QLParser.java

// Generated from E:/development/Steven/src/test/resources/antlr/grammars\QL.g4 by ANTLR 4.5
package edu.parser.QL.antlrGenerated;
import org.antlr.v4.runtime.atn.*;
import org.antlr.v4.runtime.dfa.DFA;
import org.antlr.v4.runtime.*;
import org.antlr.v4.runtime.misc.*;
import org.antlr.v4.runtime.tree.*;
import java.util.List;
import java.util.Iterator;
import java.util.ArrayList;

@SuppressWarnings({"all", "warnings", "unchecked", "unused", "cast"})
public class QLParser extends Parser {
	static { RuntimeMetaData.checkVersion("4.5", RuntimeMetaData.VERSION); }

	protected static final DFA[] _decisionToDFA;
	protected static final PredictionContextCache _sharedContextCache =
		new PredictionContextCache();
	public static final int
		T__0=1, T__1=2, T__2=3, T__3=4, T__4=5, T__5=6, T__6=7, T__7=8, T__8=9, 
		T__9=10, T__10=11, T__11=12, T__12=13, T__13=14, T__14=15, T__15=16, T__16=17, 
		T__17=18, T__18=19, T__19=20, T__20=21, T__21=22, UPPERCASE=23, LOWERCASE=24, 
		NUMBERS=25, STRING=26, COMMENT_LINE=27, WS=28;
	public static final int
		RULE_form = 0, RULE_statement = 1, RULE_if_statement = 2, RULE_else_clause = 3, 
		RULE_expression = 4, RULE_booleanExpression = 5, RULE_identifier = 6, 
		RULE_question = 7, RULE_question_expression = 8, RULE_question_type = 9, 
		RULE_question_label = 10;
	public static final String[] ruleNames = {
		"form", "statement", "if_statement", "else_clause", "expression", "booleanExpression", 
		"identifier", "question", "question_expression", "question_type", "question_label"
	};

	private static final String[] _LITERAL_NAMES = {
		null, "'form'", "'{'", "'}'", "'if'", "'('", "')'", "'else'", "'!'", "'*'", 
		"'/'", "'+'", "'-'", "'>'", "'<'", "'<='", "'>='", "'=='", "'!='", "'&&'", 
		"'||'", "'true'", "'false'"
	};
	private static final String[] _SYMBOLIC_NAMES = {
		null, null, null, null, null, null, null, null, null, null, null, null, 
		null, null, null, null, null, null, null, null, null, null, null, "UPPERCASE", 
		"LOWERCASE", "NUMBERS", "STRING", "COMMENT_LINE", "WS"
	};
	public static final Vocabulary VOCABULARY = new VocabularyImpl(_LITERAL_NAMES, _SYMBOLIC_NAMES);

	/**
	 * @deprecated Use {@link #VOCABULARY} instead.
	 */
	@Deprecated
	public static final String[] tokenNames;
	static {
		tokenNames = new String[_SYMBOLIC_NAMES.length];
		for (int i = 0; i < tokenNames.length; i++) {
			tokenNames[i] = VOCABULARY.getLiteralName(i);
			if (tokenNames[i] == null) {
				tokenNames[i] = VOCABULARY.getSymbolicName(i);
			}

			if (tokenNames[i] == null) {
				tokenNames[i] = "<INVALID>";
			}
		}
	}

	@Override
	@Deprecated
	public String[] getTokenNames() {
		return tokenNames;
	}

	@Override
	@NotNull
	public Vocabulary getVocabulary() {
		return VOCABULARY;
	}

	@Override
	public String getGrammarFileName() { return "QL.g4"; }

	@Override
	public String[] getRuleNames() { return ruleNames; }

	@Override
	public String getSerializedATN() { return _serializedATN; }

	@Override
	public ATN getATN() { return _ATN; }

	public QLParser(TokenStream input) {
		super(input);
		_interp = new ParserATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
	}
	public static class FormContext extends ParserRuleContext {
		public IdentifierContext identifier() {
			return getRuleContext(IdentifierContext.class,0);
		}
		public List<StatementContext> statement() {
			return getRuleContexts(StatementContext.class);
		}
		public StatementContext statement(int i) {
			return getRuleContext(StatementContext.class,i);
		}
		public FormContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_form; }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitForm(this);
			else return visitor.visitChildren(this);
		}
	}

