On Wed, 2008-09-17 at 17:02 -0700, Terence Parr wrote: > 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 $ > $?
As in: $$assignment_operator, or just $$ ? Jim > > Ter > > _______________________________________________ > antlr-dev mailing list > [email protected] > http://www.antlr.org:8080/mailman/listinfo/antlr-dev
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