[Uml-devel] [Bug 109909] New: python code generation missing class attributes, init code. (fwd)

[Paulo Sehn]

I think that we have to follow UML as closest as possible but we also
need a way to be flexible for language specific features. As far as I
read in the bug list and another mails we could do this using
stereotypes.

Regarding the operation parameters/attributes, we could define and
document how each language generator/importer will handle these. For
c++ we could use :

if parameter is in, we are passing by copy, if it is inout could be a
reference, if it was out could be pointer.

myOp (firstParm : in int, secondParm : inout int, thirdParam : out int) : void

void myOp (int, int &, int *);

And we can associate a Stereotype to generate things like :
myOp (firstParm : in int, secondParm : inout int, thirdParam : out int) : void
<<const>> secondParm

void myOp (int, const int &, int *);

Regards,
Paulo Sehn

On 8/1/05, Oliver.Kellogg at t-online.de <Oliver.Kellogg at t-online.de> wrote:
> Richard Dale wrote:
> >
> > So my question is - Should C++ types and commenting style be the 'lingua
> > franca' for Umbrello, and code for different target languages could always
> > be generated from that?
> >
> 
> UML purists would say "no". The level of detail allowed by C++ e.g. in
> passing parameters to a method does not match up well with high level
> modeling. In fact, UML defines its own syntax for operation parameters,
> for example:
> 
>    myOp(firstParm : in boolean, secondParm : inout string) : float
> 
> This syntax is most closely mirrored by Ada and CORBA IDL.
> 
> On the other hand, certainly many people use Umbrello for importing their
> ready done C++ projects. We are then faced with the difficulty of mapping
> the very detailed C++ parameter passing mechanisms to the coarse grained
> "in", "out", and "inout" of UML.
> 
> Oliver
> 
> 
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