	public final FormContext form() throws RecognitionException {
		FormContext _localctx = new FormContext(_ctx, getState());
		enterRule(_localctx, 0, RULE_form);
		int _la;
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(22); 
			match(T__0);
			setState(23); 
			identifier();
			setState(24); 
			match(T__1);
			setState(26); 
			_errHandler.sync(this);
			_la = _input.LA(1);
			do {
				{
				{
				setState(25); 
				statement();
				}
				}
				setState(28); 
				_errHandler.sync(this);
				_la = _input.LA(1);
			} while ( (((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << T__3) | (1L << UPPERCASE) | (1L << LOWERCASE) | (1L << NUMBERS))) != 0) );
			setState(30); 
			match(T__2);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static class StatementContext extends ParserRuleContext {
		public StatementContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_statement; }
	 
		public StatementContext() { }
		public void copyFrom(StatementContext ctx) {
			super.copyFrom(ctx);
		}
	}
	public static class If_statementLabelContext extends StatementContext {
		public If_statementContext if_statement() {
			return getRuleContext(If_statementContext.class,0);
		}
		public If_statementLabelContext(StatementContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitIf_statementLabel(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class QuestionLabelContext extends StatementContext {
		public QuestionContext question() {
			return getRuleContext(QuestionContext.class,0);
		}
		public QuestionLabelContext(StatementContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitQuestionLabel(this);
			else return visitor.visitChildren(this);
		}
	}

	public final StatementContext statement() throws RecognitionException {
		StatementContext _localctx = new StatementContext(_ctx, getState());
		enterRule(_localctx, 2, RULE_statement);
		try {
			setState(34);
			switch (_input.LA(1)) {
			case UPPERCASE:
			case LOWERCASE:
			case NUMBERS:
				_localctx = new QuestionLabelContext(_localctx);
				enterOuterAlt(_localctx, 1);
				{
				setState(32); 
				question();
				}
				break;
			case T__3:
				_localctx = new If_statementLabelContext(_localctx);
				enterOuterAlt(_localctx, 2);
				{
				setState(33); 
				if_statement();
				}
				break;
			default:
				throw new NoViableAltException(this);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static class If_statementContext extends ParserRuleContext {
		public ExpressionContext expression() {
			return getRuleContext(ExpressionContext.class,0);
		}
		public List<StatementContext> statement() {
			return getRuleContexts(StatementContext.class);
		}
		public StatementContext statement(int i) {
			return getRuleContext(StatementContext.class,i);
		}
		public Else_clauseContext else_clause() {
			return getRuleContext(Else_clauseContext.class,0);
		}
		public If_statementContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_if_statement; }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitIf_statement(this);
			else return visitor.visitChildren(this);
		}
	}

	public final If_statementContext if_statement() throws RecognitionException {
		If_statementContext _localctx = new If_statementContext(_ctx, getState());
		enterRule(_localctx, 4, RULE_if_statement);
		int _la;
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(36); 
			match(T__3);
			setState(37); 
			match(T__4);
			setState(38); 
			expression(0);
			setState(39); 
			match(T__5);
			setState(40); 
			match(T__1);
			setState(42); 
			_errHandler.sync(this);
			_la = _input.LA(1);
			do {
				{
				{
				setState(41); 
				statement();
				}
				}
				setState(44); 
				_errHandler.sync(this);
				_la = _input.LA(1);
			} while ( (((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << T__3) | (1L << UPPERCASE) | (1L << LOWERCASE) | (1L << NUMBERS))) != 0) );
			setState(46); 
			match(T__2);
			setState(48);
			_la = _input.LA(1);
			if (_la==T__6) {
				{
				setState(47); 
				else_clause();
				}
			}

