Examples of org.antlr.runtime.tree.TreeAdaptor

org.antlr.runtime.tree.TreeAdaptor
How to create and navigate trees. Rather than have a separate factory and adaptor, I've merged them. Makes sense to encapsulate. This takes the place of the tree construction code generated in the generated code in 2.x and the ASTFactory. I do not need to know the type of a tree at all so they are all generic Objects. This may increase the amount of typecasting needed. :(

    CommonTree oldRoot = new CommonTree((Token)null);
    oldRoot.addChild(new CommonTree(new CommonToken(101)));
    oldRoot.addChild(new CommonTree(new CommonToken(102)));
    oldRoot.addChild(new CommonTree(new CommonToken(103)));


    TreeAdaptor adaptor = new CommonTreeAdaptor();
    adaptor.becomeRoot(newRoot, oldRoot);
    newRoot.sanityCheckParentAndChildIndexes();
  }

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    CommonTree oldRoot = new CommonTree(new CommonToken(101));
    oldRoot.addChild(new CommonTree(new CommonToken(102)));
    oldRoot.addChild(new CommonTree(new CommonToken(103)));


    TreeAdaptor adaptor = new CommonTreeAdaptor();
    adaptor.becomeRoot(newRoot, oldRoot);
    newRoot.sanityCheckParentAndChildIndexes();
  }

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            public void emitErrorMessage(String msg) {
                throw new DqlParseException(msg);
            }
        };
        
        final TreeAdaptor adaptor = new CommonTreeAdaptor() {
            @Override
            public Object create(Token payload) {
                return new CommonTree(payload);
            }
        };

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