Hello,
I've this grammar: http://pastebin.com/dNzdGx8R but i get this error
when I test it with AntlrWorks:
[11:23:59] /Users/hammer/output/RDFPathParser.java:383: incompatible types
[11:23:59] found : RDFPathParser.repeat_return
[11:23:59] required: RDFPathParser.shortestPath_return
[11:23:59] v=repeat();
[11:23:59] ^
[11:23:59] /Users/hammer/output/RDFPathParser.java:586: incompatible types
[11:23:59] found : RDFPathParser.filter_return
[11:23:59] required: RDFPathParser.subquery_return
[11:23:59] v=filter();
[11:23:59] ^
[11:23:59] 2 errors
Basically I think the problem is the assignment in the subrules with ORs
in two statements:
locationStep: edge condition? (v=repeat | v=shortestPath)? ('>'
locationStep)?
-> ^(LOCATIONSTEP condition $v locationStep);
condition: ( v=filter | v=subquery ) condition?
-> ^(CONDITION $v condition);
How do I handle these situations where I have the two or more options in
a subrule?
Thanks
Claudio
--
Claudio Martella
Free Software & Open Technologies
Analyst
TIS innovation park
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