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// Generated from com/api/jsonata4java/expressions/path/generated/PathExpressionParser.g4 by ANTLR 4.8
package com.api.jsonata4java.expressions.path.generated;
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 PathExpressionParser extends Parser {
	static { RuntimeMetaData.checkVersion("4.8", RuntimeMetaData.VERSION); }

	protected static final DFA[] _decisionToDFA;
	protected static final PredictionContextCache _sharedContextCache =
		new PredictionContextCache();
	public static final int
		WS=1, NON_BACK_QUOTED_ID=2, BACK_QUOTED_ID=3, ARR_OPEN=4, ARR_CLOSE=5, 
		PATH_DELIM=6, DOLLAR_PREFIX=7, NUMBER=8, BACK_QUOTE_CONTENT=9, BACK_QUOTE_EXIT=10;
	public static final int
		RULE_expr = 0, RULE_id = 1, RULE_array_index = 2, RULE_function_path = 3;
	private static String[] makeRuleNames() {
		return new String[] {
			"expr", "id", "array_index", "function_path"
		};
	}
	public static final String[] ruleNames = makeRuleNames();

	private static String[] makeLiteralNames() {
		return new String[] {
			null, null, null, null, "'['", "']'", "'.'", "'$'"
		};
	}
	private static final String[] _LITERAL_NAMES = makeLiteralNames();
	private static String[] makeSymbolicNames() {
		return new String[] {
			null, "WS", "NON_BACK_QUOTED_ID", "BACK_QUOTED_ID", "ARR_OPEN", "ARR_CLOSE", 
			"PATH_DELIM", "DOLLAR_PREFIX", "NUMBER", "BACK_QUOTE_CONTENT", "BACK_QUOTE_EXIT"
		};
	}
	private static final String[] _SYMBOLIC_NAMES = makeSymbolicNames();
	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] = "";
			}
		}
	}

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

	@Override

	public Vocabulary getVocabulary() {
		return VOCABULARY;
	}

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

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

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

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

	public PathExpressionParser(TokenStream input) {
		super(input);
		_interp = new ParserATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
	}

	public static class ExprContext extends ParserRuleContext {
		public ExprContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_expr; }
	 
		public ExprContext() { }
		public void copyFrom(ExprContext ctx) {
			super.copyFrom(ctx);
		}
	}
	public static class PathContext extends ExprContext {
		public ExprContext rhs;
		public IdContext id() {
			return getRuleContext(IdContext.class,0);
		}
		public TerminalNode EOF() { return getToken(PathExpressionParser.EOF, 0); }
		public List array_index() {
			return getRuleContexts(Array_indexContext.class);
		}
		public Array_indexContext array_index(int i) {
			return getRuleContext(Array_indexContext.class,i);
		}
		public TerminalNode PATH_DELIM() { return getToken(PathExpressionParser.PATH_DELIM, 0); }
		public Function_pathContext function_path() {
			return getRuleContext(Function_pathContext.class,0);
		}
		public ExprContext expr() {
			return getRuleContext(ExprContext.class,0);
		}
		public PathContext(ExprContext ctx) { copyFrom(ctx); }
		@Override
		public void enterRule(ParseTreeListener listener) {
			if ( listener instanceof PathExpressionParserListener ) ((PathExpressionParserListener)listener).enterPath(this);
		}
		@Override
		public void exitRule(ParseTreeListener listener) {
			if ( listener instanceof PathExpressionParserListener ) ((PathExpressionParserListener)listener).exitPath(this);
		}
		@Override
		public  T accept(ParseTreeVisitor visitor) {
			if ( visitor instanceof PathExpressionParserVisitor ) return ((PathExpressionParserVisitor)visitor).visitPath(this);
			else return visitor.visitChildren(this);
		}
	}

