On Thu, Aug 18, 2005 at 12:24:40 +0000, Ingo Blechschmidt wrote:
> Hi, 
>  
> Yuval Kogman <nothingmuch <at> woobling.org> writes: 
> > So now that the skeptics can see why this is important, on the 
> > design side I'd like to ask for ideas on how the code serialization 
> > looks... 
> >  
> >  sub { $?DOM.document.write("<p>hello world!</p>") }.emit( 
> >   :runtime($browser_autodetect_object), 
> >   # this can be guessed by asking the $runtime object: 
> >   # :language<javascript>, 
> >  ); 
> >  
> > This is superficially nice, 
>  
> Indeed! 
>  
> > but here's what's missing: 
> [...] 
>  
> >  - what exactly is a code object? 
> >   - a wrapper for some PIL code 
> >   - that can be executed by the runtime 
>  
> Code objects may as well be executed at compile-time 
> (think macros, use and BEGIN blocks), but...: 

But it's still the runtime that runs them ;-)

Compilation has a runtime that runs the compiler, and compile-time
code. The output may be handed down to another runtime that actually
"runs".

>  
>     sub foo { $?DOM.document.write(...) } 
>     BEGIN { foo() };   # error, there's no $?DOM object 
>                        # at compile-time! 

Unless you're compiling in the browser ;-)

> Well, you call &code.emit above, so it's probably a Code 
> object, even though it calls subs and methods from the 
> Perl6::Internals namespace (or somesuch). 

Not &code, but the return value of &code.emit

>  
> >  - handling of data 
> >   - types of: 
> >    - globals? 
>  
> I've probably misunderstood you, but can't globals, like all 
> other variables, have any type you want them to have? 

Not types in the "kind of value" type... Read it as:

        handling of data... what types of data... global variables are
        types of data

> >    - closures? 
>  
> A subclass of Code, e.g. Bare. 

How are they stored?

> I'd like to have a pragma to switch between these policies. 

I doubt a pragma is enough - we need full introspection and fine
grained control for this, both in the lexical and the dynamic
scopes.

-- 
 ()  Yuval Kogman <[EMAIL PROTECTED]> 0xEBD27418  perl hacker &
 /\  kung foo master: /me supports the ASCII Ribbon Campaign: neeyah!!!

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