[LRUG] Serialising a struct

[Stephen Nelson-Smith]

Hi,

On Mon, Apr 14, 2014 at 3:27 PM, Paul Battley <pbattley at gmail.com> wrote:

> On 14 April 2014 15:07, Stephen Nelson-Smith <sanelson at gmail.com> wrote:
> > Marshal doesn't support dumping from a Struct
>
> Marshal doesn't support dumping an anonymous class. Structs are fine
> if they are assigned to a constant:
>
>     [1] pry(main)> Foo = Struct.new(:bar)
>     => Foo
>     [2] pry(main)> Marshal.dump(Foo.new)
>     => "\x04\bS:\bFoo\x06:\bbar0"
>
> I don't know if that helps you. If the structs are defined by the AWS
> library, perhaps not.
>

Yep - thanks for the clarification.  What I get back from AWS is already an
instance of the struct defined by AWS:

 [56] pry(main)> i = ec2.describe_images(owners:
['self']).images.first.to_h; nil
=> nil
[57] pry(main)> Marshal.dump(i)
TypeError: can't dump anonymous class #<Class:0x007ff5d9b6d768>
from (pry):55:in `dump'

S.
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