			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static class Else_clauseContext extends ParserRuleContext {
		public List<StatementContext> statement() {
			return getRuleContexts(StatementContext.class);
		}
		public StatementContext statement(int i) {
			return getRuleContext(StatementContext.class,i);
		}
		public Else_clauseContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_else_clause; }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitElse_clause(this);
			else return visitor.visitChildren(this);
		}
	}

	public final Else_clauseContext else_clause() throws RecognitionException {
		Else_clauseContext _localctx = new Else_clauseContext(_ctx, getState());
		enterRule(_localctx, 6, RULE_else_clause);
		int _la;
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(50); 
			match(T__6);
			setState(51); 
			match(T__1);
			setState(53); 
			_errHandler.sync(this);
			_la = _input.LA(1);
			do {
				{
				{
				setState(52); 
				statement();
				}
				}
				setState(55); 
				_errHandler.sync(this);
				_la = _input.LA(1);
			} while ( (((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << T__3) | (1L << UPPERCASE) | (1L << LOWERCASE) | (1L << NUMBERS))) != 0) );
			setState(57); 
			match(T__2);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static class ExpressionContext extends ParserRuleContext {
		public ExpressionContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_expression; }
	 
		public ExpressionContext() { }
		public void copyFrom(ExpressionContext ctx) {
			super.copyFrom(ctx);
		}
	}
	public static class GreaterOrEqualContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public GreaterOrEqualContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitGreaterOrEqual(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class NumbersLabelContext extends ExpressionContext {
		public Token numbers;
		public TerminalNode NUMBERS() { return getToken(QLParser.NUMBERS, 0); }
		public NumbersLabelContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitNumbersLabel(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class OrContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public OrContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitOr(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class LessOrEqualContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public LessOrEqualContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitLessOrEqual(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class IdentifierLabelContext extends ExpressionContext {
		public IdentifierContext identifier() {
			return getRuleContext(IdentifierContext.class,0);
		}
		public IdentifierLabelContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitIdentifierLabel(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class SubtractionContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public SubtractionContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitSubtraction(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class NotEqualContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public NotEqualContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitNotEqual(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class ParenthesisContext extends ExpressionContext {
		public Token leftParenthesis;
		public Token rightParenthesis;
		public ExpressionContext expression() {
			return getRuleContext(ExpressionContext.class,0);
		}
		public ParenthesisContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitParenthesis(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class DivisionContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public DivisionContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitDivision(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class EqualContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public EqualContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitEqual(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class NegationLabelContext extends ExpressionContext {
		public ExpressionContext expression() {
			return getRuleContext(ExpressionContext.class,0);
		}
		public NegationLabelContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitNegationLabel(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class AndContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public AndContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitAnd(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class LessThanContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public LessThanContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitLessThan(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class MultiplicationContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public MultiplicationContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitMultiplication(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class BooleanExpressionLabelContext extends ExpressionContext {
		public BooleanExpressionContext booleanExpression() {
			return getRuleContext(BooleanExpressionContext.class,0);
		}
		public BooleanExpressionLabelContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitBooleanExpressionLabel(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class AdditionContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public AdditionContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitAddition(this);
			else return visitor.visitChildren(this);
		}
	}
	public static class GreaterThanContext extends ExpressionContext {
		public ExpressionContext left;
		public ExpressionContext right;
		public List<ExpressionContext> expression() {
			return getRuleContexts(ExpressionContext.class);
		}
		public ExpressionContext expression(int i) {
			return getRuleContext(ExpressionContext.class,i);
		}
		public GreaterThanContext(ExpressionContext ctx) { copyFrom(ctx); }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitGreaterThan(this);
			else return visitor.visitChildren(this);
		}
	}

	public final ExpressionContext expression() throws RecognitionException {
		return expression(0);
	}

