[racket] serialization of math/array

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.

Neil ⊥