std.serialization: pre-voting review / discussion

[ilya-stromberg]

On Tuesday, 20 August 2013 at 10:51:25 UTC, Johannes Pfau wrote:
> Am Tue, 20 Aug 2013 10:40:57 +0200
> schrieb "ilya-stromberg" <ilya-stromberg-2009 at yandex.ru>:
>> We can use InputRange like this:
>> 
>> import std.file;
>> auto archive = new Archive()
>> Serializer(archive).serialize(object);
>> //Archive implements InputRange for ubyte[]
>> write("file", archive);
>
> Yes, InputRange is more flexible, but it's also more difficult 
> to
> implement and less efficient:
> What happens between the 'serialize' and the 'write' call? 
> Archive
> has to cache the data, either the original object or the final
> produced data in an ubyte[] buffer.

No, Archive have to do NOTHING. 'serialize' call must only store 
pointer to the object - without this requirement we can't have 
lazy range. Serialization starts afrer 'write' call, and 
ArchiveInputRange have to store current serialization state (like 
Serializer in current implementation).