	private ExpressionContext expression(int _p) throws RecognitionException {
		ParserRuleContext _parentctx = _ctx;
		int _parentState = getState();
		ExpressionContext _localctx = new ExpressionContext(_ctx, _parentState);
		ExpressionContext _prevctx = _localctx;
		int _startState = 8;
		enterRecursionRule(_localctx, 8, RULE_expression, _p);
		try {
			int _alt;
			enterOuterAlt(_localctx, 1);
			{
			setState(69);
			switch ( getInterpreter().adaptivePredict(_input,5,_ctx) ) {
			case 1:
				{
				_localctx = new NegationLabelContext(_localctx);
				_ctx = _localctx;
				_prevctx = _localctx;

				setState(60); 
				match(T__7);
				setState(61); 
				expression(16);
				}
				break;
			case 2:
				{
				_localctx = new ParenthesisContext(_localctx);
				_ctx = _localctx;
				_prevctx = _localctx;
				setState(62); 
				((ParenthesisContext)_localctx).leftParenthesis = match(T__4);
				setState(63); 
				expression(0);
				setState(64); 
				((ParenthesisContext)_localctx).rightParenthesis = match(T__5);
				}
				break;
			case 3:
				{
				_localctx = new NumbersLabelContext(_localctx);
				_ctx = _localctx;
				_prevctx = _localctx;
				setState(66); 
				((NumbersLabelContext)_localctx).numbers = match(NUMBERS);
				}
				break;
			case 4:
				{
				_localctx = new IdentifierLabelContext(_localctx);
				_ctx = _localctx;
				_prevctx = _localctx;
				setState(67); 
				identifier();
				}
				break;
			case 5:
				{
				_localctx = new BooleanExpressionLabelContext(_localctx);
				_ctx = _localctx;
				_prevctx = _localctx;
				setState(68); 
				booleanExpression();
				}
				break;
			}
			_ctx.stop = _input.LT(-1);
			setState(109);
			_errHandler.sync(this);
			_alt = getInterpreter().adaptivePredict(_input,7,_ctx);
			while ( _alt!=2 && _alt!=org.antlr.v4.runtime.atn.ATN.INVALID_ALT_NUMBER ) {
				if ( _alt==1 ) {
					if ( _parseListeners!=null ) triggerExitRuleEvent();
					_prevctx = _localctx;
					{
					setState(107);
					switch ( getInterpreter().adaptivePredict(_input,6,_ctx) ) {
					case 1:
						{
						_localctx = new MultiplicationContext(new ExpressionContext(_parentctx, _parentState));
						((MultiplicationContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(71);
						if (!(precpred(_ctx, 15))) throw new FailedPredicateException(this, "precpred(_ctx, 15)");
						setState(72); 
						match(T__8);
						setState(73); 
						((MultiplicationContext)_localctx).right = expression(16);
						}
						break;
					case 2:
						{
						_localctx = new DivisionContext(new ExpressionContext(_parentctx, _parentState));
						((DivisionContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(74);
						if (!(precpred(_ctx, 14))) throw new FailedPredicateException(this, "precpred(_ctx, 14)");
						setState(75); 
						match(T__9);
						setState(76); 
						((DivisionContext)_localctx).right = expression(15);
						}
						break;
					case 3:
						{
						_localctx = new AdditionContext(new ExpressionContext(_parentctx, _parentState));
						((AdditionContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(77);
						if (!(precpred(_ctx, 13))) throw new FailedPredicateException(this, "precpred(_ctx, 13)");
						setState(78); 
						match(T__10);
						setState(79); 
						((AdditionContext)_localctx).right = expression(14);
						}
						break;
					case 4:
						{
						_localctx = new SubtractionContext(new ExpressionContext(_parentctx, _parentState));
						((SubtractionContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(80);
						if (!(precpred(_ctx, 12))) throw new FailedPredicateException(this, "precpred(_ctx, 12)");
						setState(81); 
						match(T__11);
						setState(82); 
						((SubtractionContext)_localctx).right = expression(13);
