Package org.antlr.runtime.tree

Examples of org.antlr.runtime.tree.CommonTreeNodeStream.push()

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    for (int k=1; k<=indexOf107; k++) { // consume til 107 node
      stream.consume();
    }
    // CALL 102
    assertEquals(107, ((Tree)stream.LT(1)).getType());
    stream.push(indexOf102);
    assertEquals(102, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume 102
    assertEquals(Token.DOWN, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume DN
    assertEquals(103, ((Tree)stream.LT(1)).getType());
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    for (int k=1; k<=indexOf107; k++) { // consume til 107 node
      stream.consume();
    }
    assertEquals(107, ((Tree)stream.LT(1)).getType());
    // CALL 102
    stream.push(indexOf102);
    assertEquals(102, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume 102
    assertEquals(Token.DOWN, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume DN
    assertEquals(103, ((Tree)stream.LT(1)).getType());
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    assertEquals(103, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume 103

    // CALL 104
    int indexOf104 = 6;
    stream.push(indexOf104);
    assertEquals(104, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume 102
    assertEquals(Token.DOWN, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume DN
    assertEquals(105, ((Tree)stream.LT(1)).getType());
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    int indexOf102 = 2;
    int indexOf104 = 6;
    assertEquals(Token.EOF, ((Tree)stream.LT(1)).getType());

    // CALL 102
    stream.push(indexOf102);
    assertEquals(102, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume 102
    assertEquals(Token.DOWN, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume DN
    assertEquals(103, ((Tree)stream.LT(1)).getType());
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    // RETURN (to empty stack)
    stream.pop();
    assertEquals(Token.EOF, ((Tree)stream.LT(1)).getType());

    // CALL 104
    stream.push(indexOf104);
    assertEquals(104, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume 102
    assertEquals(Token.DOWN, ((Tree)stream.LT(1)).getType());
    stream.consume(); // consume DN
    assertEquals(105, ((Tree)stream.LT(1)).getType());
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    // make more than INITIAL_CALL_STACK_SIZE pushes
    Tree r0 = new CommonTree(new CommonToken(101));
    CommonTreeNodeStream stream = new CommonTreeNodeStream(r0);
    // go 1 over initial size
    for (int i=1; i<=CommonTreeNodeStream.INITIAL_CALL_STACK_SIZE+1; i++) {
      stream.push(i);
    }
    assertEquals(10, stream.pop());
    assertEquals(9, stream.pop());
  }
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