm=
ail_msg" dir=3D"ltr">Hi!=C2=A0<div class=3D"yiv5098711495gmail_msg"><br cle=
ar=3D"none" class=3D"yiv5098711495gmail_msg"></div><div class=3D"yiv5098711=
495gmail_msg">I was trying to write a binary representation of bitarray usi=
ng bin_prot, but I realized a Bitarray is not binable.=C2=A0</div><div clas=
s=3D"yiv5098711495gmail_msg"><br clear=3D"none" class=3D"yiv5098711495gmail=
_msg"></div><div class=3D"yiv5098711495gmail_msg">Any tips on how to make i=
t binable?=C2=A0</div><div class=3D"yiv5098711495gmail_msg"><br clear=3D"no=
ne" class=3D"yiv5098711495gmail_msg"></div><div class=3D"yiv5098711495gmail=
_msg">I guess one option is to extend bitarray by declaring my own module, =
including bitarray, but then how would i fill in even one of the required f=
unctions?</div><div class=3D"yiv5098711495gmail_msg"><br clear=3D"none" cla=
ss=3D"yiv5098711495gmail_msg"></div><div class=3D"yiv5098711495gmail_msg">T=
he bin_prot code has a lot of macro looking stuff, if you could point me in=
 the right direction on how to understand the macro stuff and which part of=
 bin_prot is actually doing the real work of converting the data structure =
to binary form, it&#39;d be great!</div><div class=3D"yiv5098711495gmail_ms=
g"><br clear=3D"none" class=3D"yiv5098711495gmail_msg"></div><div class=3D"=
yiv5098711495gmail_msg">Thanks!</div><div class=3D"yiv5098711495gmail_msg">=
<br clear=3D"none" class=3D"yiv5098711495gmail_msg"></div><div class=3D"yiv=
5098711495gmail_msg"><br clear=3D"none" class=3D"yiv5098711495gmail_msg"></=
div></div>


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