Hi Doug

/proj/adaptive/www/course/f97/hw/1/adaptive-methods-graph-ex

How can I use two visitors in countInhRels4?

-- Karl

demjava -tracevis -displayvis -printvis -copyvis -equalvis -outputdir ./gen -code -grammar class-graph.cd class-graph.beh
Output directory ./gen does not exist, will create.
Parsing class-graph.cd...
Building hashtable of classes...
Adding generic visitors:
 PrintVisitor CopyVisitor EqualVisitor DisplayVisitor TraceVisitor UniversalVisitor
Marking not-parsed classes...
Marking visitor classes...
Expanding parameterized classes...
Converting repetition classes...
Filling in part names...
Setting inheritance links...
Saving expanded CD to ./gen/class-graph.xcd...
Reading behavior files:
 class-graph.beh
Filling in visitor names...
Marking derived parts...
Making generic visitor behavior files...
Reading behavior files:
 ./gen/UniversalVisitor.beh ./gen/PrintVisitor.beh ./gen/CopyVisitor.beh ./gen/EqualVisitor.beh ./gen/DisplayVisitor.beh ./gen/TraceVisitor.beh
Building traversal graph...
Converting adaptive methods...
Building visitor tables...
Expanding universal traversal...
Expanding static traversals...
  Marking allInh...  expanding...
  Marking __trav_countInhRels4...  expanding...
  Marking __trav_countInhRels5...  expanding...
Adding Enumeration thingies to Repetition classes
Adding Subtraversal class.
Generating Java code to ./gen...
Generating grammar to ./gen/grammar.jj...
Done.
(cd ./gen; javacc grammar.jj)
Java Compiler Compiler Version 0.6.1 (Parser Generator)
Copyright (c) 1996, 1997 Sun Microsystems Inc.
(type "javacc" with no arguments for help)
Reading from file grammar.jj . . .
File "ParseError.java" does not exist.  Will create one.
File "Token.java" does not exist.  Will create one.
File "ASCII_UCodeESC_CharStream.java" does not exist.  Will create one.
Parser generated successfully.
CLASSPATH=./gen:$CLASSPATH javac -J-mx32m -d ./gen -depend -deprecation gen/ASCII_UCodeESC_CharStream.java gen/Adj.java gen/Adj_list.java gen/Alternat.java gen/Any_vertex.java gen/Any_vertex_list.java gen/Cd_graph.java gen/Construct.java gen/CopyVisitor.java gen/CountingVisitor.java gen/DisplayVisitor.java gen/Empty.java gen/Empty_cd_graph.java gen/EqualVisitor.java gen/Labeled_vertex.java gen/Main.java gen/Nany_vertex_list.java gen/Neighbors.java gen/ParseError.java gen/Parser.java gen/ParserConstants.java gen/ParserTokenManager.java gen/PrintVisitor.java gen/Syntax_vertex.java gen/Token.java gen/TraceVisitor.java gen/UniversalVisitor.java gen/Vertex.java gen/__Subtraversal.java gen/__V_Cd_graph_countInhRels3.java gen/__V_Cd_graph_countInhRels5.java
gen/Cd_graph.java:30: Variable 'v0' is already defined in this method.
    DisplayVisitor v0 = new DisplayVisitor();
                   ^
gen/Cd_graph.java:31: Incompatible type for method. Can't convert DisplayVisitor to CountingVisitor.
    __trav_countInhRels4(v0, v0);
                         ^
gen/Cd_graph.java:32: Method get_return_val() not found in class DisplayVisitor.
    return v0.get_return_val();
                            ^
gen/Parser.java:264: Method common_UniversalVisitor(CountingVisitor) not found in class Parser.
    common_UniversalVisitor(it);
                           ^
4 errors
make[1]: *** [gen/compile] Error 1
make: *** [gen/Main.class] Error 2