Examples of xtc.tree.Visitor

xtc.tree.Visitor
The superclass of all node visitors.
Nodes may contain children that are lists of nodes. To simplify the processing of such lists with visitors, this class defines three helper methods that apply a visitor to a list of nodes:
- {@link #iterate(Pair)} invokes dispatch() on eachelement of the list and ignores any results.
- {@link #map(Pair)} invokes dispatch() on eachelement of the list while also collecting the results in a new list.
- {@link #mapInPlace(Pair)} invokes dispatch() oneach element of the list while also updating the list with the results.
Additonally, Node provides helper methods to dynamically test and cast lists of nodes through {@link Node#isList(Object)} and {@link Node#toList(Object)} respectively. @author Robert Grimm @version $Revision: 1.30 $

    
    if (0 < runtime.errorCount()) return ;
      
    if (runtime.test("printSymbolTable")) {
      if (null != table){
        Visitor visitor = runtime.console().visitor();
        try {
          table.root().dump(runtime.console());
        } finally {
          runtime.console().register(visitor);
        }

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   *   to set the semantic value.
   * @return <code>true</code> if the element sets the semantic value.
   */
  @SuppressWarnings("unused")
  public static boolean setsValue(Element e, final boolean all) {
    return (Boolean)new Visitor() {
        private boolean isLast = true;


        public Boolean visit(OrderedChoice c) {
          if (! isLast) return Boolean.FALSE;

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  /** Print the symbol table. */
  @SuppressWarnings("unused")
  private final void printSymbolTable() {
    if (null != table) {
      Visitor visitor = runtime.console().visitor();
      try {
        table.root().dump(runtime.console());
      } finally {
        runtime.console().register(visitor);
      }

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   *
   * @param runtime The runtime.
   */
  public void trace(Runtime runtime) {
    // Save the registered visitor.
    Visitor     visitor = runtime.console().visitor();
    TypePrinter printer = new TypePrinter(runtime.console());
    try {
      printer.dispatch(this);
      runtime.console().pln();
    } finally {

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Related Classes of xtc.tree.Visitor

xtc.parser.Analyzer

xtc.type.Type

xtc.typical.Transformer

xtc.typical.Typical

java.lang.reflect.Method

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