Re: [ANN] an EBNF parser and coding pattern tool (LGPL)

[Stephen Leake <Stephen.A.Leake@nasa.gov>]

codeworker@free.fr (Cedric LEMAIRE) writes:

> How to write with C++ templates an "Object Unmarshaller", for
> instance? I mean, something that reads the serialized content of an
> object and that builds the corresponding object in memory. Be
> careful! No intervention must be done on these objects in C++ to
> facilitate their integration into the "unmarshaller".

C++ templates can't do this. Neither do Ada generics. But I could
easily write a code generator to do this with ASIS.

Is there any language whose generics do this? 

> How to write an "Object Walker", something that enables to navigate
> amongst the object attributes of the instances, for applying a task on
> them (starting from a given object: to initialize all of them or to
> serialize all of them or describing them in HTML to query the
> application from a browser ...)?

You've lost me here. If I need to navigate a tree, I first have to
build the tree, presumably using a tree class. Then the tree class
must provide a "walker" (aka "iterator"). Where do "generics" or
"templates" come into it?

-- 
-- Stephe
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