[squeak-dev] Re: Re: pragmas usage

itsme213 itsme213 at hotmail.com
Wed Mar 19 13:57:36 UTC 2008

"Ramon Leon" <ramon.leon at allresnet.com> wrote in message

> Pragmas are static and aren't nearly as flexible as
> Magritte descriptors, which are real objects and don't face the 
> limitations
> of pragmas.

Perhaps it need not be either-or? e.g. The pragma could be evaluated to 
record the "static" descriptions on the classes as any kind of real objects, 
including Magritte-like Descriptions:

  <setUpMeta: #bar>

PragmaInterpreter>>setUpMeta: aSymbol for: aClass
  aClass recordMeta: aSymbol

And there could still be instance-level access from objects, which by 
default just uses the "static" descriptions that PragmaInterpreter recorded 
on the classes, but has a hook for dynamic (instance-specific) behavior:

Object>>getMeta: aSymbol
 (self class getMeta: aSymbol)
    overridenBy: (self dynamicGetMeta: aSymbol)

Just a thought.

- Sophie

More information about the Squeak-dev mailing list