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formatting/serializing of optional attributes [message #1067994]

Thu, 11 July 2013 15:21

Henrik Rentz-Reichert

Messages: 251
Registered: July 2009

Senior Member

Hi,

I have this rule using an optional integer attribute 'time':

PhysicalThread:
(default?='DefaultThread' | 'Thread') name=ID '{'
'execmode' '=' execmode=ExecMode
('interval' '=' time=TIME)?
'prio' '=' prio=PRIO
'stacksize' '=' stacksize=INT
'msgblocksize' '=' msgblocksize=INT
'msgpoolsize' '=' msgpoolsize=INT
'}'
;

Where TIME is a data type rule with a value converter to Integer.

Some execmodes need a time interval specified, others don't.
This is checked by validation and a quick fix is offered for both cases.

When the quick fix should remove the time interval I use an ISemanticModification to set the value to its default of 0.
The result is e.g.

DefaultThread PhysicalThread1 {
execmode = blocked
interval = 0s
prio = 0
stacksize = 1024
msgblocksize = 32
msgpoolsize = 10
}

But I would prefer the equivalent with the optional attribute assignment omitted completely

DefaultThread PhysicalThread1 {
execmode = blocked
prio = 0
stacksize = 1024
msgblocksize = 32
msgpoolsize = 10
}

How can this be achieved?
I already tried to make the attribute unsettable and then unsetting it in the quick fix - same result.

Thanks,
Henrik

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Re: formatting/serializing of optional attributes [message #1133037 is a reply to message #1067994]

Fri, 11 October 2013 15:10

Axel Guckelsberger

Messages: 341
Registered: July 2009

Senior Member

Hi Henrik,

did you find a solution to your question?

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Re: formatting/serializing of optional attributes [message #1410716 is a reply to message #1133037]

Thu, 21 August 2014 12:52

Henrik Rentz-Reichert

Messages: 251
Registered: July 2009

Senior Member

Hi Axel,

no, I couldn't find a solution (but didn't investigate with newer versions of Xtext).

-Henrik

Am 11.10.2013 um 17:10 schrieb Axel Guckelsberger:
> Hi Henrik,
>
> did you find a solution to your question?
>
>

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Re: formatting/serializing of optional attributes [message #1411048 is a reply to message #1410716]

Fri, 22 August 2014 09:03

Uli Merkel

Messages: 246
Registered: June 2013

Senior Member

I'm no expert on this, but just an idea:

In your Quickfix, you use the semantic model approach and set the value to 0.
What about deleting the complete interval instance from the AST?

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