On Sep 17, 2008, at 3:50 PM, Sam Harwell wrote: > In the past, I noted that one of the ANTLR compile errors was > checking a visual ambiguity and not a syntactic ambiguity. In order > to work around the error, I have placed a label (“right=”) on one of > the references in the following rule. However, I still get: > > error 132: reference $assign_expression is ambiguous; rule > assign_expression is enclosing rule and referenced in the production > (assuming enclosing rule) > > assign_expression > : ( ternary_expression > -> ternary_expression > ) > ( assignment_operator > right=assign_expression > -> ^(assignment_operator $assign_expression > $right) > )? > ;
Because it is ambiguous, I elected to give an error message. Yep, we do need a way to reference the entire outer rule's tree. should it be $ $? Ter _______________________________________________ antlr-dev mailing list [email protected] http://www.antlr.org:8080/mailman/listinfo/antlr-dev
