org.exist.xquery.parser.XQueryAST xpath_AST_in = (org.exist.xquery.parser.XQueryAST)_t;
org.exist.xquery.parser.XQueryAST xpath_AST_in = (_t == ASTNULL) ? null : (org.exist.xquery.parser.XQueryAST)_t;
	public final void xpath(AST _t,		PathExpr path	) throws RecognitionException {				org.exist.xquery.parser.XQueryAST xpath_AST_in = (org.exist.xquery.parser.XQueryAST)_t;		context.setRootExpression(path);				try {      // for error handling			module(_t,path);			_t = _retTree;								context.resolveForwardReferences();						}		catch (RecognitionException e) {			handleException(e);		}		catch (EXistException e) {			handleException(e);		}		catch (PermissionDeniedException e) {			handleException(e);		}		catch (XPathException e) {			handleException(e);		}		_retTree = _t;	}