						}
						break;
					case 5:
						{
						_localctx = new GreaterThanContext(new ExpressionContext(_parentctx, _parentState));
						((GreaterThanContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(83);
						if (!(precpred(_ctx, 11))) throw new FailedPredicateException(this, "precpred(_ctx, 11)");
						setState(84); 
						match(T__12);
						setState(85); 
						((GreaterThanContext)_localctx).right = expression(12);
						}
						break;
					case 6:
						{
						_localctx = new LessThanContext(new ExpressionContext(_parentctx, _parentState));
						((LessThanContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(86);
						if (!(precpred(_ctx, 10))) throw new FailedPredicateException(this, "precpred(_ctx, 10)");
						setState(87); 
						match(T__13);
						setState(88); 
						((LessThanContext)_localctx).right = expression(11);
						}
						break;
					case 7:
						{
						_localctx = new LessOrEqualContext(new ExpressionContext(_parentctx, _parentState));
						((LessOrEqualContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(89);
						if (!(precpred(_ctx, 9))) throw new FailedPredicateException(this, "precpred(_ctx, 9)");
						setState(90); 
						match(T__14);
						setState(91); 
						((LessOrEqualContext)_localctx).right = expression(10);
						}
						break;
					case 8:
						{
						_localctx = new GreaterOrEqualContext(new ExpressionContext(_parentctx, _parentState));
						((GreaterOrEqualContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(92);
						if (!(precpred(_ctx, 8))) throw new FailedPredicateException(this, "precpred(_ctx, 8)");
						setState(93); 
						match(T__15);
						setState(94); 
						((GreaterOrEqualContext)_localctx).right = expression(9);
						}
						break;
					case 9:
						{
						_localctx = new EqualContext(new ExpressionContext(_parentctx, _parentState));
						((EqualContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(95);
						if (!(precpred(_ctx, 7))) throw new FailedPredicateException(this, "precpred(_ctx, 7)");
						setState(96); 
						match(T__16);
						setState(97); 
						((EqualContext)_localctx).right = expression(8);
						}
						break;
					case 10:
						{
						_localctx = new NotEqualContext(new ExpressionContext(_parentctx, _parentState));
						((NotEqualContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(98);
						if (!(precpred(_ctx, 6))) throw new FailedPredicateException(this, "precpred(_ctx, 6)");
						setState(99); 
						match(T__17);
						setState(100); 
						((NotEqualContext)_localctx).right = expression(7);
						}
						break;
					case 11:
						{
						_localctx = new AndContext(new ExpressionContext(_parentctx, _parentState));
						((AndContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(101);
						if (!(precpred(_ctx, 5))) throw new FailedPredicateException(this, "precpred(_ctx, 5)");
						setState(102); 
						match(T__18);
						setState(103); 
						((AndContext)_localctx).right = expression(6);
						}
						break;
					case 12:
						{
						_localctx = new OrContext(new ExpressionContext(_parentctx, _parentState));
						((OrContext)_localctx).left = _prevctx;
						pushNewRecursionContext(_localctx, _startState, RULE_expression);
						setState(104);
						if (!(precpred(_ctx, 4))) throw new FailedPredicateException(this, "precpred(_ctx, 4)");
						setState(105); 
						match(T__19);
						setState(106); 
						((OrContext)_localctx).right = expression(5);
						}
						break;
					}
					} 
				}
				setState(111);
				_errHandler.sync(this);
				_alt = getInterpreter().adaptivePredict(_input,7,_ctx);
			}
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			unrollRecursionContexts(_parentctx);
		}
		return _localctx;
	}

