this method is called after visiting each child in #visitchildren . this method is first called before the first child is visited ; at that point currentresult will be the initialvalue in the default implementation , the initial value is returned by a call to #defaultresult . this method is not called after the last child is visited . the default implementation always returns true , indicating that visitchildren should only return after all children are visited.one reason to override this method is to provide a `` short circuit '' evaluation option for situations where the result of visiting a single child has the potential to determine the result of the visit operation as a whole . concode_field_sep PlaceHolder placeHolder concode_field_sep T visitErrorNode concode_elem_sep T aggregateResult concode_elem_sep T visitTerminal concode_elem_sep T visit concode_elem_sep T defaultResult concode_elem_sep T visitChildren
boolean function ( RuleNode arg0 , T arg1 ) { return true ; }