// Generated from Hello.g4 by ANTLR 4.4
package grammar;
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 HelloParser extends Parser {
static { RuntimeMetaData.checkVersion("4.4", RuntimeMetaData.VERSION); }
protected static final DFA[] _decisionToDFA;
protected static final PredictionContextCache _sharedContextCache =
new PredictionContextCache();
public static final int
Bool=1, Int=2, Float=3, IF=4, ELSE=5, AND=6, OR=7, WS=8, TRUE=9, FALSE=10,
ID=11;
public static final String[] tokenNames = {
"<INVALID>", "Bool", "Int", "Float", "'if'", "'else'", "'&&'", "'||'",
"WS", "TRUE", "FALSE", "ID"
};
public static final int
RULE_r = 0, RULE_expr = 1;
public static final String[] ruleNames = {
"r", "expr"
};
@Override
public String getGrammarFileName() { return "Hello.g4"; }
@Override
public String[] getTokenNames() { return tokenNames; }
@Override
public String[] getRuleNames() { return ruleNames; }
@Override
public String getSerializedATN() { return _serializedATN; }
@Override
public ATN getATN() { return _ATN; }
public HelloParser(TokenStream input) {
super(input);
_interp = new ParserATNSimulator(this,_ATN,_decisionToDFA,_sharedContextCache);
}
public static class RContext extends ParserRuleContext {
public TerminalNode Float() { return getToken(HelloParser.Float, 0); }
public RContext(ParserRuleContext parent, int invokingState) {
super(parent, invokingState);
}
@Override public int getRuleIndex() { return RULE_r; }
@Override
public void enterRule(ParseTreeListener listener) {
if ( listener instanceof HelloListener ) ((HelloListener)listener).enterR(this);
}
@Override
public void exitRule(ParseTreeListener listener) {
if ( listener instanceof HelloListener ) ((HelloListener)listener).exitR(this);
}
}
public final RContext r() throws RecognitionException {
RContext _localctx = new RContext(_ctx, getState());
enterRule(_localctx, 0, RULE_r);
try {
enterOuterAlt(_localctx, 1);
{
setState(4); match(Float);
}
}
catch (RecognitionException re) {
_localctx.exception = re;
_errHandler.reportError(this, re);
_errHandler.recover(this, re);
}
finally {
exitRule();
}
return _localctx;
}
public static class ExprContext extends ParserRuleContext {
public List<ExprContext> expr() {
return getRuleContexts(ExprContext.class);
}
public TerminalNode Bool() { return getToken(HelloParser.Bool, 0); }
public ExprContext expr(int i) {
return getRuleContext(ExprContext.class,i);
}
public TerminalNode AND() { return getToken(HelloParser.AND, 0); }
public TerminalNode OR() { return getToken(HelloParser.OR, 0); }
public ExprContext(ParserRuleContext parent, int invokingState) {
super(parent, invokingState);
}
@Override public int getRuleIndex() { return RULE_expr; }
@Override
public void enterRule(ParseTreeListener listener) {
if ( listener instanceof HelloListener ) ((HelloListener)listener).enterExpr(this);
}
@Override
public void exitRule(ParseTreeListener listener) {
if ( listener instanceof HelloListener ) ((HelloListener)listener).exitExpr(this);
}
}
public final ExprContext expr() throws RecognitionException {
return expr(0);
}
private ExprContext expr(int _p) throws RecognitionException {
ParserRuleContext _parentctx = _ctx;
int _parentState = getState();
ExprContext _localctx = new ExprContext(_ctx, _parentState);
ExprContext _prevctx = _localctx;
int _startState = 2;
enterRecursionRule(_localctx, 2, RULE_expr, _p);
try {
int _alt;
enterOuterAlt(_localctx, 1);
{
{
setState(7); match(Bool);
}
_ctx.stop = _input.LT(-1);
setState(17);
_errHandler.sync(this);
_alt = getInterpreter().adaptivePredict(_input,1,_ctx);
while ( _alt!=2 && _alt!=org.antlr.v4.runtime.atn.ATN.INVALID_ALT_NUMBER ) {
if ( _alt==1 ) {
if ( _parseListeners!=null ) triggerExitRuleEvent();
_prevctx = _localctx;
{
setState(15);
switch ( getInterpreter().adaptivePredict(_input,0,_ctx) ) {
case 1:
{
_localctx = new ExprContext(_parentctx, _parentState);
pushNewRecursionContext(_localctx, _startState, RULE_expr);
setState(9);
if (!(precpred(_ctx, 3))) throw new FailedPredicateException(this, "precpred(_ctx, 3)");
setState(10); match(AND);
setState(11); expr(4);
}
break;
case 2:
{
_localctx = new ExprContext(_parentctx, _parentState);
pushNewRecursionContext(_localctx, _startState, RULE_expr);
setState(12);
if (!(precpred(_ctx, 2))) throw new FailedPredicateException(this, "precpred(_ctx, 2)");
setState(13); match(OR);
setState(14); expr(3);
}
break;
}
}
}
setState(19);
_errHandler.sync(this);
_alt = getInterpreter().adaptivePredict(_input,1,_ctx);
}
}
}
catch (RecognitionException re) {
_localctx.exception = re;
_errHandler.reportError(this, re);
_errHandler.recover(this, re);
}
finally {
unrollRecursionContexts(_parentctx);
}
return _localctx;
}
public boolean sempred(RuleContext _localctx, int ruleIndex, int predIndex) {
switch (ruleIndex) {
case 1: return expr_sempred((ExprContext)_localctx, predIndex);
}
return true;
}
private boolean expr_sempred(ExprContext _localctx, int predIndex) {
switch (predIndex) {
case 0: return precpred(_ctx, 3);
case 1: return precpred(_ctx, 2);
}
return true;
}
public static final String _serializedATN =
"\3\u0430\ud6d1\u8206\uad2d\u4417\uaef1\u8d80\uaadd\3\r\27\4\2\t\2\4\3"+
"\t\3\3\2\3\2\3\3\3\3\3\3\3\3\3\3\3\3\3\3\3\3\3\3\7\3\22\n\3\f\3\16\3\25"+
"\13\3\3\3\2\3\4\4\2\4\2\2\26\2\6\3\2\2\2\4\b\3\2\2\2\6\7\7\5\2\2\7\3\3"+
"\2\2\2\b\t\b\3\1\2\t\n\7\3\2\2\n\23\3\2\2\2\13\f\f\5\2\2\f\r\7\b\2\2\r"+
"\22\5\4\3\6\16\17\f\4\2\2\17\20\7\t\2\2\20\22\5\4\3\5\21\13\3\2\2\2\21"+
"\16\3\2\2\2\22\25\3\2\2\2\23\21\3\2\2\2\23\24\3\2\2\2\24\5\3\2\2\2\25"+
"\23\3\2\2\2\4\21\23";
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);
}
}
}