GNU bug report logs - #11198
serializing structs (prefabs)

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Message #29 received at 11198 <at> debbugs.gnu.org (full text, mbox):

From: Noah Lavine <noah.b.lavine <at> gmail.com>
To: Andy Wingo <wingo <at> pobox.com>
Cc: Mark H Weaver <mhw <at> netris.org>,
	Ludovic Courtès <ludo <at> gnu.org>, 11198 <at> debbugs.gnu.org,
	Klaus Stehle <klaus.stehle <at> uni-tuebingen.de>
Subject: Re: bug#11198: problems reading data with a "read-hash-extend"
	registered reader
Date: Tue, 24 Apr 2012 07:24:18 -0400

Hello,

>> I think the reader should only return valid Scheme objects that have a
>> read syntax (info "(r5rs) Lexical Structure"), and records are not among
>> them.
>
> I agree, FWIW.

This seems like circular logic to me - extending the reader should
mean that new types can have read syntax. The problem here, I think,
is that the compiler also needs to know how to serialize those types.

Why don't we provide an interface to define a serializer as well as a
reader, and have compile-assembly use these serializers? As long as
each type has both a serializer and a reader, it should work fine.
That also feels symmetrical, which I take as a good sign. :-)

Noah

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