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[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 9528]
This commit is contained in:
parrt 2011-12-05 09:44:40 -08:00
parent 265a189a86
commit cab803d5f3
2 changed files with 9 additions and 6 deletions
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8
runtime/Java/src/org/antlr/v4/runtime/atn/ParserATNSimulator.java
View File

@ -892,10 +892,12 @@ public class ParserATNSimulator<Symbol> extends ATNSimulator {
Walk and find state config lists with > 1 alt. If none, no conflict. return null. Here, states 11
and 8 have lists with both alts 1 and 2. Must check these config lists for conflicting configs.
s : (ID | ID ID?) ';' ;
*/
@Nullable
public Set<Integer> getAmbiguousAlts(@NotNull OrderedHashSet<ATNConfig> configs) {
// System.out.println("### check ambiguous "+configs);
System.out.println("### check ambiguous "+configs);
Set<Integer> ambigAlts = null;
// First get a list of configurations for each state.
// Most of the time, each state will have one associated configuration.
@ -925,7 +927,7 @@ public class ParserATNSimulator<Symbol> extends ATNSimulator {
}
}
// System.out.println("### stateToConfigListMap="+stateToConfigListMap);
System.out.println("### stateToConfigListMap="+stateToConfigListMap);
if ( numPotentialConflicts==0 ) return null;
@ -959,7 +961,7 @@ public class ParserATNSimulator<Symbol> extends ATNSimulator {
}
}
// System.out.println("### ambigAlts="+ambigAlts);
System.out.println("### ambigAlts="+ambigAlts);
return ambigAlts;
}

7
tool/playground/T.g
View File

@ -1,4 +1,5 @@
grammar T;
s : b c ;
b : A ;
c : C ;
s : (ID | ID ID?) ';' ;
ID : 'a'..'z'+ ;
INT : '0'..'9'+;
WS : (' '|'\n') {skip();} ;