	public final ExprContext expr() throws RecognitionException {
		ExprContext _localctx = new ExprContext(_ctx, getState());
		enterRule(_localctx, 0, RULE_expr);
		int _la;
		try {
			_localctx = new PathContext(_localctx);
			enterOuterAlt(_localctx, 1);
			{
			setState(8);
			id();
			setState(12);
			_errHandler.sync(this);
			_la = _input.LA(1);
			while (_la==ARR_OPEN) {
				{
				{
				setState(9);
				array_index();
				}
				}
				setState(14);
				_errHandler.sync(this);
				_la = _input.LA(1);
			}
			setState(21);
			_errHandler.sync(this);
			switch (_input.LA(1)) {
			case PATH_DELIM:
				{
				{
				setState(15);
				match(PATH_DELIM);
				setState(18);
				_errHandler.sync(this);
				switch (_input.LA(1)) {
				case DOLLAR_PREFIX:
					{
					setState(16);
					function_path();
					}
					break;
				case NON_BACK_QUOTED_ID:
				case BACK_QUOTED_ID:
					{
					setState(17);
					((PathContext)_localctx).rhs = expr();
					}
					break;
				default:
					throw new NoViableAltException(this);
				}
				}
				}
				break;
			case EOF:
				{
				setState(20);
				match(EOF);
				}
				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 IdContext extends ParserRuleContext {
		public Token txt;
		public TerminalNode BACK_QUOTED_ID() { return getToken(PathExpressionParser.BACK_QUOTED_ID, 0); }
		public TerminalNode BACK_QUOTE_EXIT() { return getToken(PathExpressionParser.BACK_QUOTE_EXIT, 0); }
		public TerminalNode BACK_QUOTE_CONTENT() { return getToken(PathExpressionParser.BACK_QUOTE_CONTENT, 0); }
		public TerminalNode NON_BACK_QUOTED_ID() { return getToken(PathExpressionParser.NON_BACK_QUOTED_ID, 0); }
		public IdContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_id; }
		@Override
		public void enterRule(ParseTreeListener listener) {
			if ( listener instanceof PathExpressionParserListener ) ((PathExpressionParserListener)listener).enterId(this);
		}
		@Override
		public void exitRule(ParseTreeListener listener) {
			if ( listener instanceof PathExpressionParserListener ) ((PathExpressionParserListener)listener).exitId(this);
		}
		@Override
		public  T accept(ParseTreeVisitor visitor) {
			if ( visitor instanceof PathExpressionParserVisitor ) return ((PathExpressionParserVisitor)visitor).visitId(this);
			else return visitor.visitChildren(this);
		}
	}

	public final IdContext id() throws RecognitionException {
		IdContext _localctx = new IdContext(_ctx, getState());
		enterRule(_localctx, 2, RULE_id);
		try {
			setState(27);
			_errHandler.sync(this);
			switch (_input.LA(1)) {
			case BACK_QUOTED_ID:
				enterOuterAlt(_localctx, 1);
				{
				setState(23);
				match(BACK_QUOTED_ID);
				{
				setState(24);
				((IdContext)_localctx).txt = match(BACK_QUOTE_CONTENT);
				}
				setState(25);
				match(BACK_QUOTE_EXIT);
				}
				break;
			case NON_BACK_QUOTED_ID:
				enterOuterAlt(_localctx, 2);
				{
				setState(26);
				((IdContext)_localctx).txt = match(NON_BACK_QUOTED_ID);
				}
				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 Array_indexContext extends ParserRuleContext {
		public TerminalNode ARR_OPEN() { return getToken(PathExpressionParser.ARR_OPEN, 0); }
		public TerminalNode ARR_CLOSE() { return getToken(PathExpressionParser.ARR_CLOSE, 0); }
		public TerminalNode NUMBER() { return getToken(PathExpressionParser.NUMBER, 0); }
		public Array_indexContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_array_index; }
		@Override
		public void enterRule(ParseTreeListener listener) {
			if ( listener instanceof PathExpressionParserListener ) ((PathExpressionParserListener)listener).enterArray_index(this);
		}
		@Override
		public void exitRule(ParseTreeListener listener) {
			if ( listener instanceof PathExpressionParserListener ) ((PathExpressionParserListener)listener).exitArray_index(this);
		}
		@Override
		public  T accept(ParseTreeVisitor visitor) {
			if ( visitor instanceof PathExpressionParserVisitor ) return ((PathExpressionParserVisitor)visitor).visitArray_index(this);
			else return visitor.visitChildren(this);
		}
	}