	public static class BooleanExpressionContext extends ParserRuleContext {
		public Token isTrue;
		public Token isFalse;
		public BooleanExpressionContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_booleanExpression; }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitBooleanExpression(this);
			else return visitor.visitChildren(this);
		}
	}

	public final BooleanExpressionContext booleanExpression() throws RecognitionException {
		BooleanExpressionContext _localctx = new BooleanExpressionContext(_ctx, getState());
		enterRule(_localctx, 10, RULE_booleanExpression);
		try {
			setState(114);
			switch (_input.LA(1)) {
			case T__20:
				enterOuterAlt(_localctx, 1);
				{
				setState(112); 
				((BooleanExpressionContext)_localctx).isTrue = match(T__20);
				}
				break;
			case T__21:
				enterOuterAlt(_localctx, 2);
				{
				setState(113); 
				((BooleanExpressionContext)_localctx).isFalse = match(T__21);
				}
				break;
			default:
				throw new NoViableAltException(this);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static class IdentifierContext extends ParserRuleContext {
		public List<TerminalNode> UPPERCASE() { return getTokens(QLParser.UPPERCASE); }
		public TerminalNode UPPERCASE(int i) {
			return getToken(QLParser.UPPERCASE, i);
		}
		public List<TerminalNode> LOWERCASE() { return getTokens(QLParser.LOWERCASE); }
		public TerminalNode LOWERCASE(int i) {
			return getToken(QLParser.LOWERCASE, i);
		}
		public List<TerminalNode> NUMBERS() { return getTokens(QLParser.NUMBERS); }
		public TerminalNode NUMBERS(int i) {
			return getToken(QLParser.NUMBERS, i);
		}
		public IdentifierContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_identifier; }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitIdentifier(this);
			else return visitor.visitChildren(this);
		}
	}

	public final IdentifierContext identifier() throws RecognitionException {
		IdentifierContext _localctx = new IdentifierContext(_ctx, getState());
		enterRule(_localctx, 12, RULE_identifier);
		int _la;
		try {
			int _alt;
			enterOuterAlt(_localctx, 1);
			{
			setState(117); 
			_errHandler.sync(this);
			_alt = 1;
			do {
				switch (_alt) {
				case 1:
					{
					{
					setState(116);
					_la = _input.LA(1);
					if ( !((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << UPPERCASE) | (1L << LOWERCASE) | (1L << NUMBERS))) != 0)) ) {
					_errHandler.recoverInline(this);
					}
					consume();
					}
					}
					break;
				default:
					throw new NoViableAltException(this);
				}
				setState(119); 
				_errHandler.sync(this);
				_alt = getInterpreter().adaptivePredict(_input,9,_ctx);
			} while ( _alt!=2 && _alt!=org.antlr.v4.runtime.atn.ATN.INVALID_ALT_NUMBER );
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static class QuestionContext extends ParserRuleContext {
		public IdentifierContext identifier() {
			return getRuleContext(IdentifierContext.class,0);
		}
		public Question_typeContext question_type() {
			return getRuleContext(Question_typeContext.class,0);
		}
		public Question_labelContext question_label() {
			return getRuleContext(Question_labelContext.class,0);
		}
		public Question_expressionContext question_expression() {
			return getRuleContext(Question_expressionContext.class,0);
		}
		public QuestionContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_question; }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitQuestion(this);
			else return visitor.visitChildren(this);
		}
	}

	public final QuestionContext question() throws RecognitionException {
		QuestionContext _localctx = new QuestionContext(_ctx, getState());
		enterRule(_localctx, 14, RULE_question);
		int _la;
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(121); 
			identifier();
			setState(122); 
			question_type();
			setState(123); 
			question_label();
			setState(125);
			_la = _input.LA(1);
			if (_la==T__4) {
				{
				setState(124); 
				question_expression();
				}
			}

			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static class Question_expressionContext extends ParserRuleContext {
		public ExpressionContext expression() {
			return getRuleContext(ExpressionContext.class,0);
		}
		public Question_expressionContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_question_expression; }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitQuestion_expression(this);
			else return visitor.visitChildren(this);
		}
	}

	public final Question_expressionContext question_expression() throws RecognitionException {
		Question_expressionContext _localctx = new Question_expressionContext(_ctx, getState());
		enterRule(_localctx, 16, RULE_question_expression);
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(127); 
			match(T__4);
			setState(128); 
			expression(0);
			setState(129); 
			match(T__5);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static class Question_typeContext extends ParserRuleContext {
		public TerminalNode UPPERCASE() { return getToken(QLParser.UPPERCASE, 0); }
		public Question_typeContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_question_type; }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitQuestion_type(this);
			else return visitor.visitChildren(this);
		}
	}

