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Preserve representation of primitives after code formatting. [message #1705495]

Mon, 17 August 2015 07:52

Stephan Hildebrandt

Messages: 25
Registered: July 2015

Junior Member

Hi,

I have the following extension of the basic Xtext terminal definitions:

Integer returns ecore::ELong:
HEX | ('-')? INT;

terminal HEX:
'0x' ('0'..'9' | 'A'..'F')+;

I.e. integer values can be either represented as normal numbers or as hexadecimal numbers. However, in the corresponding value converter's toString() method, I want decide whether to print a number as a hexadecimal number depending on how that value was represented before, i.e. how the user chose to represent it. How can I achieve that? Currently, I always return the normal (base 10) representation, which leads to the code formatter replacing all hexadecimal values with their base 10 representations.

Best regards,

Stephan

P.S.: In my domain model, I do not want any distinction between hexadecimal numbers and normal numbers. Every number in the domain model is a long value.

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Re: Preserve representation of primitives after code formatting. [message #1705497 is a reply to message #1705495]

Mon, 17 August 2015 07:58

Karsten Thoms

Messages: 762
Registered: July 2009
Location: Dortmund, Germany

Senior Member

The original text is stored in the node model. You might be interested to evaluate it during serialization.

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Re: Preserve representation of primitives after code formatting. [message #1705498 is a reply to message #1705497]

Mon, 17 August 2015 08:01

Stephan Hildebrandt

Messages: 25
Registered: July 2015

Junior Member

Thanks. But how can I access the node model during serialization? The value converter's toString() method only gets the value to be serialized as a parameter and by implementing the RuleSpecific interface I can access the grammar rule. But I do not know how to get a hold of the node model.

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