	public final Array_indexContext array_index() throws RecognitionException {
		Array_indexContext _localctx = new Array_indexContext(_ctx, getState());
		enterRule(_localctx, 4, RULE_array_index);
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(29);
			match(ARR_OPEN);
			{
			setState(30);
			match(NUMBER);
			}
			setState(31);
			match(ARR_CLOSE);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static class Function_pathContext extends ParserRuleContext {
		public TerminalNode DOLLAR_PREFIX() { return getToken(PathExpressionParser.DOLLAR_PREFIX, 0); }
		public TerminalNode NON_BACK_QUOTED_ID() { return getToken(PathExpressionParser.NON_BACK_QUOTED_ID, 0); }
		public Function_pathContext(ParserRuleContext parent, int invokingState) {
			super(parent, invokingState);
		}
		@Override public int getRuleIndex() { return RULE_function_path; }
		@Override
		public void enterRule(ParseTreeListener listener) {
			if ( listener instanceof PathExpressionParserListener ) ((PathExpressionParserListener)listener).enterFunction_path(this);
		}
		@Override
		public void exitRule(ParseTreeListener listener) {
			if ( listener instanceof PathExpressionParserListener ) ((PathExpressionParserListener)listener).exitFunction_path(this);
		}
		@Override
		public  T accept(ParseTreeVisitor visitor) {
			if ( visitor instanceof PathExpressionParserVisitor ) return ((PathExpressionParserVisitor)visitor).visitFunction_path(this);
			else return visitor.visitChildren(this);
		}
	}

	public final Function_pathContext function_path() throws RecognitionException {
		Function_pathContext _localctx = new Function_pathContext(_ctx, getState());
		enterRule(_localctx, 6, RULE_function_path);
		try {
			enterOuterAlt(_localctx, 1);
			{
			setState(33);
			match(DOLLAR_PREFIX);
			setState(34);
			match(NON_BACK_QUOTED_ID);
			}
		}
		catch (RecognitionException re) {
			_localctx.exception = re;
			_errHandler.reportError(this, re);
			_errHandler.recover(this, re);
		}
		finally {
			exitRule();
		}
		return _localctx;
	}

	public static final String _serializedATN =
		"\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\3\f\'\4\2\t\2\4\3\t"+
		"\3\4\4\t\4\4\5\t\5\3\2\3\2\7\2\r\n\2\f\2\16\2\20\13\2\3\2\3\2\3\2\5\2"+
		"\25\n\2\3\2\5\2\30\n\2\3\3\3\3\3\3\3\3\5\3\36\n\3\3\4\3\4\3\4\3\4\3\5"+
		"\3\5\3\5\3\5\2\2\6\2\4\6\b\2\2\2&\2\n\3\2\2\2\4\35\3\2\2\2\6\37\3\2\2"+
		"\2\b#\3\2\2\2\n\16\5\4\3\2\13\r\5\6\4\2\f\13\3\2\2\2\r\20\3\2\2\2\16\f"+
		"\3\2\2\2\16\17\3\2\2\2\17\27\3\2\2\2\20\16\3\2\2\2\21\24\7\b\2\2\22\25"+
		"\5\b\5\2\23\25\5\2\2\2\24\22\3\2\2\2\24\23\3\2\2\2\25\30\3\2\2\2\26\30"+
		"\7\2\2\3\27\21\3\2\2\2\27\26\3\2\2\2\30\3\3\2\2\2\31\32\7\5\2\2\32\33"+
		"\7\13\2\2\33\36\7\f\2\2\34\36\7\4\2\2\35\31\3\2\2\2\35\34\3\2\2\2\36\5"+
		"\3\2\2\2\37 \7\6\2\2 !\7\n\2\2!\"\7\7\2\2\"\7\3\2\2\2#$\7\t\2\2$%\7\4"+
		"\2\2%\t\3\2\2\2\6\16\24\27\35";
	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);
		}
	}
}




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