Re: [Scheme-reports] REPL

[Alex Shinn <alexshinn@x>]

On Wed, Nov 14, 2012 at 5:46 PM, Helmut Eller <eller.helmut@x> wrote:

On Wed, Nov 14 2012, Alex Shinn wrote:

>     In Section 5.2 says that a REPL should permit to redefine existing
>     definitions.  What should happen if a record definition is redefined?
>     Should existing record instances be considered instances of the new
>     type?
>
> Again, implementations differ here so there's not much
> we can say.  Smalltalk-style class redefinition is a nice
> feature, but fragile and not currently widely implemented.

You can say what "should" happen.

We could say that iff everyone agreed on what should happen.

-- 

Alex

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