@Test void validRuleOneReplacementBrackets() { final List<Token> tokens = Arrays.asList( new Token(REDUCTION, "reduction", 0), new Token(IDENTIFIER, "test", 0), new Token(COLON, ":", 0), new Token(NUMBER, "1", 0), new Token(DIVIDE, "/", 0), new Token(LEFT_PAREN, "(", 0), new Token(IDENTIFIER, "x", 0), new Token(TIMES, "*", 0), new Token(IDENTIFIER, "x", 0), new Token(RIGHT_PAREN, ")", 0), new Token(ARROW, "->", 0), new Token(LEFT_BRACKET, "[", 0), new Token(IDENTIFIER, "x", 0), new Token(POWER, "^", 0), new Token(MINUS, "-", 0), new Token(NUMBER, "2", 0), new Token(RIGHT_BRACKET, "]", 0), new Token(EOF, "", 0) ); final Parser parser = new Parser(tokens, errors::add); final List<PatternRule> expected = Collections.singletonList(new PatternRule( "test", RuleType.REDUCTION, new DivisionPattern( new NumberPattern(new BigDecimal(1)), new MultiplicationPattern( new SubFunctionPattern("x"), new SubFunctionPattern("x") ) ), new PowerPattern( new SubFunctionPattern("x"), new NegativePattern( new NumberPattern(new BigDecimal(2)) ) ) )); assertEquals(expected, parser.parse()); }
public List<PatternRule> parse() { if (used) { throw new IllegalStateException("Parser.parse can only be called once per instance"); } used = true; return rules(); }
Parser { public List<PatternRule> parse() { if (used) { throw new IllegalStateException("Parser.parse can only be called once per instance"); } used = true; return rules(); } }
Parser { public List<PatternRule> parse() { if (used) { throw new IllegalStateException("Parser.parse can only be called once per instance"); } used = true; return rules(); } Parser(final List<Token> tokens, final Consumer<? super DslError> errorReporter); }
Parser { public List<PatternRule> parse() { if (used) { throw new IllegalStateException("Parser.parse can only be called once per instance"); } used = true; return rules(); } Parser(final List<Token> tokens, final Consumer<? super DslError> errorReporter); List<PatternRule> parse(); Token getSubFunctionIdentifier(final SubFunctionPattern subFunction); }
Parser { public List<PatternRule> parse() { if (used) { throw new IllegalStateException("Parser.parse can only be called once per instance"); } used = true; return rules(); } Parser(final List<Token> tokens, final Consumer<? super DslError> errorReporter); List<PatternRule> parse(); Token getSubFunctionIdentifier(final SubFunctionPattern subFunction);  }