AST __t1688 = _t;
AST __t1694 = _t;
	public final void collatephrase(AST _t) throws RecognitionException {				AST collatephrase_AST_in = (_t == ASTNULL) ? null : (AST)_t;				AST __t1688 = _t;		AST tmp211_AST_in = (AST)_t;		match(_t,COLLATE);		_t = _t.getFirstChild();		funargs(_t);		_t = _retTree;		{		if (_t==null) _t=ASTNULL;		switch ( _t.getType()) {		case DESCENDING:		{			AST tmp212_AST_in = (AST)_t;			match(_t,DESCENDING);			_t = _t.getNextSibling();			break;		}		case 3:		{			break;		}		default:		{			throw new NoViableAltException(_t);		}		}		}		_t = __t1688;		_t = _t.getNextSibling();		_retTree = _t;	}