public final Pattern_streamContext pattern_stream() throws RecognitionException {
Pattern_streamContext _localctx = new Pattern_streamContext(_ctx, getState());
enterRule(_localctx, 84, RULE_pattern_stream);
try {
setState(733);
switch ( getInterpreter().adaptivePredict(_input,66,_ctx) ) {
case 1:
enterOuterAlt(_localctx, 1);
{
setState(731); every_pattern_source_chain(0);
}
break;
case 2:
enterOuterAlt(_localctx, 2);
{
setState(732); absent_pattern_source_chain();
}
break;
}
}
catch (RecognitionException re) {
_localctx.exception = re;
_errHandler.reportError(this, re);
_errHandler.recover(this, re);
}
finally {
exitRule();
}
return _localctx;
}