[antlr-interest] java.lang.StackOverflowError
wirving at beats.hu
wirving at beats.hu
Thu May 7 06:47:00 PDT 2009
Helo!
I want to create a Tree Grammar from my "normal" grammar (with the method
described in the ANTLR book), and after I corrected some obvious errors
(remove AST operators, etc.) I got this one:
Exception in thread "Thread-5" java.lang.StackOverflowError
at java.util.AbstractList$Itr.<init>(Unknown Source)
at java.util.AbstractList$ListItr.<init>(Unknown Source)
at java.util.AbstractList.listIterator(Unknown Source)
at java.util.AbstractList.listIterator(Unknown Source)
at org.antlr.misc.IntervalSet.add(IntervalSet.java:104)
at org.antlr.misc.IntervalSet.add(IntervalSet.java:93)
at org.antlr.misc.IntervalSet.of(IntervalSet.java:74)
at org.antlr.misc.IntervalSet.complement(IntervalSet.java:231)
at org.antlr.misc.IntervalSet.subtract(IntervalSet.java:264)
at org.antlr.analysis.DFAState.addReachableLabel(DFAState.java:343)
at org.antlr.analysis.DFAState.addNFAConfiguration(DFAState.java:254)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:633)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:756)
at org.antlr.analysis.NFAToDFAConverter.closure(NFAToDFAConverter.java:709)
....
and so on.
What could be wrong? How can I "debug" this kind of errors?
Thanks,
Zoli
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