AST tmp2120_AST_in = (AST)_t;
AST tmp2119_AST_in = (AST)_t;
	public final void releaseexternalstate(AST _t) throws RecognitionException {				AST releaseexternalstate_AST_in = (_t == ASTNULL) ? null : (AST)_t;				AST __t2206 = _t;		AST tmp2119_AST_in = (AST)_t;		match(_t,RELEASE);		_t = _t.getFirstChild();		AST tmp2120_AST_in = (AST)_t;		match(_t,EXTERNAL);		_t = _t.getNextSibling();		{		if (_t==null) _t=ASTNULL;		if ((_t.getType()==PROCEDURE)) {			AST tmp2121_AST_in = (AST)_t;			match(_t,PROCEDURE);			_t = _t.getNextSibling();		}		else if ((_tokenSet_3.member(_t.getType()))) {		}		else {			throw new NoViableAltException(_t);		}				}		expression(_t);		_t = _retTree;		{		if (_t==null) _t=ASTNULL;		switch ( _t.getType()) {		case NOERROR_KW:		{			AST tmp2122_AST_in = (AST)_t;			match(_t,NOERROR_KW);			_t = _t.getNextSibling();			break;		}		case EOF:		case PERIOD:		{			break;		}		default:		{			throw new NoViableAltException(_t);		}		}		}		state_end(_t);		_t = _retTree;		_t = __t2206;		_t = _t.getNextSibling();		_retTree = _t;	}