Java 类org.antlr.runtime.MissingTokenException 实例源码

@Override
public String toString()
{
    if (trappedException instanceof MissingTokenException)
    {
        return "<missing type: " +
               ( (MissingTokenException)trappedException ).getMissingType() +
               ">";
    } else if (trappedException instanceof UnwantedTokenException) {
        return "<extraneous: " +
               ( (UnwantedTokenException)trappedException ).getUnexpectedToken() +
               ", resync=" + getText() + ">";
    } else if (trappedException instanceof MismatchedTokenException) {
        return "<mismatched token: " + trappedException.token + ", resync=" + getText() + ">";
    } else if (trappedException instanceof NoViableAltException) {
        return "<unexpected: " + trappedException.token +
               ", resync=" + getText() + ">";
    }
    return "<error: " + getText() + ">";
}

/**
    * Method called in AntLR grammars for AntLR lexer to CLScript exceptions conversion
 * 
    * @param e
    * @return
    */
public RuntimeException createException(RecognitionException e) {
       String message = "";

       if (e instanceof NoViableAltException) {
           message = "Syntax error. ";
       } else if (e instanceof MissingTokenException) {
           message = "Missing token ";
       } else if (e instanceof UnwantedTokenException) {
           UnwantedTokenException ex = (UnwantedTokenException) e;
           ex.getUnexpectedToken().getText();
           message = "Unkow token '" + ex.getUnexpectedToken().getText() + "' at line " + e.token.getLine() + ":" + e.token.getCharPositionInLine();        
       } else {
           message = "Syntax error near ";
       }

       return new CLScriptException(message,e);
   }

/**
 * Method called in AntLR grammars for AntLR parser to CLScript exceptions conversion
 * 
 * @param e
 * @return
 */
public RuntimeException createException(RecognitionException e) {
       String message = "";
       boolean addTokenAndLine = true;
       if (e instanceof NoViableAltException) {
           message = "Syntax error. ";
       } else if (e instanceof MissingTokenException) {
           message = "Missing token ";
       } else if (e instanceof UnwantedTokenException) {
           UnwantedTokenException ex = (UnwantedTokenException) e;
           ex.getUnexpectedToken().getText();
           message = "Unkow token '" + ex.getUnexpectedToken().getText() + "' at line " + e.token.getLine() + ":" + e.token.getCharPositionInLine();
           addTokenAndLine = false;
       } else if(e instanceof ParserHelperException){
        message = e.toString();         
       }
       else {
           message = "Syntax error near ";
       }
       if (addTokenAndLine) {
           message = message + "'" + e.token.getText() + "' at line " + e.token.getLine() + ":" + e.token.getCharPositionInLine();
       }
       return new CLScriptException(message,e);
   }

@Override
public String toString()
{
    if (trappedException instanceof MissingTokenException)
    {
        return "<missing type: " +
               ( (MissingTokenException)trappedException ).getMissingType() +
               ">";
    } else if (trappedException instanceof UnwantedTokenException) {
        return "<extraneous: " +
               ( (UnwantedTokenException)trappedException ).getUnexpectedToken() +
               ", resync=" + getText() + ">";
    } else if (trappedException instanceof MismatchedTokenException) {
        return "<mismatched token: " + trappedException.token + ", resync=" + getText() + ">";
    } else if (trappedException instanceof NoViableAltException) {
        return "<unexpected: " + trappedException.token +
               ", resync=" + getText() + ">";
    }
    return "<error: " + getText() + ">";
}

@Test
public void testVector() throws RecognitionException
{
    runParser("[.5, 2.23, .17];");
    assertNoError();
    assertEquals(TraciParser.BLOCK, parseTree.getType());
    assertEquals(1, parseTree.getChildCount());
    Tree node = parseTree.getChild(0);
    assertEquals(TraciParser.VECTOR, node.getType());
    assertEquals(2, node.getChildCount());
    assertEquals(TraciParser.LBRACKET, node.getChild(0).getType());
    node = node.getChild(1);
    assertEquals(TraciParser.ARGS, node.getType());
    assertEquals(3, node.getChildCount());

    runParser("[.5, 2.23, .17;");
    assertError(MissingTokenException.class);

    runParser("[.5, 2.23 .17];");
    assertError(MissingTokenException.class);

    runParser("[.5, 2.23];");
    assertError(MismatchedTokenException.class);

    runParser("[.5, 2.23, .17, 5];");
    assertError(MismatchedTokenException.class);
    assertError(UnwantedTokenException.class);
}

@Test
public void testColor() throws RecognitionException
{
    runParser("color [.5, 2.23, .17];");
    assertNoError();
    assertEquals(TraciParser.BLOCK, parseTree.getType());
    assertEquals(1, parseTree.getChildCount());
    Tree node = parseTree.getChild(0);
    assertEquals(TraciParser.COLOR, node.getType());
    assertEquals(1, node.getChildCount());
    node = node.getChild(0);
    assertEquals(TraciParser.ARGS, node.getType());
    assertEquals(3, node.getChildCount());

    runParser("color [.5, 2.23, .17, .5];");
    assertNoError();
    assertEquals(TraciParser.BLOCK, parseTree.getType());
    assertEquals(1, parseTree.getChildCount());
    node = parseTree.getChild(0);
    assertEquals(TraciParser.COLOR, node.getType());
    assertEquals(1, node.getChildCount());
    node = node.getChild(0);
    assertEquals(TraciParser.ARGS, node.getType());
    assertEquals(4, node.getChildCount());

    runParser("color [.5, 2.23, .17;");
    assertError(MissingTokenException.class);

    runParser("color [.5, 2.23 .17];");
    assertError(MissingTokenException.class);

    runParser("color color [.5, 2.23, .17];");
    assertError(UnwantedTokenException.class);

    runParser("color [.5, 2.23];");
    assertError(MismatchedTokenException.class);

    runParser("color [.5, 2.23, .17, 5, 7];");
    assertError(MismatchedTokenException.class);
    assertError(UnwantedTokenException.class);
}