Package org.antlr.v4.runtime.tree.pattern

Examples of org.antlr.v4.runtime.tree.pattern.ParseTreePatternMatcher.compile()

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   */
  public ParseTreePattern compileParseTreePattern(String pattern, int patternRuleIndex,
                          Lexer lexer)
  {
    ParseTreePatternMatcher m = new ParseTreePatternMatcher(lexer, this);
    return m.compile(pattern, patternRuleIndex);
  }

  @NotNull
  public ANTLRErrorStrategy getErrorHandler() {
    return _errHandler;
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      rawGenerateAndBuildRecognizer("X2.g4", grammar, "X2Parser", "X2Lexer", false);
    assertTrue(ok);

    ParseTreePatternMatcher m = getPatternMatcher("X2");

    ParseTreePattern t = m.compile("<ID> = <expr> ;", m.getParser().getRuleIndex("s"));
    String results = t.getPatternTree().toStringTree(m.getParser());
    String expected = "(s <ID> = (expr <expr>) ;)";
    assertEquals(expected, results);
  }
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    ParseTreePatternMatcher m = getPatternMatcher("X2");

    boolean failed = false;
    try {
      m.compile("<ID> = <expr> ; extra", m.getParser().getRuleIndex("s"));
    }
    catch (ParseTreePatternMatcher.StartRuleDoesNotConsumeFullPattern e) {
      failed = true;
    }
    assertTrue(failed);
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    ParseTreePatternMatcher m = getPatternMatcher("X2");

    boolean failed = false;
    try {
      m.compile("<ID> ;", m.getParser().getRuleIndex("s"));
    }
    catch (InputMismatchException e) {
      failed = true;
    }
    assertTrue(failed);
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    ParseTreePatternMatcher m = getPatternMatcher("X2");

    boolean failed = false;
    try {
      m.compile("<ID> <ID> ;", m.getParser().getRuleIndex("s"));
    }
    catch (NoViableAltException e) {
      failed = true;
    }
    assertTrue(failed);
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      rawGenerateAndBuildRecognizer("X2.g4", grammar, "X2Parser", "X2Lexer", false);
    assertTrue(ok);

    ParseTreePatternMatcher m = getPatternMatcher("X2");

    ParseTreePattern t = m.compile("<ID> = <expr> ;", m.getParser().getRuleIndex("s"));
    String results = t.getPatternTree().toStringTree(m.getParser());
    String expected = "(s <ID> = (expr <expr>) ;)";
    assertEquals(expected, results);
  }
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      rawGenerateAndBuildRecognizer("X2.g4", grammar, "X2Parser", "X2Lexer", false);
    assertTrue(ok);

    ParseTreePatternMatcher m =  getPatternMatcher("X2");

    ParseTreePattern t = m.compile("<ID> = <ID> ;", m.getParser().getRuleIndex("s"));
    String results = t.getPatternTree().toStringTree(m.getParser());
    String expected = "(s <ID> = <ID> ;)";
    assertEquals(expected, results);
  }
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