List of LA() Examples

Examples of LA()

org.antlr.runtime.IntStream.LA()
Get int at current input pointer + i ahead where i=1 is next int. Negative indexes are allowed. LA(-1) is previous token (token just matched). LA(-i) where i is before first token should yield -1, invalid char / EOF.
org.antlr.runtime.tree.CommonTreeNodeStream.LA()
org.antlr.v4.runtime.CharStream.LA()
org.antlr.v4.runtime.CommonTokenStream.LA()
org.antlr.v4.runtime.TokenStream.LA()

Examples of org.antlr.v4.runtime.CharStream.LA()

   * particular case by throwing an {@link IllegalStateException}.
   */
  @Test(expected = IllegalStateException.class)
  public void testConsumeEOF() throws Exception {
    CharStream input = createStream("");
    assertEquals(IntStream.EOF, input.LA(1));
    input.consume();
    input.consume();
  }


  @Test(expected = IllegalArgumentException.class)

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Examples of org.antlr.v4.runtime.CharStream.LA()

  @Test
  public void testLastChar() {
    CharStream input = createStream("abcdef");


    input.consume();
    assertEquals('a', input.LA(-1));


    int m1 = input.mark();
    input.consume();
    input.consume();
    input.consume();

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Examples of org.antlr.v4.runtime.CharStream.LA()


    int m1 = input.mark();
    input.consume();
    input.consume();
    input.consume();
    assertEquals('d', input.LA(-1));


    input.seek(2);
    assertEquals('b', input.LA(-1));


    input.release(m1);

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Examples of org.antlr.v4.runtime.CharStream.LA()

    input.consume();
    input.consume();
    assertEquals('d', input.LA(-1));


    input.seek(2);
    assertEquals('b', input.LA(-1));


    input.release(m1);
    input.seek(3);
    assertEquals('c', input.LA(-1));
    // this special case is not required by the IntStream interface, but

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Examples of org.antlr.v4.runtime.CharStream.LA()

    input.seek(2);
    assertEquals('b', input.LA(-1));


    input.release(m1);
    input.seek(3);
    assertEquals('c', input.LA(-1));
    // this special case is not required by the IntStream interface, but
    // UnbufferedCharStream allows it so we have to make sure the resulting
    // state is consistent
    input.seek(2);
    assertEquals('b', input.LA(-1));

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Examples of org.antlr.v4.runtime.CharStream.LA()

    assertEquals('c', input.LA(-1));
    // this special case is not required by the IntStream interface, but
    // UnbufferedCharStream allows it so we have to make sure the resulting
    // state is consistent
    input.seek(2);
    assertEquals('b', input.LA(-1));
  }


  @Test public void test1Char() throws Exception {
    TestingUnbufferedCharStream input = createStream("x");
    assertEquals('x', input.LA(1));

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Examples of org.antlr.v4.runtime.CharStream.LA()

    assertEquals("\uFFFF", input.getBuffer());
  }


    @Test public void test2CharAhead() throws Exception {
       CharStream input = createStream("xy");
       assertEquals('x', input.LA(1));
       assertEquals('y', input.LA(2));
       assertEquals(IntStream.EOF, input.LA(3));
     }


    @Test public void testBufferExpand() throws Exception {

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Examples of org.antlr.v4.runtime.CharStream.LA()

  }


    @Test public void test2CharAhead() throws Exception {
       CharStream input = createStream("xy");
       assertEquals('x', input.LA(1));
       assertEquals('y', input.LA(2));
       assertEquals(IntStream.EOF, input.LA(3));
     }


    @Test public void testBufferExpand() throws Exception {
    TestingUnbufferedCharStream input = createStream("01234", 2);

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Examples of org.antlr.v4.runtime.CharStream.LA()


    @Test public void test2CharAhead() throws Exception {
       CharStream input = createStream("xy");
       assertEquals('x', input.LA(1));
       assertEquals('y', input.LA(2));
       assertEquals(IntStream.EOF, input.LA(3));
     }


    @Test public void testBufferExpand() throws Exception {
    TestingUnbufferedCharStream input = createStream("01234", 2);
       assertEquals('0', input.LA(1));

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Examples of org.antlr.v4.runtime.CharStream.LA()

       assertEquals(IntStream.EOF, input.LA(6));
     }


    @Test public void testBufferWrapSize1() throws Exception {
       CharStream input = createStream("01234", 1);
        assertEquals('0', input.LA(1));
        input.consume();
        assertEquals('1', input.LA(1));
        input.consume();
        assertEquals('2', input.LA(1));
        input.consume();

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