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creating operation parameters [message #1794783]

Thu, 06 September 2018 12:51

Siegfried Nolte

Messages: 48
Registered: August 2009

Member

Hi QVTo Community,

I am transforming class operations form source class attributes (getter and setter). The getter should get a return type based on the type of the attribute, more concrete the type will be generated from the Attributes type and the ParameterDirectionKind should be "return".

ownedParameter += object Parameter
{
name := '';
type := self.type.getPrimitiveType (pt);
direction := ParameterDirectionKind::return;
};

The problem is:
The direction-assignment does not work. Token "return" is invalid.

Is it? What can I do instead?

This Problem concerns the direction kinds "in", "out", "inout", too.

I am working with Eclipse 4.7.3, QVTo SDK 3.7.0.

Thanks for help,
Siegfried

[Updated on: Thu, 06 September 2018 13:20]

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Re: creating operation parameters [message #1794785 is a reply to message #1794783]

Thu, 06 September 2018 13:07

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

I presume that you are using the UML metamodel in which case I would agree with your expectation. Except that "return" is a reserved word so you need to escape it "_return" is quickest but not always applicable and unambiguous so "_'return'" is now favoured by the standard.

Regards

Ed Willink

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Re: creating operation parameters [message #1794792 is a reply to message #1794785]

Thu, 06 September 2018 14:51

Siegfried Nolte

Messages: 48
Registered: August 2009

Member

Yes, I am using the UML metamodel; I forgot to mention it.

And you are right, escaping the reserved words did it.
I choose "_return" first.

Thank you und best regards,
Siegfried

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