	public final Question_typeContext question_type() throws RecognitionException {
		Question_typeContext _localctx = new Question_typeContext(_ctx, getState());
		enterRule(_localctx, 18, RULE_question_type);
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(131); 
			match(UPPERCASE);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static class Question_labelContext extends ParserRuleContext {
		public TerminalNode STRING() { return getToken(QLParser.STRING, 0); }
		public Question_labelContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_question_label; }
		@Override
		public <T> T accept(ParseTreeVisitor<? extends T> visitor) {
			if ( visitor instanceof QLVisitor ) return ((QLVisitor<? extends T>)visitor).visitQuestion_label(this);
			else return visitor.visitChildren(this);
		}
	}

	public final Question_labelContext question_label() throws RecognitionException {
		Question_labelContext _localctx = new Question_labelContext(_ctx, getState());
		enterRule(_localctx, 20, RULE_question_label);
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(133); 
			match(STRING);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public boolean sempred(RuleContext _localctx, int ruleIndex, int predIndex) {
		switch (ruleIndex) {
		case 4: 
			return expression_sempred((ExpressionContext)_localctx, predIndex);
		}
		return true;
	}
	private boolean expression_sempred(ExpressionContext _localctx, int predIndex) {
		switch (predIndex) {
		case 0: 
			return precpred(_ctx, 15);
		case 1: 
			return precpred(_ctx, 14);
		case 2: 
			return precpred(_ctx, 13);
		case 3: 
			return precpred(_ctx, 12);
		case 4: 
			return precpred(_ctx, 11);
		case 5: 
			return precpred(_ctx, 10);
		case 6: 
			return precpred(_ctx, 9);
		case 7: 
			return precpred(_ctx, 8);
		case 8: 
			return precpred(_ctx, 7);
		case 9: 
			return precpred(_ctx, 6);
		case 10: 
			return precpred(_ctx, 5);
		case 11: 
			return precpred(_ctx, 4);
		}
		return true;
	}

