[racket] serialization of math/array

Unfortunately, I think that strategy would incur substantial overhead
for things like serialization of large arrays.

Sam

On Wed, Jul 23, 2014 at 11:28 AM, Matthias Felleisen
<matthias at ccs.neu.edu> wrote:
>
> On Jul 23, 2014, at 11:10 AM, Neil Toronto <neil.toronto at gmail.com> wrote:
>
>> On 07/16/2014 10:25 AM, Berthold Bäuml wrote:
>>> Hi,
>>>
>>> will there be serialization support for math/array and math/matrix in the near future? As far as I understand in principle it should be possible at leas in  a straight forward way as there are  already the routines array->list and list->array.
>>
>> Sorry it's taken so long to reply. Part of the problem is that `racket/serialize` isn't typed:
>>
>> #lang typed/racket
>>
>> > (require racket/serialize)
>> > serialize
>> Type Checker: missing type for identifier;
>> consider using `require/typed' to import it
>>  identifier: serialize
>>  from module: racket/serialize in: serialize
>>
>>
>> This and the fact that the array struct types are declared in Typed Racket makes adding serialization tricky at best. Also, it would only work in untyped Racket.
>>
>> Generally, deserializing is hard to make type-safe, and nobody has taken it up yet for Typed Racket. Occurrence typing should help, but would require `deserialize` to take a predicate argument (like the second argument to `list*->array`), which it currently doesn't do.
>
>
> Lucky us. I often leave the I/O parts of my programs untyped (I write either highly imprecise unchecked signatures or I don't provide types).
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