Package org.antlr.runtime.tree

Examples of org.antlr.runtime.tree.ParseTree

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  public ParseTree create(Object payload) {
    return new ParseTree(payload);
  }

  public void enterRule(String ruleName) {
    ParseTree parentRuleNode = (ParseTree)callStack.peek();
    ParseTree ruleNode = create(ruleName);
    parentRuleNode.addChild(ruleNode);
    callStack.push(ruleNode);
  }
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  public void exitRule(String ruleName) {
    callStack.pop();
  }

  public void consumeToken(Token token) {
    ParseTree ruleNode = (ParseTree)callStack.peek();
    ParseTree elementNode = create(token);
    ruleNode.addChild(elementNode);
  }
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    ParseTree elementNode = create(token);
    ruleNode.addChild(elementNode);
  }

  public void recognitionException(RecognitionException e) {
    ParseTree ruleNode = (ParseTree)callStack.peek();
    ParseTree errorNode = create(e);
    ruleNode.addChild(errorNode);
  }
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    CommonTokenStream tokens = new CommonTokenStream(lexEngine);
    tokens.setTokenTypeChannel(g.getTokenType("WS"), 99);
    //System.out.println("tokens="+tokens.toString());
    Interpreter parseEngine = new Interpreter(pg, tokens);
    ParseTree t = parseEngine.parse("prog");
    String result = t.toStringTree();
    String expecting =
      "(<grammar p> (prog while x { (assign i = (expr 1) ;) (assign y = (expr 3.42) ;) (assign z = (expr y) ;) } <EOF>))";
    assertEquals(expecting, result);
  }
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    CommonTokenStream tokens = new CommonTokenStream(lexEngine);
    tokens.setTokenTypeChannel(g.getTokenType("WS"), 99);
    //System.out.println("tokens="+tokens.toString());
    Interpreter parseEngine = new Interpreter(pg, tokens);
    ParseTree t = parseEngine.parse("prog");
    String result = t.toStringTree();
    String expecting =
      "(<grammar p> (prog while x { (assign i = (expr 1) MismatchedTokenException(5!=9))))";
    assertEquals(expecting, result);
  }
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    CommonTokenStream tokens = new CommonTokenStream(lexEngine);
    tokens.setTokenTypeChannel(g.getTokenType("WS"), 99);
    //System.out.println("tokens="+tokens.toString());
    Interpreter parseEngine = new Interpreter(pg, tokens);
    ParseTree t = parseEngine.parse("prog");
    String result = t.toStringTree();
    String expecting =
      "(<grammar p> (prog while x { (assign i = (expr MismatchedSetException(9!={5,10,11})))))";
    assertEquals(expecting, result);
  }
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    CommonTokenStream tokens = new CommonTokenStream(lexEngine);
    tokens.setTokenTypeChannel(g.getTokenType("WS"), 99);
    //System.out.println("tokens="+tokens.toString());
    Interpreter parseEngine = new Interpreter(pg, tokens);
    ParseTree t = parseEngine.parse("prog");
    String result = t.toStringTree();
    String expecting =
      "(<grammar p> (prog while x { (assign i = (expr NoViableAltException(9@[4:1: expr : ( INT | FLOAT | ID );])))))";
    assertEquals(expecting, result);
  }
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*/
public class ParseTreeBuilder extends BlankDebugEventListener {
  Stack callStack = new Stack();

  public ParseTreeBuilder(String grammarName) {
    ParseTree root = create("<grammar "+grammarName+">");
    callStack.push(root);
  }
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  /**  What kind of node to create.  You might want to override
   *   so I factored out creation here.
   */
  public ParseTree create(Object payload) {
    return new ParseTree(payload);
  }
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  public ParseTree create(Object payload) {
    return new ParseTree(payload);
  }

    public void enterRule(String filename, String ruleName) {
    ParseTree parentRuleNode = (ParseTree)callStack.peek();
    ParseTree ruleNode = create(ruleName);
    parentRuleNode.addChild(ruleNode);
    callStack.push(ruleNode);
  }
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Related Classes of org.antlr.runtime.tree.ParseTree

  • org.antlr.runtime.debug.ParseTreeBuilder
  • org.antlr.runtime.Token
  • org.antlr.test.TestInterpretedParsing
  • org.antlr.tool.Interp
  • org.antlr.works.interpreter.InterpreterTab
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