	public static final String _serializedATN =
		"\3\u0430\ud6d1\u8206\uad2d\u4417\uaef1\u8d80\uaadd\3\36\u008a\4\2\t\2"+
		"\4\3\t\3\4\4\t\4\4\5\t\5\4\6\t\6\4\7\t\7\4\b\t\b\4\t\t\t\4\n\t\n\4\13"+
		"\t\13\4\f\t\f\3\2\3\2\3\2\3\2\6\2\35\n\2\r\2\16\2\36\3\2\3\2\3\3\3\3\5"+
		"\3%\n\3\3\4\3\4\3\4\3\4\3\4\3\4\6\4-\n\4\r\4\16\4.\3\4\3\4\5\4\63\n\4"+
		"\3\5\3\5\3\5\6\58\n\5\r\5\16\59\3\5\3\5\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3"+
		"\6\3\6\3\6\5\6H\n\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3"+
		"\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6\3\6"+
		"\3\6\3\6\3\6\3\6\3\6\3\6\7\6n\n\6\f\6\16\6q\13\6\3\7\3\7\5\7u\n\7\3\b"+
		"\6\bx\n\b\r\b\16\by\3\t\3\t\3\t\3\t\5\t\u0080\n\t\3\n\3\n\3\n\3\n\3\13"+
		"\3\13\3\f\3\f\3\f\2\3\n\r\2\4\6\b\n\f\16\20\22\24\26\2\3\3\2\31\33\u0096"+
		"\2\30\3\2\2\2\4$\3\2\2\2\6&\3\2\2\2\b\64\3\2\2\2\nG\3\2\2\2\ft\3\2\2\2"+
		"\16w\3\2\2\2\20{\3\2\2\2\22\u0081\3\2\2\2\24\u0085\3\2\2\2\26\u0087\3"+
		"\2\2\2\30\31\7\3\2\2\31\32\5\16\b\2\32\34\7\4\2\2\33\35\5\4\3\2\34\33"+
		"\3\2\2\2\35\36\3\2\2\2\36\34\3\2\2\2\36\37\3\2\2\2\37 \3\2\2\2 !\7\5\2"+
		"\2!\3\3\2\2\2\"%\5\20\t\2#%\5\6\4\2$\"\3\2\2\2$#\3\2\2\2%\5\3\2\2\2&\'"+
		"\7\6\2\2\'(\7\7\2\2()\5\n\6\2)*\7\b\2\2*,\7\4\2\2+-\5\4\3\2,+\3\2\2\2"+
		"-.\3\2\2\2.,\3\2\2\2./\3\2\2\2/\60\3\2\2\2\60\62\7\5\2\2\61\63\5\b\5\2"+
		"\62\61\3\2\2\2\62\63\3\2\2\2\63\7\3\2\2\2\64\65\7\t\2\2\65\67\7\4\2\2"+
		"\668\5\4\3\2\67\66\3\2\2\289\3\2\2\29\67\3\2\2\29:\3\2\2\2:;\3\2\2\2;"+
		"<\7\5\2\2<\t\3\2\2\2=>\b\6\1\2>?\7\n\2\2?H\5\n\6\22@A\7\7\2\2AB\5\n\6"+
		"\2BC\7\b\2\2CH\3\2\2\2DH\7\33\2\2EH\5\16\b\2FH\5\f\7\2G=\3\2\2\2G@\3\2"+
		"\2\2GD\3\2\2\2GE\3\2\2\2GF\3\2\2\2Ho\3\2\2\2IJ\f\21\2\2JK\7\13\2\2Kn\5"+
		"\n\6\22LM\f\20\2\2MN\7\f\2\2Nn\5\n\6\21OP\f\17\2\2PQ\7\r\2\2Qn\5\n\6\20"+
		"RS\f\16\2\2ST\7\16\2\2Tn\5\n\6\17UV\f\r\2\2VW\7\17\2\2Wn\5\n\6\16XY\f"+
		"\f\2\2YZ\7\20\2\2Zn\5\n\6\r[\\\f\13\2\2\\]\7\21\2\2]n\5\n\6\f^_\f\n\2"+
		"\2_`\7\22\2\2`n\5\n\6\13ab\f\t\2\2bc\7\23\2\2cn\5\n\6\nde\f\b\2\2ef\7"+
		"\24\2\2fn\5\n\6\tgh\f\7\2\2hi\7\25\2\2in\5\n\6\bjk\f\6\2\2kl\7\26\2\2"+
		"ln\5\n\6\7mI\3\2\2\2mL\3\2\2\2mO\3\2\2\2mR\3\2\2\2mU\3\2\2\2mX\3\2\2\2"+
		"m[\3\2\2\2m^\3\2\2\2ma\3\2\2\2md\3\2\2\2mg\3\2\2\2mj\3\2\2\2nq\3\2\2\2"+
		"om\3\2\2\2op\3\2\2\2p\13\3\2\2\2qo\3\2\2\2ru\7\27\2\2su\7\30\2\2tr\3\2"+
		"\2\2ts\3\2\2\2u\r\3\2\2\2vx\t\2\2\2wv\3\2\2\2xy\3\2\2\2yw\3\2\2\2yz\3"+
		"\2\2\2z\17\3\2\2\2{|\5\16\b\2|}\5\24\13\2}\177\5\26\f\2~\u0080\5\22\n"+
		"\2\177~\3\2\2\2\177\u0080\3\2\2\2\u0080\21\3\2\2\2\u0081\u0082\7\7\2\2"+
		"\u0082\u0083\5\n\6\2\u0083\u0084\7\b\2\2\u0084\23\3\2\2\2\u0085\u0086"+
		"\7\31\2\2\u0086\25\3\2\2\2\u0087\u0088\7\34\2\2\u0088\27\3\2\2\2\r\36"+
		"$.\629Gmoty\177";
	public static final ATN _ATN =
		new ATNDeserializer().deserialize(_serializedATN.toCharArray());
	static {
		_decisionToDFA = new DFA[_ATN.getNumberOfDecisions()];
		for (int i = 0; i < _ATN.getNumberOfDecisions(); i++) {
			_decisionToDFA[i] = new DFA(_ATN.getDecisionState(i), i);
		}
	}
}