Examples of org.antlr.runtime.tree.CommonTreeAdaptor

org.antlr.runtime.tree.CommonTreeAdaptor
A TreeAdaptor that works with any Tree implementation. It provides really just factory methods; all the work is done by BaseTreeAdaptor. If you would like to have different tokens created than ClassicToken objects, you need to override this and then set the parser tree adaptor to use your subclass. To get your parser to build nodes of a different type, override create(Token), errorNode(), and to be safe, YourTreeClass.dupNode(). dupNode is called to duplicate nodes during rewrite operations.

    r2.addChild(new CommonTree(new CommonToken(107)));
    r1.addChild(r2);
    r0.addChild(new CommonTree(new CommonToken(104)));
    r0.addChild(new CommonTree(new CommonToken(105)));


    CommonTree dup = (CommonTree)(new CommonTreeAdaptor()).dupTree(r0);


    assertNull(dup.parent);
    assertEquals(-1, dup.childIndex);
    dup.sanityCheckParentAndChildIndexes();
  }

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    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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    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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