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How to fetch value from my text [message #1790324]

Fri, 08 June 2018 11:37

shubhankar chowdhury

Messages: 13
Registered: January 2018

Junior Member

Hi

I have my grammar which looks like this :

.......
.............

DataType2:
'DataType2' name=ID
'{'
'DataTypeRef' DataTypeRef = ( BasicType | OwnType )
'}';
.......

BasicType : Basic8 | Basic16 | BasicBool ;

Basic8 :{Basic8 } "unit9";
Basic16 :{Basic16 } "unit18";
BasicBool :{BasicBool} "boolean";

OwnTypes : referenced=[TypeX| QualifiedName];

TypeX: BasicDataType;

.................
..................

Now when user can write a file with the above data :

DataType2 abc {
DataTypeRef unit18 //(here i get a dropdown with values "unit9,unit18,bool" )
}

till here everything is fine ...:)

............................

now I want to fetch the "unit8" from the file in my back-end.
How to get this value from the user file, as I am not able to fetch the value from the object?

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Re: How to fetch value from my text [message #1790325 is a reply to message #1790324]

Fri, 08 June 2018 11:39

Christian Dietrich

Messages: 12252
Registered: July 2009

Senior Member

Hi,

i do not understand your question.

myDataType2.getDataTypeRef() should give you an instance of Basic16

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Re: How to fetch value from my text [message #1790330 is a reply to message #1790325]

Fri, 08 June 2018 11:51

shubhankar chowdhury

Messages: 13
Registered: January 2018

Junior Member

Yes, it is giving the instance of Basic16 but form that object I am not able to retrieve unit18.

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Re: How to fetch value from my text [message #1790332 is a reply to message #1790330]

Fri, 08 June 2018 11:53

Christian Dietrich

Messages: 12252
Registered: July 2009

Senior Member

i dont understand what you mean. do you have multiple different Basic16 ?
if not the mapping is 1:1

if yes you should have a different grammar e.g.

Basic16 :{Basic16 } value="unit18";

Need professional support for Xtext, Xpand, EMF?
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Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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